multi-registry package discovery and resolution, version-aware git repository cloning with tag matching, pypi registry integration for python package source code, crates.io registry integration for rust package source code, direct git repository url support with version pinning, github and gitlab repository resolution with shorthand syntax, ai agent context injection via agents.md generation, incremental package fetch with deduplication and update detection, package removal and cleanup with metadata synchronization, list and inspect fetched packages with metadata reporting, typescript configuration integration for source code indexing, gitignore management for opensrc directory, command-line interface with commander.js argument parsing, npm registry integration with version resolution

opensrc

ModelFree

Fetch source code for npm packages to give AI coding agents deeper context

Open Source

/ 100

14 capabilities

Capabilities14 decomposed

multi-registry package discovery and resolution

Medium confidence

Automatically resolves package names across npm, PyPI, and Crates.io registries by querying their respective APIs (registry.npmjs.org, pypi.org, crates.io) to discover the authoritative Git repository URL for a given package and version. Uses registry-specific parsing logic to extract repository metadata from package manifests, handling version pinning and tag/commit matching to ensure the cloned source corresponds exactly to the installed dependency version.

Solves for

I want to fetch source code for an npm package my project depends on without manually finding its GitHub URLI need to get the exact version of a package's source code that matches what's installed in my node_modulesI want to support multiple package ecosystems (npm, Python, Rust) in a single tool without learning different discovery workflows

Best for

AI coding agents needing implementation context beyond type definitions

teams building LLM-powered development tools that require dependency source code

developers integrating opensrc into polyglot projects with npm, Python, and Rust dependencies

Requires

Node.js 18.0.0 or higher

Network access to npm, PyPI, or Crates.io registries

Git installed locally for tag/commit resolution

Limitations

Registry API rate limits may throttle bulk package resolution (npm: 1000 requests/hour for unauthenticated)

Private packages on npm require authentication tokens; PyPI private indexes not supported

Monorepo packages with non-standard repository URLs may fail discovery if metadata is incomplete

What makes it unique

Unified registry abstraction layer supporting npm, PyPI, and Crates.io with version-aware tag/commit matching, rather than requiring separate tools per ecosystem or manual URL lookup

vs alternatives

Faster than manual GitHub searches and more reliable than regex-based repository URL extraction because it queries authoritative registry APIs and matches exact installed versions to Git commits

version-aware git repository cloning with tag matching

Medium confidence

Clones Git repositories (from GitHub, GitLab, or direct URLs) and checks out the specific Git tag or commit corresponding to the installed package version. Uses simple-git library for Git operations and implements a version-to-tag resolution strategy that handles semantic versioning, pre-release tags, and commit hashes. Stores cloned repositories in a local opensrc/ directory structure with metadata tracking to enable incremental updates and deduplication.

Solves for

I want to clone a dependency's source code at the exact version my project uses, not the latest main branchI need to update a previously cloned dependency to a new version without re-cloning the entire repositoryI want to organize all fetched source code in a predictable directory structure that AI agents can reliably reference

Best for

projects with pinned dependency versions requiring reproducible source code snapshots

AI agents that need consistent, version-matched context across multiple runs

teams managing large dependency trees where incremental updates reduce clone time

Requires

Git 2.0+ installed and accessible in PATH

Network access to GitHub, GitLab, or other Git hosting providers

Write permissions to project directory for opensrc/ folder creation

Limitations

Cloning large repositories (e.g., React, Next.js) may consume significant disk space (100MB+) and network bandwidth

Git tag resolution fails if a package version has no corresponding Git tag (requires fallback to commit hash lookup)

Shallow clones are not used by default, so full history is downloaded; no --depth option for bandwidth optimization

What makes it unique

Implements version-aware tag/commit resolution that matches installed package versions to exact Git commits, with metadata-driven incremental updates, rather than always cloning latest main or requiring manual version specification

vs alternatives

More reliable than simple git clone + git checkout because it queries registry metadata to find the correct tag before cloning, avoiding failed checkouts on version mismatches

pypi registry integration for python package source code

Medium confidence

Queries the PyPI registry (pypi.org) to resolve Python package names to Git repository URLs and match installed versions to Git tags. Parses package metadata from PyPI's JSON API to extract the Home-page or Project-URL fields, handles version specifiers, and resolves them to specific Git commits. Supports the pypi: prefix syntax to distinguish Python packages from npm packages in the CLI.

Solves for

I want to fetch source code for a Python package dependency in my projectI need to match a specific Python package version to its Git repositoryI want to use opensrc for polyglot projects with both npm and Python dependencies

Best for

Python projects or polyglot projects with Python dependencies

teams using pip or poetry for dependency management

AI agents that need context about Python library implementations

Requires

Node.js 18.0.0+

Network access to pypi.org

Python package with valid repository metadata in PyPI

Limitations

PyPI metadata is less standardized than npm; many packages have incomplete or missing repository URLs

Private PyPI indexes are not supported; only public pypi.org is queried

Version specifiers are less flexible than npm; pre-release and local version identifiers may not resolve correctly

What makes it unique

Extends opensrc to Python ecosystem via PyPI registry integration with pypi: prefix syntax, enabling unified source code fetching across npm and Python dependencies

vs alternatives

Enables polyglot projects to use a single tool for dependency source code fetching instead of separate npm and Python-specific tools; more convenient than manual PyPI lookups because it automates repository discovery

crates.io registry integration for rust package source code

Medium confidence

Queries the Crates.io registry to resolve Rust crate names to Git repository URLs and match installed versions to Git tags. Parses crate metadata from Crates.io's API to extract the repository field, handles semantic versioning, and resolves versions to specific Git commits. Supports the crates: prefix syntax to distinguish Rust crates from npm packages in the CLI.

Solves for

I want to fetch source code for a Rust crate dependency in my projectI need to match a specific Rust crate version to its Git repositoryI want to use opensrc for polyglot projects with Rust, Node.js, and Python dependencies

Best for

Rust projects or polyglot projects with Rust dependencies

teams using Cargo for dependency management

AI agents that need context about Rust library implementations

Requires

Node.js 18.0.0+

Network access to crates.io

Rust crate with valid repository metadata in Crates.io

Limitations

Crates.io metadata is less standardized than npm; some crates have missing or incorrect repository URLs

Private crate registries are not supported; only public crates.io is queried

Yanked crate versions may not have corresponding Git tags; resolution may fail

What makes it unique

Extends opensrc to Rust ecosystem via Crates.io registry integration with crates: prefix syntax, enabling unified source code fetching across npm, Python, and Rust dependencies

vs alternatives

Enables polyglot projects to use a single tool for all dependency source code instead of separate tools per language; more convenient than manual Crates.io lookups because it automates repository discovery and version matching

direct git repository url support with version pinning

Medium confidence

Accepts direct Git repository URLs (https://github.com/user/repo or git+ssh://git@github.com/user/repo) as package specifiers, bypassing registry lookup. Allows developers to fetch source code from arbitrary Git repositories and pin specific versions via Git tags or commit hashes. Useful for private repositories, forks, or packages not published to standard registries.

Solves for

I want to fetch source code from a private Git repository that's not on npm or PyPII need to use a fork or custom version of a package from a non-standard Git URLI want to pin a specific Git commit or tag without relying on registry metadata

Best for

teams using private Git repositories for internal packages

projects with custom forks of open-source packages

developers needing fine-grained control over repository URLs and versions

Requires

Node.js 18.0.0+

Git 2.0+ installed

Network access to Git repository (with authentication if private)

Limitations

No automatic version discovery; developers must manually specify Git tags or commit hashes

Private repositories require Git SSH keys or HTTPS credentials configured; no built-in authentication

No validation that the Git URL is accessible before cloning; failures occur during clone operation

What makes it unique

Supports direct Git URLs as first-class package specifiers, bypassing registry lookup entirely and enabling private repository support, rather than requiring registry-published packages only

vs alternatives

More flexible than registry-only tools because it supports private repositories and custom forks; more convenient than manual git clone because it integrates with opensrc's metadata and cleanup workflows

github and gitlab repository resolution with shorthand syntax

Medium confidence

Supports shorthand syntax for GitHub and GitLab repositories (e.g., 'facebook/react', 'github:vercel/next.js', 'gitlab:gitlab-org/gitlab') that automatically constructs the full Git URL and resolves to the appropriate Git host API. Handles GitHub and GitLab API queries to discover repository metadata and version tags without requiring full HTTPS URLs. Supports both public and private repositories with appropriate authentication.

Solves for

I want to fetch source code using GitHub shorthand syntax without typing full URLsI need to fetch from GitLab repositories using a consistent syntax with GitHubI want opensrc to automatically resolve shorthand repository names to full Git URLs

Best for

developers familiar with GitHub/GitLab shorthand syntax (owner/repo)

teams using GitHub or GitLab as primary Git hosting

projects that mix registry packages with direct repository references

Requires

Node.js 18.0.0+

Network access to GitHub or GitLab APIs

GitHub/GitLab API token for private repositories (optional for public)

Limitations

GitHub API has rate limits (60 requests/hour unauthenticated, 5000 authenticated); bulk operations may be throttled

Private repositories require GitHub/GitLab API tokens; opensrc does not manage token storage or retrieval

Shorthand syntax assumes GitHub by default; GitLab requires explicit gitlab: prefix

What makes it unique

Provides GitHub/GitLab shorthand syntax (owner/repo) that automatically resolves to full Git URLs and queries host APIs for metadata, rather than requiring full HTTPS URLs or manual repository lookup

vs alternatives

More convenient than full Git URLs because it uses familiar GitHub/GitLab shorthand; more discoverable than direct URLs because it queries host APIs for available versions and metadata

ai agent context injection via agents.md generation

Medium confidence

Automatically generates and updates an AGENTS.md file in the project root that documents all fetched source code locations, versions, and directory structures. This metadata file is designed to be consumed by AI coding agents (like Claude, GPT-4, or custom LLM-based tools) to understand what source code is available locally and how to reference it in prompts. The file is updated incrementally as packages are fetched or removed, maintaining a single source of truth for agent context.

Solves for

I want AI agents to know which dependency source code is available locally without having to scan the filesystemI need to provide structured metadata to LLM-based coding assistants so they can reference dependency implementations in their responsesI want to automatically update agent context when dependencies are added or removed, without manual documentation

Best for

teams using AI coding agents (Cursor, Copilot, Claude, custom LLM tools) that need structured context about dependencies

projects where developers want agents to reference actual implementation code rather than just type definitions

CI/CD pipelines that generate agent context as part of the build process

Requires

Write permissions to project root directory

Node.js 18.0.0+

At least one package fetched via opensrc fetch command

Limitations

AGENTS.md format is custom and not standardized; different AI agents may parse it differently or ignore it entirely

No built-in validation that referenced source code paths actually exist; stale entries may accumulate if cleanup is incomplete

File is human-readable but not machine-parseable in a structured format (YAML/JSON); parsing requires regex or custom logic

What makes it unique

Generates a dedicated AGENTS.md metadata file specifically designed for AI agent consumption, rather than relying on agents to discover source code via filesystem scanning or requiring manual context injection in prompts

vs alternatives

More efficient than manually documenting dependency source locations in prompts because it centralizes metadata in a file that agents can reference, reducing token usage and improving consistency across multiple agent interactions

incremental package fetch with deduplication and update detection

Medium confidence

Implements a fetch command that intelligently manages local source code by detecting previously cloned packages, comparing installed versions against cached metadata, and only cloning new or updated packages. Uses a metadata index (stored as JSON in opensrc/.opensrc.json or similar) to track package names, versions, clone timestamps, and repository URLs. Supports batch fetching of multiple packages in a single command with progress reporting and error handling for failed clones.

Solves for

I want to fetch multiple dependencies at once without re-cloning packages I've already fetchedI need to update my source code cache when I upgrade a dependency versionI want to see which packages were successfully fetched and which failed, with clear error messages

Best for

projects with large dependency trees (20+ packages) where incremental updates save significant time

CI/CD pipelines that run opensrc fetch on every build and need to minimize network usage

developers iterating on dependency versions who want fast feedback on source code availability

Requires

Node.js 18.0.0+

Git 2.0+ installed

Network access to package registries and Git hosts

Limitations

Metadata index can become stale if opensrc/ directory is manually modified outside the CLI; no automatic reconciliation

No built-in garbage collection; removed packages leave orphaned directories unless clean command is run

Batch fetch does not parallelize Git operations; sequential cloning limits throughput on high-latency networks

What makes it unique

Implements metadata-driven incremental fetching with deduplication that skips already-cloned packages and only updates changed versions, rather than always performing full clones or requiring manual tracking of what's been fetched

vs alternatives

Faster than running git clone for every package because it maintains a metadata index and skips clones for unchanged versions; more reliable than filesystem-based detection because metadata is explicit and version-aware

package removal and cleanup with metadata synchronization

Medium confidence

Provides remove and clean commands that delete cloned source code from the opensrc/ directory and synchronize the metadata index. The remove command deletes specific packages by name, while the clean command removes all fetched source code and resets the metadata index. Both commands update AGENTS.md to reflect removed packages, ensuring the agent context file stays in sync with actual available source code.

Solves for

I want to delete source code for a dependency I no longer need to free up disk spaceI need to clean up my entire opensrc/ directory when switching projects or resetting my development environmentI want to ensure AGENTS.md is updated when I remove packages so agents don't reference deleted code

Best for

developers managing disk space on resource-constrained machines (laptops, CI runners)

teams that frequently switch between projects and want clean state

projects where dependency source code is ephemeral and regenerated on demand

Requires

Node.js 18.0.0+

Write permissions to opensrc/ directory and project root

metadata index file (opensrc/.opensrc.json or equivalent) in valid state

Limitations

No dry-run mode; remove and clean commands execute immediately without confirmation

No undo/rollback; deleted source code must be re-fetched if needed again

Partial cleanup may occur if file deletion fails mid-operation; no transactional guarantees

What makes it unique

Provides both granular (remove specific packages) and bulk (clean all) cleanup operations with automatic metadata and AGENTS.md synchronization, rather than requiring manual directory deletion and metadata updates

vs alternatives

More reliable than manual rm -rf because it updates metadata and agent context atomically, preventing orphaned metadata entries or stale agent references

list and inspect fetched packages with metadata reporting

Medium confidence

Implements a list command that displays all currently fetched packages with their versions, repository URLs, clone timestamps, and local directory paths. Reads the metadata index to provide a structured view of available source code without scanning the filesystem. Supports filtering and formatting options to help developers understand what's available and when it was last updated.

Solves for

I want to see what packages I've already fetched and their versions at a glanceI need to verify that a specific package version was cloned correctlyI want to check when a package's source code was last updated to decide if I need to re-fetch

Best for

developers managing large dependency trees who need visibility into what's cached locally

CI/CD pipelines that need to report on available source code for audit or debugging

teams troubleshooting agent context issues by verifying which packages are available

Requires

Node.js 18.0.0+

metadata index file (opensrc/.opensrc.json) must exist and be valid JSON

Limitations

List command only shows metadata; does not validate that source code files actually exist on disk

No filtering by ecosystem (npm vs PyPI vs Crates) in current implementation

Timestamps reflect clone time, not last update time of the package itself

What makes it unique

Provides metadata-driven listing that reads from an index rather than filesystem scanning, enabling fast queries and structured output without I/O overhead

vs alternatives

Faster than ls -la opensrc/ because it reads pre-computed metadata; more reliable than filesystem-based detection because it reflects the actual state tracked by opensrc

typescript configuration integration for source code indexing

Medium confidence

Integrates with project TypeScript configuration (tsconfig.json) to optionally index fetched source code paths and make them resolvable by TypeScript compiler and IDEs. Manages path mappings or baseUrl settings to enable developers and AI agents to import from fetched source code using standard module resolution, rather than relative paths to opensrc/ directories. Handles tsconfig.json parsing, modification, and restoration to avoid conflicts with existing configurations.

Solves for

I want TypeScript to resolve imports from fetched source code as if they were installed packagesI need IDE autocomplete and type checking to work with fetched source codeI want AI agents to be able to reference dependency implementations using standard import syntax

Best for

TypeScript projects where developers want seamless access to dependency source code

teams using AI agents that generate code with import statements referencing fetched packages

projects with complex dependency graphs where path mappings improve code navigation

Requires

TypeScript 4.0+ (for path mapping support)

tsconfig.json file in project root

Node.js 18.0.0+

Limitations

tsconfig.json modifications may conflict with existing path mappings or baseUrl settings

No automatic rollback if tsconfig.json is corrupted; manual restoration may be required

IDE support for dynamically modified tsconfig.json varies; some IDEs require restart

What makes it unique

Automatically manages TypeScript path mappings to make fetched source code resolvable via standard module resolution, rather than requiring manual tsconfig.json edits or relative path imports

vs alternatives

More convenient than manual path mapping because it automatically generates entries for all fetched packages; more reliable than relative imports because it uses TypeScript's standard resolution mechanism

gitignore management for opensrc directory

Medium confidence

Automatically manages .gitignore entries to exclude the opensrc/ directory and its contents from version control. Detects existing .gitignore files, appends opensrc/ entry if not already present, and handles edge cases like missing .gitignore files or existing opensrc entries. Ensures that fetched source code is not committed to the repository, reducing repository size and avoiding merge conflicts when dependencies are updated.

Solves for

I want to ensure fetched source code is not accidentally committed to my Git repositoryI need to add opensrc/ to .gitignore without manually editing the fileI want to prevent merge conflicts when team members fetch different versions of dependencies

Best for

teams using opensrc in shared repositories where source code should not be version-controlled

projects with large dependencies where committing source code would bloat the repository

CI/CD pipelines that fetch source code on-demand and need to prevent accidental commits

Requires

Node.js 18.0.0+

Write permissions to project root directory

Git repository initialized (optional, but recommended)

Limitations

Does not remove opensrc/ from Git history if it was previously committed; requires git rm --cached

Appends to .gitignore without deduplication; multiple opensrc entries may accumulate

No validation that .gitignore is properly formatted after modification

What makes it unique

Automatically manages .gitignore entries for opensrc/ directory as part of the fetch workflow, rather than requiring manual .gitignore edits or relying on developers to remember to exclude the directory

vs alternatives

More reliable than manual .gitignore edits because it's integrated into the fetch command and prevents accidental commits; more convenient than post-hoc git rm --cached because it prevents the problem before it occurs

command-line interface with commander.js argument parsing

Medium confidence

Provides a CLI built with Commander.js that exposes four primary commands (fetch, list, remove, clean) with argument parsing, option flags, and help documentation. Handles command dispatch, error handling, and user feedback through console output. Supports both global installation (npm install -g opensrc) and npx usage without installation, making the tool accessible to developers without setup overhead.

Solves for

I want to run opensrc commands from the terminal without writing custom scriptsI need help understanding command syntax and available optionsI want to use opensrc in CI/CD pipelines with standard command-line arguments

Best for

developers comfortable with CLI tools and shell scripting

CI/CD pipelines that invoke opensrc as a subprocess

teams that want to standardize dependency source code fetching across projects

Requires

Node.js 18.0.0+

npm or yarn for installation

Commander.js library (included in opensrc dependencies)

Limitations

No interactive mode; all arguments must be specified on the command line

Error messages are printed to console; no structured error output (JSON) for programmatic parsing

No configuration file support; all options must be passed as CLI arguments

What makes it unique

Uses Commander.js for declarative command routing and argument parsing, providing a standard CLI interface with built-in help and error handling, rather than custom argument parsing logic

vs alternatives

More maintainable than custom argument parsing because Commander.js handles edge cases and provides consistent help formatting; more user-friendly than raw Node.js process.argv because it validates arguments and provides clear error messages

npm registry integration with version resolution

Medium confidence

Queries the npm registry (registry.npmjs.org) to resolve package names to Git repository URLs and match installed versions to Git tags. Parses package.json metadata from the registry to extract the repository field, handles version specifiers (exact versions, ranges, pre-releases), and resolves them to specific Git tags or commit hashes. Supports both public npm packages and scoped packages (@org/package), with fallback logic for packages with non-standard repository metadata.

Solves for

I want to fetch source code for an npm package without manually looking up its GitHub URLI need to ensure the cloned source code matches the exact version installed in my node_modulesI want to handle scoped packages and pre-release versions correctly

Best for

Node.js/JavaScript projects with npm dependencies

teams using npm workspaces or monorepos with scoped packages

projects with pinned or pre-release dependency versions

Requires

Node.js 18.0.0+

Network access to registry.npmjs.org

npm package with valid repository metadata in package.json

Limitations

npm registry API has rate limits (1000 requests/hour for unauthenticated clients); bulk operations may be throttled

Private npm packages require authentication tokens; opensrc does not support private registry authentication

Some packages have incomplete or incorrect repository metadata in npm; fallback to GitHub search may be needed

What makes it unique

Implements npm-specific registry integration with version-aware tag resolution and scoped package support, rather than generic Git URL lookup or requiring manual repository specification

vs alternatives

More reliable than GitHub API searches because it uses authoritative npm registry metadata; more efficient than cloning and inspecting package.json because it queries the registry API directly

Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.

Related Artifactssharing capabilities

Artifacts that share capabilities with opensrc, ranked by overlap. Discovered automatically through the match graph.

MCP Server21

Package Registry Search

** - Search and get up-to-date information about NPM, Cargo, PyPi, and NuGet packages.

multi-registry package metadata retrievalcross-registry package search and discoverypackage dependency graph extraction

3 shared capabilities

Product19

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instructions to install `uv` / `uvx` and [these](https://pip.pypa.io/en/stable/installation/) to install `pip`.

fast python package installation with dependency resolutionpython version management and toolchain selectionworkspace and monorepo dependency management

3 shared capabilities

MCP Server44

octocode-mcp

MCP server for semantic code research and context generation on real-time using LLM patterns | Search naturally across public & private repos based on your permissions | Transform any accessible codebase/s into AI-optimized knowledge on simple and complex flows | Find real implementations and live d

package registry search and dependency analysis

1 shared capability

MCP Server41

mcp-gateway-registry

Enterprise-ready MCP Gateway & Registry that centralizes AI development tools with secure OAuth authentication, dynamic tool discovery, and unified access for both autonomous AI agents and AI coding assistants. Transform scattered MCP server chaos into governed, auditable tool access with Keycloak/E

registry client library with python sdk for programmatic access

1 shared capability

Benchmark42

SWE-bench

AI coding agent benchmark — real GitHub issues, end-to-end evaluation, the standard for code agents.

multi-repository codebase indexing and navigation simulation

1 shared capability

Repository22

Best of AI

Like Michelin Guide for AI

integration with external data sources and apis

1 shared capability

Best For

✓AI coding agents needing implementation context beyond type definitions
✓teams building LLM-powered development tools that require dependency source code
✓developers integrating opensrc into polyglot projects with npm, Python, and Rust dependencies
✓projects with pinned dependency versions requiring reproducible source code snapshots
✓AI agents that need consistent, version-matched context across multiple runs
✓teams managing large dependency trees where incremental updates reduce clone time
✓Python projects or polyglot projects with Python dependencies
✓teams using pip or poetry for dependency management

Known Limitations

⚠Registry API rate limits may throttle bulk package resolution (npm: 1000 requests/hour for unauthenticated)
⚠Private packages on npm require authentication tokens; PyPI private indexes not supported
⚠Monorepo packages with non-standard repository URLs may fail discovery if metadata is incomplete
⚠Version matching relies on Git tags/commits; packages without semantic versioning tags may resolve to wrong commits
⚠Cloning large repositories (e.g., React, Next.js) may consume significant disk space (100MB+) and network bandwidth
⚠Git tag resolution fails if a package version has no corresponding Git tag (requires fallback to commit hash lookup)

Requirements

Node.js 18.0.0 or higherNetwork access to npm, PyPI, or Crates.io registriesGit installed locally for tag/commit resolutionGit 2.0+ installed and accessible in PATHNetwork access to GitHub, GitLab, or other Git hosting providersWrite permissions to project directory for opensrc/ folder creationsimple-git Node.js library (included in opensrc dependencies)Node.js 18.0.0+

Input / Output

Accepts: package name string (e.g., 'zod', 'pypi:requests', 'crates:tokio'), optional version specifier (e.g., 'zod@3.22.0'), Git repository URL (https or git+ssh), version string (semantic version, pre-release, or commit hash), package name and ecosystem (npm, PyPI, Crates.io), Python package name with pypi: prefix (e.g., 'pypi:requests', 'pypi:flask@2.3.0'), Rust crate name with crates: prefix (e.g., 'crates:serde', 'crates:tokio@1.28.0'), Git repository URL (https:// or git+ssh://), optional version specifier (Git tag or commit hash), GitHub shorthand (e.g., 'facebook/react', 'github:vercel/next.js'), GitLab shorthand (e.g., 'gitlab:gitlab-org/gitlab'), list of fetched packages with versions and local paths, package metadata (name, version, repository URL, directory structure), package specifiers (e.g., 'zod', 'zod@3.22.0', 'pypi:requests', 'crates:tokio'), multiple packages as command arguments or via stdin, package names (for remove command), no input required (for clean command), optional package name filter (e.g., 'opensrc list zod'), tsconfig.json file path, list of fetched packages with local paths, project root directory path, command name (fetch, list, remove, clean), package specifiers (e.g., 'zod', 'pypi:requests'), option flags (e.g., --help, --version), npm package name (e.g., 'zod', '@vercel/next'), optional version specifier (e.g., '3.22.0', '^3.0.0')

Produces: Git repository URL, resolved version tag or commit hash, package metadata (name, version, repository URL), cloned repository files in opensrc/<package-name>/ directory, metadata JSON file tracking version, clone timestamp, and repository URL, Git commit hash of checked-out version, package metadata (name, version, description), crate metadata (name, version, description), cloned repository in opensrc/<derived-package-name>/ directory, metadata tracking repository URL and checked-out version, resolved full Git repository URL, cloned repository in opensrc/ directory, metadata tracking repository URL and version, AGENTS.md file with structured documentation of available source code, formatted text describing package locations, versions, and file structure, cloned source code in opensrc/<package-name>/ directories, updated metadata index tracking all fetched packages, console output with fetch status (success/failure) for each package, deleted directories and files from opensrc/, updated metadata index with removed packages, updated AGENTS.md file, formatted table or JSON of package metadata (name, version, URL, timestamp, local path), console output with human-readable formatting, modified tsconfig.json with path mappings for fetched packages, backup of original tsconfig.json (optional), modified .gitignore file with opensrc/ entry, created .gitignore file if it did not exist, console output with command results or error messages, exit code (0 for success, non-zero for failure)

UnfragileRank

Adoption26%(40% weight)

Quality45%(20% weight)

Ecosystem70%(15% weight)

Match Graph10%(20% weight)

Freshness75%(5% weight)

UnfragileRank is computed from adoption signals, documentation quality, ecosystem connectivity, match graph feedback, and freshness. No artifact can pay for a higher rank.

Type: Model

14 capabilities

Visit opensrc→

Repository Details

1,877

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Language

Apache-2.0

License

Topics

aiai-codingclicoding-agentsdeveloper-toolsllmnodejsnpmsource-codetypescript

Last commit: Apr 18, 2026

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Fetch source code for npm packages to give AI coding agents deeper context

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Capabilities14 decomposed

multi-registry package discovery and resolution

Medium confidence

Solves for

Best for

AI coding agents needing implementation context beyond type definitions

teams building LLM-powered development tools that require dependency source code

developers integrating opensrc into polyglot projects with npm, Python, and Rust dependencies

Requires

Node.js 18.0.0 or higher

Network access to npm, PyPI, or Crates.io registries

Git installed locally for tag/commit resolution

Limitations

Registry API rate limits may throttle bulk package resolution (npm: 1000 requests/hour for unauthenticated)

Private packages on npm require authentication tokens; PyPI private indexes not supported

Monorepo packages with non-standard repository URLs may fail discovery if metadata is incomplete

What makes it unique

Unified registry abstraction layer supporting npm, PyPI, and Crates.io with version-aware tag/commit matching, rather than requiring separate tools per ecosystem or manual URL lookup

vs alternatives

Faster than manual GitHub searches and more reliable than regex-based repository URL extraction because it queries authoritative registry APIs and matches exact installed versions to Git commits

version-aware git repository cloning with tag matching

Medium confidence

Solves for

Best for

projects with pinned dependency versions requiring reproducible source code snapshots

AI agents that need consistent, version-matched context across multiple runs

teams managing large dependency trees where incremental updates reduce clone time

Requires

Git 2.0+ installed and accessible in PATH

Network access to GitHub, GitLab, or other Git hosting providers

Write permissions to project directory for opensrc/ folder creation

Limitations

Cloning large repositories (e.g., React, Next.js) may consume significant disk space (100MB+) and network bandwidth

Git tag resolution fails if a package version has no corresponding Git tag (requires fallback to commit hash lookup)

Shallow clones are not used by default, so full history is downloaded; no --depth option for bandwidth optimization

What makes it unique

vs alternatives

More reliable than simple git clone + git checkout because it queries registry metadata to find the correct tag before cloning, avoiding failed checkouts on version mismatches

pypi registry integration for python package source code

Medium confidence

Solves for

Best for

Python projects or polyglot projects with Python dependencies

teams using pip or poetry for dependency management

AI agents that need context about Python library implementations

Requires

Node.js 18.0.0+

Network access to pypi.org

Python package with valid repository metadata in PyPI

Limitations

PyPI metadata is less standardized than npm; many packages have incomplete or missing repository URLs

Private PyPI indexes are not supported; only public pypi.org is queried

Version specifiers are less flexible than npm; pre-release and local version identifiers may not resolve correctly

What makes it unique

Extends opensrc to Python ecosystem via PyPI registry integration with pypi: prefix syntax, enabling unified source code fetching across npm and Python dependencies

vs alternatives

crates.io registry integration for rust package source code

Medium confidence

Solves for

Best for

Rust projects or polyglot projects with Rust dependencies

teams using Cargo for dependency management

AI agents that need context about Rust library implementations

Requires

Node.js 18.0.0+

Network access to crates.io

Rust crate with valid repository metadata in Crates.io

Limitations

Crates.io metadata is less standardized than npm; some crates have missing or incorrect repository URLs

Private crate registries are not supported; only public crates.io is queried

Yanked crate versions may not have corresponding Git tags; resolution may fail

What makes it unique

Extends opensrc to Rust ecosystem via Crates.io registry integration with crates: prefix syntax, enabling unified source code fetching across npm, Python, and Rust dependencies

vs alternatives

direct git repository url support with version pinning

Medium confidence

Solves for

Best for

teams using private Git repositories for internal packages

projects with custom forks of open-source packages

developers needing fine-grained control over repository URLs and versions

Requires

Node.js 18.0.0+

Git 2.0+ installed

Network access to Git repository (with authentication if private)

Limitations

No automatic version discovery; developers must manually specify Git tags or commit hashes

Private repositories require Git SSH keys or HTTPS credentials configured; no built-in authentication

No validation that the Git URL is accessible before cloning; failures occur during clone operation

What makes it unique

Supports direct Git URLs as first-class package specifiers, bypassing registry lookup entirely and enabling private repository support, rather than requiring registry-published packages only

vs alternatives

github and gitlab repository resolution with shorthand syntax

Medium confidence

Solves for

Best for

developers familiar with GitHub/GitLab shorthand syntax (owner/repo)

teams using GitHub or GitLab as primary Git hosting

projects that mix registry packages with direct repository references

Requires

Node.js 18.0.0+

Network access to GitHub or GitLab APIs

GitHub/GitLab API token for private repositories (optional for public)

Limitations

GitHub API has rate limits (60 requests/hour unauthenticated, 5000 authenticated); bulk operations may be throttled

Private repositories require GitHub/GitLab API tokens; opensrc does not manage token storage or retrieval

Shorthand syntax assumes GitHub by default; GitLab requires explicit gitlab: prefix

What makes it unique

Provides GitHub/GitLab shorthand syntax (owner/repo) that automatically resolves to full Git URLs and queries host APIs for metadata, rather than requiring full HTTPS URLs or manual repository lookup

vs alternatives

More convenient than full Git URLs because it uses familiar GitHub/GitLab shorthand; more discoverable than direct URLs because it queries host APIs for available versions and metadata

ai agent context injection via agents.md generation

Medium confidence

Solves for

Best for

teams using AI coding agents (Cursor, Copilot, Claude, custom LLM tools) that need structured context about dependencies

projects where developers want agents to reference actual implementation code rather than just type definitions

CI/CD pipelines that generate agent context as part of the build process

Requires

Write permissions to project root directory

Node.js 18.0.0+

At least one package fetched via opensrc fetch command

Limitations

AGENTS.md format is custom and not standardized; different AI agents may parse it differently or ignore it entirely

No built-in validation that referenced source code paths actually exist; stale entries may accumulate if cleanup is incomplete

File is human-readable but not machine-parseable in a structured format (YAML/JSON); parsing requires regex or custom logic

What makes it unique

vs alternatives

incremental package fetch with deduplication and update detection

Medium confidence

Solves for

Best for

projects with large dependency trees (20+ packages) where incremental updates save significant time

CI/CD pipelines that run opensrc fetch on every build and need to minimize network usage

developers iterating on dependency versions who want fast feedback on source code availability

Requires

Node.js 18.0.0+

Git 2.0+ installed

Network access to package registries and Git hosts

Limitations

Metadata index can become stale if opensrc/ directory is manually modified outside the CLI; no automatic reconciliation

No built-in garbage collection; removed packages leave orphaned directories unless clean command is run

Batch fetch does not parallelize Git operations; sequential cloning limits throughput on high-latency networks

What makes it unique

vs alternatives

package removal and cleanup with metadata synchronization

Medium confidence

Solves for

Best for

developers managing disk space on resource-constrained machines (laptops, CI runners)

teams that frequently switch between projects and want clean state

projects where dependency source code is ephemeral and regenerated on demand

Requires

Node.js 18.0.0+

Write permissions to opensrc/ directory and project root

metadata index file (opensrc/.opensrc.json or equivalent) in valid state

Limitations

No dry-run mode; remove and clean commands execute immediately without confirmation

No undo/rollback; deleted source code must be re-fetched if needed again

Partial cleanup may occur if file deletion fails mid-operation; no transactional guarantees

What makes it unique

vs alternatives

More reliable than manual rm -rf because it updates metadata and agent context atomically, preventing orphaned metadata entries or stale agent references

list and inspect fetched packages with metadata reporting

Medium confidence

Solves for

Best for

developers managing large dependency trees who need visibility into what's cached locally

CI/CD pipelines that need to report on available source code for audit or debugging

teams troubleshooting agent context issues by verifying which packages are available

Requires

Node.js 18.0.0+

metadata index file (opensrc/.opensrc.json) must exist and be valid JSON

Limitations

List command only shows metadata; does not validate that source code files actually exist on disk

No filtering by ecosystem (npm vs PyPI vs Crates) in current implementation

Timestamps reflect clone time, not last update time of the package itself

What makes it unique

Provides metadata-driven listing that reads from an index rather than filesystem scanning, enabling fast queries and structured output without I/O overhead

vs alternatives

Faster than ls -la opensrc/ because it reads pre-computed metadata; more reliable than filesystem-based detection because it reflects the actual state tracked by opensrc

typescript configuration integration for source code indexing

Medium confidence

Solves for

Best for

TypeScript projects where developers want seamless access to dependency source code

teams using AI agents that generate code with import statements referencing fetched packages

projects with complex dependency graphs where path mappings improve code navigation

Requires

TypeScript 4.0+ (for path mapping support)

tsconfig.json file in project root

Node.js 18.0.0+

Limitations

tsconfig.json modifications may conflict with existing path mappings or baseUrl settings

No automatic rollback if tsconfig.json is corrupted; manual restoration may be required

IDE support for dynamically modified tsconfig.json varies; some IDEs require restart

What makes it unique

Automatically manages TypeScript path mappings to make fetched source code resolvable via standard module resolution, rather than requiring manual tsconfig.json edits or relative path imports

vs alternatives

gitignore management for opensrc directory

Medium confidence

Solves for

Best for

teams using opensrc in shared repositories where source code should not be version-controlled

projects with large dependencies where committing source code would bloat the repository

CI/CD pipelines that fetch source code on-demand and need to prevent accidental commits

Requires

Node.js 18.0.0+

Write permissions to project root directory

Git repository initialized (optional, but recommended)

Limitations

Does not remove opensrc/ from Git history if it was previously committed; requires git rm --cached

Appends to .gitignore without deduplication; multiple opensrc entries may accumulate

No validation that .gitignore is properly formatted after modification

What makes it unique

vs alternatives

command-line interface with commander.js argument parsing

Medium confidence

Solves for

Best for

developers comfortable with CLI tools and shell scripting

CI/CD pipelines that invoke opensrc as a subprocess

teams that want to standardize dependency source code fetching across projects

Requires

Node.js 18.0.0+

npm or yarn for installation

Commander.js library (included in opensrc dependencies)

Limitations

No interactive mode; all arguments must be specified on the command line

Error messages are printed to console; no structured error output (JSON) for programmatic parsing

No configuration file support; all options must be passed as CLI arguments

What makes it unique

Uses Commander.js for declarative command routing and argument parsing, providing a standard CLI interface with built-in help and error handling, rather than custom argument parsing logic

vs alternatives

npm registry integration with version resolution

Medium confidence

Solves for

Best for

Node.js/JavaScript projects with npm dependencies

teams using npm workspaces or monorepos with scoped packages

projects with pinned or pre-release dependency versions

Requires

Node.js 18.0.0+

Network access to registry.npmjs.org

npm package with valid repository metadata in package.json

Limitations

npm registry API has rate limits (1000 requests/hour for unauthenticated clients); bulk operations may be throttled

Private npm packages require authentication tokens; opensrc does not support private registry authentication

Some packages have incomplete or incorrect repository metadata in npm; fallback to GitHub search may be needed

What makes it unique

Implements npm-specific registry integration with version-aware tag resolution and scoped package support, rather than generic Git URL lookup or requiring manual repository specification

vs alternatives

More reliable than GitHub API searches because it uses authoritative npm registry metadata; more efficient than cloning and inspecting package.json because it queries the registry API directly

Capabilities are decomposed by AI analysis. Each maps to specific user intents and improves with match feedback.

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opensrc

Capabilities14 decomposed

multi-registry package discovery and resolution

version-aware git repository cloning with tag matching

pypi registry integration for python package source code

crates.io registry integration for rust package source code

direct git repository url support with version pinning

github and gitlab repository resolution with shorthand syntax

ai agent context injection via agents.md generation

incremental package fetch with deduplication and update detection

package removal and cleanup with metadata synchronization

list and inspect fetched packages with metadata reporting

typescript configuration integration for source code indexing

gitignore management for opensrc directory

command-line interface with commander.js argument parsing

npm registry integration with version resolution

Related Artifactssharing capabilities

Package Registry Search

these

octocode-mcp

mcp-gateway-registry

SWE-bench

Best of AI

Best For

Known Limitations

Requirements

Input / Output

UnfragileRank

Repository Details

About

Categories

Alternatives to opensrc

Are you the builder of opensrc?

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Data Sources

opensrc

Capabilities14 decomposed

multi-registry package discovery and resolution

version-aware git repository cloning with tag matching

pypi registry integration for python package source code

crates.io registry integration for rust package source code

direct git repository url support with version pinning

github and gitlab repository resolution with shorthand syntax

ai agent context injection via agents.md generation

incremental package fetch with deduplication and update detection

package removal and cleanup with metadata synchronization

list and inspect fetched packages with metadata reporting

typescript configuration integration for source code indexing

gitignore management for opensrc directory

command-line interface with commander.js argument parsing

npm registry integration with version resolution

Related Artifactssharing capabilities

Package Registry Search

these

octocode-mcp

mcp-gateway-registry

SWE-bench

Best of AI

Best For

Known Limitations

Requirements

Input / Output

UnfragileRank

Repository Details

About

Categories

Alternatives to opensrc

Are you the builder of opensrc?

Get the weekly brief

Data Sources