{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"github-makafeli--n8n-workflow-builder","slug":"makafeli--n8n-workflow-builder","name":"n8n-workflow-builder","type":"mcp","url":"https://github.com/makafeli/n8n-workflow-builder","page_url":"https://unfragile.ai/makafeli--n8n-workflow-builder","categories":["mcp-servers","automation"],"tags":["ai-assistant","ai-automation","ai-integration","api-integration","api-wrapper","automation-tools","chatgpt-integration","claude-desktop","low-code","mcp-server","model-context-protocol","n8n","no-code","nodejs","rest-api","typescript","webhook","workflow-automation","workflow-management"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"github-makafeli--n8n-workflow-builder__cap_0","uri":"capability://tool.use.integration.mcp.based.n8n.workflow.crud.operations.with.schema.validation","name":"mcp-based n8n workflow crud operations with schema validation","description":"Exposes standardized MCP tools (create_workflow, get_workflow, update_workflow, delete_workflow, list_workflows) that translate natural language requests from Claude/ChatGPT into n8n HTTP API calls with JSON payload validation. The server implements tool handlers that parse MCP tool requests, validate workflow schema compliance, and forward authenticated requests to the n8n instance, returning structured workflow metadata (ID, name, nodes, connections, active status) back to the client.","intents":["Create a new workflow in n8n from an AI assistant without touching the UI","Retrieve and inspect existing workflow definitions programmatically","Update workflow configuration (nodes, connections, settings) via natural language","Delete workflows by ID through an AI-driven interface","List all workflows to discover what automation already exists"],"best_for":["AI assistant developers building n8n automation agents","Teams automating workflow management across multiple n8n instances","Non-technical users who want to manage n8n via conversational AI"],"limitations":["No built-in workflow validation — relies on n8n API to reject invalid schemas; malformed node definitions will fail at n8n side","Workflow complexity is limited by n8n's node graph structure; deeply nested conditional logic requires manual node configuration","No transaction support — partial workflow creation failures leave orphaned nodes; requires manual cleanup","Update operations are full-document replacements; no field-level patching, so concurrent edits risk data loss"],"requires":["Node.js 14+","n8n instance with accessible HTTP API (self-hosted or cloud)","Valid N8N_API_KEY environment variable with workflow management permissions","N8N_HOST environment variable pointing to n8n API endpoint (e.g., http://localhost:5678/api)"],"input_types":["JSON workflow definition (nodes array, connections array, settings object)","Workflow ID (string UUID)","Workflow name and metadata (strings)"],"output_types":["Structured workflow object with full definition","Workflow metadata (ID, name, active status, creation date)","List of workflow summaries with pagination support"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_1","uri":"capability://automation.workflow.workflow.activation.deactivation.state.management","name":"workflow activation/deactivation state management","description":"Provides activate_workflow and deactivate_workflow MCP tools that toggle the active status of n8n workflows without modifying their definitions. These tools call n8n's state-change endpoints, returning confirmation of the new active/inactive status. The implementation handles idempotent state transitions (activating an already-active workflow returns success without error) and tracks execution history changes when workflows are toggled.","intents":["Enable a workflow to start processing triggers and webhooks","Disable a workflow temporarily without deleting it","Pause all workflows in a category (e.g., staging vs production)","Verify the current active status of a workflow before triggering execution"],"best_for":["DevOps teams managing workflow lifecycle across environments","Automation engineers who need to pause workflows during maintenance","AI agents that conditionally activate workflows based on external signals"],"limitations":["No cascading activation — dependent workflows must be activated separately; no dependency graph traversal","State changes are immediate with no rollback capability; no transaction log for audit trails","Activation status is binary; no scheduling for future activation/deactivation (e.g., activate at 9 AM)","No validation that workflow is in a valid state before activation; can activate broken workflows that will fail at runtime"],"requires":["N8N_API_KEY with workflow activation permissions","Valid workflow ID (UUID format)","n8n instance running and accessible"],"input_types":["Workflow ID (string UUID)"],"output_types":["Confirmation object with workflow ID, new active status, timestamp"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_10","uri":"capability://automation.workflow.environment.variable.configuration.and.validation","name":"environment variable configuration and validation","description":"Reads and validates required environment variables (N8N_HOST, N8N_API_KEY) at server startup, ensuring the server can connect to n8n before accepting client requests. The implementation checks that N8N_HOST is a valid URL and N8N_API_KEY is non-empty, returning startup errors if configuration is missing or invalid. The server logs configuration status (without exposing sensitive values) for debugging.","intents":["Configure n8n connection details without modifying code","Validate configuration at startup to catch errors early","Support multiple n8n instances through environment variables","Enable secure credential management through environment isolation"],"best_for":["DevOps teams deploying n8n-workflow-builder in containerized environments","Teams managing multiple n8n instances with different configurations","Security teams enforcing credential isolation through environment variables"],"limitations":["Configuration is static; changes require server restart","No support for configuration files or dynamic configuration sources","Environment variables are plaintext; no encryption or secret management integration","No validation of n8n connectivity at startup; only URL format is checked","No support for multiple n8n instances in a single server instance"],"requires":["N8N_HOST environment variable (e.g., http://localhost:5678/api)","N8N_API_KEY environment variable with valid n8n API key"],"input_types":["Environment variables (N8N_HOST, N8N_API_KEY)"],"output_types":["Validation status (success or error with details)"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_11","uri":"capability://code.generation.editing.typescript.type.definitions.and.runtime.type.checking","name":"typescript type definitions and runtime type checking","description":"Provides TypeScript type definitions for all MCP tools, resources, and n8n API responses, enabling type-safe development and IDE autocompletion. The implementation includes runtime type checking for incoming MCP requests and outgoing n8n API responses, catching type mismatches before they cause runtime errors. The server exports type definitions for use by client applications and extensions.","intents":["Enable type-safe development of MCP clients and extensions","Provide IDE autocompletion for MCP tool parameters","Catch type errors at compile time rather than runtime","Document expected types for API requests and responses"],"best_for":["TypeScript developers building MCP clients or extensions","Teams using IDEs with TypeScript support (VS Code, WebStorm)","Projects that require type safety and compile-time error checking"],"limitations":["Type definitions are static; no runtime type validation beyond basic checks","TypeScript compilation adds build step; no direct JavaScript execution","Type definitions must be manually updated when n8n API changes","Runtime type checking has performance overhead; no optimization for production"],"requires":["TypeScript 4.0+ for compilation","Node.js 14+ for runtime"],"input_types":["TypeScript source files with type annotations"],"output_types":["Compiled JavaScript with type information","Type definition files (.d.ts) for external use"],"categories":["code-generation-editing","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_2","uri":"capability://data.processing.analysis.execution.history.retrieval.with.filtering.and.pagination","name":"execution history retrieval with filtering and pagination","description":"Exposes list_executions and get_execution MCP tools that query n8n's execution history with optional filters (workflow ID, status, date range) and pagination support. The server translates MCP tool parameters into n8n API query strings, retrieves execution records with full details (execution ID, status, start/end time, error messages, output data), and returns paginated result sets. The get_execution tool retrieves detailed execution logs including node-by-node execution traces.","intents":["Find all executions of a specific workflow to audit automation behavior","Retrieve failed executions to diagnose workflow errors","Get execution logs and output data for debugging","Monitor execution performance (duration, success rate) over time","Paginate through large execution histories without loading all records"],"best_for":["Automation engineers debugging workflow failures","DevOps teams monitoring workflow health and performance","AI agents that analyze execution patterns to suggest workflow improvements","Compliance teams auditing workflow execution for regulatory requirements"],"limitations":["Pagination is limited to n8n's default page size (typically 25-100 records); no configurable batch size in MCP tool parameters","Execution logs are truncated after a certain size; full output data may not be available for large payloads","Filtering is limited to n8n's supported query parameters; no full-text search across execution logs or error messages","Historical data retention depends on n8n instance configuration; old executions may be automatically purged","Real-time execution monitoring is not supported; only completed executions are queryable"],"requires":["N8N_API_KEY with execution read permissions","Valid workflow ID (optional, for filtering by workflow)","n8n instance with execution history enabled"],"input_types":["Workflow ID (optional string UUID)","Execution status filter (optional: 'success', 'error', 'waiting')","Date range filters (optional: startDate, endDate ISO 8601)","Page number (optional integer, default 1)"],"output_types":["Paginated execution list with metadata (ID, status, duration, timestamp)","Detailed execution object with node-by-node traces and output data","Error messages and stack traces for failed executions"],"categories":["data-processing-analysis","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_3","uri":"capability://automation.workflow.execution.deletion.with.cascading.cleanup","name":"execution deletion with cascading cleanup","description":"Provides delete_execution MCP tool that removes execution records from n8n's history. The tool calls n8n's execution deletion endpoint, which cascades cleanup of associated logs, output data, and temporary files. The implementation returns confirmation of deletion and validates that the execution exists before attempting removal, preventing errors from deleting non-existent records.","intents":["Remove failed test executions from history to clean up logs","Delete sensitive execution data (PII, credentials) for compliance","Purge old execution records to free storage space","Clean up execution history before sharing workflow logs with external teams"],"best_for":["Compliance and security teams managing sensitive execution data","Automation engineers cleaning up test executions","Teams with storage constraints needing to purge old execution history"],"limitations":["Deletion is permanent and non-reversible; no soft-delete or recovery mechanism","Cascading cleanup may take time for large execution records; no async deletion with status tracking","Cannot selectively delete execution data (e.g., keep logs but delete output); all-or-nothing deletion","No bulk deletion API; must delete executions one at a time, making large-scale cleanup slow","Deletion does not affect workflow definitions or future executions; only removes historical records"],"requires":["N8N_API_KEY with execution deletion permissions","Valid execution ID (string UUID)","Confirmation that execution exists (optional pre-check)"],"input_types":["Execution ID (string UUID)"],"output_types":["Confirmation object with deleted execution ID and timestamp"],"categories":["automation-workflow","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_4","uri":"capability://memory.knowledge.http.resource.based.workflow.and.execution.context.retrieval","name":"http resource-based workflow and execution context retrieval","description":"Exposes HTTP resources (static and dynamic templates) that provide efficient context access to workflow definitions and execution details without requiring separate MCP tool calls. Static resources (/workflows, /execution-stats) return aggregated data (all workflows, execution statistics), while dynamic resource templates (/workflows/{id}, /executions/{id}) return detailed information for specific resources. The server implements resource handlers that fetch data from n8n API and format it as MCP resources, allowing clients to include workflow context directly in prompts without tool invocation overhead.","intents":["Include full workflow definition in AI assistant context for analysis and suggestions","Embed execution statistics in prompts for performance monitoring","Reference specific workflow or execution details in multi-turn conversations without re-fetching","Provide AI assistants with efficient read-only access to workflow metadata"],"best_for":["AI assistants that need workflow context for intelligent suggestions","Conversational agents that maintain workflow state across multiple turns","Teams building custom n8n dashboards or analytics on top of MCP"],"limitations":["Resources are read-only; no mutation through resource endpoints (use MCP tools for modifications)","Static resources (/workflows, /execution-stats) return all data without filtering; large instances may return megabytes of data","Dynamic resource templates require exact resource IDs; no wildcard or pattern matching","Resource caching is client-side; no server-side caching or ETags for efficient updates","Execution statistics are point-in-time snapshots; no time-series data or historical trends"],"requires":["N8N_API_KEY with read permissions","Valid resource IDs (workflow ID, execution ID) for dynamic templates","MCP client that supports resource retrieval (Claude Desktop, custom MCP clients)"],"input_types":["Resource URI (static: /workflows, /execution-stats; dynamic: /workflows/{id}, /executions/{id})"],"output_types":["JSON workflow definition with full node graph and settings","Execution statistics object with success rate, average duration, error counts","Detailed execution object with traces and output data"],"categories":["memory-knowledge","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_5","uri":"capability://tool.use.integration.n8n.api.authentication.and.connection.pooling","name":"n8n api authentication and connection pooling","description":"Implements secure authentication to n8n instances using API keys passed via N8N_API_KEY environment variable, with automatic header injection (X-N8N-API-KEY) on all HTTP requests. The server maintains a persistent connection to the n8n API endpoint (N8N_HOST) and reuses HTTP connections through Node.js's built-in connection pooling, reducing latency for repeated requests. The implementation handles authentication errors (401, 403) and returns structured error messages to MCP clients.","intents":["Securely authenticate to n8n without exposing credentials in code or logs","Maintain persistent connections to reduce latency for rapid workflow operations","Handle authentication failures gracefully with informative error messages","Support multiple n8n instances through environment variable configuration"],"best_for":["Teams deploying n8n-workflow-builder in production environments","Automation engineers managing multiple n8n instances","Security-conscious teams that need credential isolation"],"limitations":["API key is stored in plaintext in environment variables; no encryption at rest (requires external secret management)","No token refresh or expiration handling; API key must be manually rotated","Connection pooling is per-process; no cross-process connection sharing in multi-instance deployments","No rate limiting or backoff logic; rapid requests may hit n8n API rate limits","Authentication errors are not retried; failed requests fail immediately without exponential backoff"],"requires":["N8N_API_KEY environment variable with valid n8n API key","N8N_HOST environment variable pointing to n8n API (e.g., http://localhost:5678/api)","Network access to n8n instance (firewall rules, VPN if remote)"],"input_types":["Environment variables (N8N_API_KEY, N8N_HOST)"],"output_types":["Authenticated HTTP requests with X-N8N-API-KEY header","Error responses with 401/403 status codes and error messages"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_6","uri":"capability://tool.use.integration.mcp.tool.schema.definition.and.parameter.validation","name":"mcp tool schema definition and parameter validation","description":"Defines MCP tool schemas for all workflow and execution management operations, specifying required parameters, types, descriptions, and constraints. The server uses these schemas to validate incoming MCP tool requests before forwarding to n8n API, rejecting invalid parameters with structured error messages. The implementation follows MCP specification for tool definition, enabling AI assistants to discover available tools and their parameters through schema introspection.","intents":["Enable AI assistants to discover available workflow management operations","Validate tool parameters before sending requests to n8n to prevent API errors","Provide clear parameter descriptions to guide AI assistants in tool usage","Enforce type safety and required parameter constraints"],"best_for":["AI assistant developers building n8n automation agents","Teams integrating n8n-workflow-builder with multiple MCP clients","Developers extending the MCP server with custom tools"],"limitations":["Schema validation is basic type checking; no complex validation rules (e.g., regex patterns, enum constraints)","Parameter descriptions are static; no dynamic help based on n8n instance state","Schema changes require server restart; no hot-reload of tool definitions","No versioning of tool schemas; breaking changes affect all clients simultaneously"],"requires":["MCP SDK for Node.js (included in package.json)","Understanding of MCP tool schema specification"],"input_types":["MCP tool request with parameters matching schema"],"output_types":["Validation error with parameter details if invalid","Successful tool invocation if valid"],"categories":["tool-use-integration","safety-moderation"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_7","uri":"capability://safety.moderation.error.handling.and.structured.error.responses","name":"error handling and structured error responses","description":"Implements comprehensive error handling across all MCP tool and resource handlers, catching n8n API errors (4xx, 5xx responses) and translating them into structured MCP error responses. The server categorizes errors (authentication, validation, not found, server error) and returns descriptive error messages with relevant context (failed parameter, API status code, n8n error details). The implementation prevents sensitive information (API keys, internal paths) from leaking in error messages.","intents":["Provide clear error messages when workflow operations fail","Help AI assistants understand why a request failed and suggest corrections","Prevent sensitive information from leaking in error responses","Enable debugging of workflow management issues"],"best_for":["Teams deploying n8n-workflow-builder in production","Automation engineers debugging workflow management failures","Security teams ensuring no credential leakage in error messages"],"limitations":["Error messages are limited to n8n API responses; no custom error codes or categories beyond HTTP status","Stack traces are not exposed to clients; debugging requires server logs","No error recovery or retry logic; failed requests fail immediately","Error context is limited to the immediate request; no correlation IDs for tracing across multiple requests"],"requires":["n8n API returning standard HTTP error responses"],"input_types":["n8n API error responses (4xx, 5xx)"],"output_types":["Structured MCP error response with error code, message, and context"],"categories":["safety-moderation","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_8","uri":"capability://tool.use.integration.stdio.based.mcp.protocol.communication","name":"stdio-based mcp protocol communication","description":"Implements the Model Context Protocol (MCP) server using stdio-based communication, where the server reads JSON-RPC requests from stdin and writes responses to stdout. The implementation uses the MCP SDK for Node.js to handle protocol serialization, message framing, and bidirectional communication with MCP clients (Claude Desktop, ChatGPT, custom clients). The server maintains a persistent connection to the client and processes tool requests and resource queries asynchronously.","intents":["Enable Claude Desktop and ChatGPT to invoke n8n workflow operations","Provide a standardized interface for custom MCP clients to manage n8n workflows","Support bidirectional communication between AI assistants and n8n instances","Enable integration with other MCP-compatible tools and services"],"best_for":["AI assistant developers building n8n automation agents","Teams integrating n8n with Claude Desktop or ChatGPT","Organizations building custom MCP ecosystems"],"limitations":["Stdio communication is single-threaded; concurrent requests are queued and processed sequentially","No built-in load balancing or horizontal scaling; single server instance handles all requests","Protocol overhead adds latency compared to direct HTTP API calls","Client connection is lost if server crashes; no automatic reconnection or failover","Debugging stdio-based communication requires log inspection; no built-in protocol tracing"],"requires":["MCP SDK for Node.js (included in package.json)","MCP-compatible client (Claude Desktop, ChatGPT, custom client)","Node.js 14+ for running the server"],"input_types":["JSON-RPC requests from MCP client (tool calls, resource queries)"],"output_types":["JSON-RPC responses with tool results or resource data"],"categories":["tool-use-integration","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-makafeli--n8n-workflow-builder__cap_9","uri":"capability://data.processing.analysis.workflow.definition.serialization.and.deserialization","name":"workflow definition serialization and deserialization","description":"Handles conversion between n8n's internal workflow graph format (nodes array, connections array, settings object) and JSON representations suitable for transmission via MCP. The implementation preserves workflow structure (node IDs, connection references, parameter bindings) during serialization and validates that deserialized workflows conform to n8n's schema before sending to API. The server supports both full workflow definitions and partial updates.","intents":["Convert n8n workflow graphs to JSON for transmission via MCP","Validate workflow definitions before sending to n8n API","Support partial workflow updates without losing existing node configuration","Enable AI assistants to understand and modify workflow structure"],"best_for":["AI assistants that need to understand and modify workflow graphs","Teams building workflow templates or migration tools","Automation engineers debugging workflow structure issues"],"limitations":["Serialization does not preserve n8n's internal metadata (execution history, version info); only workflow definition is included","Deserialization does not validate node parameter types; invalid parameters are caught by n8n API","Large workflows (100+ nodes) may exceed MCP message size limits; no streaming or chunking support","Circular references in workflow definitions are not detected; may cause infinite loops during serialization","No schema versioning; workflow definitions from different n8n versions may be incompatible"],"requires":["Valid n8n workflow definition with nodes and connections arrays"],"input_types":["n8n workflow object (nodes, connections, settings)","JSON workflow definition from API"],"output_types":["Serialized JSON workflow definition","Deserialized workflow object for API submission"],"categories":["data-processing-analysis","automation-workflow"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":45,"verified":false,"data_access_risk":"high","permissions":["Node.js 14+","n8n instance with accessible HTTP API (self-hosted or cloud)","Valid N8N_API_KEY environment variable with workflow management permissions","N8N_HOST environment variable pointing to n8n API endpoint (e.g., http://localhost:5678/api)","N8N_API_KEY with workflow activation permissions","Valid workflow ID (UUID format)","n8n instance running and accessible","N8N_HOST environment variable (e.g., http://localhost:5678/api)","N8N_API_KEY environment variable with valid n8n API key","TypeScript 4.0+ for compilation"],"failure_modes":["No built-in workflow validation — relies on n8n API to reject invalid schemas; malformed node definitions will fail at n8n side","Workflow complexity is limited by n8n's node graph structure; deeply nested conditional logic requires manual node configuration","No transaction support — partial workflow creation failures leave orphaned nodes; requires manual cleanup","Update operations are full-document replacements; no field-level patching, so concurrent edits risk data loss","No cascading activation — dependent workflows must be activated separately; no dependency graph traversal","State changes are immediate with no rollback capability; no transaction log for audit trails","Activation status is binary; no scheduling for future activation/deactivation (e.g., activate at 9 AM)","No validation that workflow is in a valid state before activation; can activate broken workflows that will fail at runtime","Configuration is static; changes require server restart","No support for configuration files or dynamic configuration sources","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.38409920167080774,"quality":0.49,"ecosystem":0.7000000000000001,"match_graph":0.25,"freshness":0.6,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.15,"match_graph":0.23,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:22.062Z","last_scraped_at":"2026-05-03T13:59:57.743Z","last_commit":"2026-03-19T11:11:52Z"},"community":{"stars":516,"forks":127,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=makafeli--n8n-workflow-builder","compare_url":"https://unfragile.ai/compare?artifact=makafeli--n8n-workflow-builder"}},"signature":"UebJ61XpZff5GrmkuWd/QQn2z+iVaJXXTnK0/0zLYNPEX3zV728Z3/vmEhzZtO809Jr76x8eVDgJPsmj2gwlBw==","signedAt":"2026-06-23T07:08:39.200Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/makafeli--n8n-workflow-builder","artifact":"https://unfragile.ai/makafeli--n8n-workflow-builder","verify":"https://unfragile.ai/api/v1/verify?slug=makafeli--n8n-workflow-builder","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}