Supabase ranks higher at 42/100 vs @superblocksteam/mcp-server at 26/100. Capability-level comparison backed by match graph evidence from real search data.
| Feature | @superblocksteam/mcp-server | Supabase |
|---|---|---|
| Type | MCP Server | MCP Server |
| UnfragileRank | 26/100 | 42/100 |
| Adoption | 0 | 0 |
| Quality | 0 |
| 0 |
| Ecosystem | 0 | 0 |
| Match Graph | 0 | 0 |
| Pricing | Free | Free |
| Capabilities | 6 decomposed | 9 decomposed |
| Times Matched | 0 | 0 |
Implements the Model Context Protocol (MCP) server specification, handling bidirectional JSON-RPC communication between MCP clients (like Claude Desktop, IDEs, or LLM applications) and the Superblocks backend. Manages server startup, connection negotiation, capability advertisement, and graceful shutdown with proper resource cleanup and error handling.
Unique: Superblocks-specific MCP server implementation that bridges Superblocks' workflow execution engine with the MCP ecosystem, enabling LLMs to invoke Superblocks workflows as first-class tools rather than requiring custom API wrappers
vs alternatives: Provides native MCP integration for Superblocks workflows, eliminating the need for custom tool-wrapping code that would be required with generic REST API clients
Dynamically registers Superblocks workflows as callable tools within the MCP server, advertising their schemas (parameters, return types, descriptions) to connected MCP clients. Uses introspection of Superblocks workflow definitions to generate MCP tool schemas that clients can discover and invoke, with support for parameter validation and type mapping.
Unique: Automatically introspects Superblocks workflow definitions to generate MCP-compliant tool schemas, eliminating manual tool registration code and keeping schemas synchronized with workflow changes
vs alternatives: Avoids manual tool schema maintenance required by generic MCP servers — schema stays in sync with Superblocks workflow definitions automatically
Executes Superblocks workflows in response to MCP tool invocation requests from clients, translating MCP tool call parameters into Superblocks API calls, managing execution state, and returning results back through the MCP protocol. Handles parameter marshaling, error propagation, and timeout management for long-running workflows.
Unique: Bridges MCP tool call semantics with Superblocks' workflow execution engine, handling parameter translation, execution state management, and result formatting transparently so LLMs can invoke Superblocks workflows as if they were native functions
vs alternatives: Provides direct workflow execution through MCP rather than requiring LLMs to construct REST API calls manually, reducing latency and improving reliability of tool invocation
Manages authentication between the MCP server and Superblocks backend, handling API key storage, token refresh, and credential validation. Supports multiple authentication methods (API keys, OAuth tokens) and ensures credentials are securely passed to Superblocks API calls without exposing them to MCP clients.
Unique: Implements credential isolation between MCP protocol layer and Superblocks API layer, ensuring MCP clients never receive raw credentials while maintaining authenticated access to Superblocks workflows
vs alternatives: Provides server-side credential management that prevents MCP clients from accessing Superblocks credentials, unlike naive implementations that might expose credentials in tool responses
Exposes Superblocks resources (data sources, API connections, variables) and prompt templates as MCP resources that clients can query and reference. Implements MCP resource protocol to advertise available resources, provide resource metadata, and return resource content when requested by clients.
Unique: Exposes Superblocks resource management system through MCP resource protocol, allowing LLM clients to discover and reference centrally-managed resources without duplicating configuration across tools
vs alternatives: Provides centralized resource discovery through MCP rather than requiring each client to maintain separate resource configurations, improving consistency and reducing configuration drift
Standardizes error responses and execution results into MCP-compatible formats, translating Superblocks API errors into MCP error objects with appropriate error codes and messages. Formats workflow execution results (success, failure, timeout) consistently so MCP clients can reliably parse and handle outcomes.
Unique: Implements bidirectional error translation between Superblocks API semantics and MCP protocol semantics, ensuring errors are meaningful to both LLM clients and human operators
vs alternatives: Provides structured error handling that allows LLM agents to programmatically distinguish failure modes and implement recovery strategies, versus generic error passthrough that treats all failures identically
Executes SQL queries against Supabase PostgreSQL instances through the Model Context Protocol, translating natural language or structured query requests into parameterized SQL statements. Uses MCP's tool-calling interface to expose database operations as callable functions with schema validation, enabling LLM agents to perform CRUD operations, joins, and aggregations with automatic connection pooling and credential management through Supabase client SDK.
Unique: Exposes Supabase PostgreSQL as MCP tools with automatic credential injection from Supabase client SDK, eliminating manual connection string management and enabling seamless LLM-to-database queries within Claude or compatible agents
vs alternatives: Tighter integration than generic SQL MCP servers because it leverages Supabase's built-in authentication and connection pooling rather than requiring separate database credential configuration
Exposes Supabase Auth session state and user metadata through MCP tools, allowing agents to inspect current authentication context, retrieve user profiles, and trigger auth-related operations. Integrates with Supabase's JWT-based auth system to validate sessions and access user claims without re-authenticating, using the Supabase client's built-in session management.
Unique: Integrates Supabase's JWT-based auth system directly into MCP tool interface, allowing agents to inspect and act on auth state without managing separate credential stores or re-authentication flows
vs alternatives: More seamless than generic auth MCP servers because it leverages Supabase's built-in session management and avoids redundant credential passing between agent and auth system
Invokes Supabase Edge Functions (serverless TypeScript/JavaScript functions) through MCP tools, passing parameters and receiving results with optional streaming support. Uses Supabase's edge function HTTP API to trigger functions with automatic authentication headers and response parsing, enabling agents to execute custom business logic without embedding it in the agent itself.
Supabase scores higher at 42/100 vs @superblocksteam/mcp-server at 26/100. @superblocksteam/mcp-server leads on adoption, while Supabase is stronger on quality.
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Unique: Exposes Supabase Edge Functions as MCP tools with automatic authentication and response parsing, allowing agents to invoke custom serverless logic without managing HTTP clients or credential injection
vs alternatives: More integrated than generic HTTP MCP tools because it handles Supabase-specific authentication, error handling, and response formatting automatically
Subscribes to real-time changes on Supabase tables through MCP's event streaming interface, using Supabase's PostgreSQL LISTEN/NOTIFY mechanism to push INSERT, UPDATE, and DELETE events to agents. Maintains persistent WebSocket connections and filters events by table and row-level policies, enabling agents to react to database changes without polling.
Unique: Bridges Supabase's PostgreSQL LISTEN/NOTIFY real-time system with MCP's tool interface, enabling agents to subscribe to database changes without managing WebSocket connections or event serialization
vs alternatives: More efficient than polling-based approaches because it uses Supabase's native real-time infrastructure rather than repeated database queries
Manages files in Supabase Storage buckets through MCP tools, supporting upload, download, list, and delete operations with automatic authentication and path-based access control. Uses Supabase's S3-compatible storage API with built-in support for public/private buckets and signed URLs for temporary access, enabling agents to handle file I/O without managing cloud storage credentials.
Unique: Exposes Supabase Storage's S3-compatible API as MCP tools with automatic authentication and signed URL generation, eliminating the need for agents to manage cloud storage credentials or generate temporary access tokens
vs alternatives: More integrated than generic S3 MCP tools because it leverages Supabase's built-in bucket policies and authentication rather than requiring separate AWS credentials
Performs semantic similarity searches on vector embeddings stored in Supabase PostgreSQL using pgvector extension, translating natural language queries into embedding vectors and executing cosine/L2 distance searches. Integrates with embedding providers (OpenAI, Cohere) or uses pre-computed embeddings, enabling agents to retrieve semantically similar documents or records without full-text search limitations.
Unique: Integrates pgvector directly into MCP tools with automatic embedding generation and distance calculation, enabling agents to perform semantic search without managing separate vector database infrastructure
vs alternatives: More efficient than external vector databases (Pinecone, Weaviate) for Supabase users because it colocates embeddings with relational data, reducing network latency and simplifying data synchronization
Exposes Supabase database schema information through MCP tools, allowing agents to discover table structures, column types, constraints, and relationships without manual schema documentation. Queries PostgreSQL information_schema and Supabase metadata tables to dynamically generate schema descriptions, enabling agents to construct valid queries and understand data relationships.
Unique: Queries Supabase's PostgreSQL information_schema directly through MCP tools, enabling agents to dynamically discover and adapt to database schemas without pre-configured schema definitions
vs alternatives: More flexible than static schema definitions because it reflects live database state, including recent migrations or schema changes
Enforces Supabase Row-Level Security policies within agent queries, ensuring that agents can only access rows permitted by RLS rules defined in the database. Evaluates policies based on authenticated user context (JWT claims, user ID) and applies WHERE clause filters automatically, preventing unauthorized data access at the database layer rather than application layer.
Unique: Delegates authorization enforcement to PostgreSQL RLS policies rather than implementing authorization in agent code, ensuring that data access rules are centralized and cannot be bypassed by agent logic
vs alternatives: More secure than application-level authorization because RLS is enforced at the database layer, preventing accidental data leaks even if agent code has bugs
+1 more capabilities