| Ecosystem | 1 | 0 |
| Match Graph | 0 | 0 |
| Pricing | Free | Free |
| Capabilities | 5 decomposed | 9 decomposed |
| Times Matched | 0 | 0 |
Intercepts and logs all MCP protocol messages (requests, responses, errors) flowing through the gateway without blocking or modifying the actual execution path. Implements a transparent proxy pattern that sits between the MCP client and server, capturing full message payloads including tool calls, parameters, and responses for audit and debugging purposes without introducing latency into the critical path.
Unique: Implements shadow-mode logging as a transparent proxy wrapper rather than requiring server-side instrumentation, allowing legacy MCP servers to be audited without code modification. Uses process-level interception of MCP protocol messages rather than application-level hooks.
vs alternatives: Requires zero changes to existing MCP server code unlike server-side logging SDKs, and captures the complete protocol layer unlike application-level logging which may miss framework-level details
Enforces granular authorization rules on a per-tool basis before MCP tool calls are executed, allowing administrators to define which tools are callable, by whom, and under what conditions. Implements a policy evaluation layer that intercepts tool invocation requests, matches them against a policy ruleset, and either permits or denies execution based on tool name, caller identity, or other contextual attributes.
Unique: Provides tool-level granularity for access control at the MCP protocol layer rather than requiring each tool to implement its own authorization logic. Centralizes policy enforcement in the gateway rather than distributing it across multiple tool implementations.
vs alternatives: Simpler than implementing authorization in each individual tool, and works with any MCP server without requiring server-side code changes, unlike application-level access control frameworks
Generates cryptographically signed receipts for completed tool invocations using Ed25519 digital signatures, creating a tamper-proof audit trail that proves a specific tool was called with specific parameters at a specific time. Each receipt contains the tool invocation details and is signed with a private key, allowing verification that the receipt has not been modified and was issued by the authorized gateway.
Unique: Uses Ed25519 digital signatures for receipt generation rather than HMAC or other symmetric approaches, providing asymmetric verification where the public key can be distributed without compromising the signing capability. Receipts are cryptographically bound to specific tool invocations at the MCP protocol layer.
vs alternatives: Stronger than HMAC-based receipts because verification doesn't require access to the signing key, enabling third-party verification. More efficient than RSA signatures while providing equivalent security guarantees for audit purposes
Acts as a transparent wrapper around MCP server processes, intercepting the MCP protocol communication between client and server without requiring modifications to either endpoint. Implements a process-level proxy that launches the target MCP server as a child process and mediates all stdin/stdout communication, allowing policies and logging to be applied uniformly across any MCP server implementation.
Unique: Implements gateway functionality at the process level using stdin/stdout interception rather than requiring MCP servers to be rewritten as libraries or plugins. Allows any executable MCP server to be wrapped without code changes, working with servers written in any language.
vs alternatives: More flexible than library-based approaches because it works with any MCP server regardless of implementation language or architecture. Simpler than network-level proxies because it operates at the process boundary where MCP protocol messages are already serialized
Provides mechanisms to verify the authenticity and integrity of Ed25519-signed receipts generated by the gateway, allowing external systems or auditors to confirm that a receipt was legitimately issued and has not been tampered with. Verification uses the public key corresponding to the gateway's signing key to validate the signature and confirm the receipt contents.
Unique: Provides asymmetric verification where the public key can be freely distributed without compromising security, enabling third-party auditors to verify receipts without access to the gateway's private key. Verification is decoupled from receipt generation, allowing offline verification.
vs alternatives: More scalable than symmetric verification (HMAC) because the public key can be shared with unlimited third parties. More transparent than centralized verification services because verification can be performed locally without contacting the gateway
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 protect-mcp at 26/100.
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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