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| Ecosystem | 0 | 0 |
| Match Graph | 0 | 0 |
| Pricing | Free | Free |
| Capabilities | 13 decomposed | 9 decomposed |
| Times Matched | 0 | 0 |
Orchestrates a three-party authentication handshake between an Agent, Gateway, and Guardian using MCP (Model Context Protocol) tool calls. The SDK manages the state machine for credential exchange, signature verification, and mutual authentication across distributed parties without centralizing trust. Implements a request-response pattern where the Agent initiates calls through the Gateway, which delegates verification to the Guardian, then returns authenticated tokens back through the MCP channel.
Unique: Implements a trilateral handshake pattern specifically designed for MCP tool calls, where authentication state is managed across three independent parties without a central authority. Uses MCP's native tool registry to define authentication endpoints, avoiding custom protocol definitions.
vs alternatives: Differs from OAuth2/OIDC by eliminating the central authorization server and distributing trust across Gateway and Guardian; differs from mutual TLS by operating at the application layer within MCP, allowing agent-level granularity.
Routes MCP tool calls from agents through the Gateway with automatic injection of authentication context derived from the trilateral handshake. The SDK wraps the native MCP tool invocation mechanism, intercepts calls, appends signed auth tokens to the request metadata, and validates response signatures before returning results to the agent. Implements a middleware pattern that is transparent to the agent's tool-calling logic.
Unique: Implements authentication as a transparent middleware layer within the MCP tool-calling pipeline, using MCP's native metadata mechanism rather than custom headers. Signature verification happens on response, not just request, ensuring bidirectional trust.
vs alternatives: More lightweight than API gateway solutions like Kong because it operates at the SDK level without requiring a separate infrastructure component; more flexible than hardcoded auth headers because it derives credentials from the active session state.
Records detailed audit logs of all authentication events (credential submission, Guardian verification, token generation, session renewal, expiration) with timestamps, actor information, and outcomes. The SDK provides structured logging hooks that emit events at each stage of the trilateral handshake, allowing downstream systems to capture and analyze authentication activity. Implements a pluggable logger interface that supports multiple backends (console, file, remote syslog, cloud logging services).
Unique: Provides pluggable audit logging at each stage of the trilateral handshake with structured event format, allowing organizations to integrate authentication events into their existing logging and monitoring infrastructure. Includes built-in redaction of sensitive data (credentials, tokens).
vs alternatives: More comprehensive than application-level logging because it captures authentication events at the SDK level; more flexible than hardcoded logging because it supports multiple backends through a pluggable interface.
Enables a single agent to authenticate using multiple credentials (e.g., primary API key + backup certificate) and automatically fall back to alternative credentials if the primary credential fails. The SDK maintains a credential chain, attempts authentication with each credential in order, and stops at the first successful authentication. Implements a credential fallback pattern that improves resilience for agents with multiple credential sources.
Unique: Supports credential chains with automatic fallback, allowing agents to authenticate with alternative credentials if the primary credential fails. Tracks which credential succeeded and logs fallback events for audit purposes.
vs alternatives: More resilient than single-credential authentication because it provides fallback paths; more flexible than manual credential switching because fallback is automatic and transparent to the agent.
Enforces fine-grained authorization based on scopes embedded in the authenticated session token. The SDK extracts scopes from the Guardian's verification proof, compares requested tool scopes against authorized scopes, and rejects tool calls that exceed the agent's authorization level. Implements a scope-matching pattern that supports both exact scope matching and wildcard scope patterns (e.g., 'tools:read:*' matches 'tools:read:users' and 'tools:read:data').
Unique: Enforces authorization at the SDK level based on scopes embedded in the Guardian's verification proof, preventing unauthorized tool calls before they reach the Gateway. Supports wildcard scope patterns for flexible permission grouping.
vs alternatives: More granular than binary allow/deny because it supports scope-based permissions; more efficient than server-side authorization checks because it enforces locally without additional round-trips.
Manages the first leg of the trilateral handshake where the Agent submits its credentials to the Gateway via an MCP tool call. The SDK encapsulates the agent's identity (API key, certificate, or token) in a standardized credential envelope, sends it through the Gateway's MCP endpoint, and receives a challenge or intermediate token. Implements credential normalization to support multiple credential types (symmetric keys, asymmetric certificates, OIDC tokens) without requiring the agent to know the Gateway's preferred format.
Unique: Normalizes heterogeneous credential types into a single envelope format before transmission, allowing agents with different credential sources to authenticate without format-specific logic. Uses MCP tool metadata to discover which credential types the Gateway accepts.
vs alternatives: More flexible than fixed-format credential submission because it adapts to the Gateway's capabilities; simpler than building a full credential management system because it focuses only on the exchange phase.
Handles the second leg of the trilateral handshake by forwarding the Gateway's challenge to the Guardian for cryptographic verification. The SDK constructs a verification request containing the agent's credentials, the Gateway's challenge, and metadata about the authentication context, sends it through the Guardian's MCP endpoint, and receives a signed verification proof. Implements a delegation pattern where the Guardian acts as a trusted third party that validates the agent's legitimacy without the Gateway needing to store or verify credentials directly.
Unique: Delegates verification to an independent Guardian service via MCP, creating a cryptographic proof that can be audited and replayed. The Guardian never communicates directly with the agent — all communication flows through the Gateway, maintaining network isolation.
vs alternatives: More trustworthy than Gateway-only verification because it introduces an independent auditor; more scalable than centralized verification because Guardian can be replicated and load-balanced independently of Gateway instances.
Synthesizes a final authenticated session token after both the Gateway and Guardian have validated the agent. The SDK combines the Gateway's intermediate token and the Guardian's verification proof into a single session token that encodes the agent's identity, verified scopes, and expiration time. Implements a token composition pattern where the final token is cryptographically bound to both the Gateway and Guardian's signatures, preventing token forgery or scope escalation.
Unique: Composes a single token from multiple cryptographic proofs (Gateway + Guardian), creating a non-repudiable record of which parties verified the authentication. Token includes verified scopes derived from Guardian's policies, not agent-requested scopes.
vs alternatives: More trustworthy than single-signature tokens because it requires both Gateway and Guardian to have signed; more auditable than opaque tokens because it embeds verification metadata that can be inspected without contacting the issuer.
+5 more capabilities
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 @agentic-name-service/sdk at 28/100.
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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