Subgraph Registry

Agent-friendly discovery of 15,500+ classified subgraphs on The Graph Network. Search by domain, network, protocol type, or natural language goal — get reliability-scored results with query URLs.

Tools

• search_subgraphs — Filter by domain (defi, nfts, dao, gaming), network (ethereum, arbitrum, base), protocol type (dex, lending, bridge), entity type, or keyword
• recommend_subgraph — Natural language goal like "find DEX trades on Arbitrum" returns the best matching subgraphs
• get_subgraph_detail — Full classification, entities, reliability score, and query instructions for a specific subgraph
• list_registry_stats — Registry overview with available domains, networks, and protocol types

Requirements

• Runtime: Node.js >= 18 (runs via npx)
• Environment variables: None required. The registry is pre-built and bundled — no API key needed for read-only use.

Install

npx subgraph-registry-mcp

Network & Data Behavior

• On first run, the server downloads a pre-built registry.db (SQLite) from the GitHub repository (~5 MB). This is cached locally and reused on subsequent runs.
• All tool queries run against this local database — no external API calls are made at query time.
• The SSE transport (--http / --http-only) starts a local HTTP server on port 3848 (configurable via MCP_HTTP_PORT env var).

Use Cases

• Discover the right subgraph before querying The Graph
• Find high-reliability DeFi, NFT, DAO, or governance subgraphs by chain
• Get query URLs and entity schemas without manual exploration
• Compare subgraphs by reliability score (query fees, curation signal, indexer stake)