The Graph
The Graph is a decentralized blockchain data indexing protocol. It exposes Subgraphs (GraphQL APIs over indexed on-chain data), Substreams (parallel streaming dataflows), the Token API (REST/MCP for token data), and supports 80+ chains. Self-hosted Graph Node and Firehose are open-source.
The Graph publishes 1 API on the APIs.io network: Subgraphs API. Tagged areas include Web3, Indexing, GraphQL, Subgraphs, and Multi-Chain.
The Graph’s developer surface includes authentication, engineering blog, and 9 more developer resources.
Kin Score
APIs 6
Individual APIs this provider publishes, each with its own machine-readable definition.
The Graph Subgraphs (GraphQL)
Per-subgraph GraphQL endpoints served by the decentralized network of Indexers. Each subgraph defines its own schema; queries are billed in GRT or via a hosted gateway in USD.
The Graph Token API
REST API for cross-chain token data (balances, holders, prices, transfers, metadata) with built-in MCP server for AI agents.
The Graph Substreams
gRPC streaming protocol for parallelized blockchain dataflows backed by Firehose. Substreams power high-throughput indexing pipelines.
Graph Node Admin JSON-RPC (self-hosted)
JSON-RPC admin interface to a self-hosted Graph Node for deploying, listing, and managing subgraphs. Public hosted-service is deprecated; this surface applies to self-managed in...
Firehose
Open-source flat-file extraction layer that powers Substreams. Provides chain-specific gRPC streams of blocks and transactions.
The Graph Subgraphs API
The Subgraphs API from The Graph — 2 operation(s) for subgraphs.
Open Collections 3
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
API Collection
OPEN COLLECTIONThe Graph Gateway ( GraphQL) Subgraphs API
OPEN COLLECTIONThe Graph Gateway (Subgraphs GraphQL)
OPEN COLLECTIONGraphQL 1
GraphQL schemas published by this provider.
The Graph GraphQL API
Per-subgraph GraphQL endpoints served by the decentralized network of Indexers. Each subgraph defines its own schema; queries are billed in GRT or via a hosted gateway in USD.
GRAPHQLPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
The Graph Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
The Graph Finops
FINOPSSecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Agent Surfaces 2
MCP servers, agent skills, and machine-readable catalogs
Access & Security 3
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Source (apis.yml)
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for providers
9 MCP tools reach this
find_providersBrowse and filter every provider in the catalog.get_provider_artifactsEvery artifact this provider publishes, grouped by type.get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.get_provider_toolsEvery MCP tool they ship, with the operation each wraps.get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.get_provider_ratingPRO — composite, band, trend and facet scores.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
curl "https://apis.io/api/v1/providers/the-graph"
curl "https://apis.io/api/v1/providers?limit=25"
curl "https://apis.io/api/v1/providers/the-graph/operations?limit=25"
curl "https://apis.io/api/v1/providers/the-graph/evidence"
Discovery needs no key. Ratings and market analysis are Pro.