Envio GraphQL API
The Envio HyperIndex GraphQL API exposes indexed smart contract events and blockchain state from any EVM-compatible chain. Each HyperIndex deployment auto-generates a GraphQL API based on the user-defined `schema.graphql` entities, backed by a Hasura engine. The API supports queries, subscriptions (via WebSockets), filtering, sorting, and pagination over indexed on-chain data. Built-in system types provide indexing progress and metadata alongside user-defined entity types.
Overview
Envio GraphQL API is a GraphQL API specification published by Envio on the APIs.io network.
The Envio HyperIndex GraphQL API exposes indexed smart contract events and blockchain state from any EVM-compatible chain. Each HyperIndex deployment auto-generates a GraphQL API based on the user-defined schema.graphql entities, backed by a Hasura engine. The API supports queries, subscriptions (via WebSockets), filtering, sorting, and pagination over indexed on-chain data. Built-in system types provide indexing progress and metadata alongside user-defined entity types.
The GraphQL endpoint is available at https://indexer.hyperindex.xyz/{deployment-id}/graphql. documentation is published at https://docs.envio.dev/docs/HyperIndex/overview.
The specification includes 8 reference links.
Tagged areas include Blockchain, Indexer, Web3, EVM, and Smart Contracts.
Endpoint
References
- Documentation https://docs.envio.dev/docs/HyperIndex/overview
- GettingStarted https://docs.envio.dev/docs/HyperIndex/schema.md
- Schema https://docs.envio.dev/docs/HyperIndex/schema.md
- Authentication https://docs.envio.dev/docs/HyperSync/api-tokens
- MetadataQuery https://docs.envio.dev/docs/HyperIndex/metadata-query.md
- QueryConversion https://docs.envio.dev/docs/HyperIndex/query-conversion.md
- WebSockets https://docs.envio.dev/docs/HyperIndex/websockets.md
- HasuraConsole https://docs.envio.dev/docs/HyperIndex/navigating-hasura.md
Work with this as data
Every GraphQL schema 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 graphql
4 MCP tools reach this
find_graphqlBrowse and filter every GraphQL schema in the catalog.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/graphql/envio-graphql"curl "https://apis.io/api/v1/graphql?limit=25"Discovery needs no key. Ratings and market analysis are Pro.