Hasura MCP Server: Give AI Agents Access to Your Instant GraphQL API

Why Give AI Access to Hasura?

Hasura gives you an instant GraphQL API over your Postgres (or other) databases with built-in authorization, event triggers, and remote schemas. When building features, you switch to the Hasura Console to check table relationships, test GraphQL queries in GraphiQL, verify permission rules, and inspect event trigger configurations. Each context switch costs focus during development.

An MCP server turns your Hasura Console into a set of structured tools that AI coding assistants (Claude, Cursor, Windsurf) can call directly. Instead of switching to GraphiQL to test a query or checking permission rules in the Console, your AI reads them in real-time while you code.

What AI Agents Can Do with Hasura Access

With a DataFaucet MCP server pointed at your Hasura Console, AI tools can:

• Run GraphQL queries — execute queries and mutations against your API, inspect response shapes
• Inspect table relationships — see object and array relationships, foreign keys, and remote schemas
• Check permissions — verify role-based access rules on tables and columns
• Browse metadata — list tracked tables, event triggers, actions, and scheduled triggers
• Test subscriptions — verify real-time subscription configurations and filter patterns

Setting Up Hasura as an MCP Server with DataFaucet

1. Open DataFaucet and start a capture session
2. Navigate to your Hasura Console (Cloud or self-hosted)
3. Interact with tables, relationships, and GraphiQL — DataFaucet captures the API patterns
4. Deploy and connect to your AI coding tool

Related: PostgreSQL MCP Server for direct Postgres access, Directus MCP Server for Directus, Best MCP Servers for the full directory.

Example Use Cases

Building typed queries: Ask Claude "What fields and relationships does the orders table have?" and get the full GraphQL schema without opening GraphiQL.

Debugging authorization: Ask "What permissions does the user role have on the products table?" instead of clicking through the Console permissions tab.

Frontend development: Ask "Run a query for the last 10 orders with their line items and customer name" and get live data while writing components.

Why DataFaucet for Hasura

Hasura auto-generates powerful GraphQL APIs, but navigating table metadata, permission matrices, and relationship configs still requires the Console. DataFaucet bridges that gap by giving AI tools direct access to your Hasura instance through MCP, without sharing admin secrets or exposing your database connection string.

Works with Hasura Cloud, self-hosted Docker instances, or any deployment that exposes the Console.