Hasura GraphQL Engine
Instant GraphQL and REST APIs over databases (Postgres, MySQL, SQL Server, MongoDB) with role-based permissions, realtime subscriptions, and event triggers.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Row-level security enforced via Hasura permissions rules. Admin secret must be rotated and kept server-side. JWT with role claims is the recommended pattern.
⚡ Reliability
Best When
You have an existing Postgres database and want instant GraphQL API with auth and realtime subscriptions without building boilerplate CRUD code.
Avoid When
Your data access patterns are simple enough for direct Postgres queries, or you need complex server-side business logic beyond what Hasura Actions support.
Use Cases
- • Generating instant CRUD GraphQL APIs over existing Postgres databases for agent data access
- • Realtime subscriptions for agents to react to database changes without polling
- • Role-based data access control where agents have different permission levels
- • Event triggers to fire webhooks when database rows are inserted/updated/deleted
- • Remote schemas to federate multiple GraphQL APIs into unified schema for agents
Not For
- • NoSQL databases without Hasura connector support
- • Complex custom business logic (Hasura adds API layer, not application logic)
- • Teams that prefer REST-only or want to avoid GraphQL complexity
Interface
Authentication
Admin secret for privileged access; JWT with x-hasura-role and x-hasura-user-id claims for user context. JWT can be issued by Auth0, Clerk, Supabase, or custom service.
Pricing
Self-hosted community edition is fully featured and free. Hasura Cloud adds caching, monitoring, and managed infrastructure.
Agent Metadata
Known Gotchas
- ⚠ JWT claims must include x-hasura-default-role and x-hasura-allowed-roles — missing claims cause unhelpful 'Could not verify JWT' errors
- ⚠ N+1 query problem is automatically solved by Hasura's DataLoader batching — but complex nested queries can still be expensive
- ⚠ Admin secret should never be used in client-side code — always use JWT auth for agent access to maintain row-level security
- ⚠ Hasura metadata (permissions, relationships) is separate from database schema — migrations don't automatically update metadata
- ⚠ Subscription invalidation: every database write to a subscribed table re-executes subscription query — high write tables cause high CPU
Alternatives
Full Evaluation Report
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Scores are editorial opinions as of 2026-03-07.