Hasura Cloud API
Managed GraphQL engine that instantly generates a GraphQL and REST API from a PostgreSQL schema with subscriptions and row-level security via session variables.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Row-level security via JWT session variables is a strong model. Admin secret should be rotated regularly and never exposed to agent runtimes. Hasura Cloud enforces TLS on all connections.
⚡ Reliability
Best When
An agent needs instant, schema-driven read/write access to a relational PostgreSQL database with fine-grained authorization and real-time subscriptions.
Avoid When
The workload is purely analytical or the agent requires complex multi-step transactions that exceed GraphQL mutation capabilities.
Use Cases
- • Query and mutate PostgreSQL data through a strongly-typed GraphQL API without writing resolvers
- • Subscribe to real-time data changes for event-driven agent workflows
- • Enforce row-level security so agents can only access data scoped to their identity
- • Expose REST endpoints from named GraphQL queries for agents that prefer REST
- • Federate multiple data sources (PostgreSQL, REST, GraphQL) into a single unified API
Not For
- • Agents that need complex stored-procedure logic or heavy server-side computation
- • Use cases requiring a non-PostgreSQL primary store (e.g., pure MongoDB or Cassandra)
- • Teams that want a fully self-hosted solution with zero vendor dependency
Interface
Authentication
Uses JWT bearer tokens for end-user authorization; session variables inside the JWT control row-level permissions. A separate admin secret (x-hasura-admin-secret header) is used for privileged operations. Role-based access control is defined in the Hasura console.
Pricing
Free tier does not require a credit card. Overages on the free tier are blocked rather than charged.
Agent Metadata
Known Gotchas
- ⚠ Session variables in JWT must be set by the auth service before the agent calls Hasura; missing variables silently fall back to the anonymous role, which may return empty data rather than an error.
- ⚠ Subscription websocket connections require the graphql-ws protocol; agents using older subscriptions-transport-ws may fail silently.
- ⚠ The admin secret bypasses all row-level security; agents should never use the admin secret in production workflows.
- ⚠ Introspection is disabled for non-admin roles by default in Hasura Cloud, so agents cannot auto-discover the schema without explicit enablement.
- ⚠ REST endpoint responses do not include a GraphQL errors field; HTTP 200 is always returned even for partial failures, requiring agents to inspect the response body for errors.
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Hasura Cloud API.
Scores are editorial opinions as of 2026-03-06.