Prompt
What should I use to test GraphQL APIs?
Latest observation
Oct 6, 2026
OpenAI APIWeb search: off
For testing GraphQL APIs, a good default choice is Apollo Sandbox or GraphiQL for manual testing, and Postman or Insomnia for broader API testing and automation.
Best options by use case
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Manual exploration / debugging
- GraphiQL: Great built-in IDE for querying, introspection, and schema exploration.
- Apollo Sandbox: Modern, easy to use, supports headers, variables, and schema browsing.
- Altair: Another solid GraphQL client with nice features.
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API testing and automation
- Postman: Good if you already use it for REST and want to mix REST + GraphQL tests.
- Insomnia: Excellent GraphQL support, clean UI, good for saved environments and auth.
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Developer-focused workflow
- VS Code extensions like GraphQL tools can help with schema validation and query development.
My recommendation
- If you want the easiest manual tester: Apollo Sandbox
- If you want full API testing across REST and GraphQL: Postman
- If you want a GraphQL-first client: Insomnia
If you want, I can also suggest the best tool for your specific stack (Node, Python, Java, etc.) or give you a comparison table.