GraphQL Playground
Client‑side • Zero‑build
CORS: unknown
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Endpoint URL
Use POST
Include credentials
If you hit a CORS error, enable CORS on the server or use a proxy (see notes below).
Headers (JSON)
Example: {"Authorization":"Bearer …"}
Docs (Schema Introspection)
Fetch Schema
CORS / Proxy Notes
Browsers block cross‑origin requests unless the API sets
Access-Control-Allow-Origin
.
For dev, you can run a tiny proxy that adds CORS headers (Node/Express, Nginx, Cloudflare Worker). This UI supports an optional Proxy URL below.
Server fix (Express):
app.use(require('cors')({ origin: '*' }))
.
Optional Proxy URL (prefix)
Run (Ctrl/Cmd⏎)
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Variables (JSON)
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