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Keyronne JSON schema
https://keyronne.com/api/validate-json
answers 402
Validates JSON against a schema and fixes common LLM output mistakes.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0xB86F95EF5FA904318Ea9Df3b59AdCe099b478fC4
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 89 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:09:50.551Z (20d ago)
- Category
- data
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fkeyronne.com%2Fapi%2Fvalidate-json"