← All endpoints
agent402.tools skill schema-evolution
https://agent402.tools/api/skill/schema-evolution
answers 402
Bundled execution of the API contract drift check workflow - The 'did this API contract change in a way that breaks our integration?' workflow. Diff two OpenAPI snapshots structurally, lint the new one for agent-readiness regressions, extract the endpoint surface for inventory comparison, validate a known-good payload against the new contract, and summarize security-relevant changes. Six tools, on
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 112 ms
- Payment options
- 13 usable of 13
- Last checked
- 2026-09-06T01:17:20.654Z (19d ago)
- Category
- web-scraping
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fskill%2Fschema-evolution"