← All endpoints
attester.dev v1 diff
https://attester.dev/v1/diff
payable
Symbol-level diff between two versions of a PyPI or npm package: added/removed symbols, signature changes, new deprecations, and a breaking/additive/neutral classification with per-side artifact proof. $0.02 USDC per diff.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.02
- Network
- base
- Pay to
- 0x57407D691F755cAa107647718F3582a8A87467dD
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 989 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-10T09:11:52.854Z (1d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fattester.dev%2Fv1%2Fdiff"