the402 endpoint detail

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toolbelt402.tpoborne.workers.dev json validate

https://toolbelt402.tpoborne.workers.dev/json/validate

payable

Validate JSON data against a JSON Schema (draft-07, 2019-09, 2020-12) — returns exact error locations, keywords, and messages for programmatic handling. Deterministic schema validation.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0x06b40bf8Dfdc45049ea7f600c84301E227a2Ca15
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
10 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:14:13.706Z (2d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ftoolbelt402.tpoborne.workers.dev%2Fjson%2Fvalidate"