the402 endpoint detail

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agent402.co.uk json patch

https://agent402.co.uk/v1/utils/json/patch

answers 402

Agent402 UK. Apply RFC 6902 JSON Patch (add/remove/replace/move/copy/test) to a document. Use for agent state/config updates without rewriting whole blobs. Pure deterministic; max 100 ops; atomic on failure.

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
0x9EF92b278a3867C429751390EC427736eB4BABB2
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
127 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:27:00.388Z (1h ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.co.uk%2Fv1%2Futils%2Fjson%2Fpatch"