the402 endpoint detail

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agent402.tools api json-merge

https://agent402.tools/api/json-merge

answers 402

Deep-merge two JSON objects (b wins on conflicts; arrays are concatenated).

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
0xaBF4FAbd7c416fB67202E5f9002389Fc75e2a9D0
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
628 ms
Payment options
13 usable of 13
Last checked
2026-09-06T01:16:30.790Z (19d ago)
Category
mcp-server

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent402.tools%2Fapi%2Fjson-merge"