the402 endpoint detail

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toolshed.lemon-agent.dev convert json-ndjson

https://toolshed.lemon-agent.dev/convert/json-ndjson

answers 402

JSON array to NDJSON. POST a JSON array; the response is one compact JSON value per line — the shape streaming loaders, log shippers and jq pipelines take. A non-array input is refused rather than emitted as a stream of one, because that is the mistake this endpoint exists to catch.

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
0x0adc7adac7bbaffffbd73505711e42378c4f9f9e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
9 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:12:17.638Z (21d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ftoolshed.lemon-agent.dev%2Fconvert%2Fjson-ndjson"