the402 endpoint detail

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goodsong.dev verify package

https://goodsong.dev/verify/package

answers 402

Verify a package: does it exist, is it deprecated or yanked, and does it have known vulnerabilities? Checked against the npm/PyPI/crates.io registry plus OSV.dev advisories.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0xf3b36a95913eb2676fcdedb2ba6b0c96ade58de1
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
69 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:12:07.836Z (23d ago)
Category
identity

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fgoodsong.dev%2Fverify%2Fpackage"