the402 endpoint detail

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goodsong.dev verify drug

https://goodsong.dev/verify/drug

answers 402

Verify an FDA drug record: given a claim_type (approval, ndc, or recall) and its identifier, does that record actually exist, and does the given name match the canonical record? Checked against openFDA. Catches a fabricated or misattributed drug approval, NDC listing, or recall citation. Existence/status only, not medical advice.

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
210 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:12:07.530Z (23d ago)
Category
identity

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