the402 endpoint detail

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fittings.sh ndc package-lookup

https://fittings.sh/v1/ndc/package-lookup

answers 402

The FDA NDC Directory record for a package or product National Drug Code: brand and generic name, labeler, dosage form, route, active ingredients, marketing category and status.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0xe025442C0d6dC17aD2b9eB888B3565bdFCd98638
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
173 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:21:44.214Z (22d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Ffittings.sh%2Fv1%2Fndc%2Fpackage-lookup"