the402 endpoint detail

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med.halowerk.com v1 boxed-warning

https://med.halowerk.com/v1/boxed-warning

answers 402

Answers whether a drug carries a boxed warning, the strongest warning class the FDA applies, and returns the warning text with the label version it came from. The check runs across multiple labels for the same substance rather than the first hit, because labels are maintained independently by each manufacturer and the same generic can carry a boxed warning at one and not at another; taking the fir

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
0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
151 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:23:44.107Z (28d ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmed.halowerk.com%2Fv1%2Fboxed-warning"