the402 endpoint detail

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api.agentstools.dev pkg preflight

https://api.agentstools.dev/pkg/preflight

payable

Install-safety preflight for one dependency BEFORE pip install / npm i. Returns a safe / caution / block verdict fusing existence, OSV malware flags, typosquat distance to a popular package, a known-hallucination corpus, and freshness metadata. Supply-chain indicators, not a guarantee.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.03
Network
base
Pay to
0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
161 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:12:43.920Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.agentstools.dev%2Fpkg%2Fpreflight"