the402 endpoint detail

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archtools.dev tools generate-hash

https://archtools.dev/v1/tools/generate-hash

payable

Compute SHA-256, SHA-512, SHA-1 or MD5 hashes for any text in milliseconds. Checksums, signatures and dedup for agent pipelines. Pay per call with USDC (x402) or credits - archtools.dev

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x2583aAc89f58a63D9CCbeDaa5e3BaF2196Aa967e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
164 ms
Payment options
4 usable of 4
Last checked
2026-08-10T09:17:59.328Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Farchtools.dev%2Fv1%2Ftools%2Fgenerate-hash"