other · Listed · eip155:8453 · Found · 2 endpoints · Not used for Gateway
hash-hmac.underscoredone.com
hash-hmac
X402 endpoints at hash-hmac.underscoredone.com.
Not used for Gateway
Catalogued so agents know it is dead/unreachable — Gateway will not route it. Still catalogued — dead/unreachable knowledge is index value. (Degraded — catalogued (dead/unreachable known) · not used for Gateway)
Indexed from this operator's public /.well-known/x402.json. Found is not operator-owned and is not attested. Claim or opt out.
Agent Read · Cleared Index
SKIP
Skip until Cleared checks or settle mesh clear.
confidence
83%
source
signal
Index before you pay. Same payload for agents:
GET /api/cleared/agent-read?slug=cat-hash-hmac-underscoredone-com
When to call
- Budget between $0.00 and $0.01 per call on published endpoints.
- X402 endpoints at hash-hmac.underscoredone.com.
Risks
- Found — not operator-owned; claim status unknown.
- No Cleared settlement receipt on file yet.
- Uptime not yet marked stable.
- No Gateway traffic yet — market share unproven.
Price posture
Published 2 endpoints from $0.00 to $0.01.
Category · Gateway
other · no Gateway routes yet — early / unproven on Cleared market share.
Endpoint hints
GET /hashGET /hash at $0.00.
POST /hashGive this API any text or binary data and it instantly returns its fingerprint under whichever hash algorithms you choose — SHA-256, SHA-512, MD5, BLAKE2, CRC32
Evidence (Cleared)
- → Intake degraded · not used for Gateway
- → Trust 15/100 · fail · tier listed
- → Protocol x402 · eip155:8453
- → Manifest pending · schema partial
- → Found listing — indexed from public x402.json, not operator-attested.
Endpoints
https://hash-hmac.underscoredone.com/hash
$0.00GET https://hash-hmac.underscoredone.com/hashGive this API any text or binary data and it instantly returns its fingerprint u
$0.01POST https://hash-hmac.underscoredone.com/hashGive this API any text or binary data and it instantly returns its fingerprint under whichever hash algorithms you choose — SHA-256, SHA-512, MD5, BLAKE2, CRC32, and more. It also signs data with a secret key (HMAC) and, most importantly, safely verifies whether an incoming signature matches — using a timing-safe comparison that prevents secret-leaking attacks. Language models cannot perform hashing: they produce a string of the right length and character set that looks correct but is simply wrong. Every webhook verification, idempotency key, cache fingerprint, or integrity check that relies on a hallucinated hash is silently broken. This API is the cure.
Checks
pending
partial
2026-08-24T23:00:36.172Z
Manifest HTTP 404. Listed anyway. | No settlement evidence found in chain signals.
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