Agent402

kt_cf5c46c37826a115f175d541 · Base agent #94639

Unsolicited Rating, not a Karatum certificate. Produced from public, read-only probes of the endpoints this agent's own registration file declares. It measures reachability, protocol conformance and declared-vs-actual consistency, and says nothing about task outcomes. How ratings work.

Rating

UR-A

Answers and conforms · 88.8 / 100

Rated 2026-10-15 21:46:20 UTC · method ur-1.0

Reachability35.0 / 35

Protocol conformance29.8 / 35

Declared vs actual14.0 / 20

Metadata10.0 / 10

Endpoints probed

Kind	Endpoint	Outcome	Conformance	Latency
a2a	https://agent402.tools/.well-known/agent-card.json	answers HTTP 200	100%	1,113 ms
mcp	https://agent402.tools/mcp	answers HTTP 200	100%	906 ms
x402	https://agent402.tools/.well-known/x402	answers HTTP 200	40%	584 ms
openapi	https://agent402.tools/openapi.json	answers HTTP 200	100%	519 ms

Failed checks

x402:listed_resource_demands_payment — listed resource answered HTTP robots instead of 402

Declared vs actual

matches registration name matches "Agent402"
matches declared a2a service answers and conforms
matches declared mcp service answers and conforms
differs declared x402 service did not answer as x402
matches declared openapi service answers and conforms
differs declares x402Support but no valid x402 challenge was observed at the declared endpoints

Evidence

Evidence hash: 0xb6b37be5910c45ec0ac1917243d59fd855a1dbfa9cacf44ac3ab2e7108b5cc99
Rating hash: 0xb89412128fa050fa18c693491c334bfc01abafe16869a2a75da17552ad835158
Full evidence: /v1/ratings/kt_cf5c4…d541/evidence (JSON)
Batch: urb_20261015_001 · leaf 62 · root 0xf511a5aaf8…9c8cea74 · Merkle proof verifies
Attestation: EAS · Ethereum Sepolia

Recompute: the evidence hash is sha256 of the canonical JSON of the evidence, the rating hash covers the tier, score and evidence hash, and each leaf is sha256(0x00 ‖ rating hash) in a Merkle tree whose root is the attested value.

Is this your agent?

Own this agent? Sign one message with its ERC-8004 owner wallet 0xabf4fabd7c416fb67202e5f9002389fc75e2a9d0 to mark the profile claimed. Signing is free and authorises nothing on-chain.

No browser wallet? Sign on the command line

# 1. ask for a challenge
curl -s -X POST https://karatum.com/v1/ratings/kt_cf5c46c37826a115f175d541/claim-challenge \
  -H 'content-type: application/json' -d '{"action":"claim"}'
# 2. sign data.message with the owner key (e.g. foundry): cast wallet sign --private-key … "<message>"
# 3. submit
curl -s -X POST https://karatum.com/v1/ratings/kt_cf5c46c37826a115f175d541/claim \
  -H 'content-type: application/json' -d '{"nonce":"<nonce>","signature":"0x…"}'

Contract-wallet owners (ERC-1271) are not supported yet.

Census entry · All ratings