AgentCount
Sections
Agent

Attestra

xlayer|id 4514|owner 0x4cfa0be16b3e469124d30240f20c1429e620eb23

Checks 1–7

Attestra is a trust layer for the agentic internet that probes third-party agent services, scans their responses for safety, and scores whether they're real, reliable, and safe to use before autonomous agents pay or act on them.

Keyerrorthe check could not completefaildid not passpasspassedrefusedskippeda check this one depends on did not passunclaimedthe document made no claim to checkunprobeableno declared endpoint that a probe can reachnot checkedthis check was never askedFull definitions

The seven checks, with their evidence

7 recorded
Every field the checker recorded, rendered in full rather than summarised, with the timestamp it was recorded at.

  1. Registered?rung 1 · registered

    pass

    The agent exists in the on-chain registry, with an owner and a document URL.

    passed

    block_number
    67576783
    chain_id
    196
    owner
    0x4cfa0be16b3e469124d30240f20c1429e620eb23
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    4514
    tx_hash
    0xf26e91bf451cbe047e932760baa5020f056992025faf3cfb3629c6e19f8f7a6d

    checked at 2026-08-10T07:38:50.247837Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    2901
    final_url
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json
    http_status
    200
    request_url
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json
    scheme
    https
    uri
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json

    checked at 2026-08-10T07:38:50.247837Z

  3. Readable?rung 3 · parseable

    pass

    What came back is valid JSON that a machine can read.

    passed

    body_bytes
    960
    body_sha256
    5d6cdea5d0d653260de656d8ad3b277b068368d929b583b5c9b48c75cb7c9232
    content_type
    application/json

    checked at 2026-08-10T07:38:50.247837Z

  4. Follows the spec?rung 4 · conformant

    pass

    The document meets what ERC-8004 requires of it.

    passed

    both_fields_present
    false
    legacy_endpoints_field
    false
    may_gaps
    x402Support, active, supportedTrust
    must_violations
    (empty)
    registrations_checked
    0
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version, registrations
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-08-10T07:38:50.247837Z

  5. Claims its identity?rung 5 · bound

    unclaimed

    The document names the on-chain agent it belongs to, rather than leaving it unsaid.

    unclaimed — the document made no claim to check

    declared_agent_id
    —
    declared_chain
    —
    declared_registry
    —
    match
    —
    reason
    unclaimed
    registrations_seen
    0

    checked at 2026-08-10T07:38:50.247837Z

  6. Answers?rung 6 · live

    refused

    A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.

    refused

    endpoints
    {"declared":"https://attestra-production.up.railway.app/v1/attestation/{service_id}","elapsed_ms":10006,"error":"robots_… (320 chars — expand){"declared":"https://attestra-production.up.railway.app/v1/attestation/{service_id}","elapsed_ms":10006,"error":"robots_unavailable: timeout fetching robots.txt","index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://attestra-production.up.railway.app/v1/attestation/{service_id}"}
    endpoints_answered_not_live
    0
    endpoints_declared
    1
    endpoints_live
    0
    endpoints_our_error
    0
    endpoints_payment_gated
    0
    endpoints_probeable
    1
    endpoints_probed
    1
    endpoints_refused
    1

    checked at 2026-08-10T08:28:46.157805Z

  7. Has feedback?rung 7 · attested

    fail

    At least one on-chain feedback entry names this agent.

    did not pass

    distinct_authors
    0
    feedback_count
    0
    reason
    no_feedback

    checked at 2026-08-10T07:38:50.247837Z

Check it again, now

outside the census
Everything above is one sweep, pinned to one block. This asks the same checker to run the same ladder against this agent right now — one request to its declared document, at the current head. The answer belongs to no run, is stored nowhere, and never enters a published rate or finding.
Sends one request to the agent’s own server. Rate limited.

On-chain snapshot

xlayer
token id
4514
owner
0x4cfa0be16b3e469124d30240f20c1429e620eb23
block
67,576,783
observed
2026-08-10T07:38:50.251578Z
tokenURIopen →
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json

What the fetch saw

https
scheme
https
request url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json
final url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/b2d1654a-7721-4d9d-933b-b7ca9c26422d.json
http status
200
content type
application/json
size
960 bytes
sha256
5d6cdea5d0d653260de656d8ad3b277b068368d929b583b5c9b48c75cb7c9232
elapsed
2,901 ms

This run

reproducible
Every status above is scoped to this sweep, at this block. Rerun it and you should get these answers back.
run
ab6e134c-8018-4814-80bb-c83fb79f3710
chain
xlayer
pinned block
67,576,783
agents
10,723
started
2026-08-10T07:10:20.176367Z
finished
2026-08-10T08:11:41.005767Z
checker
0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- xlayer   # at block 67576783

What each check measures →