Sections
Agent

AgentCred

celo|id 9052|owner 0x202ebd8c160bf77eb026406c7c2ba2602e974eaa

Checks 1–7

Identity and trust layer for autonomous AI agents. AgentCred issues cryptographic credentials — scoped, verifiable, revocable. Deployed on Celo mainnet. On-chain credential anchoring, ERC-8004 reputation scoring, and dispute validation.

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
    74443315
    chain_id
    42220
    token_id
    9052

    checked at 2026-08-10T07:04:40.227035Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    bytes
    763
    data_uri_variant
    base64
    inline
    true
    scheme
    data
    uri
    data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,049 chars — expand)data:application/json;base64,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

    checked at 2026-08-10T07:04:40.227035Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    763
    body_sha256
    bebaa11b4f82f49273d2fc38079b6b6ed03073c1b4c84e2aae57380f184c119a
    content_type

    checked at 2026-08-10T07:04:40.227035Z

  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
    (empty)
    must_violations
    (empty)
    registrations_checked
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-08-10T07:04:40.227035Z

  5. Claims its identity?rung 5 · bound

    pass

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

    passed

    declared_agent_id
    9052
    declared_chain
    42220
    declared_registry
    eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
    match
    true
    registrations_seen
    1

    checked at 2026-08-10T07:04:40.227035Z

  6. Answers?rung 6 · live

    pass

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

    passed

    endpoints
    {"declared":"https://agentcred.io/mcp","elapsed_ms":1034,"final_url":"https://agentcred.io/mcp","http_status":200,"index… (658 chars — expand){"declared":"https://agentcred.io/mcp","elapsed_ms":1034,"final_url":"https://agentcred.io/mcp","http_status":200,"index":0,"kind":"https","name":"MCP","outcome":"live","probed":true,"probed_url":"https://agentcred.io/mcp"}, {"declared":"https://agentcred.io","elapsed_ms":810,"final_url":"https://agentcred.io/","http_status":200,"index":1,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://agentcred.io"}, {"declared":"https://agentcred.io/v1","elapsed_ms":1132,"final_url":"https://agentcred.io/v1","http_status":200,"index":2,"kind":"https","name":"API","outcome":"live","probed":true,"probed_url":"https://agentcred.io/v1"}
    endpoints_answered_not_live
    0
    endpoints_declared
    3
    endpoints_live
    3
    endpoints_our_error
    0
    endpoints_payment_gated
    0
    endpoints_probeable
    3
    endpoints_probed
    3
    endpoints_refused
    0

    checked at 2026-08-10T07:07:52.226139Z

  7. Has feedback?rung 7 · attested

    pass

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

    passed

    distinct_authors
    1
    feedback_count
    1

    checked at 2026-08-10T07:04:40.227035Z

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

celo
token id
9052
owner
0x202ebd8c160bf77eb026406c7c2ba2602e974eaa
block
74,443,315
observed
2026-08-10T07:04:40.229846Z
tokenURI
data:application/json;base64,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

What the fetch saw

data
scheme
data
request url
final url
http status
content type
size
763 bytes
sha256
bebaa11b4f82f49273d2fc38079b6b6ed03073c1b4c84e2aae57380f184c119a
elapsed
0 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
4131a5a1-0461-46ce-b393-bcd825d2113b
chain
celo
pinned block
74,443,315
agents
9,765
started
2026-08-10T06:41:13.909696Z
finished
2026-08-10T07:06:42.747601Z
checker
0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- celo   # at block 74443315

What each check measures →