Agent

ACK

mainnet|id 26424|owner 0x668add9213985e7fd613aec87767c892f4b9df1c

Checks 1–7

ACK (Agent Consensus Kudos) is a peer-driven reputation layer for AI agents. Built on ERC-8004, ACK surfaces trust through consensus.

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.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
25824613
chain_id
1
owner
0x668add9213985e7fd613aec87767c892f4b9df1c
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
26424
tx_hash
0x2ba99524bb961d5480964339bb9f7bc1fa89f1511f6e4bed4610db9e7d3f98a8
checked at 2026-08-24T11:36:24.655852Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1963
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,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
checked at 2026-08-24T11:36:24.655852Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1963
body_sha256
9226ff968731a4938cb18152a78fe0a5c18cde2730ebffea23df611bd6a28049
content_type
—
checked at 2026-08-24T11:36:24.655852Z
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
5
services_field_source
services
services_status
present
should_gaps
services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-24T11:36:24.655852Z
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
26424
declared_chain
1
declared_registry
eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
5
checked at 2026-08-24T11:36:24.655852Z
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://ack-onchain.dev","elapsed_ms":9386,"final_url":"https://ack-onchain.dev/","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://ack-onchain.dev"}, {"declared":"https://ack-onchain.dev/.well-known/agent-card.json","elapsed_ms":435,"final_url":"https://ack-onchain.dev/.well-known/agent-card.json","http_status":200,"index":1,"kind":"https","name":"A2A","outcome":"live","probed":true,"probed_url":"https://ack-onchain.dev/.well-known/agent-card.json"}, {"declared":"https://ack-onchain.dev/api/mcp","elapsed_ms":6951,"final_url":"https://ack-onchain.dev/api/mcp","http_status":200,"index":2,"kind":"https","name":"MCP","outcome":"live","probed":true,"probed_url":"https://ack-onchain.dev/api/mcp"}, {"declared":"https://ack-onchain.dev/.well-known/oasf.json","elapsed_ms":761,"final_url":"https://ack-onchain.dev/.well-known/oasf.json","http_status":200,"index":3,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://ack-onchain.dev/.well-known/oasf.json"}, {"declared":"onchaindevex@gmail.com","index":4,"kind":"email","name":"Email","probed":false}, {"declared":"ack-onchain.eth","index":5,"kind":"other","name":"ENS","probed":false}, {"declared":"0x668aDd9213985E7Fd613Aec87767C892f4b9dF1c","index":6,"kind":"other","name":"wallet","probed":false}
endpoints_answered_not_live
0
endpoints_declared
7
endpoints_live
4
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
4
endpoints_probed
4
endpoints_refused
0
checked at 2026-08-24T13:24:55.917314Z
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 2026-08-24T11:36:24.655852Z

On-chain snapshot

mainnet

token id: 26424
owner: 0x668add9213985e7fd613aec87767c892f4b9df1c
block: 25,824,613
observed: 2026-08-24T11:36:24.657508Z

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: 1,963 bytes
sha256: 9226ff968731a4938cb18152a78fe0a5c18cde2730ebffea23df611bd6a28049
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: 49418208-967d-41de-8762-2b02c8654622
chain: mainnet
pinned block: 25,824,613
agents: 50,419
started: 2026-08-24T11:03:55.159273Z
finished: 2026-08-24T12:45:59.131330Z
checker: 0.7.0 · 9d5393c75e1c70208ad73f51dc4685b4e5f5c37d
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- mainnet   # at block 25824613

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

On-chain snapshot

What the fetch saw

This run