An AI agent is a program that acts as a cognitive analyst, combining reasoning engine, task planner, and tool executor to achieve a set objective
The seven checks, with their evidence
7 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 52281733
- chain_id
- 8453
- token_id
- 30538
checked at 2026-10-07T08:42:00.193467Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 4138
- data_uri_algorithm
- gzip
- data_uri_variant
- compressed
- inline
- true
- scheme
- data
- uri
data:application/json;enc=gzip;level=6;base64,H4sIAJ17tGkAA51XX2/bNhB/76cQvNckcoPYcfMWDCvQAcOCtW/DIJyok8RG4nEk5cYZ+t13pG… (1,726 chars — expand)
data:application/json;enc=gzip;level=6;base64,H4sIAJ17tGkAA51XX2/bNhB/76cQvNckcoPYcfMWDCvQAcOCtW/DIJyok8RG4nEk5cYZ+t13pGRbkmXFrR9k8XS/493x/vG/d1G0cDuNi4doUTqn7UMco9T2Bl2JBpv6hkwR//bp6bMnX2+Wy7tfDBbSOgNOkrrevl9ceSEK6iDkdxDPltSyI2dohZHas/qvjyp6/BRBgcpF0kYQaUOFgTpyJbgIhGOaJwsqlHRyixEoqHbWXTGpTqWSqogMAu/g31AVUuFV5MA+R7oCpdBcMSSLHFEV4QuKxpHhFcsuJXp5kUUXUfoVhZffailrVqnvgrSi9MYbawWoG9A6XkF2v16t795/uN/crje4+rDOb9e3TFkBrNbpZnkPIDCH9fs7gE0q7leYiyWu1tkyzbPNzVddtJtZNFsp0PJ+f/M6ivwh+N/Bh3/8+hRYAxFVpkkq11fvI++UEj3fsFOOnLXQX9jso+BAzcBBYlCTcYuO+k8f8mSo1m4ECl5/xcSDJ1F/oaXG9K1ocVomGQl7wIT/7y3yxM4/Hz9/nDe0kK5sUm9mDIVyYhcT2Dw+guyzrMYWQ7YFJTBjq7tASUJs8EssSpAqoTxxJTVF6RIO5Ea4xvDHg9Q3ZJQ7TZwdVtqEAxnbRLgUXBGvSjLyldTx+wDtfe+kgCpprYsFZV5Gt3L44hJHCVPb8L0QN1jNA2tg+/gRaAclAzn5RiZLOG3TCuufE1Mg1ejMbgBuMklxeCaiAmtlzqgTx/a42APh5adUYCIZrL0d25H7U7DYovvUkEVtuUEfK3EgiAphfHzTnP82UEm3S9gytLbm+vc2hkussjkZrz4Hi5YaK+aYBVrhzU2kyrl6cwwOmHFL2iZ1xc9YyERkHEMql0VzGsID3pqdxmXURw9UaJy3+KQoZFRzao1TsTBSNBXnF3IC79/5KByKUlFFxTAKJtmHUd5jEYZ0UvOhFzj2KGZNGz7x4e3M54TP0IwPcQJ+Vukj715ST6fEcvMaJYqvGcUubv+4AJHx3eeUgWSVcC9LCpiCa/qG5kwBQrWVhpRXwKeCkD4UYlFxn3Mc3O16QqatwbiEPZyNdpwUR8q3sjY4U3nql0kUiksZB9RjCP4octLat2GaKikGauZS+aoejiRtLKectXEK6nmk1CSfd1ZT+wMjGjp3kr0jXso3IL4JkmqL1rXRuZ9FepiCtmiCGwJMNyl7gjkF+5/T5fj5chAbzoEqdmeSdRY89/FiId2Ky6KBfccfePcSNGQ1D6D7ybePLhEqVwrgmqT5o5cyXwJ6AIfcSDGTYlTaS7JaciSGrsEqOZ63pK3jkhhxxpHnMN3/D6L69OnSVzYskdtqNwvGBoVpZAitObbReo6VnR2G/qAYNyXkhjQWb0lIn8ddLMddBrc+ngzxMSKTFlIZDJ1iPxrfNuZ9xRh334sxEzVpln8rrZ8fXk8Cr4fi2D6MCiNhYaQ5H709boWO5ztf0favZ2JmHkO6a0rn3DiBAcM3NGYZZ+Y8igc4R9xShhuZxrZ5bCFHx51U+cGpW81ycn1o/HjLkaZO/DRm5iw5658x75gwuiHxM4xSi/7lOgxTLdk22t/gMPvi5RynLHYPXoNzXND757oQZqcdXXO3VVRLsSfzPbDpGA878q3bX4QfIlYRA+XlbnnbbdiR333/H7i0N0sqEAAA
checked at 2026-10-07T08:42:00.193467Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 4138
- body_sha256
- 0d304de7f5925022050629a73c217b80dc569916efbcb50a1562f262b5a4bd36
- content_type
- —
checked at 2026-10-07T08:42:00.193467Z
Follows the spec?rung 4 · conformant
passThe document meets what ERC-8004 requires of it.
passed
- both_fields_present
- false
- legacy_endpoints_field
- false
- may_gaps
- x402Support, supportedTrust
- must_violations
- (empty)
- registrations_checked
- 0
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:42:00.193467Z
Claims its identity?rung 5 · bound
unclaimedThe 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 2026-10-07T08:42:00.193467Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://Facebook.com","elapsed_ms":0,"error":"robots_disallowed","index":0,"kind":"https","name":"MCP","out… (433 chars — expand)
{"declared":"https://Facebook.com","elapsed_ms":0,"error":"robots_disallowed","index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://Facebook.com"}, {"declared":"https://github.com/agntcy/oasf/","elapsed_ms":1377,"final_url":"https://github.com/agntcy/oasf/","http_status":200,"index":1,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/agntcy/oasf/"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 2
- endpoints_live
- 1
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 2
- endpoints_probed
- 2
- endpoints_refused
- 1
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-10-07T08:42:00.193467Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 30538
- owner
- 0x91d1a653191be73ee8047f0f87cfcd5d38b0bfa9
- block
- 52,281,733
- observed
- 2026-10-07T08:42:00.196220Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 4,138 bytes
- sha256
- 0d304de7f5925022050629a73c217b80dc569916efbcb50a1562f262b5a4bd36
- elapsed
- 0 ms
This run
reproducible- run
- c67de707-a82d-4589-8936-acd5a584c720
- chain
- base
- pinned block
- 52,281,733
- agents
- 98,319
- started
- 2026-10-07T06:00:13.662398Z
- finished
- 2026-10-07T19:18:37.899751Z
- checker
- 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- base # at block 52281733