Unlike passive chatbots, AI agents can make decisions, reason through complex problems, and iterate autonomously, often using frameworks like ReAct to achieve results
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
- 30508
checked at 2026-10-07T08:41:59.610102Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 2466
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (3,317 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:41:59.610102Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 2466
- body_sha256
- 6a4295d43722b2146d8311942f49c1a51f0e71f8a92a09cba614ae1253b42cc5
- content_type
- —
checked at 2026-10-07T08:41:59.610102Z
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 2026-10-07T08:41:59.610102Z
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 2026-10-07T08:41:59.610102Z
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","error":"no_response","index":0,"kind":"https","name":"MCP","outcome":"our_error","p… (416 chars — expand)
{"declared":"https://facebook. com","error":"no_response","index":0,"kind":"https","name":"MCP","outcome":"our_error","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
- 1
- endpoints_payment_gated
- 0
- endpoints_probeable
- 2
- endpoints_probed
- 2
- endpoints_refused
- 0
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 2026-10-07T08:41:59.610102Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 30508
- owner
- 0x8638a1deaedfcccd60ca2404101d3dc60e5b21cb
- block
- 52,281,733
- observed
- 2026-10-07T08:41:59.612875Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 2,466 bytes
- sha256
- 6a4295d43722b2146d8311942f49c1a51f0e71f8a92a09cba614ae1253b42cc5
- 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