"Descriptions: Your Gateway to the World!" > Every digital asset tells a story. Your description is the bridge between your creative vision and the global community. Designed for seamless interoperability, these details will follow your NFT across all ERC-721 compatible applications, explorers, and marketplaces, ensuring your narrative is heard everywhere in the Web3 ecosystem.
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
- 32313
checked at 2026-10-07T09:32:22.030716Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1013
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (1,381 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T09:32:22.030716Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1013
- body_sha256
- 8aa0d4d19e5d08c72fd1f153be4e70ffee42e135003a4806c0673baacaed0fdd
- content_type
- —
checked at 2026-10-07T09:32:22.030716Z
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 2026-10-07T09:32:22.030716Z
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 2026-10-07T09:32:22.030716Z
Answers?rung 6 · live
refusedA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
refused
- endpoints
- {"declared":"https://facebook.com","elapsed_ms":13,"error":"robots_disallowed","index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://facebook.com"}
- 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 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 10
checked at 2026-10-07T09:32:22.030716Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 32313
- owner
- 0xcc20a86870bcd94e39a6b6566d34bdd0c692fe33
- block
- 52,281,733
- observed
- 2026-10-07T09:32:22.144585Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,013 bytes
- sha256
- 8aa0d4d19e5d08c72fd1f153be4e70ffee42e135003a4806c0673baacaed0fdd
- 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