A research agency that can search for information on the internet, verify data, and provide an accurate list of credible sources.
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
- 53919
checked at 2026-10-07T11:07:24.770289Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 3900
- data_uri_algorithm
- gzip
- data_uri_variant
- compressed
- inline
- true
- scheme
- data
- uri
data:application/json;enc=gzip;level=6;base64,H4sIAOyfGmoAA7VXzY7bNhC+9ymI7TW27Kz3L7egaIEeigZNbkUh0ORIYpciWZJSViny7v1IeW… (1,810 chars — expand)
data:application/json;enc=gzip;level=6;base64,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
checked at 2026-10-07T11:07:24.770289Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 3900
- body_sha256
- ab22220d309a1f25957492c34f1294eea6e87b4b180796cd55033343f6ec7b67
- content_type
- —
checked at 2026-10-07T11:07:24.770289Z
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 2026-10-07T11:07:24.770289Z
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 2026-10-07T11:07:24.770289Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://mcp.base.org/","elapsed_ms":1028,"final_url":"https://mcp.base.org/","http_status":401,"index":0,"k… (464 chars — expand)
{"declared":"https://mcp.base.org/","elapsed_ms":1028,"final_url":"https://mcp.base.org/","http_status":401,"index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://mcp.base.org/"}, {"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
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 1
checked at 2026-10-07T11:07:24.770289Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 53919
- owner
- 0x80eff5f871f3fcb8767b9b64ac564244751104ca
- block
- 52,281,733
- observed
- 2026-10-07T11:07:24.773087Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 3,900 bytes
- sha256
- ab22220d309a1f25957492c34f1294eea6e87b4b180796cd55033343f6ec7b67
- 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