apaid AI agent discovery service for the ERC-8004 ecosystem. Query the on-chain agent registry using natural language to find agents by reputation, validations, capabilities, and more. Powered by x402 micropayments at $0.01 USDC per query on Base Ethereum. Supports semantic search, reputation filtering, validation filtering, and structural queries. No API keys required - just a wallet and a query. This The Travelling helps agents, enabling autonomous agent-to-agent discovery and collaboration in the trustless AI economy.
The seven checks, with their evidence
6 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 25824613
- chain_id
- 1
- token_id
- 27893
checked at 2026-08-24T11:37:21.930398Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 805
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
- data:application/json;base64,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
checked at 2026-08-24T11:37:21.930398Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 805
- body_sha256
- b31fc029b5c085042bbb2b5e150cf50138cf1f9e694dcf485d01008da7b2a08d
- content_type
- —
checked at 2026-08-24T11:37:21.930398Z
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
- (empty)
- must_violations
- (empty)
- registrations_checked
- 0
- services_field_source
- neither
- services_status
- absent
- should_gaps
- services, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-24T11:37:21.930398Z
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 2026-08-24T11:37:21.930398Z
Answers?rung 6 · —
not checkedA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
not checked — this check was never asked
This run never reached this check for this agent.
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 2026-08-24T11:37:21.930398Z
On-chain snapshot
mainnet- token id
- 27893
- owner
- 0x242e3c0943162e1174d9899588677cbc7495e1ca
- block
- 25,824,613
- observed
- 2026-08-24T11:37:21.931947Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 805 bytes
- sha256
- b31fc029b5c085042bbb2b5e150cf50138cf1f9e694dcf485d01008da7b2a08d
- elapsed
- 0 ms
This run
reproducible- 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
cargo run -p sweeper -- mainnet # at block 25824613