A linter for reasoning and rhetoric. Flags distortions, explains them, and proposes rewrites. Momus analyzes reasoning patterns, not facts or ideologies. More truth, less distortion, less tribal heat.
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
- 26125718
- chain_id
- 1
- token_id
- 22726
checked at 2026-10-05T11:21:42.306919Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- elapsed_ms
- 1008
- http_status
- 200
- scheme
- https
checked at 2026-10-05T11:21:42.306919Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 737
- body_sha256
- c25f9fc9af2b38971b6a1d324ae4e75dcfc62ab7f8cf1592e636866cb6f97114
- content_type
- application/json; charset=utf-8
checked at 2026-10-05T11:21:42.306919Z
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
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- services[].version
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-05T11:21:42.306919Z
Claims its identity?rung 5 · bound
passThe document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
- declared_agent_id
- 22726
- declared_chain
- 1
- declared_registry
- eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-05T11:21:42.306919Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://momus.app","elapsed_ms":443,"final_url":"https://momus.app/","http_status":200,"index":0,"kind":"ht… (708 chars — expand)
{"declared":"https://momus.app","elapsed_ms":443,"final_url":"https://momus.app/","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://momus.app"}, {"declared":"https://api.momus.app/x402","elapsed_ms":263,"error":"robots_disallowed","index":1,"kind":"https","name":"x402","outcome":"refused","probed":true,"probed_url":"https://api.momus.app/x402"}, {"declared":"https://api.momus.app/schema","elapsed_ms":322,"error":"robots_disallowed","index":2,"kind":"https","name":"schema","outcome":"refused","probed":true,"probed_url":"https://api.momus.app/schema"}, {"declared":"mailto:hello@momus.app","index":3,"kind":"email","name":"email","probed":false}- endpoints_answered_not_live
- 0
- endpoints_declared
- 4
- endpoints_live
- 1
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 3
- endpoints_probed
- 3
- endpoints_refused
- 2
checked at 2026-10-05T15:04:06.520133Z
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 2026-10-05T11:21:42.306919Z
Check it again, now
outside the censusOn-chain snapshot
mainnet- token id
- 22726
- owner
- 0xac66756cb0a022882411a5f06e3c15f8cbed71f4
- block
- 26,125,718
- observed
- 2026-10-05T11:21:42.309812Z
What the fetch saw
https- scheme
- https
- http status
- 200
- content type
- application/json; charset=utf-8
- size
- 737 bytes
- sha256
- c25f9fc9af2b38971b6a1d324ae4e75dcfc62ab7f8cf1592e636866cb6f97114
- elapsed
- 1,008 ms
This run
reproducible- run
- 67b76d5d-476f-4d7a-80e1-3580feac5a40
- chain
- mainnet
- pinned block
- 26,125,718
- agents
- 52,139
- started
- 2026-10-05T10:57:44.538042Z
- finished
- 2026-10-05T14:22:43.904654Z
- checker
- 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- mainnet # at block 26125718