Pay-per-call diagnostic infrastructure for autonomous agents on Base. 11 x402 endpoints delivering health scores, risk analysis, gas optimisation, wash scans, and AHS composite scoring. The mechanic layer for the agent economy.
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
- 32328
checked at 2026-10-07T09:34:22.026451Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 711
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (977 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T09:34:22.026451Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 711
- body_sha256
- 361db40a8cc54393eac9d2e8c4ff366a9bd9bb6f25b87327575574c81da565f9
- content_type
- —
checked at 2026-10-07T09:34:22.026451Z
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 2026-10-07T09:34:22.026451Z
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 2026-10-07T09:34:22.026451Z
Answers?rung 6 · live
passA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
- endpoints
{"declared":"https://agenthealthmonitor.xyz","elapsed_ms":5453,"final_url":"https://agenthealthmonitor.xyz/","http_statu… (487 chars — expand)
{"declared":"https://agenthealthmonitor.xyz","elapsed_ms":5453,"final_url":"https://agenthealthmonitor.xyz/","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://agenthealthmonitor.xyz"}, {"declared":"https://agenthealthmonitor.xyz","elapsed_ms":5453,"final_url":"https://agenthealthmonitor.xyz/","http_status":200,"index":1,"kind":"https","name":"x402","outcome":"live","probed":true,"probed_url":"https://agenthealthmonitor.xyz"}- endpoints_answered_not_live
- 0
- endpoints_declared
- 2
- endpoints_live
- 2
- endpoints_our_error
- 0
- 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
passAt least one on-chain feedback entry names this agent.
passed
- distinct_authors
- 1
- feedback_count
- 5
checked at 2026-10-07T09:34:22.026451Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 32328
- owner
- 0xb109a7297e80a6a4fd2518ba796fc898c2bd13ad
- block
- 52,281,733
- observed
- 2026-10-07T09:34:22.029440Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 711 bytes
- sha256
- 361db40a8cc54393eac9d2e8c4ff366a9bd9bb6f25b87327575574c81da565f9
- 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