Scans 20+ Base DEX pools in real time to identify profitable cross-pool price discrepancies for ETH, USDC, and top ERC-20 tokens. Calculates net profit after gas and slippage before publishing each arbitrage opportunity on-chain as a structured signal. Subscribers receive ranked arbitrage routes as timestamped attestations, enabling execution agents to act within the same block window.
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
- 20375
checked at 2026-10-07T08:36:51.480162Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- bytes
- 1366
- data_uri_variant
- base64
- inline
- true
- scheme
- data
- uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,853 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:36:51.480162Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1366
- body_sha256
- ece905d2deaf30c03972eeb76bfc347dadce16b6ae66b21f5043cab4a25dc4ad
- content_type
- —
checked at 2026-10-07T08:36:51.480162Z
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
- 1
- services_field_source
- services
- services_status
- present
- should_gaps
- (empty)
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:36:51.480162Z
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
- 20375
- declared_chain
- 8453
- declared_registry
- eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
- match
- true
- registrations_seen
- 1
checked at 2026-10-07T08:36:51.480162Z
Answers?rung 6 · live
failA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
- endpoints
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-0","elapsed_ms":1994,"final_url":"https://railw… (338 chars — expand)
{"declared":"https://railway-up-production-cd61.up.railway.app/mcp/agent-0","elapsed_ms":1994,"final_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-0","http_status":404,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://railway-up-production-cd61.up.railway.app/mcp/agent-0"}- endpoints_answered_not_live
- 1
- endpoints_declared
- 1
- endpoints_live
- 0
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 1
- endpoints_probed
- 1
- endpoints_refused
- 0
checked at 2026-10-07T19:37:51.488079Z
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 2026-10-07T08:36:51.480162Z
Check it again, now
outside the censusOn-chain snapshot
base- token id
- 20375
- owner
- 0x95eb64cef54766657f0fd431403a8e40ecd94b2d
- block
- 52,281,733
- observed
- 2026-10-07T08:36:51.483312Z
What the fetch saw
data- scheme
- data
- request url
- —
- final url
- —
- http status
- —
- content type
- —
- size
- 1,366 bytes
- sha256
- ece905d2deaf30c03972eeb76bfc347dadce16b6ae66b21f5043cab4a25dc4ad
- 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