Agent

x402 facilitator (Celo)

celo|id 9863|owner 0x1724707c52de2fa65ad9c586b5d38507f52d3c06

Checks 1–7

A hosted x402 payment facilitator for the Celo network. Verifies a buyer's signed stablecoin payment authorization off-chain and settles it on-chain, paying the gas itself. Never custodies funds. Endpoints: POST https://api.x402.celo.org/verify (open), POST https://api.x402.celo.org/settle (API key), GET https://api.x402.celo.org/supported. Integration guide: https://x402.celo.org/skill.md

Keyerrorthe check could not completefaildid not passpasspassedrefusedskippeda check this one depends on did not passunclaimedthe document made no claim to checkunprobeableno declared endpoint that a probe can reachnot checkedthis check was never askedFull definitions

The seven checks, with their evidence

7 recorded

Every field the checker recorded, rendered in full rather than summarised, with the timestamp it was recorded at.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
79282391
chain_id
42220
owner
0x1724707c52de2fa65ad9c586b5d38507f52d3c06
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
9863
tx_hash
0x8467f7925dfa7f5bb78da3c607a27063ff802c4f5ff826c03dd4d9e0714405d7
checked at 2026-10-05T07:24:47.018178Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
513
final_url
https://api.x402.celo.org/.well-known/agent-registration.json
http_status
200
request_url
https://api.x402.celo.org/.well-known/agent-registration.json
scheme
https
uri
https://api.x402.celo.org/.well-known/agent-registration.json
checked at 2026-10-05T07:24:47.018178Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1027
body_sha256
cd2792863f19aa19f199ef4e25ab38823456a7cbd8221a162383acfd4c0132c4
content_type
application/json
checked at 2026-10-05T07:24:47.018178Z
Follows the spec?rung 4 · conformant
pass
The 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 2026-10-05T07:24:47.018178Z
Claims its identity?rung 5 · bound
pass
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
declared_agent_id
9863
declared_chain
42220
declared_registry
eip155:42220:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-10-05T07:24:47.018178Z
Answers?rung 6 · live
pass
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
endpoints
{"declared":"https://api.x402.celo.org/","elapsed_ms":476,"final_url":"https://api.x402.celo.org/","http_status":200,"in… (737 chars — expand)
{"declared":"https://api.x402.celo.org/","elapsed_ms":476,"final_url":"https://api.x402.celo.org/","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://api.x402.celo.org/"}, {"declared":"https://api.x402.celo.org/supported","elapsed_ms":940,"final_url":"https://api.x402.celo.org/supported","http_status":200,"index":1,"kind":"https","name":"x402-facilitator","outcome":"live","probed":true,"probed_url":"https://api.x402.celo.org/supported"}, {"declared":"https://api.x402.celo.org/mcp","elapsed_ms":756,"final_url":"https://api.x402.celo.org/mcp","http_status":200,"index":2,"kind":"https","name":"MCP","outcome":"live","probed":true,"probed_url":"https://api.x402.celo.org/mcp"}
endpoints_answered_not_live
0
endpoints_declared
3
endpoints_live
3
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
3
endpoints_probed
3
endpoints_refused
0
checked at 2026-10-05T07:31:54.600744Z
Has feedback?rung 7 · attested
fail
At least one on-chain feedback entry names this agent.
did not pass
distinct_authors
0
feedback_count
0
reason
no_feedback
checked at 2026-10-05T07:24:47.018178Z

Check it again, now

outside the census

Everything above is one sweep, pinned to one block. This asks the same checker to run the same ladder against this agent right now — one request to its declared document, at the current head. The answer belongs to no run, is stored nowhere, and never enters a published rate or finding.

On-chain snapshot

celo

token id: 9863
owner: 0x1724707c52de2fa65ad9c586b5d38507f52d3c06
block: 79,282,391
observed: 2026-10-05T07:24:47.021611Z

tokenURIopen →

https://api.x402.celo.org/.well-known/agent-registration.json

What the fetch saw

https

scheme: https
request url: https://api.x402.celo.org/.well-known/agent-registration.json
final url: https://api.x402.celo.org/.well-known/agent-registration.json
http status: 200
content type: application/json
size: 1,027 bytes
sha256: cd2792863f19aa19f199ef4e25ab38823456a7cbd8221a162383acfd4c0132c4
elapsed: 513 ms

This run

reproducible

Every status above is scoped to this sweep, at this block. Rerun it and you should get these answers back.

run: 51518bd2-6305-4b27-a769-cf957aba00f4
chain: celo
pinned block: 79,282,391
agents: 9,878
started: 2026-10-05T06:52:29.184815Z
finished: 2026-10-05T07:30:46.088420Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- celo   # at block 79282391

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

Check it again, now

On-chain snapshot

What the fetch saw

This run