Agent

VenueScan

xlayer|id 4537|owner 0x2e8e85c1089c53ba04dabb47439c2fd1235652d8

Checks 1–7

Trading-venue quality and execution data APIs: spot exchange rankings by trust score and volume, on-chain options venue volume rankings, and a live cross-exchange price check (Binance, OKX, Kraken, Coinbase) that flags the best buy and sell venue with price dispersion. Fast pay-per-call JSON for trading agents and routers.

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
67576783
chain_id
196
owner
0x2e8e85c1089c53ba04dabb47439c2fd1235652d8
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
4537
tx_hash
0xa451a29e983af8284a525d96bf328bad54bc5cc4262fb16ad1e19baa1533d4a6
checked at 2026-08-10T07:38:56.514785Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
2016
final_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json
http_status
200
request_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json
scheme
https
uri
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json
checked at 2026-08-10T07:38:56.514785Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1904
body_sha256
7c5d374c69c73c8918bbed3e456a38d7e0f9f86aa96cf85fe34fd61d7dcd444f
content_type
application/json
checked at 2026-08-10T07:38:56.514785Z
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
x402Support, active, supportedTrust
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-10T07:38:56.514785Z
Claims its identity?rung 5 · bound
unclaimed
The 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 2026-08-10T07:38:56.514785Z
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.mucvan.com/api/cex-rankings","elapsed_ms":1994,"final_url":"https://api.mucvan.com/api/cex-rank… (889 chars — expand)
{"declared":"https://api.mucvan.com/api/cex-rankings","elapsed_ms":1994,"final_url":"https://api.mucvan.com/api/cex-rankings","http_status":402,"index":0,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/cex-rankings"}, {"declared":"https://api.mucvan.com/api/options-volumes","elapsed_ms":1996,"final_url":"https://api.mucvan.com/api/options-volumes","http_status":402,"index":1,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/options-volumes"}, {"declared":"https://api.mucvan.com/api/cex-price-check","elapsed_ms":2002,"final_url":"https://api.mucvan.com/api/cex-price-check","http_status":402,"index":2,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/cex-price-check"}
endpoints_answered_not_live
0
endpoints_declared
3
endpoints_live
3
endpoints_our_error
0
endpoints_payment_gated
3
endpoints_probeable
3
endpoints_probed
3
endpoints_refused
0
checked at 2026-08-10T08:28:46.157805Z
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 2026-08-10T07:38:56.514785Z

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

xlayer

token id: 4537
owner: 0x2e8e85c1089c53ba04dabb47439c2fd1235652d8
block: 67,576,783
observed: 2026-08-10T07:38:56.517478Z

tokenURIopen →

https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json

What the fetch saw

https

scheme: https
request url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json
final url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ebe383c6-1c42-42a2-a9f9-f5aec54b3d6b.json
http status: 200
content type: application/json
size: 1,904 bytes
sha256: 7c5d374c69c73c8918bbed3e456a38d7e0f9f86aa96cf85fe34fd61d7dcd444f
elapsed: 2,016 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: ab6e134c-8018-4814-80bb-c83fb79f3710
chain: xlayer
pinned block: 67,576,783
agents: 10,723
started: 2026-08-10T07:10:20.176367Z
finished: 2026-08-10T08:11:41.005767Z
checker: 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- xlayer   # at block 67576783

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