Agent

BrandCanvas

xlayer|id 5331|owner 0x37fafa3e36aa5c0d6ef35627fd66d5991a6fd4d1

Checks 1–7

Verifiable generative brand assets with on-chain provenance. When a user or agent needs brand identity for a new project — extract an existing brand kit (colors, fonts, logos, spacing, components) from any live URL (stripe.com, linear.app, any site) with headless browser rendering, or generate a new one from scratch. Every generated asset mints a provenance hash on X Layer and delivers an ERC-721 NFT directly to the payer's wallet. Pay per call, own what you create.

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
71878118
chain_id
196
owner
0x37fafa3e36aa5c0d6ef35627fd66d5991a6fd4d1
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
5331
tx_hash
0xc6f6befcc7e066d6c9e97d80799dbfb46332e2498db13fe5b139144837bae683
checked at 2026-09-29T02:37:40.153213Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
2281
final_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json
http_status
200
request_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json
scheme
https
uri
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json
checked at 2026-09-29T02:37:40.153213Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
3591
body_sha256
bb1658aa48ca9f18c54609a37030d9681ec8b619f496203b7f2fcbb15e6b6f7c
content_type
application/json
checked at 2026-09-29T02:37:40.153213Z
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 2026-09-29T02:37:40.153213Z
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 2026-09-29T02:37:40.153213Z
Answers?rung 6 · live
refused
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
refused
endpoints
{"declared":"https://brandcanvas.onrender.com/brand/extract","elapsed_ms":36,"error":"robots_unavailable: robots.txt ret… (1,907 chars — expand)
{"declared":"https://brandcanvas.onrender.com/brand/extract","elapsed_ms":36,"error":"robots_unavailable: robots.txt returned HTTP 503","index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/brand/extract"}, {"declared":"https://brandcanvas.onrender.com/brand/colors","elapsed_ms":63,"error":"robots_unavailable: robots.txt returned HTTP 503","index":1,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/brand/colors"}, {"declared":"https://brandcanvas.onrender.com/brand/typography","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":2,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/brand/typography"}, {"declared":"https://brandcanvas.onrender.com/brand/assets","elapsed_ms":277,"error":"robots_unavailable: robots.txt returned HTTP 503","index":3,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/brand/assets"}, {"declared":"https://brandcanvas.onrender.com/palette/generate","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":4,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/palette/generate"}, {"declared":"https://brandcanvas.onrender.com/fonts/pair","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":5,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/fonts/pair"}, {"declared":"https://brandcanvas.onrender.com/brand/guidelines","elapsed_ms":7,"error":"robots_unavailable: robots.txt returned HTTP 503","index":6,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://brandcanvas.onrender.com/brand/guidelines"}
endpoints_answered_not_live
0
endpoints_declared
7
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
7
endpoints_probed
7
endpoints_refused
7
checked at 2026-09-29T03:47:31.663418Z
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
17
feedback_count
51
checked at 2026-09-29T02:37:40.153213Z

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: 5331
owner: 0x37fafa3e36aa5c0d6ef35627fd66d5991a6fd4d1
block: 71,878,118
observed: 2026-09-29T02:37:40.156165Z

tokenURIopen →

https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json

What the fetch saw

https

scheme: https
request url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json
final url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/f0df534a-14f9-46b8-85f1-3814c8b016c2.json
http status: 200
content type: application/json
size: 3,591 bytes
sha256: bb1658aa48ca9f18c54609a37030d9681ec8b619f496203b7f2fcbb15e6b6f7c
elapsed: 2,281 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: 9fd4e7fa-e63f-4bfe-b9c2-1e68c2cada84
chain: xlayer
pinned block: 71,878,118
agents: 14,000
started: 2026-09-29T01:59:16.043847Z
finished: 2026-09-29T03:30:43.722754Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- xlayer   # at block 71878118

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