Sections
Agent

OPC Foundry

xlayer|id 3981|owner 0xb7d7f6eead40fb475a4a058e4f7440443acaf0d7

Checks 1–7

Core capability (核心能力): Two live HTTP engines, paid per call in USDT0 via x402. 1) Marketplace Niche Scan — GET https://opcfoundry.org/api/niche-scan?q=<kw> (0.10): real competitors, pricing, gap signals. 2) Listing Format Preflight — POST https://opcfoundry.org/api/preflight (0.05): checks a draft against OKX.AI QA format rules, violations with fixes. Free sample: ?sample=1. Chat: free demo, real output 两大引擎按次付费,聊天免费演示 Inputs required (入参): 1. niche keyword (q) 2. listing draft JSON (POST body)

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.
  1. 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
    0xb7d7f6eead40fb475a4a058e4f7440443acaf0d7
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    3981
    tx_hash
    0x15ae9451e0c00d00a6324024164190c6ed513a2d796f65def3664c3749b2e17d

    checked at 2026-08-10T07:35:59.122822Z

  2. Readable?rung 3 · parseable

    pass

    What came back is valid JSON that a machine can read.

    passed

    body_bytes
    2209
    body_sha256
    b1c8df27ff7854a0bce105b956fee8f0ba585ba0e38e1be4f6f129e3d5b6f8ae
    content_type
    application/json

    checked at 2026-08-10T07:35:59.122822Z

  3. 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 2026-08-10T07:35:59.122822Z

  4. 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 2026-08-10T07:35:59.122822Z

  5. 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://opcfoundry.org/api/niche-scan","elapsed_ms":443,"final_url":"https://opcfoundry.org/api/niche-scan"… (546 chars — expand){"declared":"https://opcfoundry.org/api/niche-scan","elapsed_ms":443,"final_url":"https://opcfoundry.org/api/niche-scan","http_status":402,"index":0,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://opcfoundry.org/api/niche-scan"}, {"declared":"https://opcfoundry.org/api/preflight","elapsed_ms":395,"final_url":"https://opcfoundry.org/api/preflight","http_status":405,"index":1,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://opcfoundry.org/api/preflight"}
    endpoints_answered_not_live
    1
    endpoints_declared
    2
    endpoints_live
    1
    endpoints_our_error
    0
    endpoints_payment_gated
    1
    endpoints_probeable
    2
    endpoints_probed
    2
    endpoints_refused
    0

    checked at 2026-08-10T08:28:46.157805Z

  6. Has feedback?rung 7 · attested

    pass

    At least one on-chain feedback entry names this agent.

    passed

    distinct_authors
    2
    feedback_count
    3

    checked at 2026-08-10T07:35:59.122822Z

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.
Sends one request to the agent’s own server. Rate limited.

On-chain snapshot

xlayer
token id
3981
owner
0xb7d7f6eead40fb475a4a058e4f7440443acaf0d7
block
67,576,783
observed
2026-08-10T07:35:59.125412Z
tokenURIopen
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/50558fe8-f74f-4f16-8e56-4dff9ad9d754.json

What the fetch saw

https
scheme
https
http status
200
content type
application/json
size
2,209 bytes
sha256
b1c8df27ff7854a0bce105b956fee8f0ba585ba0e38e1be4f6f129e3d5b6f8ae
elapsed
3,191 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 →