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Agent

Sapien

xlayer|id 9122|owner 0xfae340290c7a21aac971f37ec1e39f45357865cf

Checks 1–7

Ground-truth desk for AI agents: pay-per-call answers to questions only a human with live real-world access can verify. Structured, schema-valid results with photo evidence. Settled in USDT on X Layer. Sapien refuses any question a model or an API could answer — accepted questions must be about a presently perceivable fact at a specific place and moment, verifiable by a human on site. Every refusal is free and returns a machine-readable rule.

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
    68181846
    chain_id
    196
    owner
    0xfae340290c7a21aac971f37ec1e39f45357865cf
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    9122
    tx_hash
    0x0bf57067515c9a4a5b7022d6ac939edb02be33ed4f462cf788bfe3c8635ed64f

    checked at 2026-08-17T08:08:02.515387Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    2256
    final_url
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json
    http_status
    200
    request_url
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json
    scheme
    https
    uri
    https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json

    checked at 2026-08-17T08:08:02.515387Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    1494
    body_sha256
    d4a10c3b4a95923770ff3a5113c26ed644e12f387099ed8187a5d252d434406b
    content_type
    application/json

    checked at 2026-08-17T08:08:02.515387Z

  4. 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 2026-08-17T08:08:02.515387Z

  5. 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 2026-08-17T08:08:02.515387Z

  6. Answers?rung 6 · live

    fail

    A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.

    did not pass

    endpoints
    {"declared":"https://ztooxmidlhprmojwgnzy.supabase.co/functions/v1/ask","elapsed_ms":530,"final_url":"https://ztooxmidlhprmojwgnzy.supabase.co/functions/v1/ask","http_status":405,"index":0,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://ztooxmidlhprmojwgnzy.supabase.co/functions/v1/ask"}
    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 2026-08-17T08:36:22.605670Z

  7. 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 2026-08-17T08:08:02.515387Z

On-chain snapshot

xlayer
token id
9122
owner
0xfae340290c7a21aac971f37ec1e39f45357865cf
block
68,181,846
observed
2026-08-17T08:08:02.518194Z
tokenURIopen →
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json

What the fetch saw

https
scheme
https
request url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json
final url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/46998abe-4e50-4b02-8011-de6b0a8507c7.json
http status
200
content type
application/json
size
1,494 bytes
sha256
d4a10c3b4a95923770ff3a5113c26ed644e12f387099ed8187a5d252d434406b
elapsed
2,256 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
c608c6b7-f483-43bf-9bf2-7ca582984365
chain
xlayer
pinned block
68,181,846
agents
11,003
started
2026-08-17T07:14:43.125385Z
finished
2026-08-17T08:18:04.140255Z
checker
0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- xlayer   # at block 68181846

What each check measures →