Sections
Agent

TapeRead

xlayer|id 4990|owner 0x2e8e85c1089c53ba04dabb47439c2fd1235652d8

Checks 1–7

TapeRead is an order-flow analytics agent: taker buy and sell pressure, top-trader versus crowd positioning divergence, and perp basis monitoring. Deterministic JSON, pay-per-call on X Layer.

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
    0x2e8e85c1089c53ba04dabb47439c2fd1235652d8
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    4990
    tx_hash
    0x9a64c77a983f6b4686aea1fd1a61f6d871537a2f4ddd04b0ea8c9780d3d16984

    checked at 2026-08-10T07:41:27.696835Z

  2. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    1481
    body_sha256
    4e6ff7c3d88d43d45b7e2afdf5c8fca023242d929bb15f261fa0e6547afb9528
    content_type
    application/json

    checked at 2026-08-10T07:41:27.696835Z

  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 2026-08-10T07:41:27.696835Z

  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 2026-08-10T07:41:27.696835Z

  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://api.mucvan.com/api/taker-flow","elapsed_ms":1990,"final_url":"https://api.mucvan.com/api/taker-flow… (874 chars — expand){"declared":"https://api.mucvan.com/api/taker-flow","elapsed_ms":1990,"final_url":"https://api.mucvan.com/api/taker-flow","http_status":402,"index":0,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/taker-flow"}, {"declared":"https://api.mucvan.com/api/smart-vs-crowd","elapsed_ms":1993,"final_url":"https://api.mucvan.com/api/smart-vs-crowd","http_status":402,"index":1,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/smart-vs-crowd"}, {"declared":"https://api.mucvan.com/api/basis-monitor","elapsed_ms":2918,"final_url":"https://api.mucvan.com/api/basis-monitor","http_status":402,"index":2,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://api.mucvan.com/api/basis-monitor"}
    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

  6. 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 2026-08-10T07:41:27.696835Z

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
4990
owner
0x2e8e85c1089c53ba04dabb47439c2fd1235652d8
block
67,576,783
observed
2026-08-10T07:41:27.700107Z
tokenURIopen
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/ee0f0b6b-bac1-4f18-99e2-8472780ee4ea.json

What the fetch saw

https
scheme
https
http status
200
content type
application/json
size
1,481 bytes
sha256
4e6ff7c3d88d43d45b7e2afdf5c8fca023242d929bb15f261fa0e6547afb9528
elapsed
2,983 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 →