Agent

Barker Yield Agent

xlayer|id 2012|owner 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f

Checks 1–7

The stablecoin yield primitive for the agent economy — real-time stablecoin yield index, AI yield advisor, plan execution and risk signals, priced per call.

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
0x83f15f5bea445109e255ab82622fbdfecd1e4c9f
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
2012
tx_hash
0x30d23e4f27a34c15dec09da18e74e1b636a9608d44c2cc5204c449dc5cb5f160
checked at 2026-09-29T02:16:43.648261Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
2495
final_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json
http_status
200
request_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json
scheme
https
uri
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json
checked at 2026-09-29T02:16:43.648261Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
5289
body_sha256
b48c99839b902628e21808afaf77bf39cd38c50f0f3940a27f56e27fe8b4d48b
content_type
application/json
checked at 2026-09-29T02:16:43.648261Z
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 2026-09-29T02:16:43.648261Z
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 2026-09-29T02:16:43.648261Z
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://mcp.barker.money/barker_defi_vaults","elapsed_ms":1766,"final_url":"https://mcp.barker.money/barker… (3,012 chars — expand)
{"declared":"https://mcp.barker.money/barker_defi_vaults","elapsed_ms":1766,"final_url":"https://mcp.barker.money/barker_defi_vaults","http_status":402,"index":0,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_defi_vaults"}, {"declared":"https://mcp.barker.money/barker_market_overview","elapsed_ms":1812,"final_url":"https://mcp.barker.money/barker_market_overview","http_status":402,"index":1,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_market_overview"}, {"declared":"https://mcp.barker.money/barker_market_trend","elapsed_ms":1979,"final_url":"https://mcp.barker.money/barker_market_trend","http_status":402,"index":2,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_market_trend"}, {"declared":"https://mcp.barker.money/barker_pool_search","elapsed_ms":1418,"final_url":"https://mcp.barker.money/barker_pool_search","http_status":400,"index":3,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.barker.money/barker_pool_search"}, {"declared":"https://mcp.barker.money/barker_pool_detail","elapsed_ms":1204,"final_url":"https://mcp.barker.money/barker_pool_detail","http_status":400,"index":4,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.barker.money/barker_pool_detail"}, {"declared":"https://mcp.barker.money/barker_pool_history","elapsed_ms":1244,"final_url":"https://mcp.barker.money/barker_pool_history","http_status":400,"index":5,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.barker.money/barker_pool_history"}, {"declared":"https://mcp.barker.money/barker_crosschain_routes","elapsed_ms":1636,"final_url":"https://mcp.barker.money/barker_crosschain_routes","http_status":400,"index":6,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.barker.money/barker_crosschain_routes"}, {"declared":"https://mcp.barker.money/barker_executable_pools","elapsed_ms":1580,"final_url":"https://mcp.barker.money/barker_executable_pools","http_status":402,"index":7,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_executable_pools"}, {"declared":"https://mcp.barker.money/barker_yield_advisor","elapsed_ms":1497,"final_url":"https://mcp.barker.money/barker_yield_advisor","http_status":402,"index":8,"kind":"https","name":"MCP","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_yield_advisor"}, {"declared":"https://mcp.barker.money/barker_execution_quote","elapsed_ms":1671,"final_url":"https://mcp.barker.money/barker_execution_quote","http_status":400,"index":9,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp.barker.money/barker_execution_quote"}
endpoints_answered_not_live
5
endpoints_declared
10
endpoints_live
5
endpoints_our_error
0
endpoints_payment_gated
5
endpoints_probeable
10
endpoints_probed
10
endpoints_refused
0
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
8
feedback_count
29
checked at 2026-09-29T02:16:43.648261Z

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: 2012
owner: 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f
block: 71,878,118
observed: 2026-09-29T02:16:43.651219Z

tokenURIopen →

https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json

What the fetch saw

https

scheme: https
request url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json
final url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/8ee6dd15-5a9d-477a-9c7a-20c920945964.json
http status: 200
content type: application/json
size: 5,289 bytes
sha256: b48c99839b902628e21808afaf77bf39cd38c50f0f3940a27f56e27fe8b4d48b
elapsed: 2,495 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