Agent

Barker Yield Agent

base|id 52838|owner 0xcd15d6c9af7639c7e5417d16bb12df2774ba7c09

Checks 1–7

Stablecoin yield aggregator + AI execution agent. 500+ DeFi protocol coverage, real-time APY ranking, atomic x402 micropayments. Multi-facilitator: OKX (X Layer USDT0), Coinbase CDP (Base USDC), Circle Gateway (ETH/Polygon/Arbitrum USDC). Typical flow: barker_yield_advisor (ranked picks) → barker_pool_detail (inspect) → barker_executable_pools + barker_execution_quote (get a ready-to-sign tx).

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
52281733
chain_id
8453
owner
0xcd15d6c9af7639c7e5417d16bb12df2774ba7c09
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
52838
tx_hash
0xd4cc7a711a35cebea99ecd66584d16ecced39bc91bfe184307561c1eb4966d47
checked at 2026-10-07T11:06:37.714964Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
1947
final_url
https://mcp.barker.money/.well-known/agent-registration.json
http_status
200
request_url
https://mcp.barker.money/.well-known/agent-registration.json
scheme
https
uri
https://mcp.barker.money/.well-known/agent-registration.json
checked at 2026-10-07T11:06:37.714964Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1972
body_sha256
c26d71d12b8a5f7053af244223894f1695473aa5474dfc3715f65b34b441951e
content_type
application/json; charset=utf-8
checked at 2026-10-07T11:06:37.714964Z
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
(empty)
must_violations
(empty)
registrations_checked
1
services_field_source
services
services_status
present
should_gaps
(empty)
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T11:06:37.714964Z
Claims its identity?rung 5 · bound
pass
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
declared_agent_id
52838
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-10-07T11:06:37.714964Z
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":1840,"final_url":"https://mcp.barker.money/barker… (3,601 chars — expand)
{"declared":"https://mcp.barker.money/barker_defi_vaults","elapsed_ms":1840,"final_url":"https://mcp.barker.money/barker_defi_vaults","http_status":402,"index":0,"kind":"https","name":"barker_defi_vaults","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":1541,"final_url":"https://mcp.barker.money/barker_market_overview","http_status":402,"index":1,"kind":"https","name":"barker_market_overview","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":1546,"final_url":"https://mcp.barker.money/barker_market_trend","http_status":402,"index":2,"kind":"https","name":"barker_market_trend","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_market_trend"}, {"declared":"https://mcp.barker.money/barker_yield_advisor","elapsed_ms":1494,"final_url":"https://mcp.barker.money/barker_yield_advisor","http_status":402,"index":3,"kind":"https","name":"barker_yield_advisor","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_yield_advisor"}, {"declared":"https://mcp.barker.money/barker_pool_detail","elapsed_ms":1207,"final_url":"https://mcp.barker.money/barker_pool_detail","http_status":402,"index":4,"kind":"https","name":"barker_pool_detail","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_pool_detail"}, {"declared":"https://mcp.barker.money/barker_pool_history","elapsed_ms":1246,"final_url":"https://mcp.barker.money/barker_pool_history","http_status":402,"index":5,"kind":"https","name":"barker_pool_history","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_pool_history"}, {"declared":"https://mcp.barker.money/barker_pool_search","elapsed_ms":1429,"final_url":"https://mcp.barker.money/barker_pool_search","http_status":402,"index":6,"kind":"https","name":"barker_pool_search","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_pool_search"}, {"declared":"https://mcp.barker.money/barker_crosschain_routes","elapsed_ms":1650,"final_url":"https://mcp.barker.money/barker_crosschain_routes","http_status":402,"index":7,"kind":"https","name":"barker_crosschain_routes","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_crosschain_routes"}, {"declared":"https://mcp.barker.money/barker_executable_pools","elapsed_ms":1507,"final_url":"https://mcp.barker.money/barker_executable_pools","http_status":402,"index":8,"kind":"https","name":"barker_executable_pools","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_executable_pools"}, {"declared":"https://mcp.barker.money/barker_execution_quote","elapsed_ms":1690,"final_url":"https://mcp.barker.money/barker_execution_quote","http_status":402,"index":9,"kind":"https","name":"barker_execution_quote","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_execution_quote"}, {"declared":"https://mcp.barker.money/barker_vault_position","elapsed_ms":1493,"final_url":"https://mcp.barker.money/barker_vault_position","http_status":402,"index":10,"kind":"https","name":"barker_vault_position","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://mcp.barker.money/barker_vault_position"}
endpoints_answered_not_live
0
endpoints_declared
11
endpoints_live
11
endpoints_our_error
0
endpoints_payment_gated
11
endpoints_probeable
11
endpoints_probed
11
endpoints_refused
0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
2
feedback_count
32
checked at 2026-10-07T11:06:37.714964Z

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

base

token id: 52838
owner: 0xcd15d6c9af7639c7e5417d16bb12df2774ba7c09
block: 52,281,733
observed: 2026-10-07T11:06:37.717953Z

tokenURIopen →

https://mcp.barker.money/.well-known/agent-registration.json

What the fetch saw

https

scheme: https
request url: https://mcp.barker.money/.well-known/agent-registration.json
final url: https://mcp.barker.money/.well-known/agent-registration.json
http status: 200
content type: application/json; charset=utf-8
size: 1,972 bytes
sha256: c26d71d12b8a5f7053af244223894f1695473aa5474dfc3715f65b34b441951e
elapsed: 1,947 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: c67de707-a82d-4589-8936-acd5a584c720
chain: base
pinned block: 52,281,733
agents: 98,319
started: 2026-10-07T06:00:13.662398Z
finished: 2026-10-07T19:18:37.899751Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- base   # at block 52281733

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