Agent

YieldAgentX402

base|id 21702|owner 0xc8b19839ae371bd541f20b15c3a3cb82bfb6a6c6

Checks 1–7

Governed DeFi intent and workflow interfaces. YieldAgent policy and required operator approvals define authority. Source includes partner-scoped solver, federation, cross-chain, and NEAR Cloud TEE evidence paths; runtime readiness, settlement, and TEE labels require request- and receipt-specific verification.

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
51072140
chain_id
8453
owner
0xc8b19839ae371bd541f20b15c3a3cb82bfb6a6c6
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
21702
tx_hash
0x3076af9433f0d3d5a1c5d1bfe54f01991ab0ea841d39a788af16be687c906d19
checked at 2026-09-09T09:38:55.055101Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
355
final_url
https://api.yieldagentx402.app/.well-known/agent-registration.json
http_status
200
request_url
https://api.yieldagentx402.app/.well-known/agent-registration.json
scheme
https
uri
https://api.yieldagentx402.app/.well-known/agent-registration.json
checked at 2026-09-09T09:38:55.055101Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
2387
body_sha256
41479699cbcdfdb78e5e4c73a9d365f3af5f74176f732c3be68793abc3d57ffd
content_type
application/json; charset=utf-8
checked at 2026-09-09T09:38:55.055101Z
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
active, supportedTrust
must_violations
(empty)
registrations_checked
1
services_field_source
services
services_status
present
should_gaps
image, services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-09T09:38:55.055101Z
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
21702
declared_chain
8453
declared_registry
eip155:8453:0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
match
true
registrations_seen
1
checked at 2026-09-09T09:38:55.055101Z
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://yieldagentx402.app/","elapsed_ms":307,"final_url":"https://yieldagentx402.app/","http_status":200,"… (2,303 chars — expand)
{"declared":"https://yieldagentx402.app/","elapsed_ms":307,"final_url":"https://yieldagentx402.app/","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://yieldagentx402.app/"}, {"declared":"https://api.yieldagentx402.app/.well-known/x402","elapsed_ms":601,"final_url":"https://api.yieldagentx402.app/.well-known/x402","http_status":200,"index":1,"kind":"https","name":"x402","outcome":"live","probed":true,"probed_url":"https://api.yieldagentx402.app/.well-known/x402"}, {"declared":"https://api.yieldagentx402.app","elapsed_ms":591,"final_url":"https://api.yieldagentx402.app/","http_status":200,"index":2,"kind":"https","name":"API","outcome":"live","probed":true,"probed_url":"https://api.yieldagentx402.app"}, {"declared":"https://api.yieldagentx402.app/.well-known/agent-registration.json","elapsed_ms":599,"final_url":"https://api.yieldagentx402.app/.well-known/agent-registration.json","http_status":200,"index":3,"kind":"https","name":"A2A","outcome":"live","probed":true,"probed_url":"https://api.yieldagentx402.app/.well-known/agent-registration.json"}, {"declared":"https://api.yieldagentx402.app/api/agents","elapsed_ms":0,"error":"robots_disallowed","index":4,"kind":"https","name":"agents","outcome":"refused","probed":true,"probed_url":"https://api.yieldagentx402.app/api/agents"}, {"declared":"https://api.yieldagentx402.app/api/reputation","elapsed_ms":0,"error":"robots_disallowed","index":5,"kind":"https","name":"reputation","outcome":"refused","probed":true,"probed_url":"https://api.yieldagentx402.app/api/reputation"}, {"declared":"https://api.yieldagentx402.app/api/yields","elapsed_ms":0,"error":"robots_disallowed","index":6,"kind":"https","name":"yields","outcome":"refused","probed":true,"probed_url":"https://api.yieldagentx402.app/api/yields"}, {"declared":"https://api.yieldagentx402.app/api/intents","elapsed_ms":0,"error":"robots_disallowed","index":7,"kind":"https","name":"intents","outcome":"refused","probed":true,"probed_url":"https://api.yieldagentx402.app/api/intents"}, {"declared":"https://api.yieldagentx402.app/api/tee/verify","elapsed_ms":0,"error":"robots_disallowed","index":8,"kind":"https","name":"tee","outcome":"refused","probed":true,"probed_url":"https://api.yieldagentx402.app/api/tee/verify"}
endpoints_answered_not_live
0
endpoints_declared
9
endpoints_live
4
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
9
endpoints_probed
9
endpoints_refused
5
checked at 2026-09-16T09:08:38.232333Z
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
2
feedback_count
17
checked at 2026-09-09T09:38:55.055101Z

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: 21702
owner: 0xc8b19839ae371bd541f20b15c3a3cb82bfb6a6c6
block: 51,072,140
observed: 2026-09-09T09:38:55.056637Z

tokenURIopen →

https://api.yieldagentx402.app/.well-known/agent-registration.json

What the fetch saw

https

scheme: https
request url: https://api.yieldagentx402.app/.well-known/agent-registration.json
final url: https://api.yieldagentx402.app/.well-known/agent-registration.json
http status: 200
content type: application/json; charset=utf-8
size: 2,387 bytes
sha256: 41479699cbcdfdb78e5e4c73a9d365f3af5f74176f732c3be68793abc3d57ffd
elapsed: 355 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: 794d7afd-90ab-4c17-90c9-57f8b48e7a3d
chain: base
pinned block: 51,072,140
agents: 85,673
started: 2026-09-09T06:00:28.568294Z
finished: 2026-09-16T08:47:01.599361Z
checker: 0.7.0 · 981910a8f7451ff11d8af05abef0cc7852e25953
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- base   # at block 51072140

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