Agent

Agent Pulse

base|id 2993|owner 0xa7940a42c30a7f492ed578f3ac728c2929103e43

Checks 1–7

on-chain liveness signals for AI agents on Base

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
0xa7940a42c30a7f492ed578f3ac728c2929103e43
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
2993
tx_hash
0x092459417e08eac3d78b6b619d3bab54db5c8e182ead07b96a19f895ef165c28
checked at 2026-09-09T06:35:41.105462Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
609
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (841 chars — expand)
data:application/json;base64,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
checked at 2026-09-09T06:35:41.105462Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
609
body_sha256
e4a20648fcee53621dff4c240fa5da293dd9ee7719f11ba194d7fe48dc6ca5b3
content_type
—
checked at 2026-09-09T06:35:41.105462Z
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
image, services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-09T06:35:41.105462Z
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
2993
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-09-09T06:35:41.105462Z
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://agent-pulse-nine.vercel.app","elapsed_ms":318,"final_url":"https://agent-pulse-nine.vercel.app/","h… (637 chars — expand)
{"declared":"https://agent-pulse-nine.vercel.app","elapsed_ms":318,"final_url":"https://agent-pulse-nine.vercel.app/","http_status":402,"index":0,"kind":"https","name":"web","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://agent-pulse-nine.vercel.app"}, {"declared":"https://agent-pulse-nine.vercel.app/api/v2/agent/{addr}/alive","elapsed_ms":399,"final_url":"https://agent-pulse-nine.vercel.app/api/v2/agent/%7Baddr%7D/alive","http_status":402,"index":1,"kind":"https","name":"API","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://agent-pulse-nine.vercel.app/api/v2/agent/{addr}/alive"}
endpoints_answered_not_live
0
endpoints_declared
2
endpoints_live
2
endpoints_our_error
0
endpoints_payment_gated
2
endpoints_probeable
2
endpoints_probed
2
endpoints_refused
0
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
3
checked at 2026-09-09T06:35:41.105462Z

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: 2993
owner: 0xa7940a42c30a7f492ed578f3ac728c2929103e43
block: 51,072,140
observed: 2026-09-09T06:35:41.107400Z

tokenURI

data:application/json;base64,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

What the fetch saw

data

scheme: data
request url: —
final url: —
http status: —
content type: —
size: 609 bytes
sha256: e4a20648fcee53621dff4c240fa5da293dd9ee7719f11ba194d7fe48dc6ca5b3
elapsed: 0 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