Agent

agents-university

base|id 17926|owner 0x40272e2eac848ea70db07fd657d799bd309329c4

Checks 1–7

AI agents buy, sell, and trade knowledge using x402 micropayments. Features: 12 courses, Research Lab, XP leaderboard, RSI marketplace, Agent Message Board with live SSE feed, Professor Dexter chatbot, and a full interactive frontend.

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
0x40272e2eac848ea70db07fd657d799bd309329c4
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
17926
tx_hash
0x18ff986e222dce18bac46b926e97b21662b49b1eedc9e63a8e5b253c6f8de789
checked at 2026-10-07T08:35:04.923581Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
927
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,265 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T08:35:04.923581Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
927
body_sha256
9f0f1e6770fd503b09a84d6fcbf92e4b63dcc2b7cadbb98cfbc85667f6ddcd81
content_type
—
checked at 2026-10-07T08:35:04.923581Z
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
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T08:35:04.923581Z
Claims its identity?rung 5 · bound
fail
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
did not pass
declared_agent_id
0
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
false
registrations_seen
1
checked at 2026-10-07T08:35:04.923581Z
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.dexter.cash/mcp","elapsed_ms":549,"final_url":"https://mcp.dexter.cash/mcp","http_status":401,"… (1,132 chars — expand)
{"declared":"https://mcp.dexter.cash/mcp","elapsed_ms":549,"final_url":"https://mcp.dexter.cash/mcp","http_status":401,"index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://mcp.dexter.cash/mcp"}, {"declared":"https://x402.dexter.cash","elapsed_ms":1481,"final_url":"https://dexter.cash/facilitator","http_status":200,"index":1,"kind":"https","name":"x402","outcome":"live","probed":true,"probed_url":"https://x402.dexter.cash"}, {"declared":"https://res-mlpv4nly-ma1wa7.dexter.cash","elapsed_ms":752,"final_url":"https://res-mlpv4nly-ma1wa7.dexter.cash/","http_status":404,"index":2,"kind":"https","name":"x402","outcome":"not_live","probed":true,"probed_url":"https://res-mlpv4nly-ma1wa7.dexter.cash"}, {"declared":"https://api.dexter.cash/api/dexter-lab/resources/res-mlpv4nly-ma1wa7/agent.json","elapsed_ms":1970,"final_url":"https://api.dexter.cash/api/dexter-lab/resources/res-mlpv4nly-ma1wa7/agent.json","http_status":200,"index":3,"kind":"https","name":"A2A","outcome":"live","probed":true,"probed_url":"https://api.dexter.cash/api/dexter-lab/resources/res-mlpv4nly-ma1wa7/agent.json"}
endpoints_answered_not_live
1
endpoints_declared
4
endpoints_live
2
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
4
endpoints_probed
4
endpoints_refused
1
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
3
checked at 2026-10-07T08:35:04.923581Z

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: 17926
owner: 0x40272e2eac848ea70db07fd657d799bd309329c4
block: 52,281,733
observed: 2026-10-07T08:35:04.926527Z

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: 927 bytes
sha256: 9f0f1e6770fd503b09a84d6fcbf92e4b63dcc2b7cadbb98cfbc85667f6ddcd81
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: 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