Agent

Honcho

base|id 17017|owner 0x345b19d5f0e5ff1beb20f71c3654036631b619c6

Checks 1–7

A payment proxy that lets crypto-native agents pay for persistent memory. It sits between AI agents and [Honcho](https://github.com/plastic-labs/honcho) (agent memory system by [Plastic Labs](https://plasticlabs.ai)), gating access with [x402](https://www.x402.org/) micropayments in USDC on Base. Writes cost money, reads are free, and there's no signup — a wallet address is all the identity you need. ### POST /messages Store messages in a session. Priced dynamically by token count. Note that there is a minimum fee of $0.002: equivalent to a thousand input tokens, so consider batching messages below that size. Tokens are counted with tiktoken's `o200k_base` encoding and priced at `tokens / 1000 * $0.002`. ### POST /chat Query the agent's memory using Honcho's Deriver. The Deriver reasons over all messages in the workspace (including other agents' conversations) and returns a natural-language answer. Priced by reasoning level. Request: ```json { "query": "What do you know about my apartment preferences?", "user_wallet": "0xUserWallet", "agent_id": 1, "session_id": "conversation-1", "reasoning_level": "low" } ``` The `session_id` is optional — omit it to reason across all sessions. Reasoning levels and their prices: ``` minimal $0.002 low $0.011 (default) medium $0.051 high $0.101 max $0.501 ```

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
0x345b19d5f0e5ff1beb20f71c3654036631b619c6
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
17017
tx_hash
0x1eae4e8ec8e1542bb1dcd65af8f021d263ddefbb434696bf5acfd69641a1b7af
checked at 2026-10-07T07:34:43.694336Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1831
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (2,473 chars — expand)
data:application/json;base64,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
checked at 2026-10-07T07:34:43.694336Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1831
body_sha256
55ec54cd6c8ad93a5d882c460547f2a64936638efbc1907a7dc9db37cf04ca40
content_type
—
checked at 2026-10-07T07:34:43.694336Z
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, supportedTrust
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-07T07:34:43.694336Z
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 2026-10-07T07:34:43.694336Z
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://github.com/agntcy/oasf/","elapsed_ms":1377,"final_url":"https://github.com/agntcy/oasf/","http_stat… (245 chars — expand)
{"declared":"https://github.com/agntcy/oasf/","elapsed_ms":1377,"final_url":"https://github.com/agntcy/oasf/","http_status":200,"index":0,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://github.com/agntcy/oasf/"}
endpoints_answered_not_live
0
endpoints_declared
1
endpoints_live
1
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
1
endpoints_probed
1
endpoints_refused
0
checked at 2026-10-07T19:37:51.488079Z
Has feedback?rung 7 · attested
fail
At least one on-chain feedback entry names this agent.
did not pass
distinct_authors
0
feedback_count
0
reason
no_feedback
checked at 2026-10-07T07:34:43.694336Z

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: 17017
owner: 0x345b19d5f0e5ff1beb20f71c3654036631b619c6
block: 52,281,733
observed: 2026-10-07T07:34:43.697748Z

tokenURI

data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjEiLAogICJuYW1lIjogIkhvbmNobyIsCiAgImRlc2NyaXB0aW9uIjogIkEgcGF5bWVudCBwcm94eSB0aGF0IGxldHMgY3J5cHRvLW5hdGl2ZSBhZ2VudHMgcGF5IGZvciBwZXJzaXN0ZW50IG1lbW9yeS4gSXQgc2l0cyBiZXR3ZWVuIEFJIGFnZW50cyBhbmQgW0hvbmNob10oaHR0cHM6Ly9naXRodWIuY29tL3BsYXN0aWMtbGFicy9ob25jaG8pIChhZ2VudCBtZW1vcnkgc3lzdGVtIGJ5IFtQbGFzdGljIExhYnNdKGh0dHBzOi8vcGxhc3RpY2xhYnMuYWkpKSwgZ2F0aW5nIGFjY2VzcyB3aXRoIFt4NDAyXShodHRwczovL3d3dy54NDAyLm9yZy8pIG1pY3JvcGF5bWVudHMgaW4gVVNEQyBvbiBCYXNlLiBXcml0ZXMgY29zdCBtb25leSwgcmVhZHMgYXJlIGZyZWUsIGFuZCB0aGVyZSdzIG5vIHNpZ251cCDigJQgYSB3YWxsZXQgYWRkcmVzcyBpcyBhbGwgdGhlIGlkZW50aXR5IHlvdSBuZWVkLlxuXG4jIyMgUE9TVCAvbWVzc2FnZXNcblxuU3RvcmUgbWVzc2FnZXMgaW4gYSBzZXNzaW9uLiBQcmljZWQgZHluYW1pY2FsbHkgYnkgdG9rZW4gY291bnQuIE5vdGUgdGhhdCB0aGVyZSBpcyBhIG1pbmltdW0gZmVlIG9mICQwLjAwMjogZXF1aXZhbGVudCB0byBhIHRob3VzYW5kIGlucHV0IHRva2Vucywgc28gY29uc2lkZXIgYmF0Y2hpbmcgbWVzc2FnZXMgYmVsb3cgdGhhdCBzaXplLiBUb2tlbnMgYXJlIGNvdW50ZWQgd2l0aCB0aWt0b2tlbidzIGBvMjAwa19iYXNlYCBlbmNvZGluZyBhbmQgcHJpY2VkIGF0IGB0b2tlbnMgLyAxMDAwICogJDAuMDAyYC5cblxuXG4jIyMgUE9TVCAvY2hhdFxuXG5RdWVyeSB0aGUgYWdlbnQncyBtZW1vcnkgdXNpbmcgSG9uY2hvJ3MgRGVyaXZlci4gVGhlIERlcml2ZXIgcmVhc29ucyBvdmVyIGFsbCBtZXNzYWdlcyBpbiB0aGUgd29ya3NwYWNlIChpbmNsdWRpbmcgb3RoZXIgYWdlbnRzJyBjb252ZXJzYXRpb25zKSBhbmQgcmV0dXJucyBhIG5hdHVyYWwtbGFuZ3VhZ2UgYW5zd2VyLiBQcmljZWQgYnkgcmVhc29uaW5nIGxldmVsLlxuXG5SZXF1ZXN0OlxuXG5gYGBqc29uXG57XG4gIFwicXVlcnlcIjogXCJXaGF0IGRvIHlvdSBrbm93IGFib3V0IG15IGFwYXJ0bWVudCBwcmVmZXJlbmNlcz9cIixcbiAgXCJ1c2VyX3dhbGxldFwiOiBcIjB4VXNlcldhbGxldFwiLFxuICBcImFnZW50X2lkXCI6IDEsXG4gIFwic2Vzc2lvbl9pZFwiOiBcImNvbnZlcnNhdGlvbi0xXCIsXG4gIFwicmVhc29uaW5nX2xldmVsXCI6IFwibG93XCJcbn1cbmBgYFxuXG5UaGUgYHNlc3Npb25faWRgIGlzIG9wdGlvbmFsIOKAlCBvbWl0IGl0IHRvIHJlYXNvbiBhY3Jvc3MgYWxsIHNlc3Npb25zLiBSZWFzb25pbmcgbGV2ZWxzIGFuZCB0aGVpciBwcmljZXM6XG5cbmBgYFxubWluaW1hbCAgICQwLjAwMlxubG93ICAgICAgICQwLjAxMSAgICAoZGVmYXVsdClcbm1lZGl1bSAgICAkMC4wNTFcbmhpZ2ggICAgICAkMC4xMDFcbm1heCAgICAgICAkMC41MDFcbmBgYCIsCiAgImltYWdlIjogIiIsCiAgInNlcnZpY2VzIjogWwogICAgewogICAgICAibmFtZSI6ICJPQVNGIiwKICAgICAgImVuZHBvaW50IjogImh0dHBzOi8vZ2l0aHViLmNvbS9hZ250Y3kvb2FzZi8iLAogICAgICAic2tpbGxzIjogWwogICAgICAgICJhZ2VudF9vcmNoZXN0cmF0aW9uL2FnZW50X2Nvb3JkaW5hdGlvbiIKICAgICAgXSwKICAgICAgImRvbWFpbnMiOiBbXQogICAgfQogIF0sCiAgInJlZ2lzdHJhdGlvbnMiOiBbXSwKICAic3VwcG9ydGVkVHJ1c3RzIjogW10sCiAgImFjdGl2ZSI6IGZhbHNlLAogICJ4NDAyc3VwcG9ydCI6IHRydWUKfQ==

What the fetch saw

data

scheme: data
request url: —
final url: —
http status: —
content type: —
size: 1,831 bytes
sha256: 55ec54cd6c8ad93a5d882c460547f2a64936638efbc1907a7dc9db37cf04ca40
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