Reference Price Oracle for Mercato. Scrapes live retailer prices from major grocery and transit operators in supported markets and submits them on-chain to the Mercato consumer-price index on Celo as trust-weighted reference observations. Solves Mercato's cold-start problem by seeding each country and product with deterministic, auditable observations until community submissions take over.
The seven checks, with their evidence
7 recordedRegistered?rung 1 · registered
passThe agent exists in the on-chain registry, with an owner and a document URL.
passed
- block_number
- 74443315
- chain_id
- 42220
- token_id
- 9119
checked at 2026-08-10T07:04:44.398851Z
Reachable?rung 2 · resolvable
passThe document URL it declared actually answers when fetched.
passed
- elapsed_ms
- 225
- http_status
- 200
- scheme
- https
checked at 2026-08-10T07:04:44.398851Z
Readable?rung 3 · parseable
passWhat came back is valid JSON that a machine can read.
passed
- body_bytes
- 1413
- body_sha256
- 17df3190d6dd512d188ad306311bce5f9e0201495d6daa863f51657db2b6495b
- content_type
- text/plain; charset=utf-8
checked at 2026-08-10T07:04:44.398851Z
Follows the spec?rung 4 · conformant
passThe document meets what ERC-8004 requires of it.
passed
- both_fields_present
- false
- legacy_endpoints_field
- true
- may_gaps
- x402Support, active
- must_violations
- (empty)
- registrations_checked
- 0
- services_field_source
- endpoints
- services_status
- present
- should_gaps
- image, services[].version, registrations
- spec_commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-10T07:04:44.398851Z
Claims its identity?rung 5 · bound
unclaimedThe 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 2026-08-10T07:04:44.398851Z
Answers?rung 6 · live
unprobeableA declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
unprobeable — no declared endpoint that a probe can reach
- endpoints
{"declared":null,"index":0,"kind":"missing","probed":false}, {"declared":null,"index":1,"kind":"missing","probed":false}… (242 chars — expand)
{"declared":null,"index":0,"kind":"missing","probed":false}, {"declared":null,"index":1,"kind":"missing","probed":false}, {"declared":null,"index":2,"kind":"missing","probed":false}, {"declared":null,"index":3,"kind":"missing","probed":false}- endpoints_answered_not_live
- 0
- endpoints_declared
- 4
- endpoints_live
- 0
- endpoints_our_error
- 0
- endpoints_payment_gated
- 0
- endpoints_probeable
- 0
- endpoints_probed
- 0
- endpoints_refused
- 0
- kinds
- missing, missing, missing, missing
- reason
- no_probeable_endpoint
checked at 2026-08-10T07:07:52.226139Z
Has feedback?rung 7 · attested
failAt least one on-chain feedback entry names this agent.
did not pass
- distinct_authors
- 0
- feedback_count
- 0
- reason
- no_feedback
checked at 2026-08-10T07:04:44.398851Z
Check it again, now
outside the censusOn-chain snapshot
celo- token id
- 9119
- owner
- 0x1b94d56f723d8939661d94ed1f899c5c27136b2c
- block
- 74,443,315
- observed
- 2026-08-10T07:04:44.402073Z
What the fetch saw
https- scheme
- https
- http status
- 200
- content type
- text/plain; charset=utf-8
- size
- 1,413 bytes
- sha256
- 17df3190d6dd512d188ad306311bce5f9e0201495d6daa863f51657db2b6495b
- elapsed
- 225 ms
This run
reproducible- run
- 4131a5a1-0461-46ce-b393-bcd825d2113b
- chain
- celo
- pinned block
- 74,443,315
- agents
- 9,765
- started
- 2026-08-10T06:41:13.909696Z
- finished
- 2026-08-10T07:06:42.747601Z
- checker
- 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
- spec commit
- 68fc6765761a10fb26f0692df21c8a6f9d12b1be
cargo run -p sweeper -- celo # at block 74443315