What the provider says
Real-time risk-weighted USDC lending APY on Base: Aave/Compound/Morpho read onchain, Moonwell/Euler/Fluid via DefiLlama, source tagged per reading (never estimated). EIP-712 signed by the payment-receiving address (see X-Signal-* headers), which also holds an ERC-8004 identity and attests readings on-chain via EAS. Verified per-asset accuracy is free at /accuracy.json; raw on-chain attestations at /track-record.
Quoted from x402 Bazaar
· source record
· read 2026-10-27
Facts and where they come from
- Price
-
0.1 USDC per call
Provider claim
Recorded value: 0.1 USDC per call.
- Unit
- per call
- Protocol
-
x402, REST
· transport: HTTP
Provider claim
- Auth
- x402
- Last checked
-
Not checked by us yet — the data is as the source published it
- First seen
- 2026-10-24
- Usage
-
2 calls
· 2 unique payers
in the 30 days before 2026-10-24.
Measured by the x402 Bazaar, not by us and not by the provider.
Money, and what it actually proves
Verified revenue · 30d
Unknown
Observed inflows · 30d
$0.20
Attribution
Exclusive
Receipt ledger
Not connected
Observed transfers
· confidence medium
Token transfers reached this service's own payout address. A transfer is not a purchase, and shared, refunded or unrelated transfers cannot be excluded.
Why revenue is “unknown”. A revenue figure needs a receipt: an amount a buyer
actually paid for this service. We hold none for this entry, and we hold no funds at all.
What we have instead is
$0.20 arriving at the payout address in 30 days —
that is volume, and a lower bound: transfers can be refunds, treasury moves, or payments for
something else entirely.
Cross-check. At the published price the observed inflow would cover about
2 calls; the source counted
2. Two independent measurements of the same
question — they never match exactly, because the effective price differs per call size and the
address can also receive unrelated transfers.
Daily market statistics — the ledger view, day by day
No daily history has been archived for this service yet. Open the full daily history →
Payment rails
Base
· exact · USDC
0x561143BFE9E2D975D92e915B8EfFEAa54119472a
0.1 USDC
From source record
Solana
· exact · USDC
2snXE93VcwUASLErE29mBoikHb36W6Y7q3r2heYuxzuE
0.1 USDC
From source record
A payment rail is where the provider asks to be paid. It is not proof that anything was paid
through it. See evidence levels.
Provenance
One row per statement. “Verified” means we checked it ourselves and the finding is quoted.
“Provider claim” means we read it in the provider's own record. “Not found” is a statement about
our search, not proof of absence.
| Statement |
Status |
What we found |
Source |
Checked |
|
Endpoint
|
Provider claim |
https://yieldsignal.vercel.app/signal/usdc-base-yield
Evidence
Als Resource-URL im Bazaar-Eintrag geführt.
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Input output
|
Provider claim |
Request/response examples published with the listing
Evidence
Beispiel-Ein- und -Ausgabe stammen aus dem Bazaar-Eintrag des Anbieters.
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Payment
|
Provider claim |
2 rails: Base, Solana · payee 0x561143BFE9E2D975D92e915B8EfFEAa54119472a
Evidence
Aus den `accepts`-Einträgen: Netzwerk, Asset, Empfängeradresse und Betrag. Die Adresse ist die Grundlage der späteren On-Chain-Zuordnung; sie ist noch nicht durch eine eigene 402-Antwort bestätigt.
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Pricing
|
Provider claim |
0.1 USDC per call
Evidence
Atomic amount 100000 = 0.1 USDC per call on Base. 2 payment options published. Netzwerk: Base, Solana.
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Protocol
|
Provider claim |
x402 (HTTP 402 payment challenge)
Evidence
Im x402 Bazaar als zahlungspflichtige HTTP-Ressource gelistet (x402Version 2, Typ http).
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Provider
|
Provider claim |
yieldsignal.vercel.app
Evidence
Die Ressource wird unter diesem Host im x402 Bazaar geführt; die Angaben stammen vom Anbieter.
|
api.cdp.coinbase.com
|
2026-10-27 |
|
Usage
|
Verified |
2 calls / 2 unique payers in the last 30 days
Evidence
Source-reported usage from Coinbase x402 Bazaar, read on 2026-10-27. Letzter Aufruf laut Quelle: 2026-10-24T14:56:10.084Z. Aufrufe sind kein Umsatz.
|
api.cdp.coinbase.com
|
2026-10-27 |
Endpoint checks
We have not called this endpoint yet. Until we do, everything above is what the source
published — no more.