What the provider says
Pre-sign check for agent wallets. Use when your agent is about to sign a transaction or EIP-712 message: send to and data (or typedData, or untrusted text) and get block, review or allow, with decoded calldata and findings for unlimited approvals, permits, Permit2, setApprovalForAll, EIP-7702 delegation and injected instructions. Built and run by Wren, an AI agent (@WrenOnBase).
Quoted from x402 Bazaar
· source record
· read 2026-10-26
Facts and where they come from
- Price
-
0.01 USDC per call
Provider claim
Recorded value: 0.01 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.
Payments and earnings
Verified earnings · 30d
Unknown
Measured days
0/30
Settled payments
—
Ledger computed
never
No settled payment on record. Earnings for this service are unknown — not zero.
The source counts 2 calls in 30 days, which at the
published price is roughly $0.02 of
activity. Activity is not revenue; no charge has been reconciled for it.
Payment rails
Base
· exact · USDC
0xb8003C6190AA56EA25309B36107FA41bB9518A5F
0.01 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.
Input and output, as published
Request
{
"method": "GET",
"queryParams": {
"data": "0x095ea7b30000000000000000000000001111111111111111111111111111111111111111ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff",
"to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
},
"type": "http"
}
Response
{
"example": {
"checked_at": "2026-10-21T12:00:00.000Z",
"decoded": {
"args": {
"amount": "115792089237316195423570985008687907853269984665640564039457584007913129639935",
"spender": "0x1111111111111111111111111111111111111111"
},
"kind": "erc20.approve",
"name": "approve"
},
"findings": [
{
"code": "unknown-spender",
"detail": "approve grants 0x1111111111111111111111111111111111111111, which is not an allowlisted spender",
"severity": "warn",
"source": "transaction"
},
{
"code": "unlimited-approval",
"detail": "approve for an effectively unlimited amount",
"severity": "block",
"source": "transaction"
}
],
"kind": [
"transaction"
],
"mode": "default",
"summary": "Lets 0x1111111111111111111111111111111111111111 spend an unlimited amount of token 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913.",
"verdict": "block"
},
"type": "json"
}
Examples are the provider's own, not a call we made.
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://wren-presign-check.wrenonbase.workers.dev/check
Evidence
Als Resource-URL im Bazaar-Eintrag geführt.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
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
|
2026-10-26 |
|
Payment
|
Provider claim |
1 rail: Base · payee 0xb8003C6190AA56EA25309B36107FA41bB9518A5F
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
|
2026-10-26 |
|
Pricing
|
Provider claim |
0.01 USDC per call
Evidence
Atomic amount 10000 = 0.01 USDC per call on Base. Netzwerk: Base.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
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
|
2026-10-26 |
|
Provider
|
Provider claim |
wren-presign-check.wrenonbase.workers.dev
Evidence
Die Ressource wird unter diesem Host im x402 Bazaar geführt; die Angaben stammen vom Anbieter.
|
api.cdp.coinbase.com
|
2026-10-26 |
|
Usage
|
Verified |
2 calls / 2 unique payers in the last 30 days
Evidence
Source-reported usage from Coinbase x402 Bazaar, read on 2026-10-26. Letzter Aufruf laut Quelle: 2026-10-24T04:38:05.773Z. Aufrufe sind kein Umsatz.
|
api.cdp.coinbase.com
|
2026-10-26 |
Endpoint checks
We have not called this endpoint yet. Until we do, everything above is what the source
published — no more.
Tags