Produce a normalized pre-sign evidence packet for one exact unpaid x402 v2 exact
Produce a normalized pre-sign evidence packet for one exact unpaid x402 v2 exact Base USDC requirement: request identity, selected requirement, public payer coverage, caller ceiling, optional baseline evidence, and an integrity digest. Does not sign, pay, construct a transaction, or recommend whether to buy.
Not tested: has real-world effectsour last check, 2026-09-24
0 of 0checks answered this week
n/amedian answer time
$0.01listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://api.agentmercantile.com/v1/x402-presign-handoff
| Category | Everything else |
|---|---|
| Provider host | api.agentmercantile.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"allowed_pay_to": [
"0xdb7b2b54f80479826222749a2ea73a8acc306e1e"
],
"max_amount_atomic": "20000",
"method": "POST",
"payer_address": "0x1111111111111111111111111111111111111111",
"resource_url": "https://api.agentmercantile.com/v1/url-context"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"allowed_pay_to": {
"items": {
"type": "string"
},
"type": "array"
},
"max_amount_atomic": {
"type": "string"
},
"method": {
"enum": [
"GET",
"POST"
],
"type": "string"
},
"payer_address": {
"type": "string"
},
"resource_url": {
"description": "Public HTTPS x402 resource URL.",
"format": "uri",
"type": "string"
}
},
"required": [
"resource_url",
"method",
"payer_address",
"max_amount_atomic",
"allowed_pay_to"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"additionalProperties": true,
"properties": {
"decision": {
"enum": [
"READY",
"NOT_READY",
"INDETERMINATE"
],
"type": "string"
},
"machine": {
"enum": [
"VM09"
],
"type": "string"
},
"methodology_version": {
"enum": [
"x402-presign-handoff-0.1.0"
],
"type": "string"
},
"status": {
"enum": [
"OK",
"PARTIAL",
"HOLD"
],
"type": "string"
}
},
"required": [
"status",
"machine",
"methodology_version",
"decision"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}