Call when an agent needs a cheap confirmation that an x402 wallet payment can se
Call when an agent needs a cheap confirmation that an x402 wallet payment can settle. Returns server UTC time, the verified payer, and an HMAC-free receipt. Send an optional note, or an empty object. Send JSON {"note":"wallet"}. Exact $0.001 USDC on Base. Try unpaid POST /v1/sandbox/x402-ping first.
Not tested: has real-world effectsour last check, 2026-10-18
0 of 0checks answered this week
n/amedian answer time
$0.001listed price per call
n/aprice it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentshelf.syntexa.ch/v1/x402-ping
| Category | Code and developer |
|---|---|
| Provider host | agentshelf.syntexa.ch |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"note": "wallet"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"examples": [
{
"note": "wallet"
}
],
"properties": {
"note": {
"description": "Optional label when you test my x402 wallet. Example: wallet. Omit it on POST. The response confirms the payment settled.",
"examples": [
"wallet"
],
"maxLength": 80,
"minLength": 1,
"type": "string"
}
},
"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": false,
"examples": [
{
"billed": true,
"note": "wallet",
"ok": true,
"payer": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"receipt": "rcpt_example|2026-01-01T00:00:00.000Z|0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"server_time": "2026-01-01T00:00:00.000Z",
"settled": true,
"warnings": []
}
],
"properties": {
"billed": {
"examples": [
true
],
"type": "boolean"
},
"note": {
"examples": [
"wallet"
],
"type": [
"string",
"null"
]
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"payer": {
"examples": [
"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": [
"string",
"null"
]
},
"receipt": {
"examples": [
"rcpt_example|2026-01-01T00:00:00.000Z|0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
],
"type": "string"
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"server_time": {
"examples": [
"2026-01-01T00:00:00.000Z"
],
"type": "string"
},
"settled": {
"examples": [
true
],
"type": "boolean"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"server_time",
"payer",
"settled",
"note",
"receipt"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}