Verify an x402 payment payload signature
curl --request POST \
--url https://api.swarmd.ai/a2a-payments/v1/verify \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"paymentPayload": {
"x402Version": 123,
"scheme": "<string>",
"network": "<string>",
"payload": {
"signature": "<string>",
"authorization": {
"from": "<string>",
"to": "<string>",
"value": 123,
"validAfter": 123,
"validBefore": 123,
"nonce": "<string>"
}
}
},
"paymentRequirements": {
"scheme": "<string>",
"network": "<string>",
"maxAmountRequired": 123,
"resource": "<string>",
"payTo": "<string>",
"description": "<string>",
"maxTimeoutSeconds": 123
}
}
'import requests
url = "https://api.swarmd.ai/a2a-payments/v1/verify"
payload = {
"paymentPayload": {
"x402Version": 123,
"scheme": "<string>",
"network": "<string>",
"payload": {
"signature": "<string>",
"authorization": {
"from": "<string>",
"to": "<string>",
"value": 123,
"validAfter": 123,
"validBefore": 123,
"nonce": "<string>"
}
}
},
"paymentRequirements": {
"scheme": "<string>",
"network": "<string>",
"maxAmountRequired": 123,
"resource": "<string>",
"payTo": "<string>",
"description": "<string>",
"maxTimeoutSeconds": 123
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
paymentPayload: {
x402Version: 123,
scheme: '<string>',
network: '<string>',
payload: {
signature: '<string>',
authorization: {
from: '<string>',
to: '<string>',
value: 123,
validAfter: 123,
validBefore: 123,
nonce: '<string>'
}
}
},
paymentRequirements: {
scheme: '<string>',
network: '<string>',
maxAmountRequired: 123,
resource: '<string>',
payTo: '<string>',
description: '<string>',
maxTimeoutSeconds: 123
}
})
};
fetch('https://api.swarmd.ai/a2a-payments/v1/verify', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.swarmd.ai/a2a-payments/v1/verify",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'paymentPayload' => [
'x402Version' => 123,
'scheme' => '<string>',
'network' => '<string>',
'payload' => [
'signature' => '<string>',
'authorization' => [
'from' => '<string>',
'to' => '<string>',
'value' => 123,
'validAfter' => 123,
'validBefore' => 123,
'nonce' => '<string>'
]
]
],
'paymentRequirements' => [
'scheme' => '<string>',
'network' => '<string>',
'maxAmountRequired' => 123,
'resource' => '<string>',
'payTo' => '<string>',
'description' => '<string>',
'maxTimeoutSeconds' => 123
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.swarmd.ai/a2a-payments/v1/verify"
payload := strings.NewReader("{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.swarmd.ai/a2a-payments/v1/verify")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.swarmd.ai/a2a-payments/v1/verify")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}"
response = http.request(request)
puts response.read_body{
"isValid": true,
"invalidReason": "<string>"
}A2A Payments
Verify an x402 payment payload signature
Security Requirements
| Auth Types | Entities | Permissions | Required Roles |
|---|---|---|---|
| SERVICE, AGENT | PAYMENT | READ | PAYMENT:READ |
POST
/
a2a-payments
/
v1
/
verify
Verify an x402 payment payload signature
curl --request POST \
--url https://api.swarmd.ai/a2a-payments/v1/verify \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"paymentPayload": {
"x402Version": 123,
"scheme": "<string>",
"network": "<string>",
"payload": {
"signature": "<string>",
"authorization": {
"from": "<string>",
"to": "<string>",
"value": 123,
"validAfter": 123,
"validBefore": 123,
"nonce": "<string>"
}
}
},
"paymentRequirements": {
"scheme": "<string>",
"network": "<string>",
"maxAmountRequired": 123,
"resource": "<string>",
"payTo": "<string>",
"description": "<string>",
"maxTimeoutSeconds": 123
}
}
'import requests
url = "https://api.swarmd.ai/a2a-payments/v1/verify"
payload = {
"paymentPayload": {
"x402Version": 123,
"scheme": "<string>",
"network": "<string>",
"payload": {
"signature": "<string>",
"authorization": {
"from": "<string>",
"to": "<string>",
"value": 123,
"validAfter": 123,
"validBefore": 123,
"nonce": "<string>"
}
}
},
"paymentRequirements": {
"scheme": "<string>",
"network": "<string>",
"maxAmountRequired": 123,
"resource": "<string>",
"payTo": "<string>",
"description": "<string>",
"maxTimeoutSeconds": 123
}
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({
paymentPayload: {
x402Version: 123,
scheme: '<string>',
network: '<string>',
payload: {
signature: '<string>',
authorization: {
from: '<string>',
to: '<string>',
value: 123,
validAfter: 123,
validBefore: 123,
nonce: '<string>'
}
}
},
paymentRequirements: {
scheme: '<string>',
network: '<string>',
maxAmountRequired: 123,
resource: '<string>',
payTo: '<string>',
description: '<string>',
maxTimeoutSeconds: 123
}
})
};
fetch('https://api.swarmd.ai/a2a-payments/v1/verify', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));<?php
$curl = curl_init();
curl_setopt_array($curl, [
CURLOPT_URL => "https://api.swarmd.ai/a2a-payments/v1/verify",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'paymentPayload' => [
'x402Version' => 123,
'scheme' => '<string>',
'network' => '<string>',
'payload' => [
'signature' => '<string>',
'authorization' => [
'from' => '<string>',
'to' => '<string>',
'value' => 123,
'validAfter' => 123,
'validBefore' => 123,
'nonce' => '<string>'
]
]
],
'paymentRequirements' => [
'scheme' => '<string>',
'network' => '<string>',
'maxAmountRequired' => 123,
'resource' => '<string>',
'payTo' => '<string>',
'description' => '<string>',
'maxTimeoutSeconds' => 123
]
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"strings"
"net/http"
"io"
)
func main() {
url := "https://api.swarmd.ai/a2a-payments/v1/verify"
payload := strings.NewReader("{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.post("https://api.swarmd.ai/a2a-payments/v1/verify")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.swarmd.ai/a2a-payments/v1/verify")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"paymentPayload\": {\n \"x402Version\": 123,\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"payload\": {\n \"signature\": \"<string>\",\n \"authorization\": {\n \"from\": \"<string>\",\n \"to\": \"<string>\",\n \"value\": 123,\n \"validAfter\": 123,\n \"validBefore\": 123,\n \"nonce\": \"<string>\"\n }\n }\n },\n \"paymentRequirements\": {\n \"scheme\": \"<string>\",\n \"network\": \"<string>\",\n \"maxAmountRequired\": 123,\n \"resource\": \"<string>\",\n \"payTo\": \"<string>\",\n \"description\": \"<string>\",\n \"maxTimeoutSeconds\": 123\n }\n}"
response = http.request(request)
puts response.read_body{
"isValid": true,
"invalidReason": "<string>"
}⌘I