curl --request POST \
--url https://api.sandbox.brickken.com/x402/rams/freeze-agent \
--header 'Content-Type: application/json' \
--header 'X-Payment: <api-key>' \
--data '
{
"chainId": "11155111",
"signerAddress": "<string>",
"agent": "<string>",
"agentMandateAddress": "<string>",
"gasLimit": "<string>",
"nonce": 123,
"ownerEmail": "jsmith@example.com",
"email": "jsmith@example.com"
}
'import requests
url = "https://api.sandbox.brickken.com/x402/rams/freeze-agent"
payload = {
"chainId": "11155111",
"signerAddress": "<string>",
"agent": "<string>",
"agentMandateAddress": "<string>",
"gasLimit": "<string>",
"nonce": 123,
"ownerEmail": "jsmith@example.com",
"email": "jsmith@example.com"
}
headers = {
"X-Payment": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-Payment': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
chainId: '11155111',
signerAddress: '<string>',
agent: '<string>',
agentMandateAddress: '<string>',
gasLimit: '<string>',
nonce: 123,
ownerEmail: 'jsmith@example.com',
email: 'jsmith@example.com'
})
};
fetch('https://api.sandbox.brickken.com/x402/rams/freeze-agent', 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.sandbox.brickken.com/x402/rams/freeze-agent",
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([
'chainId' => '11155111',
'signerAddress' => '<string>',
'agent' => '<string>',
'agentMandateAddress' => '<string>',
'gasLimit' => '<string>',
'nonce' => 123,
'ownerEmail' => 'jsmith@example.com',
'email' => 'jsmith@example.com'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-Payment: <api-key>"
],
]);
$response = curl_exec($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.sandbox.brickken.com/x402/rams/freeze-agent"
payload := strings.NewReader("{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Payment", "<api-key>")
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.sandbox.brickken.com/x402/rams/freeze-agent")
.header("X-Payment", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.brickken.com/x402/rams/freeze-agent")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Payment"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"transactions": {},
"txId": "<string>",
"info": {}
}
}Freeze RAMS Agent
Prepare an enforcement freeze for an ERC-8226 agent.
curl --request POST \
--url https://api.sandbox.brickken.com/x402/rams/freeze-agent \
--header 'Content-Type: application/json' \
--header 'X-Payment: <api-key>' \
--data '
{
"chainId": "11155111",
"signerAddress": "<string>",
"agent": "<string>",
"agentMandateAddress": "<string>",
"gasLimit": "<string>",
"nonce": 123,
"ownerEmail": "jsmith@example.com",
"email": "jsmith@example.com"
}
'import requests
url = "https://api.sandbox.brickken.com/x402/rams/freeze-agent"
payload = {
"chainId": "11155111",
"signerAddress": "<string>",
"agent": "<string>",
"agentMandateAddress": "<string>",
"gasLimit": "<string>",
"nonce": 123,
"ownerEmail": "jsmith@example.com",
"email": "jsmith@example.com"
}
headers = {
"X-Payment": "<api-key>",
"Content-Type": "application/json"
}
response = requests.post(url, json=payload, headers=headers)
print(response.text)const options = {
method: 'POST',
headers: {'X-Payment': '<api-key>', 'Content-Type': 'application/json'},
body: JSON.stringify({
chainId: '11155111',
signerAddress: '<string>',
agent: '<string>',
agentMandateAddress: '<string>',
gasLimit: '<string>',
nonce: 123,
ownerEmail: 'jsmith@example.com',
email: 'jsmith@example.com'
})
};
fetch('https://api.sandbox.brickken.com/x402/rams/freeze-agent', 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.sandbox.brickken.com/x402/rams/freeze-agent",
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([
'chainId' => '11155111',
'signerAddress' => '<string>',
'agent' => '<string>',
'agentMandateAddress' => '<string>',
'gasLimit' => '<string>',
'nonce' => 123,
'ownerEmail' => 'jsmith@example.com',
'email' => 'jsmith@example.com'
]),
CURLOPT_HTTPHEADER => [
"Content-Type: application/json",
"X-Payment: <api-key>"
],
]);
$response = curl_exec($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.sandbox.brickken.com/x402/rams/freeze-agent"
payload := strings.NewReader("{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}")
req, _ := http.NewRequest("POST", url, payload)
req.Header.Add("X-Payment", "<api-key>")
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.sandbox.brickken.com/x402/rams/freeze-agent")
.header("X-Payment", "<api-key>")
.header("Content-Type", "application/json")
.body("{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.sandbox.brickken.com/x402/rams/freeze-agent")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Post.new(url)
request["X-Payment"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"chainId\": \"11155111\",\n \"signerAddress\": \"<string>\",\n \"agent\": \"<string>\",\n \"agentMandateAddress\": \"<string>\",\n \"gasLimit\": \"<string>\",\n \"nonce\": 123,\n \"ownerEmail\": \"jsmith@example.com\",\n \"email\": \"jsmith@example.com\"\n}"
response = http.request(request)
puts response.read_body{
"data": {
"transactions": {},
"txId": "<string>",
"info": {}
}
}ramsFreezeAgent. signerAddress must hold ENFORCER_ROLE on AgentMandate. It is always client-signed and freezes the agent across all mandates in that registry.
The AgentMandate admin cannot also be its enforcer (AdminEnforcerOverlap). Use a distinct operational wallet.
Next step
Preparing does not touch the chain. The response gives youtxId, the unsigned transactions, and an x402Requirements quote.
Choose who broadcasts
client-signed (the default) — you sign the transaction and Brickken broadcasts it. client-broadcast — you sign and broadcast it yourself, then confirm with txHash. Either way the operation price is split evenly: half at prepare, half at send.Submit it and settle the payment
POST to /send-transactions. The first attempt answers 402 Payment Required; read PAYMENT-REQUIRED, sign the payment locally, and retry with X-PAYMENT. An x-api-key is accepted here instead of paying.Poll until it confirms
GET /get-transaction-status with the txId. Your payment settles only after the operation confirms, and is released if it reverts.Authorizations
Base64-encoded x402 payment payload. Supported for x402-eligible agentic methods on /x402/... facades, /prepare-transactions, and eligible /send-transactions retries.
Body
Target operation chain ID. RAMS is available on Ethereum Sepolia (11155111) only at launch. Decimal and 0x hex values are accepted.
"11155111"
"0xaa36a7"
MUST hold ENFORCER_ROLE on the AgentMandate registry (pre-checked). Never brickken-relayed.
^0x[a-fA-F0-9]{40}$Agent to freeze.
^0x[a-fA-F0-9]{40}$Optional AgentMandate contract override; defaults to the chain's configured RAMS AgentMandate address.
^0x[a-fA-F0-9]{40}$Optional explicit gas limit.
Optional explicit transaction nonce when managing nonces manually.
Optional owner attribution email.
Alias for ownerEmail where supported.
Response
Prepared unsigned transaction payload.
Show child attributes
Show child attributes