# Requires: npm i -g @infinite_dev/cli && export INFINITE_API_KEY=sk_sandbox_...
# Escape hatch for any endpoint: infinite api <METHOD> <path>
infinite api POST /v1/external-wallets \
  --body '<request-json>'

Create an external wallet.

# Infinite MCP is read-only for this endpoint — use a dedicated MCP tool when one exists, otherwise run the CLI tab.

import requests

url = "https://sandbox.api.infinite.dev/v1/external-wallets"

payload = {
    "customerId": "cust_abc123",
    "walletAddress": "0x1234567890abcdef1234567890abcdef12345678",
    "counterpartyId": "cp_abc123",
    "chains": ["ETHEREUM", "BASE"],
    "currencies": ["USDC", "USDT"],
    "externalReference": "550e8400-e29b-41d4-a716-446655440000",
    "isThirdParty": False,
    "custodyType": "SELF_HOSTED",
    "metadata": { "nickname": "Primary USDC Wallet" },
    "beneficiaryType": "INDIVIDUAL",
    "beneficiaryName": "Jane Doe"
}
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({
    customerId: 'cust_abc123',
    walletAddress: '0x1234567890abcdef1234567890abcdef12345678',
    counterpartyId: 'cp_abc123',
    chains: ['ETHEREUM', 'BASE'],
    currencies: ['USDC', 'USDT'],
    externalReference: '550e8400-e29b-41d4-a716-446655440000',
    isThirdParty: false,
    custodyType: 'SELF_HOSTED',
    metadata: {nickname: 'Primary USDC Wallet'},
    beneficiaryType: 'INDIVIDUAL',
    beneficiaryName: 'Jane Doe'
  })
};

fetch('https://sandbox.api.infinite.dev/v1/external-wallets', 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://sandbox.api.infinite.dev/v1/external-wallets",
  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([
    'customerId' => 'cust_abc123',
    'walletAddress' => '0x1234567890abcdef1234567890abcdef12345678',
    'counterpartyId' => 'cp_abc123',
    'chains' => [
        'ETHEREUM',
        'BASE'
    ],
    'currencies' => [
        'USDC',
        'USDT'
    ],
    'externalReference' => '550e8400-e29b-41d4-a716-446655440000',
    'isThirdParty' => false,
    'custodyType' => 'SELF_HOSTED',
    'metadata' => [
        'nickname' => 'Primary USDC Wallet'
    ],
    'beneficiaryType' => 'INDIVIDUAL',
    'beneficiaryName' => 'Jane Doe'
  ]),
  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://sandbox.api.infinite.dev/v1/external-wallets"

	payload := strings.NewReader("{\n  \"customerId\": \"cust_abc123\",\n  \"walletAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"counterpartyId\": \"cp_abc123\",\n  \"chains\": [\n    \"ETHEREUM\",\n    \"BASE\"\n  ],\n  \"currencies\": [\n    \"USDC\",\n    \"USDT\"\n  ],\n  \"externalReference\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"isThirdParty\": false,\n  \"custodyType\": \"SELF_HOSTED\",\n  \"metadata\": {\n    \"nickname\": \"Primary USDC Wallet\"\n  },\n  \"beneficiaryType\": \"INDIVIDUAL\",\n  \"beneficiaryName\": \"Jane Doe\"\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://sandbox.api.infinite.dev/v1/external-wallets")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customerId\": \"cust_abc123\",\n  \"walletAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"counterpartyId\": \"cp_abc123\",\n  \"chains\": [\n    \"ETHEREUM\",\n    \"BASE\"\n  ],\n  \"currencies\": [\n    \"USDC\",\n    \"USDT\"\n  ],\n  \"externalReference\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"isThirdParty\": false,\n  \"custodyType\": \"SELF_HOSTED\",\n  \"metadata\": {\n    \"nickname\": \"Primary USDC Wallet\"\n  },\n  \"beneficiaryType\": \"INDIVIDUAL\",\n  \"beneficiaryName\": \"Jane Doe\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.api.infinite.dev/v1/external-wallets")

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  \"customerId\": \"cust_abc123\",\n  \"walletAddress\": \"0x1234567890abcdef1234567890abcdef12345678\",\n  \"counterpartyId\": \"cp_abc123\",\n  \"chains\": [\n    \"ETHEREUM\",\n    \"BASE\"\n  ],\n  \"currencies\": [\n    \"USDC\",\n    \"USDT\"\n  ],\n  \"externalReference\": \"550e8400-e29b-41d4-a716-446655440000\",\n  \"isThirdParty\": false,\n  \"custodyType\": \"SELF_HOSTED\",\n  \"metadata\": {\n    \"nickname\": \"Primary USDC Wallet\"\n  },\n  \"beneficiaryType\": \"INDIVIDUAL\",\n  \"beneficiaryName\": \"Jane Doe\"\n}"

response = http.request(request)
puts response.read_body

{
  "id": "ewa_1234567890abcdef",
  "customerId": "cust_abc123",
  "type": "EXTERNAL_WALLET",
  "status": "IN_REVIEW",
  "walletAddress": "0x1234567890abcdef1234567890abcdef12345678",
  "addressType": "EVM",
  "createdAt": "2026-01-15T10:00:00Z",
  "updatedAt": "2026-01-15T10:00:00Z",
  "counterpartyId": "cp_abc123",
  "metadata": {
    "nickname": "Main Checking Account",
    "purpose": "Business operations",
    "tags": [
      "primary",
      "operations"
    ]
  },
  "chains": [
    "ETHEREUM",
    "BASE"
  ],
  "currencies": [
    "USDC",
    "USDT"
  ],
  "custodyType": "SELF_HOSTED",
  "created": true
}