Save a card

curl --request POST \
  --url https://api.fluid.app/api/member/v2026-10/payment-methods \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "token": "tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc",
  "exp_month": "03",
  "exp_year": "2031",
  "billing_address_id": "0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f",
  "card_holder": "Casey Brooks",
  "default": true
}
'

import requests

url = "https://api.fluid.app/api/member/v2026-10/payment-methods"

payload = {
    "token": "tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc",
    "exp_month": "03",
    "exp_year": "2031",
    "billing_address_id": "0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f",
    "card_holder": "Casey Brooks",
    "default": True
}
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({
    token: 'tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc',
    exp_month: '03',
    exp_year: '2031',
    billing_address_id: '0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f',
    card_holder: 'Casey Brooks',
    default: true
  })
};

fetch('https://api.fluid.app/api/member/v2026-10/payment-methods', 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.fluid.app/api/member/v2026-10/payment-methods",
  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([
    'token' => 'tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc',
    'exp_month' => '03',
    'exp_year' => '2031',
    'billing_address_id' => '0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f',
    'card_holder' => 'Casey Brooks',
    'default' => true
  ]),
  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.fluid.app/api/member/v2026-10/payment-methods"

	payload := strings.NewReader("{\n  \"token\": \"tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc\",\n  \"exp_month\": \"03\",\n  \"exp_year\": \"2031\",\n  \"billing_address_id\": \"0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f\",\n  \"card_holder\": \"Casey Brooks\",\n  \"default\": true\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.fluid.app/api/member/v2026-10/payment-methods")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"token\": \"tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc\",\n  \"exp_month\": \"03\",\n  \"exp_year\": \"2031\",\n  \"billing_address_id\": \"0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f\",\n  \"card_holder\": \"Casey Brooks\",\n  \"default\": true\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.fluid.app/api/member/v2026-10/payment-methods")

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  \"token\": \"tok_sandbox_4hQ8pZ2mXv9sLw3eRk7Ybc\",\n  \"exp_month\": \"03\",\n  \"exp_year\": \"2031\",\n  \"billing_address_id\": \"0192f4f0-7a8b-7c9d-8e0f-1a2b3c4d5e6f\",\n  \"card_holder\": \"Casey Brooks\",\n  \"default\": true\n}"

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

{
  "status": 201,
  "data": {
    "id": "0192f501-2b3c-7d4e-8f5a-6b7c8d9e0f1a",
    "kind": "card",
    "brand": "visa",
    "last4": "5555",
    "expires": {
      "month": 3,
      "year": 2031
    },
    "card_holder": "Casey Brooks",
    "default": true,
    "billing_address": {
      "name": "Casey Brooks",
      "address1": "742 Evergreen Terrace",
      "address2": null,
      "city": "Springfield",
      "state": "IL",
      "postal_code": "62704",
      "country_code": "US"
    },
    "created_at": "2026-07-02T19:44:10.000000Z"
  },
  "meta": {
    "request_uuid": "0192f520-1a2b-7c3d-8e4f-5a6b7c8d9e0f",
    "timestamp": "2026-09-30T15:20:00Z"
  }
}

{
  "status": 202,
  "data": {
    "id": "6f1c2a9e-3b7d-4c58-9e21-0a4d8b7c5e13",
    "status": "required",
    "method_content": null,
    "fingerprinting_required": false,
    "merchant_tx_id": "6f1c2a9e-3b7d-4c58-9e21-0a4d8b7c5e13"
  },
  "meta": {
    "request_uuid": "0192f520-1a2b-7c3d-8e4f-5a6b7c8d9e0f",
    "timestamp": "2026-09-30T15:20:00Z"
  }
}

{
  "status": 123,
  "error": {
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "timestamp": "2023-11-07T05:31:56Z"
  }
}

{
  "status": 123,
  "error": {
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "timestamp": "2023-11-07T05:31:56Z"
  }
}

{
  "status": 123,
  "error": {
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "timestamp": "2023-11-07T05:31:56Z"
  }
}

{
  "status": 123,
  "error": {
    "message": "<string>",
    "details": {}
  },
  "meta": {
    "request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "timestamp": "2023-11-07T05:31:56Z"
  }
}