Gateways
Verify a payment method ($0 auth)
Runs a zero-amount authorization to confirm a payment method is valid without
charging it. Creates a verify transaction and returns it with 201. The
request body is optional. Returns 404 when the gateway is not found and 422
when the request fails validation.
POST
/
api
/
payment
/
v2026-04
/
gateways
/
{id}
/
verify
Verify a payment method ($0 auth)
curl --request POST \
--url https://api.fluid.app/api/payment/v2026-04/gateways/{id}/verify \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"transaction": {
"payment_method_id": "pm_9f8e7d6c",
"currency_code": "USD"
}
}
'import requests
url = "https://api.fluid.app/api/payment/v2026-04/gateways/{id}/verify"
payload = { "transaction": {
"payment_method_id": "pm_9f8e7d6c",
"currency_code": "USD"
} }
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({transaction: {payment_method_id: 'pm_9f8e7d6c', currency_code: 'USD'}})
};
fetch('https://api.fluid.app/api/payment/v2026-04/gateways/{id}/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.fluid.app/api/payment/v2026-04/gateways/{id}/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([
'transaction' => [
'payment_method_id' => 'pm_9f8e7d6c',
'currency_code' => 'USD'
]
]),
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/payment/v2026-04/gateways/{id}/verify"
payload := strings.NewReader("{\n \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\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.fluid.app/api/payment/v2026-04/gateways/{id}/verify")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/payment/v2026-04/gateways/{id}/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 \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\n }\n}"
response = http.request(request)
puts response.read_body{
"data": {
"id": "<string>",
"amount_cents": 123,
"currency_code": "<string>",
"processing_fee_cents": 123,
"credited_amount_cents": 123,
"retain_on_success": true,
"metadata": {},
"created_at": "2023-11-07T05:31:56Z",
"updated_at": "2023-11-07T05:31:56Z",
"gateway_id": "<string>",
"payment_method_id": "<string>",
"card_network": "<string>",
"parent_transaction_id": "<string>",
"payment_source": "<string>",
"gateway_transaction_id": "<string>",
"reference_token": "<string>",
"description": "<string>",
"platform_fee_cents": 123
},
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
},
"status": "<string>"
}{
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"status": "error",
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"status": "error",
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}Authorizations
API key (fp_live_/fp_test_) or JWT bearer token
Path Parameters
Gateway slug
Body
application/json
Show child attributes
Show child attributes
⌘I
Verify a payment method ($0 auth)
curl --request POST \
--url https://api.fluid.app/api/payment/v2026-04/gateways/{id}/verify \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"transaction": {
"payment_method_id": "pm_9f8e7d6c",
"currency_code": "USD"
}
}
'import requests
url = "https://api.fluid.app/api/payment/v2026-04/gateways/{id}/verify"
payload = { "transaction": {
"payment_method_id": "pm_9f8e7d6c",
"currency_code": "USD"
} }
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({transaction: {payment_method_id: 'pm_9f8e7d6c', currency_code: 'USD'}})
};
fetch('https://api.fluid.app/api/payment/v2026-04/gateways/{id}/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.fluid.app/api/payment/v2026-04/gateways/{id}/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([
'transaction' => [
'payment_method_id' => 'pm_9f8e7d6c',
'currency_code' => 'USD'
]
]),
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/payment/v2026-04/gateways/{id}/verify"
payload := strings.NewReader("{\n \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\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.fluid.app/api/payment/v2026-04/gateways/{id}/verify")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\n }\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/payment/v2026-04/gateways/{id}/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 \"transaction\": {\n \"payment_method_id\": \"pm_9f8e7d6c\",\n \"currency_code\": \"USD\"\n }\n}"
response = http.request(request)
puts response.read_body{
"data": {
"id": "<string>",
"amount_cents": 123,
"currency_code": "<string>",
"processing_fee_cents": 123,
"credited_amount_cents": 123,
"retain_on_success": true,
"metadata": {},
"created_at": "2023-11-07T05:31:56Z",
"updated_at": "2023-11-07T05:31:56Z",
"gateway_id": "<string>",
"payment_method_id": "<string>",
"card_network": "<string>",
"parent_transaction_id": "<string>",
"payment_source": "<string>",
"gateway_transaction_id": "<string>",
"reference_token": "<string>",
"description": "<string>",
"platform_fee_cents": 123
},
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
},
"status": "<string>"
}{
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"status": "error",
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"status": "error",
"message": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}