Billing
Get what the browser needs to confirm a waiting card purchase
For a card purchase waiting for its cardholder to confirm it with their bank (3D Secure; credit_purchase.action_required), the Stripe publishable key and the PaymentIntent’s client secret, read from Stripe now. Buying credits and Pay now already return the same as next_action; use this when the browser lost it (a reload, a failed read). The secret lets its holder finish this one payment, so the answer is never cached. Reading changes nothing. Needs billing.update; never a Droplet token.
GET
/
api
/
settings
/
billing
/
credits
/
purchases
/
{id}
/
authentication
Get what the browser needs to confirm a waiting card purchase
curl --request GET \
--url https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication', 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/settings/billing/credits/purchases/{id}/authentication",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"next_action": {
"type": "confirm_payment_intent",
"client_secret": "pi_3Qx0aBCdEfGhIjKl1AbCdEfG_secret_Zy9XwVuTsRqPoNmLkJiHgFeDc",
"publishable_key": "pk_live_51Mx0aBCdEfGhIjKlMnOpQrStUvWxYz"
},
"status": 200,
"meta": {
"request_id": "f3b8c2d1-6a4e-4f7b-9c1d-2e5a8b7c4d90",
"timestamp": "2026-09-30T14:05:11Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}Authorizations
Bearer token authentication
Path Parameters
The credit purchase's id.
Response
The purchase is waiting for its cardholder; confirm it with these
What the browser needs to finish confirming a card purchase with the cardholder's bank: build Stripe.js with publishable_key and call stripe.handleNextAction({ clientSecret: client_secret }). The secret lets its holder finish this one payment; show it to the cardholder's browser only, never store or log it. The credits are granted when Stripe reports the money received, not by this call.
Show child attributes
Show child attributes
⌘I
Get what the browser needs to confirm a waiting card purchase
curl --request GET \
--url https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication \
--header 'Authorization: Bearer <token>'import requests
url = "https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication"
headers = {"Authorization": "Bearer <token>"}
response = requests.get(url, headers=headers)
print(response.text)const options = {method: 'GET', headers: {Authorization: 'Bearer <token>'}};
fetch('https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication', 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/settings/billing/credits/purchases/{id}/authentication",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>"
],
]);
$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}package main
import (
"fmt"
"net/http"
"io"
)
func main() {
url := "https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication"
req, _ := http.NewRequest("GET", url, nil)
req.Header.Add("Authorization", "Bearer <token>")
res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))
}HttpResponse<String> response = Unirest.get("https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication")
.header("Authorization", "Bearer <token>")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/settings/billing/credits/purchases/{id}/authentication")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
request["Authorization"] = 'Bearer <token>'
response = http.request(request)
puts response.read_body{
"next_action": {
"type": "confirm_payment_intent",
"client_secret": "pi_3Qx0aBCdEfGhIjKl1AbCdEfG_secret_Zy9XwVuTsRqPoNmLkJiHgFeDc",
"publishable_key": "pk_live_51Mx0aBCdEfGhIjKlMnOpQrStUvWxYz"
},
"status": 200,
"meta": {
"request_id": "f3b8c2d1-6a4e-4f7b-9c1d-2e5a8b7c4d90",
"timestamp": "2026-09-30T14:05:11Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}{
"message": "<string>",
"error": "<string>",
"error_message": "<string>",
"errors": "<string>",
"meta": {
"request_id": "<string>",
"timestamp": "2023-11-07T05:31:56Z"
}
}