Subscriptions
Get the sign-in facts for a subscription link
Public. Names the company a subscription token belongs to and how its shoppers sign in, so a landing page that holds only the link can start the sign-in. The lookup is by the token string only; a numeric id never resolves. A disabled subscription still resolves. Every miss, whether an unknown token, a company that does not run subscriptions or a sandbox twin, is the same 404. Throttled per IP, answering 429.
GET
/
api
/
checkout
/
v2026-04
/
subscriptions
/
{token}
/
sign-in
Get the sign-in facts for a subscription link
curl --request GET \
--url https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-inimport requests
url = "https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in', 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/checkout/v2026-04/subscriptions/{token}/sign-in",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($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/checkout/v2026-04/subscriptions/{token}/sign-in"
req, _ := http.NewRequest("GET", url, nil)
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/checkout/v2026-04/subscriptions/{token}/sign-in")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"company": {
"uuid": "0192f0c4-7d3e-7a10-9b52-3f6a1c8e5d20",
"identity_sign_in_enabled": true,
"checkout_identity_enabled": false,
"name": "Primex",
"subdomain": "primex"
}
}{
"error_message": "<string>",
"errors": {}
}⌘I
Get the sign-in facts for a subscription link
curl --request GET \
--url https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-inimport requests
url = "https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in"
response = requests.get(url)
print(response.text)const options = {method: 'GET'};
fetch('https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in', 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/checkout/v2026-04/subscriptions/{token}/sign-in",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "GET",
]);
$response = curl_exec($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/checkout/v2026-04/subscriptions/{token}/sign-in"
req, _ := http.NewRequest("GET", url, nil)
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/checkout/v2026-04/subscriptions/{token}/sign-in")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/checkout/v2026-04/subscriptions/{token}/sign-in")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true
request = Net::HTTP::Get.new(url)
response = http.request(request)
puts response.read_body{
"company": {
"uuid": "0192f0c4-7d3e-7a10-9b52-3f6a1c8e5d20",
"identity_sign_in_enabled": true,
"checkout_identity_enabled": false,
"name": "Primex",
"subdomain": "primex"
}
}{
"error_message": "<string>",
"errors": {}
}