Add an API key to a site
Adds a key to one of the member’s sites and answers its secret, this once: only its SHA-256 is stored. A server or another site sends it as Authorization: Bearer <secret> to call the site’s access: "key" server functions at /api/<name>; the function never sees it, and gets ctx.caller {kind: "key", keyId, keyName}. A key opens the site’s functions whoever may open the site, a private site included. A site holds at most 20 live keys.
Bearer only: a request on the cookie mount is refused with 403. It answers 404 until the sites gateway is released to the member’s company, and for a site the member may not change.
curl --request POST \
--url https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Partner backend"
}
'import requests
url = "https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys"
payload = { "name": "Partner backend" }
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({name: 'Partner backend'})
};
fetch('https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys', 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/sites/{site_id}/api-keys",
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([
'name' => 'Partner backend'
]),
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/sites/{site_id}/api-keys"
payload := strings.NewReader("{\n \"name\": \"Partner backend\"\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/sites/{site_id}/api-keys")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Partner backend\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys")
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 \"name\": \"Partner backend\"\n}"
response = http.request(request)
puts response.read_body{
"status": 201,
"data": {
"id": "0199d1a2-0000-7000-8000-00000000a001",
"name": "Partner backend",
"prefix": "fsk_AbCd1234",
"last_used_at": null,
"created_at": "2026-11-10T09:00:00.000Z",
"secret": "fsk_AbCd1234efGHijKLmnOPqrSTuvWXyz0123456789-_A"
},
"meta": {
"request_uuid": "0192f4c8-5b6c-7d74-a3e8-0f1a2b3c4d5e",
"timestamp": "2026-11-10T09:00:00Z"
}
}{
"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"
}
}{
"status": 123,
"error": {
"message": "<string>",
"details": {}
},
"meta": {
"request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"timestamp": "2023-11-07T05:31:56Z"
}
}Authorizations
A member credential in the Authorization: Bearer header: a member
session JWT, a portal JWT whose login is linked to a membership in
that company, an opaque member token, or a verified One Auth identity
access token. The credential alone identifies the member and company.
Member session JWTs, and portal JWTs the server minted read-only, are
refused with 403 on every write.
Path Parameters
Public id of one of the member's sites.
Body
The new key's name. Any other field is refused.
The name, 1 to 64 characters after trimming.
1Response
The key was added. Store secret now.
The key just added, with its secret.
curl --request POST \
--url https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '
{
"name": "Partner backend"
}
'import requests
url = "https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys"
payload = { "name": "Partner backend" }
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({name: 'Partner backend'})
};
fetch('https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys', 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/sites/{site_id}/api-keys",
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([
'name' => 'Partner backend'
]),
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/sites/{site_id}/api-keys"
payload := strings.NewReader("{\n \"name\": \"Partner backend\"\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/sites/{site_id}/api-keys")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Partner backend\"\n}")
.asString();require 'uri'
require 'net/http'
url = URI("https://api.fluid.app/api/member/v2026-10/sites/{site_id}/api-keys")
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 \"name\": \"Partner backend\"\n}"
response = http.request(request)
puts response.read_body{
"status": 201,
"data": {
"id": "0199d1a2-0000-7000-8000-00000000a001",
"name": "Partner backend",
"prefix": "fsk_AbCd1234",
"last_used_at": null,
"created_at": "2026-11-10T09:00:00.000Z",
"secret": "fsk_AbCd1234efGHijKLmnOPqrSTuvWXyz0123456789-_A"
},
"meta": {
"request_uuid": "0192f4c8-5b6c-7d74-a3e8-0f1a2b3c4d5e",
"timestamp": "2026-11-10T09:00:00Z"
}
}{
"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"
}
}{
"status": 123,
"error": {
"message": "<string>",
"details": {}
},
"meta": {
"request_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
"timestamp": "2023-11-07T05:31:56Z"
}
}