Create an application

curl --request POST \
  --url https://backend.trusys.ai/api/external/applications \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "name": "Customer Support Bot",
  "description": "Production chatbot for billing and account questions"
}
'

import requests

url = "https://backend.trusys.ai/api/external/applications"

payload = {
    "name": "Customer Support Bot",
    "description": "Production chatbot for billing and account questions"
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Customer Support Bot',
    description: 'Production chatbot for billing and account questions'
  })
};

fetch('https://backend.trusys.ai/api/external/applications', 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://backend.trusys.ai/api/external/applications",
  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' => 'Customer Support Bot',
    'description' => 'Production chatbot for billing and account questions'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($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://backend.trusys.ai/api/external/applications"

	payload := strings.NewReader("{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	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://backend.trusys.ai/api/external/applications")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://backend.trusys.ai/api/external/applications")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}"

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

{
  "success": true,
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "createdAt": "2026-07-02T12:00:00.000Z"
  }
}

{
  "success": false,
  "message": "Invalid request body",
  "errors": [
    {
      "path": "name",
      "message": "name is required"
    }
  ]
}

{
  "message": "Error while verifying api key"
}

{
  "success": false,
  "message": "Application with this name already exists."
}

Create an application

Registers a new AI application in your Trusys workspace.

Use the returned id in all subsequent calls for monitoring, evaluations, and guardrails. Application names must be unique within your project.

This creates a minimal application record with no connected model provider — use it when your application sends its own traces via the API (POST /evaluations) rather than being called directly by Trusys. If you need Trusys to actively call your model (for example, for security red-teaming that generates its own test prompts), connect a Custom Provider in the Trusys UI instead.

POST

applications

Create an application

curl --request POST \
  --url https://backend.trusys.ai/api/external/applications \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "name": "Customer Support Bot",
  "description": "Production chatbot for billing and account questions"
}
'

import requests

url = "https://backend.trusys.ai/api/external/applications"

payload = {
    "name": "Customer Support Bot",
    "description": "Production chatbot for billing and account questions"
}
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    name: 'Customer Support Bot',
    description: 'Production chatbot for billing and account questions'
  })
};

fetch('https://backend.trusys.ai/api/external/applications', 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://backend.trusys.ai/api/external/applications",
  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' => 'Customer Support Bot',
    'description' => 'Production chatbot for billing and account questions'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($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://backend.trusys.ai/api/external/applications"

	payload := strings.NewReader("{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	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://backend.trusys.ai/api/external/applications")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://backend.trusys.ai/api/external/applications")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"Customer Support Bot\",\n  \"description\": \"Production chatbot for billing and account questions\"\n}"

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

{
  "success": true,
  "data": {
    "id": "550e8400-e29b-41d4-a716-446655440000",
    "createdAt": "2026-07-02T12:00:00.000Z"
  }
}

{
  "success": false,
  "message": "Invalid request body",
  "errors": [
    {
      "path": "name",
      "message": "name is required"
    }
  ]
}

{
  "message": "Error while verifying api key"
}

{
  "success": false,
  "message": "Application with this name already exists."
}

Authorizations

x-api-key

string

header

required

Your Trusys API key. Create and manage keys in the Trusys UI under Settings → API Keys.

Include the key on every request:

x-api-key: <your-api-key>

Body

application/json

Display name and optional description for the application.

Payload for registering a new application.

name

string

required

Display name for the application. Must be unique.

Minimum string length: 1

Example:

"Customer Support Bot"

description

string

Optional longer description of what this application does.

Example:

"Production chatbot for billing and account questions"

Response

Application created successfully.

success

boolean

Example:

true

data

object

Show child attributes