curl --request POST \
  --url https://openrouter.ai/api/v1/api/alpha/decisions \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model": "<string>",
  "questions": {},
  "state": "<string>",
  "provider": {
    "allow_fallbacks": true
  },
  "session_id": "session-1234",
  "trace": {
    "trace_id": "trace-abc123",
    "trace_name": "my-app-trace"
  },
  "user": "<string>"
}
'

import requests

url = "https://openrouter.ai/api/v1/api/alpha/decisions"

payload = {
    "model": "<string>",
    "questions": {},
    "state": "<string>",
    "provider": { "allow_fallbacks": True },
    "session_id": "session-1234",
    "trace": {
        "trace_id": "trace-abc123",
        "trace_name": "my-app-trace"
    },
    "user": "<string>"
}
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({
    model: '<string>',
    questions: {},
    state: '<string>',
    provider: {allow_fallbacks: true},
    session_id: 'session-1234',
    trace: {trace_id: 'trace-abc123', trace_name: 'my-app-trace'},
    user: '<string>'
  })
};

fetch('https://openrouter.ai/api/v1/api/alpha/decisions', 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://openrouter.ai/api/v1/api/alpha/decisions",
  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([
    'model' => '<string>',
    'questions' => [
        
    ],
    'state' => '<string>',
    'provider' => [
        'allow_fallbacks' => true
    ],
    'session_id' => 'session-1234',
    'trace' => [
        'trace_id' => 'trace-abc123',
        'trace_name' => 'my-app-trace'
    ],
    'user' => '<string>'
  ]),
  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://openrouter.ai/api/v1/api/alpha/decisions"

	payload := strings.NewReader("{\n  \"model\": \"<string>\",\n  \"questions\": {},\n  \"state\": \"<string>\",\n  \"provider\": {\n    \"allow_fallbacks\": true\n  },\n  \"session_id\": \"session-1234\",\n  \"trace\": {\n    \"trace_id\": \"trace-abc123\",\n    \"trace_name\": \"my-app-trace\"\n  },\n  \"user\": \"<string>\"\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://openrouter.ai/api/v1/api/alpha/decisions")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"model\": \"<string>\",\n  \"questions\": {},\n  \"state\": \"<string>\",\n  \"provider\": {\n    \"allow_fallbacks\": true\n  },\n  \"session_id\": \"session-1234\",\n  \"trace\": {\n    \"trace_id\": \"trace-abc123\",\n    \"trace_name\": \"my-app-trace\"\n  },\n  \"user\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://openrouter.ai/api/v1/api/alpha/decisions")

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  \"model\": \"<string>\",\n  \"questions\": {},\n  \"state\": \"<string>\",\n  \"provider\": {\n    \"allow_fallbacks\": true\n  },\n  \"session_id\": \"session-1234\",\n  \"trace\": {\n    \"trace_id\": \"trace-abc123\",\n    \"trace_name\": \"my-app-trace\"\n  },\n  \"user\": \"<string>\"\n}"

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

{
  "answers": {},
  "model": "<string>",
  "usage": {
    "input_tokens": 123,
    "output_tokens": 123,
    "cost": 123
  },
  "id": "<string>",
  "provider": "<string>"
}

{
  "error": {
    "code": 400,
    "message": "Invalid request parameters"
  }
}

{
  "error": {
    "code": 401,
    "message": "Missing Authentication header"
  }
}

{
  "error": {
    "code": 402,
    "message": "Insufficient credits. Add more using https://openrouter.ai/credits"
  }
}

{
  "error": {
    "code": 403,
    "message": "Only management keys can perform this operation"
  }
}

{
  "error": {
    "code": 404,
    "message": "Resource not found"
  }
}

{
  "error": {
    "code": 413,
    "message": "Request payload too large"
  }
}

{
  "error": {
    "code": 429,
    "message": "Rate limit exceeded"
  }
}

{
  "error": {
    "code": 500,
    "message": "Internal Server Error"
  }
}

{
  "error": {
    "code": 502,
    "message": "Provider returned error"
  }
}

{
  "error": {
    "code": 503,
    "message": "Service temporarily unavailable"
  }
}

{
  "error": {
    "code": 524,
    "message": "Request timed out. Please try again later."
  }
}

{
  "error": {
    "code": 529,
    "message": "Provider returned error"
  }
}