Build with the Lenout AI API.

01 · Overview

What is Lenout AI Platform?

It is a developer API for sending chat-completion requests to the Lenout-managed model. It keeps the familiar OpenAI request shape, while authentication, usage, and Lencon billing stay inside your existing Lenout account.

02 · Quick start

Make your first request.

1. 1
   Sign in to the Dashboard

   Your regular Lenout account works here—there is no separate developer sign-up.

2. 2
   Create an API key

   Name the key for the app or environment that will use it. Copy it immediately; the full value is shown once.

3. 3
   Store it on your server

   Put the key in an environment variable such as LENOUT_API_KEY.

4. 4
   Send a chat-completion request

   Use https://platform-staging.lenout.com/v1 as the SDK base URL.

import OpenAI from "openai"

const client = new OpenAI({
  baseURL: "https://platform-staging.lenout.com/v1",
  apiKey: process.env.LENOUT_API_KEY
})

const response = await client.chat.completions.create({
  model: "lenout-model",
  messages: [
    { role: "system", content: "You are a helpful assistant." },
    { role: "user", content: "Explain Lenout in one sentence." }
  ]
})

console.log(response.choices[0].message.content)

curl https://platform-staging.lenout.com/v1/chat/completions \
  -H "Authorization: Bearer lnai_your_key" \
  -H "Content-Type: application/json" \
  -d '{"model":"lenout-model","messages":[{"role":"user","content":"Hello!"}]}'

03 · Authentication

Authenticate with a Bearer key.

Every billable API request must include your Lenout API key in the Authorization header. Dashboard sessions and API keys serve different purposes: your browser session manages keys, while a key authenticates your server-to-server requests.

Authorization: Bearer lnai_your_key_here

04 · API reference

Generate one assistant message from a list of system, user, and assistant messages.

Request body

Example request

{
  "model": "lenout-model",
  "messages": [
    { "role": "system", "content": "Answer clearly and briefly." },
    { "role": "user", "content": "What can I build with this API?" }
  ],
  "temperature": 0.7,
  "max_tokens": 512
}

Example response

{
  "id": "chatcmpl-…",
  "object": "chat.completion",
  "created": 1787200000,
  "model": "lenout-model",
  "choices": [{
    "index": 0,
    "message": { "role": "assistant", "content": "You can build…" },
    "finish_reason": "stop"
  }],
  "usage": {
    "prompt_tokens": 24,
    "completion_tokens": 42,
    "total_tokens": 66
  }
}

Returns model IDs currently exposed by the Platform. This endpoint does not require an API key.

curl https://platform-staging.lenout.com/v1/models

05 · Models & pricing

Use the Lenout-managed model.

Prices are measured in Lencon per one million input or output tokens. The final charge is rounded up to a minimum of 1 Lencon per completed generation.

Use GET /v1/models as the runtime source of available model IDs.

06 · Lencon & billing

One wallet across Lenout.

Lencon is Lenout's closed-loop usage credit. Your AI requests and Community activity draw from the same wallet, so a top-up made in the Platform is visible in Lenout Community as well.

07 · Errors

Handle errors by code and status.

Error responses include an error.code and human-readable error.message. Your app should branch on the code, not the message text.

08 · Security

Keep every API key server-side.

Ready for your first request?

Create a named key and copy it to your server secret store.

Open dashboard →