API Docs

Build on every AI model through one API.

All Model gives you an OpenAI-compatible gateway for routing requests across upstream providers, managing API keys, enforcing quotas, and tracking usage from one operational console.

OpenAI-compatible

Point existing SDKs to one base URL and switch models with the model parameter.

Multi-provider routing

Aggregate OpenAI, Claude, Gemini, DeepSeek and more behind one API surface.

Quota and billing

Track usage by key, model, group, channel, and customer in one dashboard.

Quick start

Create an API key

Open the console, create an API key, and scope it to the models or groups your application should access.

Set the base URL

Use https://api.allmodel.co/v1 as the base URL in OpenAI-compatible clients.

Send a request

Call chat completions, responses, embeddings, or model endpoints using the same Bearer token.

bash

curl https://api.allmodel.co/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "gpt-4o",
    "messages": [
      {"role": "user", "content": "Explain model routing in one sentence."}
    ],
    "stream": false
  }'

Authentication

Every request must include an API key in the Authorization header. Keep keys on your server and rotate them if they are exposed.

http

Authorization: Bearer YOUR_API_KEY

Security tip: Do not ship API keys in browser apps, mobile bundles, public repositories, or customer-visible logs.

Core endpoints

POST/v1/chat/completionsChat completions for OpenAI-compatible clients.

POST/v1/responsesResponses-style workflows for compatible models.

GET/v1/modelsList models available to the current API key.

POST/v1/embeddingsGenerate embeddings through supported upstream providers.

SDK example

Existing OpenAI SDK integrations usually only need a new base URL and API key.

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.ALLMODEL_API_KEY,
  baseURL: "https://api.allmodel.co/v1"
});

const completion = await client.chat.completions.create({
  model: "gpt-4o",
  messages: [{ role: "user", content: "Hello from All Model" }]
});

console.log(completion.choices[0].message.content);

Model providers

OpenAI

gpt-4o, o3, o4-mini

Chat, vision, reasoning

Anthropic

claude-3.5-sonnet, claude-3-haiku

Chat, long context

Google

gemini-2.0-flash, gemini-1.5-pro

Multimodal, long context

DeepSeek

deepseek-chat, deepseek-reasoner

Chat, code, reasoning

Open source

llama, qwen, mistral families

Cost-effective alternatives

Model availability depends on enabled upstream channels, user group, account quota, and platform policy.

Quotas and rate limits

Per key

Limit traffic by API key and revoke keys without changing other integrations.

Per group

Apply different model permissions and quota policies to customer groups.

Per model

Control expensive or sensitive models separately from low-cost defaults.

FAQ

Can I use the official OpenAI SDK?

Yes. Configure the SDK baseURL to your All Model endpoint and use your All Model API key.

How do I choose a model?

Set the model field in each request. Availability depends on your key, group, plan, and enabled upstream channels.

How are costs calculated?

Usage is calculated from model pricing, token usage, quotas, and any billing rules configured for your account or plan.

What happens if an upstream provider fails?

Routing and fallback behavior depends on your configured channels and platform policy. Failed requests return structured errors for easy handling.

Need pricing details? Visit the pricing page.