Changelog & Announcements

OpenAI Compatible

What's new and notable:

  • 31 Aug 2025 — Our Discord server and Telegram channel are live! Telegram Discord
  • 31 Aug 2025 — API 7 (Claude Code 2) released. Click to view details.
  • 31 Aug 2025 — API 1 fixed! Click to view details.
  • 30 Aug 2025 — 🇹🇷 On August 30th, Victory Day, we celebrate the triumph that secured Turkey's independence and honor Mustafa Kemal Atatürk and all the heroes who made it possible.
  • 30 Aug 2025 — Claude Code released. Click to view details.
  • 29 Aug 2025 — API 6 added. Click to view details.
  • 26 Aug 2025 — CodeFast API launched.
import OpenAI from "npm:openai";

const client = new OpenAI({
  apiKey: "key-xxxxxx", // Your API key
  baseURL: "https://api.codefast.app/v1", // Pick API 1..9
});

const res = await client.chat.completions.create({
  model: "gpt-5", // Choose a model from the card
  messages: [
    { role: "system", content: "You are a helpful assistant." },
    { role: "user", content: "Hello!" }
  ]
});

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

Claude Code

CLI

Use Claude Code CLI with CodeFast endpoints.

Base URL
https://claudecode.codefast.app
Daily Limit
100 messages per user

Quickstart:

# Install CLI
npm install -g @anthropic-ai/claude-code

# Configure for CodeFast (PowerShell)
$env:ANTHROPIC_BASE_URL = "https://claudecode.codefast.app"
$env:ANTHROPIC_API_KEY = "key-xxxxxx"

# Persist (PowerShell, per-user)
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_API_KEY", "key-xxxxxx", "User")
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "https://claudecode.codefast.app", "User")

# Launch
claude

Note: You may need to sign in to Claude once with your own Anthropic account first. After that, our API settings above are used.

API 1 · Main API

OpenAI Compatible
Base URL
https://api.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

gpt-4oo3-minigpt-4.1o3gpt-5-chatgpt-5-model-routergpt-5gpt-5-miniclaude-sonnet-4-20250514gemini-2.5-progemini-2.5-flashgrok-4-latest

API 2

OpenAI Compatible
Base URL
https://api2.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

deepseek-ai/DeepSeek-V3.1DeepSeek-V3.1-thinkgmoonshotai/Kimi-K2-Instructopenai/gpt-oss-120bQwen/Qwen3-Coder-480B-A35B-Instructzai-org/GLM-4.5zai-org/GLM-4.5-Airzai-org/GLM-4.5V

API 3

OpenAI Compatible
Base URL
https://api3.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

claude-4.0-sonnetclaude-4.0-sonnet-thinkgpt-5gpt-5-high

API 4 · Stable Claude

OpenAI Compatible

Stable Claude Sonnet 4 service.

Base URL
https://claude.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

claude-sonnet-4-20250514

API 5

OpenAI Compatible
Base URL
https://api5.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

openai/gpt-oss-120bopenai/gpt-oss-20bQwen/Qwen3-Coder-480B-A35B-InstructQwen/Qwen3-235B-A22B-Instruct-2507Qwen/Qwen3-235B-A22B-Thinking-2507deepseek-ai/DeepSeek-V3.1meta-llama/Llama-3.1-8B-Instructdeepseek-ai/DeepSeek-V3-0324meta-llama/Llama-3.3-70B-Instructdeepseek-ai/DeepSeek-R1-0528moonshotai/Kimi-K2-Instructmeta-llama/Llama-4-Scout-17B-16E-Instructmicrosoft/Phi-4-mini-instruct

API 6

OpenAI Compatible
Base URL
https://api6.codefast.app/v1
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible · RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

claude-3-7-sonnet-20250219DeepSeek-V3.1moonshotai/Kimi-K2-Instructopenai-gpt-oss-120bopenai/gpt-oss-120bzai-org/GLM-4.5zai-org/GLM-4.5-Air-FP8gpt-oss-120bgpt4.1

API 9

OpenAI Compatible Very Fast
Base URL
http://api9.codefast.app/
API Key
key-xxxxxx
SDKs
General OpenAI SDK compatible - RooCode / Cline / KiloCode
Provider
OpenAI Compatible

Models:

openai/gpt-oss-120b moonshotai/Kimi-K2-Instruct zai-org/GLM-4.5 Qwen/Qwen3-Coder-480B-A35B-Instruct-Turbo deepseek-ai/DeepSeek-R1-0528-Turbo deepseek-ai/DeepSeek-V3-0324-Turbo meta-llama/Llama-4-Maverick-17B-128E-Instruct-Turbo

API 7 — Claude Code 2

CLI

Works with Claude Code and the Anthropic provider in Cline/RooCode. Although the model appears as Sonnet 4, it actually runs the GLM4.5 model under the hood.

Base URL
https://claudecode2.codefast.app
Daily Limit
100 messages per user

Quickstart:

# Install CLI
npm install -g @anthropic-ai/claude-code

# Configure for CodeFast (PowerShell)
$env:ANTHROPIC_BASE_URL = "https://claudecode2.codefast.app"
$env:ANTHROPIC_API_KEY = "key-xxxxxx"

# Persist (PowerShell, per-user)
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_API_KEY", "key-xxxxxx", "User")
[System.Environment]::SetEnvironmentVariable("ANTHROPIC_BASE_URL", "https://claudecode2.codefast.app", "User")

# Launch
claude

Note: You may need to sign in to Claude once with your own Anthropic account first. After that, our API settings above are used.

Chat Interface

Access: API key
URL
https://chat.codefast.app/
Access Code
key-xxxxxx

Models available:

Mistral Medium 3.1Claude Sonnet 4GPT-5Deepseekv3Gemini 2.5 FlashLlama 4.0 MaverickGrok 4DeepSeek R1Gemini 2.5 ProMagistral
Open Chat

AI Image Generation

Access: API key
URL
https://imagegen.codefast.app/
Access Code
key-xxxxxx

Models:

GPT-Image-1Kontext-FluxGemini 2.5 Flash Image Preview (Nano-Banana)
Open Image Studio