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One API
All AI Models

Unified API access to Claude, GPT, Gemini and other leading models.

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Terminal

curl

https://www.free-api.ai/api/v1/responses

-H "Authorization: Bearer fa-..."

-H "Content-Type: application/json"

-d '{"model": "claude-sonnet-4-20250514",

"input": "Hello"}'

✓200 OK·1.2s·847 tokens

Supports All Major AI Models

Claude Opus 4.6Claude Sonnet 4.6Claude Sonnet 4.5Claude Haiku 4.5GPT-5.4GPT-5 CodexGPT-5Gemini 3 ProGemini 3 FlashGemini 2.5 ProGemini 2.5 FlashClaude Opus 4.6Claude Sonnet 4.6Claude Sonnet 4.5Claude Haiku 4.5GPT-5.4GPT-5 CodexGPT-5Gemini 3 ProGemini 3 FlashGemini 2.5 ProGemini 2.5 Flash

Unified API

Access all models with a single API key. Integrate with just one line of code.

Smart Routing

Automatically selects the optimal account and route with multi-channel redundancy. 99.9% availability.

Usage Analytics

Track token consumption and costs in real time, down to the model and key level.

Why Choose FreeAPI

Current Balance

$37.50

Used $12.50 / $50.0025%

1.2M

Tokens Today

328

Requests

$0.04

Avg Cost/Req

Built for Developers
AI Infrastructure

We believe AI should be as accessible as water and electricity. FreeAPI enables every developer to access world-class AI models at fair prices, so you can focus on building products — not managing API accounts.

From personal projects to enterprise applications, from prototyping to production — one platform, everything covered.

Developers

Enterprise

Need high-volume access or a custom plan? Contact us for enterprise discounts and support.

One APIAll AI Models