API gateway · v1

One endpoint.
Every model.

ALTapi routes your requests to 100+ LLMs through a single OpenAI-compatible API.

Get API key → Read docs
100+
models
99.9%
uptime
1
line to migrate
main.py
# point the SDK at ALTapifrom openai import OpenAI client = OpenAI(    api_key="sk-...",    base_url="https://api.altapi.ai/v1",  # only change) res = client.chat.completions.create(    model="claude-opus-4-8",    messages=[...],)
Why ALTapi

Three things. Nothing else.

I

Route

The cheapest capable model for every call.

II

Failover

Health-aware switching across providers. No user-facing errors.

III

Meter

Every call returns a receipt you can reconcile.

Metering

Every call leaves a receipt.

Model, route, tokens, cost, latency. One row per request.

{
  "request_id": "20260514_8a3f",
  "model":      "claude-opus-4-8",
  "route":      "us-east-1",
  "tokens":     { "in": 1024, "out": 512 },
  "cost_usd":  0.0085,
  "latency_ms": 812
}
Models

100+ models. One key.

gpt-4o claude-opus-4-8 claude-sonnet-4-6 gemini-2.0-flash grok-3 deepseek-v3 llama-3.3-70b mistral-large qwen-2.5-72b o3-mini seedance-2.0 + 90 more
AI infrastructure

Token API, AI compute and global expansion

Explore model API integration, GPU resource selection, Middle East expansion and enterprise data handling.

Token API gateway AI compute Compute for global teams Middle East expansion AI data compliance
Public beta

Ship in one line.

Change base_url. Keep your SDK.

Get API key → See pricing