One balance. Leading AI models.

Build with AI without managing five provider accounts.

Antotech AI gives developers one OpenAI-compatible API, prepaid usage credits, transparent model rates, and access to current Claude and GPT model tiers.

Buy API credits Read the API docs

No subscription required$1 paid = $1 creditStripe-secured checkoutUsage-level ledger

What you get

A simpler model layer

Use one key for supported providers while Antotech handles routing, accounting, and a consistent OpenAI-style request format.

Unified API

Send familiar chat completion requests to one endpoint and choose a catalog model or the automatic router.

Prepaid control

No surprise monthly invoice. Your dashboard shows purchases, per-request usage, and remaining credit.

Provider flexibility

Move between supported Claude and GPT tiers without rebuilding authentication, billing, and usage tracking.

Model catalog

Current model families

View model pricing

Antotech

Auto Router

Routes each request to the best available model for quality, speed, and cost.

Anthropic

Claude Sonnet (current)

Balanced reasoning, coding, writing, and tool use.

Anthropic

Claude Opus (current)

Highest-capability Claude tier for complex reasoning and long tasks.

Prepaid credits

Pay only for what you use

Choose a fixed package or custom amount. Credit is added only after Stripe confirms a successful payment.

PREPAID CREDIT

$5 USD

$5 account balance
No subscription
Use across all models

PREPAID CREDIT

$10 USD

$10 account balance
No subscription
Use across all models

PREPAID CREDIT

$20 USD

$20 account balance
No subscription
Use across all models

PREPAID CREDIT

$50 USD

$50 account balance
No subscription
Use across all models

PREPAID CREDIT

$100 USD

$100 account balance
No subscription
Use across all models

CUSTOM CREDIT

$25 USD

Amount ($5–$5000)

$1 paid equals $1 in Antotech account credit. Credits are a prepaid service balance, have no cash value, and are fulfilled only after Stripe confirms payment.

Developer experience

One endpoint, familiar shape

Use your Antotech API key as a Bearer token. Requests and responses follow the OpenAI chat completions structure.

Integration guide

curl https://api.antotech.ai/api/v1/chat/completions \
  -H "Authorization: Bearer ant_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "antotech-auto",
    "messages": [
      {"role": "user", "content": "Hello"}
    ]
  }'