# TokenArmy

> Pay-as-you-go API for Claude models only. Native Anthropic Messages (/v1/messages), plus an OpenAI-compatible Chat Completions format (/v1/chat/completions) for clients that only speak OpenAI; both serve the same Claude models, streaming included. Billed per token from a prepaid USD balance. Other models (gpt-*, grok-*, ...) are rejected with 400 model_not_supported.

Base URL (Anthropic SDK, Claude Code): https://tokenarmy.shop
Base URL (OpenAI-compatible SDKs and clients): https://tokenarmy.shop/v1
Auth: Authorization: Bearer sk-ta-... or x-api-key: sk-ta-...

## Docs
- [Quick start](https://tokenarmy.shop/docs)
- [Authentication](https://tokenarmy.shop/docs/authentication)
- [Anthropic format](https://tokenarmy.shop/docs/anthropic)
- [OpenAI-compatible format](https://tokenarmy.shop/docs/openai)
- [Billing and balance API](https://tokenarmy.shop/docs/billing)
- [Errors](https://tokenarmy.shop/docs/errors)
- [Claude Code](https://tokenarmy.shop/docs/clients/claude-code)

## Models (USD per million tokens: input / output, multiplier on list price)
- claude-fable-5-1: 1.500 / 7.500 (0.15×)
- claude-opus-5-5: 0.500 / 2.500 (0.125×)
- claude-sonnet-5-5: 0.250 / 1.250 (0.125×)
- claude-fable-5: 1.500 / 7.500 (0.15×)
- claude-opus-5: 0.625 / 3.125 (0.125×)
- claude-opus-4-8: 0.625 / 3.125 (0.125×)
- claude-opus-4-6: 0.625 / 3.125 (0.125×)
- claude-sonnet-5: 0.525 / 2.625 (0.175×)
- claude-sonnet-4-6: 0.525 / 2.625 (0.175×)
- claude-haiku-4-5: 0.200 / 1.000 (0.2×)