# PayPerQ (PPQ) API

> Unified AI API gateway with 500+ models from all major providers. OpenAI-compatible endpoints, pay-per-query pricing (no subscriptions), and cryptocurrency payment support including Bitcoin Lightning.

PayPerQ provides a single OpenAI-compatible API for models from OpenAI, Anthropic, Google, xAI, Mistral, Meta, Deepseek, Qwen, and more. No subscriptions — pay only for what you use. Top up with crypto (Bitcoin Lightning, BTC, Monero, Litecoin, Liquid BTC) or card via Stripe.

- **Chat API Base URL**: `https://api.ppq.ai`
- **Audio API Base URL**: `https://ppq.ai/api/v1`
- **Authentication**: `Authorization: Bearer sk-YOUR_API_KEY`
- **Chat Endpoint**: `POST /v1/chat/completions`
- **Models & Pricing**: `GET /v1/models`

## Documentation

- [Full API Integration Guide](https://ppq.ai/llms-full.txt): Complete endpoint reference, code examples, billing, and topup API
- [API Documentation](https://ppq.ai/api-docs): Interactive API docs with code examples
- [Blog](https://ppq.ai/blog): Tutorials, guides, and announcements

## Integration Guides

- [Claude Code](https://ppq.ai/blog/using-claude-code-with-payperq)
- [OpenCode](https://ppq.ai/blog/using-opencode-with-payperq)
- [Cursor](https://ppq.ai/blog/using-cursor-with-payperq)
- [Cline](https://ppq.ai/blog/using-cline-with-payperq)
- [Aider](https://ppq.ai/blog/using-aider-with-payperq)
- [Roo](https://ppq.ai/blog/using-roo-with-payperq)
- [OpenWebUI](https://ppq.ai/blog/using-openwebui-with-payperq)
- [Goose](https://ppq.ai/blog/using-goose-with-payperq)