# Nolma ## Docs - [Error Codes](https://docs.nolma.ai/api-reference/errors.md): All Nolma error types and how to handle them - [Gateway API](https://docs.nolma.ai/api-reference/gateway.md): Transparent reverse proxy for all LLM providers - [Signal Endpoint](https://docs.nolma.ai/api-reference/signal.md): Send downstream user signals to power Lens analytics - [Alerts](https://docs.nolma.ai/guard/alerts.md): Get notified when budgets are hit or anomalies are detected - [Budget Rules](https://docs.nolma.ai/guard/budgets.md): Set hard limits that stop AI spend before it happens - [Guard Overview](https://docs.nolma.ai/guard/overview.md): Real-time cost monitoring and budget enforcement for AI agents - [What is Nolma?](https://docs.nolma.ai/introduction.md): AI gateway platform for cost monitoring, prompt intelligence, and security - [Lens Overview](https://docs.nolma.ai/lens/overview.md): Prompt intelligence powered by downstream user signals - [Shadow Mode](https://docs.nolma.ai/lens/shadow-mode.md): Test cheaper models on real traffic before switching - [Signal Collection](https://docs.nolma.ai/lens/signals.md): Collect downstream user signals to power Lens analytics - [Anthropic](https://docs.nolma.ai/providers/anthropic.md): Use Claude models through the Nolma gateway - [Google Gemini](https://docs.nolma.ai/providers/gemini.md): Use Gemini models through the Nolma gateway - [OpenAI](https://docs.nolma.ai/providers/openai.md): Use GPT models through the Nolma gateway - [Quickstart](https://docs.nolma.ai/quickstart.md): Integrate Nolma in 5 minutes - [Node.js SDK](https://docs.nolma.ai/sdk/node.md): Install and use the Nolma Node.js SDK - [Python SDK](https://docs.nolma.ai/sdk/python.md): Install and use the Nolma Python SDK ## OpenAPI Specs - [openapi](https://docs.nolma.ai/api-reference/openapi.json)