# Patter | Documentation

## Docs

- [Core Concepts](https://docs.getpatter.com/concepts.md): What Patter is, how a voice call flows through it, and the building blocks you'll use
- [Dashboard](https://docs.getpatter.com/dev-tools/dashboard.md): Real-time call monitoring dashboard with cost and latency tracking.
- [Tunneling](https://docs.getpatter.com/dev-tools/tunneling.md): Expose your local Patter server to the internet for Twilio webhooks.
- [Welcome](https://docs.getpatter.com/home/index.md): Give your AI agent a phone number. Patter handles telephony, speech-to-text, and text-to-speech so you can focus on your agent.
- [Python SDK](https://docs.getpatter.com/home/redirects/python.md): Voice AI SDK for Python
- [TypeScript SDK](https://docs.getpatter.com/home/redirects/typescript.md): Voice AI SDK for TypeScript
- [Agents](https://docs.getpatter.com/python-sdk/agents.md): Configure voice AI agents with system prompts, tools, engines, and guardrails.
- [Call logging](https://docs.getpatter.com/python-sdk/call-logging.md): Opt-in per-call filesystem logs: metadata, transcripts, and operational events.
- [Carrier](https://docs.getpatter.com/python-sdk/carrier.md): Telephony providers: Twilio and Telnyx.
- [Configuration](https://docs.getpatter.com/python-sdk/configuration.md): All Patter constructor parameters for local mode.
- [Dashboard](https://docs.getpatter.com/python-sdk/dashboard.md): Embedded web dashboard for real-time call monitoring, analytics, and data export.
- [Engines](https://docs.getpatter.com/python-sdk/engines.md): End-to-end speech-to-speech runtimes (OpenAI Realtime, ElevenLabs ConvAI).
- [Events](https://docs.getpatter.com/python-sdk/events.md): React to call lifecycle events with async callbacks.
- [Advanced Features](https://docs.getpatter.com/python-sdk/features.md): Recording, AMD, DTMF, call transfer, barge-in, and more.
- [Guardrails](https://docs.getpatter.com/python-sdk/guardrails.md): Filter and control AI responses before they reach the caller.
- [LLM](https://docs.getpatter.com/python-sdk/llm.md): Pick an LLM provider the same way you pick STT and TTS.
- [Local Mode](https://docs.getpatter.com/python-sdk/local-mode.md): Run a fully self-hosted voice AI server with your own telephony and AI provider keys.
- [Metrics & Cost Tracking](https://docs.getpatter.com/python-sdk/metrics.md): Per-call cost breakdown, latency analytics, and real-time metrics.
- [Python SDK](https://docs.getpatter.com/python-sdk/overview.md): Connect AI agents to phone numbers with 4 lines of Python.
- [PatterTool — phone as a tool](https://docs.getpatter.com/python-sdk/patter-tool.md): Wrap a Patter instance so external agents (LangChain, OpenAI Assistants, Anthropic Claude, Hermes, MCP) can place real phone calls as a single tool invocation.
- [AssemblyAI STT](https://docs.getpatter.com/python-sdk/providers/assemblyai.md): Universal Streaming speech-to-text via AssemblyAI's v3 WebSocket API.
- [Cartesia](https://docs.getpatter.com/python-sdk/providers/cartesia.md): Cartesia STT (ink-whisper) and TTS (sonic) providers. Ported from LiveKit Agents.
- [ElevenLabs WebSocket](https://docs.getpatter.com/python-sdk/providers/elevenlabs-websocket.md): Opt-in low-latency WebSocket variant of ElevenLabsTTS. Drop-in API, saves ~50 ms per utterance.
- [LMNT TTS](https://docs.getpatter.com/python-sdk/providers/lmnt.md): Blizzard and Aurora TTS models via the LMNT HTTP API.
- [Rime TTS](https://docs.getpatter.com/python-sdk/providers/rime.md): Arcana and Mist model families via Rime's HTTP endpoint.
- [Quickstart](https://docs.getpatter.com/python-sdk/quickstart.md): Give your AI agent a phone number in four lines of Python.
- [API Reference](https://docs.getpatter.com/python-sdk/reference.md): Complete reference for all classes, methods, parameters, and types in the Patter Python SDK.
- [STT](https://docs.getpatter.com/python-sdk/stt.md): Speech-to-text providers supported by Patter.
- [Test Mode](https://docs.getpatter.com/python-sdk/test-mode.md): Interactive terminal testing for voice agents without telephony, STT, or TTS.
- [Tools & Function Calling](https://docs.getpatter.com/python-sdk/tools.md): Let your voice agent call APIs, query databases, and take actions during a conversation.
- [Tracing (OpenTelemetry)](https://docs.getpatter.com/python-sdk/tracing.md): Opt-in OpenTelemetry tracing for STT, LLM, TTS, and tool calls.
- [TTS](https://docs.getpatter.com/python-sdk/tts.md): Text-to-speech providers supported by Patter.
- [Agents](https://docs.getpatter.com/typescript-sdk/agents.md): Define your agent's voice, model, tools, and behavior for phone calls.
- [Call logging](https://docs.getpatter.com/typescript-sdk/call-logging.md): Opt-in per-call filesystem logs: metadata, transcripts, and operational events.
- [Carrier](https://docs.getpatter.com/typescript-sdk/carrier.md): Telephony providers: Twilio and Telnyx.
- [Configuration](https://docs.getpatter.com/typescript-sdk/configuration.md): Constructor options for local mode.
- [Dashboard](https://docs.getpatter.com/typescript-sdk/dashboard.md): Embedded web dashboard for real-time call monitoring, analytics, and data export.
- [Engines](https://docs.getpatter.com/typescript-sdk/engines.md): End-to-end speech-to-speech runtimes (OpenAI Realtime, ElevenLabs ConvAI).
- [Events](https://docs.getpatter.com/typescript-sdk/events.md): React to call lifecycle events with typed callbacks.
- [Advanced Features](https://docs.getpatter.com/typescript-sdk/features.md): Recording, AMD, DTMF, call transfer, barge-in, variables, and conversation history.
- [Guardrails](https://docs.getpatter.com/typescript-sdk/guardrails.md): Filter and control AI agent responses before they reach callers.
- [LLM](https://docs.getpatter.com/typescript-sdk/llm.md): Pick an LLM provider the same way you pick STT and TTS.
- [Local Mode](https://docs.getpatter.com/typescript-sdk/local-mode.md): Self-hosted embedded server, webhook endpoints, and WebSocket streams.
- [Metrics & Cost Tracking](https://docs.getpatter.com/typescript-sdk/metrics.md): Per-call cost breakdown, latency analytics, and real-time metrics.
- [TypeScript SDK](https://docs.getpatter.com/typescript-sdk/overview.md): Connect AI agents to phone numbers with 4 lines of TypeScript.
- [PatterTool — phone as a tool](https://docs.getpatter.com/typescript-sdk/patter-tool.md): Wrap a Patter instance so external agents (LangChain, OpenAI Assistants, Anthropic Claude, Hermes, MCP) can place real phone calls as a single tool invocation.
- [AssemblyAI STT](https://docs.getpatter.com/typescript-sdk/providers/assemblyai.md): Universal Streaming speech-to-text via AssemblyAI's v3 WebSocket API.
- [Cartesia STT](https://docs.getpatter.com/typescript-sdk/providers/cartesia.md): Streaming speech-to-text via Cartesia's ink-whisper model.
- [ElevenLabs WebSocket TTS](https://docs.getpatter.com/typescript-sdk/providers/elevenlabs-websocket.md): Opt-in WebSocket variant of ElevenLabsTTS that trims HTTP setup latency.
- [LMNT TTS](https://docs.getpatter.com/typescript-sdk/providers/lmnt.md): Blizzard and Aurora TTS models via the LMNT HTTP API.
- [Rime TTS](https://docs.getpatter.com/typescript-sdk/providers/rime.md): Arcana and Mist model families via Rime's HTTP endpoint.
- [Quickstart](https://docs.getpatter.com/typescript-sdk/quickstart.md): Give your AI agent a phone number in four lines of TypeScript.
- [API Reference](https://docs.getpatter.com/typescript-sdk/reference.md): Complete type definitions, interfaces, error classes, and exports.
- [STT](https://docs.getpatter.com/typescript-sdk/stt.md): Speech-to-text providers supported by Patter.
- [Test Mode](https://docs.getpatter.com/typescript-sdk/test-mode.md): Test your agent in the terminal without telephony, STT, or TTS.
- [Tools](https://docs.getpatter.com/typescript-sdk/tools.md): Function calling, webhook tools, and system tools for voice agents.
- [Tracing (OpenTelemetry)](https://docs.getpatter.com/typescript-sdk/tracing.md): Opt-in OpenTelemetry tracing for STT, LLM, TTS, endpointing, barge-in, and tool calls.
- [TTS](https://docs.getpatter.com/typescript-sdk/tts.md): Text-to-speech providers supported by Patter.