
Patter
Open-source SDK for voice AI to connect any agent to real phone calls in 4 lines.

About Patter
Patter is an open-source SDK that lets you attach AI agents to live phone calls using Python or TypeScript. It is MIT-licensed and designed for sub-500 ms latency, enabling real-time voice interactions. The platform also offers a hosted Patter Cloud runtime with managed carriers for easier deployment.
Features
- Connect any AI agent to real phone calls in four lines of code.
- Python and TypeScript SDKs, MIT licensed.
- Sub-500 ms latency for real-time voice.
- Integrates with major services (Twilio, Telnyx, OpenAI Realtime, ElevenLabs, Deepgram, Anthropic, Cartesia).
- Open-source signal with a public repository.
- Patter Cloud hosted runtime and managed carriers.
Who Is It For?
- Developers building AI-powered voice agents needing real-time phone-call integration.
- Teams seeking an MIT-licensed, open-source voice infrastructure with optional hosted runtime.
Use Cases
- Inbound and outbound calls handled by a single agent pipeline.
- End-to-end voice pipelines with pluggable STT/LLMs/TTS components.
- Dev/test workflows with tunnel support and a built-in dashboard for monitoring.
Get started with Patter today