Patter
Open-source voice-AI SDK. The Vapi/Retell alternative for builders who want to own the stack. Give your AI agent a phone number in 4 lines — Python and TypeScript, MIT licensed, Twilio, Telnyx, and Plivo.
Ranked by AgentPick Score, our data score from public GitHub activity. Description is the project's own.
Topics: ai-agent, ai-phone-agent, hermes-agent, llm, mastra, open-source, openai, openclaw, python, realtime-api, sdk, speech-to-text
Starter prompt
Try Patter on one small, low-risk task: [task]. Tell me what worked, what didn't, and how long it took.
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