patterai/patter (github)
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.
Trust score: 7.42/10 (tier: verified)
Stars: 1033, Forks: 110
License: MIT