Vapi
Voice agent middleware for production phone and web agents
About
Full-stack platform for building, testing, and deploying voice AI agents. Handles real-time telephony, multi-provider LLM routing, interruption detection, and call analytics. Most-adopted voice agent infrastructure in production.
Choose Vapi when…
- •You're building phone or web voice agents with real-time conversation
- •You need multi-provider LLM + TTS + STT routing in one platform
- •You want production-grade call analytics and interruption handling
Builder Slot
Speech synthesis and recognition APIs — text-to-speech, speech-to-text, and real-time audio intelligence
Other tools in this slot:
Stack Genome Detection
AIchitect's Genome scanner detects Vapi in your project via these signals:
@vapi-ai/web@vapi-ai/server-sdkvapi_pythonVAPI_API_KEYIntegrates with (3)
Vapi calls LangGraph-hosted agents as the AI backbone for voice call handling and routing logic.
→ Build voice applications where complex agentic reasoning powers the full call flow.
Vapi uses ElevenLabs as its configurable TTS voice provider, selectable per agent or per call.
→ Give Vapi voice agents realistic, low-latency speech with ElevenLabs voice cloning library.
Alternatives to consider (3)
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