vapi

The spend meter, cost/margin, & budget gate for AI voice agents. Meters STT + TTS + LLM + telephony per call, out of the box (Pipecat, LiveKit — Python & TypeScript). Hard-stops the next turn before it crosses your ceiling. Local, no account, no telemetry. Built by Floe.

A set of skills and MCP connector to allow agents to build Vapi AI agents, from creating tools and assistants to a phone call

Open Source AI Database for Voice Agent Transcripts | Call Analysis & Insights | Extraction | Labelling & Classification

Test harness for voice agents. Import from Retell, VAPI, Bland, LiveKit. Run autonomous simulations. Evaluate with LLM judges.

AR (Augmented Reading) for the meta llama 3 h4ckathon 🦙

Open-source evaluation platform for Voice AI agents. Import real conversations, score calls with LLMs, replay audio and transcripts, and track quality over time. Built for ElevenLabs, Vapi, and production voice agents.

I Built an AI Receptionist That Books Appointments (Claude SDK + Vapi)

A FastAPI-based backend service for a personal assistant voice agent integrated with Vapi AI. This project demonstrates how to build a structured API that handles todo lists, reminders, calendar events, and phone calls through voice commands processed by AI.

Open-source regression testing for voice agents: multi-turn scenarios, tool-call/content grading, latency gates, CI reports, and audio artifacts.

A unified benchmarking framework for evaluating Voice AI agents across conversational quality, audio realism, latency metrics, and safety guardrails with scalable multi-language stress testing.

A to Z Vapi's custom tools | All your voice agent needs

DevDuck is a sentiment-aware rubber duck agent.

Production voice-AI insurance-claims agent: VAPI telephony, Deepgram STT, GPT-4o tool-calling, ElevenLabs TTS, with pgvector FAQ RAG on Supabase. HIPAA-enabled, ~$0.24/call.

AI voice receptionist that answers calls 24/7, books appointments on Google Calendar, and sends SMS confirmations, built with Django, OpenAI, Vapi & Twilio. Includes a web dashboard, chat tester, and live-transcript voice widget.

Cost & margin ledger for voice ai

AI-powered support system for EV charging stations with LangGraph orchestration, multi-provider LLM support, and voice interface through VAPI integration for phone calling. This system allows users to check station status, reboot charging stations, and get assistance through text or voice interactions.

🎙️ Production-grade observability platform for Voice AI applications. Real-time monitoring, metrics collection, alerting & dashboards for LiveKit, Pipecat, VAPI. Built with OpenTelemetry, Prometheus, Grafana, TimescaleDB & Redis.

Kickstart your journey into AI-powered Software as a Service! In this session, you'll build the foundation for your first AI SaaS product, from idea to implementation.

A reference integration between Teler and VAPI, based on Media Streaming over WebSockets.

A real-time, low-latency Voice AI Assistant built with Vapi.ai, FastAPI, and LangChain, featuring a dynamic RAG pipeline powered by Supabase pgvector and Llama 3.3 70B for instant, document-grounded voice conversations.