Voice & Messaging
AI agents for voice calls, WhatsApp, SMS, and messaging channel automation. These tools handle real-time speech-to-text, turn-taking, TTS, and multi-channel routing — enabling phone agents that sound human and messaging bots that feel native. Critical for customer-facing voice and chat automation.
AssemblyAI
Speech recognition API with real-time and batch transcription plus audio intelligence models for summarization, topic d…
Bird MCP Server
Lets agents send and track email, SMS, WhatsApp, and voice through Bird, set up domains, senders, and numbers, and mana…
Bland AI
Deploys enterprise AI phone agents that handle inbound and outbound calls in 40+ languages with SOC2, HIPAA, and PCI DS…
Cartesia
Delivers ultra-low-latency text-to-speech and speech-to-text through the Sonic model family, with a voice-agent framewo…
Deepgram
Speech-to-text and voice AI API with real-time streaming transcription, speaker diarization, and text-to-speech for voi…
Dograh
Builds and self-hosts voice AI agents with a visual workflow builder, telephony, and bring-your-own-key speech-to-speec…
Fireflies MCP
Lets agents search and read Fireflies meeting transcripts, summaries, and action items over a hosted OAuth MCP server,…
Kapso
WhatsApp AI agent platform. Build and deploy conversational agents on WhatsApp Business API with no-code flows, LLM int…
LiveKit Agents
Builds production realtime voice and video AI agents with WebRTC transport, turn detection, and STT/LLM/TTS pipelines.…
NanoClaw
Runs a personal assistant agent on the Claude Agent SDK in per-agent Docker containers, reachable from WhatsApp, Telegr…
Pipecat
Builds realtime voice and multimodal conversational agents in Python — orchestrates STT, LLM, and TTS pipelines with in…
Retell AI
Builds, tests, deploys, and monitors natural-sounding AI voice agents with ~600ms latency for scheduling, support, and…
Spectrum
npm SDK connecting AI agents to iMessage, WhatsApp, Telegram, Slack, Discord, and Instagram via a single unified API —…
Speko
Unified routing API for voice models across providers, giving voice agents one interface for speech-to-text, text-to-sp…
Telegram MCP
MCP server giving AI agents programmatic access to Telegram — send messages, manage chats, interact with bots, and moni…
TEN Framework
Builds realtime conversational voice AI agents with a low-latency, multimodal framework in C, Go, and Python. Handles a…
Vapi
Voice AI platform for building production phone agents. Handles real-time STT, TTS, turn-taking, and LLM orchestration.…
Voicebox
Runs a local voice studio for voice cloning, text-to-speech and Whisper dictation, and lets agents speak or transcribe…