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
by AssemblyAI
Speech recognition API with real-time and batch transcription plus audio intelligence models for summarization, topic…
Bird MCP Server
by Bird
Lets agents send and track email, SMS, WhatsApp, and voice through Bird, set up domains, senders, and numbers, and…
Bland AI
by Bland
Deploys enterprise AI phone agents that handle inbound and outbound calls in 40+ languages with SOC2, HIPAA, and PCI…
Cartesia
by Cartesia
Delivers ultra-low-latency text-to-speech and speech-to-text through the Sonic model family, with a voice-agent…
CosVoice
by CosVoice
Provisions a dedicated US phone number and email address for an AI agent over MCP: place and answer calls, send texts…
Deepgram
by Deepgram
Speech-to-text and voice AI API with real-time streaming transcription, speaker diarization, and text-to-speech for…
Dograh
by Dograh HQ
Builds and self-hosts voice AI agents with a visual workflow builder, telephony, and bring-your-own-key…
Fireflies MCP
by Fireflies.ai
Lets agents search and read Fireflies meeting transcripts, summaries, and action items over a hosted OAuth MCP server…
Fish Audio
by Fish Audio
Generates speech, clones voices and transcribes audio through REST and WebSocket APIs backed by open-weight models, for…
Kapso
by Kapso
WhatsApp AI agent platform. Build and deploy conversational agents on WhatsApp Business API with no-code flows, LLM…
LiveKit Agents
by LiveKit
Builds production realtime voice and video AI agents with WebRTC transport, turn detection, and STT/LLM/TTS pipelines.…
NanoClaw
by NanoCo
Runs a personal assistant agent on the Claude Agent SDK in per-agent Docker containers, reachable from WhatsApp…
Pipecat
by Daily
Builds realtime voice and multimodal conversational agents in Python — orchestrates STT, LLM, and TTS pipelines with…
Retell AI
by Retell AI
Builds, tests, deploys, and monitors natural-sounding AI voice agents with ~600ms latency for scheduling, support, and…
Robylon
by Robylon
Handles customer support across chat, email, WhatsApp, tickets and voice; exposes a REST API for workflow and voice…
Spectrum
by Photon
npm SDK connecting AI agents to iMessage, WhatsApp, Telegram, Slack, Discord, and Instagram via a single unified API…
Speko
by Speko
Unified routing API for voice models across providers, giving voice agents one interface for speech-to-text…
Telegram MCP
by chigwell
MCP server giving AI agents programmatic access to Telegram — send messages, manage chats, interact with bots, and…
TEN Framework
by TEN
Builds realtime conversational voice AI agents with a low-latency, multimodal framework in C, Go, and Python. Handles…
Vapi
by Vapi
Voice AI platform for building production phone agents. Handles real-time STT, TTS, turn-taking, and LLM orchestration.…
Vidmoat
by Buzz Innovations Ltd
Edits video programmatically from agents over a remote MCP server and a REST v1 API: import media, run timeline…
Voicebox
by Jamie Pine
Runs a local voice studio for voice cloning, text-to-speech and Whisper dictation, and lets agents speak or transcribe…