Open-source voice AI platform you can self-host — a visual workflow builder, bring-your-own STT/LLM/TTS models, telephony, and no per-minute platform lock-in.
Audio & VoiceFreemium
Telephony
Places and answers real phone calls, wired into numbers, SMS and the phone network itself.
10 apps and 3 MCP servers tagged Telephony.
Apps
A personal AI representative with its own phone number, inbox and computer that takes calls, works your email and runs tasks under rules you set.
Business & ProductivityFreemium
AI executive assistant for founders that schedules meetings, writes the follow-ups and even places phone calls - over SMS, email and Slack, with no new app to install.
Business & ProductivitySubscription
Developer platform for AI agents on Apple's own channels — programmable iMessage at scale, plus video agents that answer and place FaceTime calls in a few lines of code.
Audio & VoicePaid
A B2B database of hundreds of millions of contacts plus the sequencing, dialling, and AI to work them.
Marketing & SalesFreemium
Enterprise phone agents on self-hosted models, tuned for human-sounding delivery at very large call volumes.
Automation & WorkflowsSubscription
Build, test, and monitor production phone agents — with the testing and analytics that call centres actually require.
Automation & WorkflowsFreemium
A developer platform for voice agents that make and take phone calls, with sub-second turn latency.
Automation & WorkflowsFreemium
Voice and text AI agents that run multi-week outbound calling campaigns for home-service businesses.
Marketing & SalesSubscription
AI receptionist that answers every call and WhatsApp message for local service businesses, 24/7.
Automation & WorkflowsSubscription
MCP servers
Infobip's official MCP servers for omnichannel messaging — one endpoint per channel across SMS, WhatsApp, RCS, Viber, Email, Voice and mobile push, plus 2FA.
3 views
Bird's official MCP server for email, SMS, WhatsApp and voice — send and inspect messages, run OTP verification, and manage domains, senders and numbers.
2 views
MCP: Vapi MCP Server
by Vapi
Vapi's official MCP server for building voice agents — create assistants, place and schedule outbound phone calls, and manage phone numbers from your AI client.
2 views
Related tags
Tags that appear alongside this one, ranked by how often.