SETIShopContact usLog in
Home
Sign up
Build Voice Experiences with AI-ready

Voice API

Deploy seamless voice experiences with ultra-low latency, transparent pricing, and full programmatic control at global scale.

Talk to an expertSign up
Man using voice api
Customer Logo Ooma
Customer Logo Replicant
Customer Logo Talkdesk
Customer Logo Aircall
WHY TELNYX?

Why leading companies are choosing Telynx Voice API

Whether you're adding voice to your product, launching a contact center, or building a voice AI agent, Telnyx gives you the control and performance to move fast with cost-efficient pricing. Use our flexible APIs to power customer calling, recording, real-time call flows and click-to-call.

140+

countries supported

25M+

API requests daily

10M+

call minutes per day
VOICE AI FOR DEVELOPERS

Build faster, scale easier, innovate freely.

Build and deploy your customized Voice AI experiences in days, not weeks. With Telnyx's comprehensive APIs and easy-to-use SDKs, you can effortlessly create intelligent, AI-powered call flows with no telephony expertise required. Go to market fast, scale rapidly, and keep your focus entirely on innovation.

Explore Dev Docs

Chat with a language model

  curl -i -X POST \
  https://api.telnyx.com/v2/ai/chat/completions \
  -H 'Authorization: Bearer YOUR_TELNYX_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "messages": [
      {
        "role": "user",
        "content": "Hello, World!"
      }
    ],
    "model": "mistralai/Mistral-7B-Instruct-v0.1"
  }'
Features

Powerful Voice API features

Telnyx Voice API gives developers everything they need to build scalable, reliable and programmable voice infrastructure.

Bi-directional streaming from client to server and server to client

Stream bi-directional RTP audio over secure WebSockets. Ideal for voice-AI assistants and real-time coaching platforms that analyse speech on the fly and deliver instant, context-aware feedback.

See all features
Explore
Use cases

Build Smarter Apps with Programmable Voice

UJET CTO Dave Bullock and coworker behind the UJET logo
CUSTOMER STORIES

Powering UJET's global voice expansion

UJET leveraged Telnyx’s TeXML Voice API and mobile WebRTC SDKs to launch compliant, high-quality voice services in Canada with features like call recording and real-time media streaming. With support from Telnyx’s global network and collaborative engineering, UJET expanded into new markets while delivering reliable and rich contact center experiences.

Read customer story →

PRICING
See our Voice API pricing

Customers can save up to 50% by switching to Telnyx with lower per-minute rates, automatic volume discounts, and no hidden fees.

Starting at

$0.002

per minute
See pricing
Sign up and start building.
Sign upTalk to an expert
FAQ

A Voice API is a tool that developers use to make and receive phone calls using an Application Programming Interface (API). A Voice API connects internet-based applications to the Public Switched Telephone Network (PSTN).