Build on the best without sacrificing agility, control or quality. Build on the Telnyx API.

Communicate with Context
Streamline Workflows
Gather Better Insights

From Zero to Universal Communications in T-minus...

Faster Development

With the Telnyx developer API, we give you the building blocks to implement real-time communications in your apps. Our open endpoints support the provisioning and porting of phone numbers and voice connections as well as programmable text messaging functionality, to name a few.

Delight your Users

The RTC technology you embed into your application is only as good as the network behind it. The Telnyx private backbone pulls communications off the public internet at one of our globally distributed points of presence and delivers them via a Tier-1 network for fast, reliable connections every time.

Programmatic Connections

Bring users together. Don’t let development stand in the way.
In-App Support

Don’t make your users go searching for a contact number. Make your organization truly reachable by giving users support tools inside your application.

Inside Sales

Salespeople are on the phone all day long. Simplify their workflows by embedding calls directly into sales intelligence, lead management and CRM applications.

Mobile Workforce

Notify mobile workers and connect them with their customers inside their workforce app.

Social Platforms

Capture more user attention and interaction with full in-app voice and messaging.


Buyers always have issues and questions. Embed customized shopping assistance in-app or right in their personal browsing experience.


Embed real-time communications technology for true team collaboration.

Telnyx is the easiest partner to work with! The platform as a whole is fantastic, which also includes their backend team. Start a chat if you have an issue (which is very rare), and they are there to assist. We basically call our partnership "set it and forget it" with Telnyx. Their API engine and access are superb as well!

Shaun L.
Managing Partner

Developer Tested API

Real-time communications by developers, for developers. Build SMS messaging and voice communications into your applications with our developer-friendly API. The API exposes the full functionality of the Telnyx system, enabling both programmable communication delivery and configuration. We handle the complexity of routing and delivery while you deliver a high quality user experience.
// Create a connection for the LA Office
// Anchor at San Jose PoP, use SRTP and enable ISUP headers

curl -X POST \
  --header "Content-Type: application/json" \
  --header "Accept: application/json" \
  --header "x-api-token: API_TOKEN" \
  --header "x-api-user: API_USER" \
  --data '{
      "connection_name": "LA Office",
      "active": true,
      "dnis_number_format": 0,
      "anchorsite_override": "San Jose, CA",
      "encrypted_media": "SRTP",
      "default_routing_method": "round-robin",
      "isup_headers_enabled": true
    }' \

Applications Embedded Communications Features

Outbound Calling

Untether users from their device and give them true in-app calling.


Real-time communications in one of the most used apps—the internet browser.

Number Search

Search, purchase and provision local and international phone numbers all in our API.

Programmable SMS

For when alerts, reminders and authentication can’t go undelivered.

24/7 Service

Our support engineers are available around the clock for troubleshooting and support.

High Performing Network

Our network continuously pings PoP and connections to find the path of least latency.

Global, Local Reach

Get local numbers in 60 countries around the world.

A La Carte Pricing

Next-generation solutions at wholesale rates without getting locked into a contract.

Ready to get started? Our engineers are standing by 24/7

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