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Stack Overflow Generic | SignalWireStack Overflow Generic | SignalWire

We have the APIs

Built by developers for developers, SignalWire has spent decades solving the most complex problems in communications to make it easy for you. Whether it is voice, messaging, or video, we have the best-in-class APIs and SDKs to create unique and intelligent communication experiences from within existing applications or websites.

One Platform - Integrated APIs

Our platform spans voice, video, and messaging APIs that all work together. You don't have to deal with disparate code.

XML
Backwards-Compatible APIs

If you're more comfortable with REST rather than WebSockets or already use TwiML, our APIs make switching easy. They are like TwiML but so much better.

Conversational AI

Create persistent, bi-directional connections between your video and voice apps and get 300% more responsiveness. Plus, gain far more granular control than you get with HTTP + REST. 

Innate Programmability

For any call, your application may want to record it, turn it into a conference, or invoke other functions in real-time. Our network has no "dumb" switching nodes - as long as a call is in our network, it is under the full control of our APIs without requiring an external PBX, call center, or other equipment.

Voice APIs

Build the next generation of voice communications on an advanced cloud platform. Our APIs and SDKs make it simple to integrate voice capabilities into your own application, third-party applications, or existing voice over IP (VoIP) infrastructure.

Messaging APIs

SignalWire SMS APIs make it easy to move your SMS traffic with ease. Why? So you can save money. We provide complimentary step-by-step guidance through our Campaign Registry wizard and real-time access to our Carrier Operations team should you have any questions. 

Video APIs

Integrate video conferencing rooms that host 500 active participants, run in the browser, work within your existing stack, and support up to 1080p...without devouring bandwidth and CPU on your users' devices.

Creators of the #1 Open-Source
Telecom Stack

Known as the Original Geeks of Software-Defined Telecom, we built and maintain FreeSWITCH: the open-source telecom stack the other telecom stacks are built on. Vonage, Five9, Cerner, Home Depot, Cisco, Plivo, and thousands more have our open-source project at the core of their most sophisticated telecom apps.

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