Signa AI API
Add sign language to your product. Send text, a recording or live audio, and get a signing avatar back, as signs your app draws, a video, or a feed for your broadcast. The same engine as the Signa AI apps.
What you can build
Signing in your app or website
Text in, signs out a word at a time, so the avatar starts while the sentence is still arriving.
Signed videos
An MP4 of the avatar signing any text, in your colours, for social, e-learning or archives.
Live events
Stream a speaker's audio and get the signing back while they are still talking.
Television
Sign news, recorded shows and live programmes, on air and on your app and website.
How it works
- Words in. Text, or speech we transcribe first (Kinyarwanda, English, French, Swahili, Japanese).
- Signs out. Each word becomes a short clip of body and hand positions in Signa's compact
.sgnformat. Words that have been signed before come back almost instantly. - On screen. Play the signs in your own player, ask us for a video, or show the Signa avatar in your broadcast.
The basics
| Details | |
|---|---|
| Base URL | https://api.usesigna.org/v1 |
| Authentication | A bearer key: Authorization: Bearer sk_live_… |
| Requests | JSON, except audio uploads (multipart) and video exports (the .sgn file as the body) |
| Live | wss://api.usesigna.org/v1/live |
| Usage | Counted per month: characters signed, live minutes and videos |
Plans are agreed with you
The API is for businesses and broadcasters, and every plan is shaped around what you need. Most teams start with a trial key for about a month. How access works.