Connect your AI agent to Captions
Captions provides the Mirage API for generating videos and speech and adding styled captions to videos.
Set it up in Melso
- 1In Melso, open Settings → Agent Apps and hit Connect on Captions.
- 2Finish the API_KEY sign-in in the window that opens. Melso stores the connection, not your credentials.
- 3Open your agent, go to its Agent Apps tab, and allow Captions.
- 4Give the agent a task. It calls Captions itself when the work needs it.
What Captions gives your agent
The tools, permissions, and events Captions exposes — the same ones your agent can use once the app is authorized.
What you sign in with
Captions connects with API_KEY.
Permissions
Captions does not break access down into granular permissions.
Tools Captions exposes
Add Captions
Start an asynchronous job that transcribes and renders a selected caption style onto an uploaded or existing completed video. Use CAPTIONS_GET_VIDEO_STATUS to monitor the returned job, then CAPTIONS_DOWNLOAD_VIDEO when it completes. This call consumes paid Mirage credits and cannot be cancelled or deleted once submitted.
Download Video
Download the MP4 content of a completed video job and return an offloaded file reference. Use CAPTIONS_GET_VIDEO_STATUS first to confirm the job is COMPLETE.
Generate Speech
Generate WAV speech synchronously from text using a known Mirage voice ID and return an offloaded audio file reference. This call consumes paid Mirage credits and cannot be cancelled or deleted once submitted.
Generate Video
Start an asynchronous Mirage Video 1 job that animates a portrait image using speech audio. Use the returned job ID with CAPTIONS_GET_VIDEO_STATUS. This call consumes paid Mirage credits and cannot be cancelled or deleted once submitted.
Get Caption Template
Retrieve one caption style by ID, including its name and preview video URL.
Get Video Status
Retrieve the current state, progress, and error details for a video generation or captioning job.
List Caption Templates
Return one page of available caption styles, including names and preview video URLs.
List Videos
Return one page of video jobs owned by the connected Mirage account, including each job's status and progress.
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