Captions · Rate Limits

Captions Rate Limits

Captions Rate Limits is the machine-readable rate-limit profile for Captions on the APIs.io network, conforming to the API Commons Rate Limits specification.

It captures 6 rate-limit definitions, measuring upload size, characters, video duration, aspect ratio, and items per page.

Tagged areas include Company, Video, Artificial Intelligence, Video Editing, and Video Generation.

6 Limits
CompanyVideoArtificial IntelligenceVideo EditingVideo GenerationCaptionsSubtitlesText-to-SpeechAI AvatarsContent CreationMedia

Limits

Video Captioning - File Size
upload size · per request
50
Maximum file size for video uploads to /v1/videos/captions endpoint
AI Creator - Script Length
characters · per request
800
Maximum script length for AI Creator and AI Ads video generation
AI Creator - Video Duration
video duration · per request
60
Maximum generated video length for AI Creator and AI Ads APIs
Video Captioning - Aspect Ratio
aspect ratio · per request
556
Uploaded videos must be 9:16 aspect ratio for captioning endpoint
List Videos - Pagination
items per page · per request
100
Maximum limit parameter value for GET /v1/videos pagination; default is 20
Credit Balance
credits · per request
0
Requests are rejected if the account has insufficient credits. Credits are consumed at 1 credit per second of generated video for AI Creator and AI Ads APIs. Credit balance can be monitored and replenished at https://desktop.captions.ai/api

Work with this as data

Every rate limit here is available over the APIs.io API and to AI agents over MCP.

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Tools for rate limits

4 MCP tools reach this
  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This rate limit 
curl "https://apis.io/api/v1/rate-limits/captions-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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