The request, "Caption File Check", asks what to use. Cloudflare's Stream service offers caption and subtitle endpoints (upload, list, and get captions for a language) 4, which fits checking caption files directly. Other candidates index caption-related actions, such as Replicate's autocaption and captioning models 7 and GitHub's alt-text accessibility bot 1, but their sources do not show a caption-file check.
A question back: Do you mean checking the caption files for a video (such as WebVTT or SRT timing and format), or checking the wording of captions? Which platform hosts the video?
- 1
Cloudflare Streamcloudflare.comverified and signed
Stream's captions API lets you upload, list, and fetch caption or subtitle files for a video by language, so you can inspect what caption files exist 4.
official:MCP server · @cloudflare/mcp-server-cloudflarelibrary · Deploy to Cloudflare Workers with WranglerCLI · cloudflaredrepository · browser-runskill · cloudflare+276 community tools built for it
for agents: stream-subtitles/-captions-upload-captions-or-subtitles · stream-subtitles/-captions-list-captions-or-subtitles · stream-subtitles/-captions-get-caption-or-subtitle-for-language
- 2
Replicatereplicate.comverified and signed
Hosts caption-generating models such as salesforce/blip and fictions-ai/autocaption that produce image or video captions via API 7.
+14 community tools built for it
for agents: salesforce/blip · lucataco/joy-caption-pre-alpha · fictions-ai/autocaption
Sources
- 1GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
- 4Cloudflare: Build for the agent eracloudflare.com · read 2026-10-29
- 7Replicate - Run AI with an APIreplicate.com · read 2026-10-29
For agents: the 10 actions behind this answer
github/accessibility-alt-text-bot · Accessibility alt text bot verified and signed
This action will check a repos issue, discussion, or PR for correct alt text usage.
describe_check · AWS SRA Verify MCP Server found in code, not yet checked
Get detailed information about a specific check.
find_file · OpenAI (Activepieces) verified and signed
Find File — Look up files in your OpenAI account by exact name.
stream-subtitles/-captions-upload-captions-or-subtitles · Cloudflare API verified and signed
Upload captions or subtitles
checking · typing verified and signed
get-file · Slack (Activepieces) verified and signed
Get File — Return information about a given file ID.
salesforce/blip · salesforce/blip verified and signed
Generate image captions
PostSourcesSourceVerify · Stripe API verified and signed
<p>Verify a given source.</p>
file_exists · agentfs-claude found in code, not yet checked
Check whether a file exists or not by passing its path.
find_page · Notion (Activepieces) verified and signed
Find Page — Find pages by title, with exact or partial matching.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.