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What Keldura can import and monitor.

Use this canonical directory to distinguish one-off capture, Library imports, and recurring Briefings monitoring. Availability is rendered into this page from Keldura's current runtime configuration, so crawlers and the Keldura helper Bot read the same general-audience status.

Three different ways to use a source

Add once

Capture one video, page, file, message, or note. It becomes content, not a recurring source.

Import many

Preview and select a collection, feed, site, profile, stream, or batch for a Library folder.

Briefings monitoring

Follow a recurring source and use its new material in source-backed Briefings. Monitoring does not always imply Library import.

Source capability matrix

Availability checked 2026-08-18 04:07 UTC — general audience

How to read availability: “Available now” means exposed to the default general production audience. “Limited rollout” means access can vary by account. “Not currently available to general accounts” means the capability is implemented but effectively off for general accounts. “Separate workflow” means acquisition exists outside the recurring-import feature flags. When a source has more than one mode, the badge follows the primary path named in its Availability detail; an additional mode can have its own gate. Status is not an uptime promise, plan entitlement, source-access guarantee, or confirmation that every third-party URL can be fetched.

Compare accepted source shape, acquisition mode, current general-account availability, and the most important boundary.
SourceAdd onceImport manyBriefings monitoringCurrent availabilityBoundary
YouTubeVideoChannels and playlistsChannels and playlistsAvailable nowA single video is one-time and does not auto-sync.
WebsitePageMulti-page siteWebsite rootsAvailable nowMonitor a site root; one page remains one-time.
InstagramPost, Reel, or IGTV videoone post, Reel, or IGTV URL at a timeNoAvailable nowWhole profiles and account monitoring are not supported.
TikTokIndividual videoNoNoAvailable nowRecognized individual video URLs only.
XStatus videoNoNo profilesAvailable nowRecognized status-video URLs only.
FacebookVideo or ReelNoNo pages or profilesAvailable nowRecognized individual video or Reel URLs only.
Local filesFileFile and folder batchesNoSeparate workflowUpload another copy when a local file changes.
Google DriveSelected filePicker selectionNoSeparate workflowKeldura receives only the files you select.
TelegramMessage or supported fileContinuous chat importNot a Briefings monitorSeparate workflowWatched-group capture is a separate ingestion workflow.
RSS / Atom / Substack—FeedsFeedsAvailable nowPaste a recognized feed URL; HTML feed autodiscovery is not supported.
Podcasts—Podcast feedsNew episodesAvailable nowRequires RSS plus podcast exposure and transcript limits.
arXiv—RSS-backed category feedsRSS-backed category feedsAvailable nowRSS-backed categories, not a separate paper adapter.
Bluesky—Public profilesPublic profilesAvailable nowPublic author feeds only; no search or firehose.
Hacker News—Front page or user streamFront page or user streamAvailable nowFront-page stories or one user's submitted-story stream.
Topics—No Library importBriefings-only topicAvailable nowA query and exclusions, not a Library source.

Source details

These boundaries are deliberately explicit so you—and the Keldura helper Bot—can choose the correct workflow without assuming that one accepted URL implies profile import or monitoring.

YouTube

Available now
Accepted source
A public or accessible video, channel, or playlist URL.
What Keldura does
Captures one video or previews a channel/playlist, transcribes selected videos, and files them in a Library.
Modes
Add one video; import channels/playlists; monitor channels/playlists for Briefings.
Availability
Bulk and recurring paths follow the live Import feature gate.
Limits
Private, deleted, region-blocked, age-restricted, or transcript-unavailable videos may fail. One-off videos do not auto-sync.
How to start
Open Import for a channel or playlist; use Add content after signing in for one video. Official service: YouTube.

Website

Available now
Accepted source
One public page URL or a website root that Keldura can crawl.
What Keldura does
Extracts readable page content, previews discovered subpages, and can keep a selected site root current.
Modes
Add one page; import a multi-page site; monitor a site root for Briefings.
Availability
Website import and monitoring follow the live Import feature gate.
Limits
Login walls, robots restrictions, unsupported scripts, paywalls, and site-level blocking can limit capture.

Instagram

Available now
Accepted source
A recognized public post, Reel, or IGTV URL with video/transcript content.
What Keldura does
Fetches the individual video's transcript and can add that one post to a Library.
Modes
Add once or import one post/Reel/IGTV URL; no Briefings profile monitoring.
Availability
The badge follows one-off capture through the social-video master and Instagram switch. The Import-page route separately follows the global Import gate.
Limits
Whole profiles and account monitoring are not supported. Private, deleted, blocked, or transcript-free posts can fail.
How to start
Use Add content for one video, or open Import for one post. Official service: Instagram.

TikTok

Available now
Accepted source
A recognized individual TikTok video URL.
What Keldura does
Fetches a transcript for one video and adds it as one-off content.
Modes
Add once only; no bulk account import and no Briefings monitoring.
Availability
Follows the social-video master and TikTok host switch.
Limits
Profiles, collections, private/deleted videos, and videos without retrievable transcript content are outside this path.
How to start
Paste one URL into Add content after signing in. Official service: TikTok.

X

Available now
Accepted source
A recognized X status URL containing video.
What Keldura does
Uses the individual video URL to retrieve transcript content for one-off capture.
Modes
Add once only; no profile import and no profile monitoring.
Availability
Follows the social-video master and X host switch.
Limits
Text-only posts, profiles, timelines, protected posts, and inaccessible videos are not supported.
How to start
Use Add content to import video from X after signing in. Official service: X.

Facebook

Available now
Accepted source
A recognized public Facebook video or Reel URL.
What Keldura does
Retrieves transcript content for that individual video.
Modes
Add once only; no page/profile bulk import or Briefings monitoring.
Availability
Follows the social-video master and Facebook host switch.
Limits
Private/deleted posts, pages, profiles, groups, and inaccessible video content are outside this path.
How to start
Paste one video or Reel URL into Add content. Official service: Facebook.

Local files

Separate workflow
Accepted source
MP3, MP4, M4V, M4A, WAV, OGG, WebM, MOV, AVI, FLAC, PDF, TXT, Markdown, Word (DOCX), PPT/PPTX, JSON, JPEG, PNG, BMP, TIFF, and GIF.
What Keldura does
Uploads, transcribes or extracts text, optionally applies OCR to supported scans/images, and files results in a Library.
Modes
Add one file or import file/folder batches; no recurring monitoring.
Availability
A separate upload and processing-run workflow, not a recurring-source rollout.
Limits
File-size, tier, extraction, and supported-format limits apply. Changes on your device are not observed automatically.
How to start
Choose Local files in Import or use Add content after signing in.

Google Drive

Separate workflow
Accepted source
Files explicitly selected through the Google Drive picker.
What Keldura does
Copies selected files into the same extraction and Library-targeting workflow as local uploads.
Modes
Select one file or a batch; no Drive-wide sync and no Briefings monitoring.
Availability
A separate authenticated acquisition workflow.
Limits
Keldura receives only selected, accessible files; later Drive edits do not automatically update the Library.
How to start
Choose Google Drive in Import. Official service: Google Drive.

Telegram

Separate workflow
Accepted source
Forwarded/sent text; supported documents, images, audio, voice, and video; or new messages in a bound group.
What Keldura does
Imports supported messages/files continuously through the Telegram Import Bot and materializes them into the selected folder.
Modes
Add a message/file or continuously import new bound-group messages; not Briefings monitoring.
Availability
A separate ingestion workflow rather than the recurring Import/Briefings flags.
Limits
Unsupported types are skipped; maximum 20 MB per file and a plan limit may be lower. This is not a historic group-chat export.
How to start
Follow the Telegram import instructions in the app. Official service: Telegram.

RSS, Atom, and Substack

Available now
Accepted source
A recognized RSS 2.0 or Atom feed URL, including a compatible Substack feed.
What Keldura does
Discovers feed entries, extracts inline or linked article content, imports selected material, and can follow new entries.
Modes
Import a feed and monitor it for Briefings; no special one-off feed item path.
Availability
Requires both the global Import gate and RSS exposure.
Limits
Paste the feed itself; HTML feed autodiscovery is not supported. Teaser-only entries may require a fetch that can be blocked.
How to start
Paste the feed URL in Import. Official standard: RSS 2.0; official standard: Atom.

Podcasts

Available now
Accepted source
An RSS feed whose episodes include audio enclosures.
What Keldura does
Uses an embedded podcast transcript when present or transcribes the enclosure URL, then makes episodes searchable and citable.
Modes
Import a podcast feed and monitor new episodes.
Availability
Requires the global Import gate, RSS exposure, and podcast exposure.
Limits
Episode duration and daily transcription budgets apply; missing duration is handled conservatively.

arXiv

Available now
Accepted source
A supported arXiv category list or RSS URL.
What Keldura does
Normalizes the category onto the RSS engine and follows new feed entries.
Modes
Import and monitor an RSS-backed category feed.
Availability
Requires the global Import gate and RSS exposure.
Limits
This is feed-backed category tracking, not arbitrary arXiv search, author monitoring, or a separate paper API.
How to start
Paste the supported category/list URL in Import. Official service: arXiv RSS feeds.

Bluesky

Available now
Accepted source
A public Bluesky profile URL or handle.
What Keldura does
Resolves the handle and polls the public author feed for posts to import and/or use in Briefings.
Modes
Import a public profile and monitor new public posts.
Availability
Requires the global Import gate and Bluesky exposure.
Limits
Public author feeds only; no authentication, search, firehose, private content, or general keyword monitoring.
How to start
Paste the public profile in Import. Official service: Bluesky.

Hacker News

Available now
Accepted source
The Hacker News front page or one user's submitted-story stream.
What Keldura does
Discovers matching stories through the public search index and imports/monitors their source material.
Modes
Import and monitor the front page or one user's submissions.
Availability
Requires the global Import gate and Hacker News exposure.
Limits
No arbitrary Hacker News search, comments-only stream, or multiple-user expression in one source.
How to start
Choose the supported stream in Import. Official service: Hacker News.

Topics

Available now
Accepted source
A Briefings topic query plus optional exclusions.
What Keldura does
Searches for recent matching material and uses eligible results in source-backed Briefings.
Modes
Briefings monitoring only; no Add once or Library import source.
Availability
Follows the live Briefings topics exposure.
Limits
A topic is a discovery instruction, not a website/feed/profile and not a promise that every query returns new results.
How to start
Open Briefings and add a topic when the option is available to your account.

How imports run

  • Background queue: imports continue while you work elsewhere.
  • Destination picker: Library-feeding imports let you choose the target folder.
  • Already-imported detection: previews identify new items so duplicates are not processed again unnecessarily.
  • Needs attention: failed items are collected for review and bulk retry.