Castbox Creator Studio

castbox.fm · Storage · 1 record · JSON

Castbox Creator Studio Storage

caveatemailno cardIper-object-cap

castbox.fm · media · storage/castbox-creator-studio · JSON · compare

Free tier	'There is no limit on uploading storage (total) for a channel.' Per-file cap 400 MB, from a help page last updated 7 years ago ('Updated: 7 years ago') — the 400 MB figure is stale and should be treated as unverified. unit MB; metered on stored-bytes
Price	none stated
Per-object cap	400 MB per file (400000000 bytes)
Retention	not stated
Egress	Not published; no egress charge surfaced in any Castbox creator doc.
Identity	email derived from the record's prose, not from an identity field, and no signup was executed: t on total storage' line still holds. Multiple accounts are email-only. 400 MB per file (2019-era doc); accepted WAV/MP3/MP4/AAC/M4A. No retention or bandwidth figure published anywhere
Limits	per-object-cap 400 MB per file source 400 MB per file (2019-era doc); accepted WAV/MP3/MP4/AAC/M4A. No retention or bandwidth figure published anywhere.
Binding	per-object-cap the per-object cap sets the shard size and therefore the object count; it bounds the total more tightly than any headline quota
Interface	unknown wrapper-only
Tooling	Creator Studio web dashboard only; no API. Castbox is primarily a player, so its hosting is a sideline.
Composes with	Unlimited channels x unlimited episodes, if the 'no limit on total storage' line still holds. Multiple accounts are email-only.
Reliability	Unverifiable. The hosting doc carries no date beyond 'Page updated' and the file-type doc says 'Updated: 7 years ago'. I could not retrieve a Castbox-hosted feed to probe enclosures: castbox.fm/rss/<id> 302s to a 404 page, and every Castbox channel I opened turned out to be a client for someone else's feed (e.g. a Megaphone feed). So 'unlimited total storage' is a claim with no working retrieval path I could confirm.
Notes	'There is no limit on uploading storage (total) for a channel.' Per-file cap 400 MB, from a help page last updated 7 years ago ('Updated: 7 years ago') — the 400 MB figure is stale and should be treated as unverified.
Evidence rung	inferred One page read moves it to documented.
Checked	2026-10-21 (inherited); stale on 2026-11-20
Parsed numbers	`$.limits[0].value` limit:per-object-cap 400.0 MB

Evidence (3)

date	source	what it proved
2026-10-21	sites.google.com/castbox.fm/castbox-help-center/podcasters/g	'There is no limit on uploading storage (total) for a channel.'
2026-10-21	helpcenter.castbox.fm/portal/en/kb/articles/file-types-when-	'the maximum file size is 400M'; 'Updated: 7 years ago'
2026-10-21	withheld	probe: GET castbox.fm/rss/3678725 -> 302 -> castbox.fm/404.html (no public enclosure path found)

Unknown or withheld values (7)

$.egress.metered egress-unknown
$.evidence[2].url private-url
$.free_tier.notes process
$.interface interface-unknown
$.per_object_cap.notes not-extracted
$.retention.notes not-extracted
$.retention.stated not-extracted

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