cobalt api documentation

this document provides info about methods and acceptable variables for all cobalt api requests.

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POST: `/api/json`

cobalt's main processing endpoint.

request body type: application/json
response body type: application/json

⚠️ you must include Accept and Content-Type headers with every POST /api/json request.

Accept: application/json
Content-Type: application/json

key	type	variables	default	description
`url`	`string`	URL encoded as URI	`null`	must be included in every request.
`vCodec`	`string`	`h264 / av1 / vp9`	`h264`	applies only to youtube downloads. `h264` is recommended for phones.
`vQuality`	`string`	`144 / ... / 2160 / max`	`720`	`720` quality is recommended for phones.
`aFormat`	`string`	`best / mp3 / ogg / wav / opus`	`mp3`
`filenamePattern`	`string`	`classic / pretty / basic / nerdy`	`classic`	changes the way files are named. previews can be seen in the web app.
`isAudioOnly`	`boolean`	`true / false`	`false`
`isNoTTWatermark`	`boolean`	`true / false`	`false`	changes whether downloaded tiktok videos have watermarks.
`isTTFullAudio`	`boolean`	`true / false`	`false`	enables download of original sound used in a tiktok video.
`isAudioMuted`	`boolean`	`true / false`	`false`	disables audio track in video downloads.
`dubLang`	`boolean`	`true / false`	`false`	backend uses Accept-Language header for youtube video audio tracks when `true`.
`disableMetadata`	`boolean`	`true / false`	`false`	disables file metadata when set to `true`.

key	type	variables
`status`	`string`	`error / redirect / stream / success / rate-limit / picker`
`text`	`string`	various text, mostly used for errors
`url`	`string`	direct link to a file or a link to cobalt's live render
`pickerType`	`string`	`various / images`
`picker`	`array`	array of picker items
`audio`	`string`	direct link to a file or a link to cobalt's live render

item type: object

key	type	variables	description
`type`	`string`	`video`	used only if `pickerType`is `various`.
`url`	`string`	direct link to a file or a link to cobalt's live render
`thumb`	`string`	item thumbnail that's displayed in the picker	used only for `video` type.

cobalt's live render (or stream) endpoint. used for sending various media content over to the user.

key	variables	description
`p`	`1`	used for probing whether user is rate limited.
`t`	stream token	unique stream id. used for retrieving cached stream info data.
`h`	hmac	hashed combination of: (hashed) ip address, stream token, expiry timestamp, and service name. used for verification of stream.
`e`	expiry timestamp

returns current basic server info.
response body type: application/json