mambalabsdev/mcp-youtube-channel-transcript-extractor

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MCP server for the Mamba Labs YouTube Channel Stats Extractor actor on Apify.

The npm package and the registry entry keep the name mcp-youtube-channel-transcript-extractor, so existing installs keep working; the product is YouTube Channel Stats Extractor.

Resolve a company domain or YouTube handle to the channel with subscriber count and channel metadata.

What it does

Resolve a company domain, or a YouTube handle, to that company's YouTube channel. Returns the subscriber count, the stable UC channel id, channel name, creation date and description, as one flat Clay ready row. Subscriber counts are rounded by YouTube above roughly a thousand subscribers, on the page and in its official API alike, and the row flags that. Optional transcript pulling is available and is CURRENTLY GATED by YouTube: the caption track list is readable and the caption content endpoint returns an empty body without a proof of origin token, which the row reports as not_extractable rather than as a video having no captions. No API key needed. Read only; requires an APIFY_TOKEN and consumes Apify credits per call.

Quick start

Add this to your MCP client configuration:

{
  "mcpServers": {
    "mamba-youtube-channel-stats": {
      "command": "npx",
      "args": ["-y", "@mambalabsdev/mcp-youtube-channel-transcript-extractor"],
      "env": { "APIFY_TOKEN": "your-apify-token" }
    }
  }
}

Prerequisites

• Node.js 18 or newer
• An Apify API token from console.apify.com/account/integrations

The actor is pay per event and consumes Apify credits per call. Pricing is on the actor page.

Example prompts

• "How many YouTube subscribers does stripe.com have?"
• "Find the YouTube channel id for hubspot.com."
• "Does gitlab.com run a YouTube channel, and when was it created?"

Tool and inputs

Tool: get_youtube_channel_stats

Input	Type	Meaning
company_domain	string	Bare company domain, for example shopify.com. Supply this or a handle. With a domain the actor runs full discovery; with a handle it skips straight to
company_name	string	Optional. Improves search accuracy and is what the identity gate checks a discovered profile against, so supplying it reduces wrong matches.
handle	string	Optional. A YouTube handle such as @shopify, or a full channel URL. Supplying it skips discovery and goes straight to the channel.
includeFollowerCounts	boolean	When "true" (default) the profile page is fetched and the counts are extracted. Set "false" to resolve the profile URL only, which is cheaper and need
skipCache	boolean	When "false" (default) a successful lookup is cached for seven days and reused. Set "true" to force a fresh fetch. Sent as a string for Clay compatibi
includeTranscripts	boolean	When "true", full timestamped transcripts are pulled for the most recent videos on the channel and returned as one row per video. Default is "false" b
transcriptVideoCount	string	How many of the channel's most recent videos to pull transcripts for, when transcripts are on. Default 5. Each video is one extra fetch and one extra
max_charge_usd	number	Optional spending cap for this call, in USD. The actor stops before any charge that would take the run past this amount and keeps every row already charged.

Reading the output

Every row carries a per platform _status field, and it is the field to read first. The vocabulary is the same across the whole Mamba Labs social family:

Status	Meaning
ok	fetched and parsed, the value is there
not_found	we looked and there is no such profile
not_extractable	the profile exists and the value is not on the wire to us
blocked	the platform refused us, worth retrying later
identity_mismatch	we found a real profile and it belongs to someone else
skipped	you did not ask for this platform

false and null are never interchangeable. false means we looked and the answer is no. null means we could not look. If you filter for companies with no presence, filter on false, because null rows are unknown rather than absent.

Pricing

You pay per event on Apify, billed to your own Apify account. Prices from the live pricing record, read 2026-10-16:

Event	Price per event (USD)	Fires when
apify-actor-start	$0.00005	Charged when the Actor starts running. Number of events charged depends on Actor memory (one event per GB, minimum one event).
company-checked	$0.0035 on the Free plan, down to $0.00245 on higher Apify plans	Once per company for which the discovery cascade completed and a non degraded channel row was produced, whether or not a channel was found. Does not fire on a degraded row.
profile-resolved	$0.0025 on the Free plan, down to $0.00175 on higher Apify plans	Once per company whose candidate channel URL passed the identity gate. Fires on the validation work, not on a populated subscriber cell.
follower-count-extracted	$0.0025 on the Free plan, down to $0.00175 on higher Apify plans	Once per channel where a numeric subscriber count was read off the public page. Does not fire when the owner has hidden the count, which reports not_extractable.
transcript-extracted	$0.015 on the Free plan, down to $0.0105 on higher Apify plans	Once per video for which transcript TEXT was actually returned. A video with no caption track does not charge, and neither does a video whose caption track exists but whose content YouTube refused to serve. Never fires when transcripts are turned off. This is deliberately strict: the fetch costs us roughly a cent whether or not it yields text, and the buyer should not carry that.

The actor's Apify page carries the current prices. Running this server consumes Apify credits.

Full actor documentation

apify.com/mambalabs/youtube-channel-transcript-extractor

Mamba Labs GTM Suite

Mamba Labs builds a fleet of GTM enrichment actors that share one flat, Clay ready output convention, so their rows join on company_domain with no cleaning step. Full fleet: apify.com/mambalabs

License

MIT