transcriptor-mcp (samson-art/transcriptor-mcp) is an MCP server listed on the M8ven Trust Index. It scores 62 out of 100, grade C. It declares 7 tools. No publisher has claimed this listing.

Caution

62/100

transcriptor-mcp

Item: transcriptor-mcp
Rating: 62
Author: M8ven

One MCP server that gives Claude, ChatGPT, Cursor and any other AI app transcripts, chapters, metadata and frames from YouTube and 10 more video platforms.

→ samson-art/transcriptor-mcp· 3.4K installs· listed on smithery

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

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Who stands behind it

samson-art

Source: Smithery · also listed on Glama, github_repo_search

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Install from

Smitherynot scored here Glamanot scored here GitHub

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings

⚠️

Known vulnerabilities in dependencies: 1 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

7 tools verified — handlers match their declared behaviour

7 read-only tools verified — handlers contain no write/delete/exec

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 2 credentials: SMOKE_MCP_AUTH_TOKEN, WHISPER_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// tools this server exposes7 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

get_transcript

Fetch cleaned subtitles as plain text for a video (YouTube, Twitter/X, Instagram, TikTok, Twitch, Vimeo, Facebook, Bilibili, VK, Dailymotion, Reddit). Uses auto-discovery for type/language when omitted. Optional: type, lang, response_limit (when omitted returns full transcript), next_cursor for pagi…

get_raw_subtitles

Fetch raw SRT/VTT subtitles for a video (supported platforms). Optional: type, lang, response_limit (when omitted returns full content), next_cursor for pagination.

get_available_subtitles

List available official and auto-generated subtitle languages.

get_video_info

Fetch extended metadata for a video (title, channel, duration, tags, thumbnails, etc.).

get_video_chapters

Fetch chapter markers (start/end time, title) for a video.

get_playlist_transcripts

Fetch cleaned subtitles (plain text) for multiple videos from a playlist. Use playlistItems (e.g. "1:5") to select specific items, maxItems to limit count.

search_videos

Search videos on YouTube via yt-dlp (ytsearch). Returns list of matching videos with metadata. Optional: limit, offset (pagination), uploadDateFilter (hour|today|week|month|year), dateBefore, date, matchFilter (e.g. "!is_live"), response_format (json|markdown).

// known CVEs in dependencies1 high2 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

highfastify@5.7.4GHSA-247c-9743-5963

Fastify has a Body Schema Validation Bypass via Leading Space in Content-Type Header

lowfastify@5.7.4GHSA-444r-cwp2-x5xf

fastify: request.protocol and request.host Spoofable via X-Forwarded-Proto/Host from Untrusted Connections

lowfastify@5.7.4GHSA-573f-x89g-hqp9

Fastify's Missing End Anchor in "subtypeNameReg" Allows Malformed Content-Types to Pass Validation

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// environment variables

To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.

configBASE_URL

configCACHE_MODERedis caching — Cache subtitles and metadata to reduce yt-dlp calls. Configure via =redis and CACHE_REDIS_URL.

configCACHE_REDIS_URLRedis caching — Cache subtitles and metadata to reduce yt-dlp calls. Configure via CACHE_MODE=redis and .

configCACHE_TTL_METADATA_SECONDS

configCACHE_TTL_SUBTITLES_SECONDS

configCOOKIES_FILE_PATHan authenticated cookies.txt file and the environment variable.

configCORS_ALLOWED_ORIGINS

configHOSTIf you change PORT / , adjust the URL accordingly, e.g. http://<HOST>:<PORT>/docs.

configLOAD_BASE_URL

configLOG_LEVEL

configRATE_LIMIT_TIME_WINDOW

configSMOKE_BUILD

configSMOKE_DOCKERFILE

configSMOKE_DOCKER_CONTEXT

configSMOKE_IMAGE_APIFull API image reference (overrides name/tag).

🔐 secretSMOKE_MCP_AUTH_TOKENIf set, sent as Authorization: Bearer on MCP HTTP requests (for smoke against an edge that requires Bearer; the default smoke stack does not enforce it).

configSMOKE_MCP_IMAGEFull MCP image reference (overrides name/tag).

configSMOKE_SKIP_BUILD

configSMOKE_SKIP_MCPSet to 1 (or true/yes) to skip MCP checks.

configTEST_PARSE_INT

configWHISPER_API_BASE_URL

🔐 secretWHISPER_API_KEYWhisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via WHISPER_MODE, WHISPER_BASE_URL, , etc.

configWHISPER_BACKGROUND_TIMEOUT

configWHISPER_BASE_URLWhisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via WHISPER_MODE, , WHISPER_API_KEY, etc.

configWHISPER_MODEWhisper fallback — When native subtitles are unavailable, transcribe video audio via Whisper (local self-hosted or OpenAI API). Configure via , WHISPER_BASE_URL, WHISPER_API_KEY, etc.

configWHISPER_TIMEOUT

configYT_DLP_AGE_LIMIT

configYT_DLP_AUDIO_BUFFER_SIZE

configYT_DLP_AUDIO_CONCURRENT_FRAGMENTS

configYT_DLP_AUDIO_DOWNLOADER

configYT_DLP_AUDIO_DOWNLOADER_ARGS

configYT_DLP_AUDIO_FORMAT

configYT_DLP_AUDIO_FRAGMENT_RETRIES

configYT_DLP_AUDIO_HTTP_CHUNK_SIZE

configYT_DLP_AUDIO_LIMIT_RATE

configYT_DLP_AUDIO_QUALITY

configYT_DLP_AUDIO_RETRIES

configYT_DLP_AUDIO_RETRY_SLEEP

configYT_DLP_AUDIO_THROTTLED_RATE

configYT_DLP_AUDIO_TIMEOUT

configYT_DLP_DOWNLOAD_ARCHIVE

configYT_DLP_ENCODING

configYT_DLP_EXTRA_ARGS

configYT_DLP_IGNORE_NO_FORMATS

configYT_DLP_JS_RUNTIMES

configYT_DLP_MAX_FILESIZE

configYT_DLP_MAX_SLEEP_INTERVAL

configYT_DLP_NO_WARNINGS

configYT_DLP_PLAYLIST_IGNORE_ERRORS

configYT_DLP_PROXY

configYT_DLP_REMOTE_COMPONENTS

configYT_DLP_REQUIRED

configYT_DLP_RETRIES

configYT_DLP_RETRY_SLEEP

configYT_DLP_SKIP_VERSION_CHECK

configYT_DLP_SLEEP_INTERVAL

configYT_DLP_SLEEP_REQUESTS

configYT_DLP_SLEEP_SUBTITLES

configYT_DLP_SUB_FORMAT

configYT_DLP_TIMEOUT

configYT_DLP_VERBOSE_ON_ERROR

Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.

deploySENTRY_DSN

deploySENTRY_ENVIRONMENT

deploySENTRY_RELEASE

deploySENTRY_SEND_DEFAULT_PII

deploySENTRY_TRACES_SAMPLE_RATE

// quality suggestions

All four hints declared on every tool

7/7 tools missing one or more hints — get_transcript (missing: destructiveHint, openWorldHint); get_raw_subtitles (missing: destructiveHint, openWorldHint); get_available_subtitles (missing: destructiveHint, openWorldHint), +4 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool inputs are validated

Only 0/7 tool handlers declare input schemas (0%)

Declare an inputSchema with zod/joi/yup on every tool definition.

Shell command execution

4 child_process calls — runs shell commands

Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.

Production dependencies are patched

0 critical, 1 high severity in production deps — fastify@5.7.4 (high), fastify@5.7.4 (low)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail

The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

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commit: c60521aea1335a2a03d6ab808bec4a4d90fdc2e9

code hash: 0949484940a2db1c60be599f9b2d8e51abe7ecf14d851d6f744cab6221ebcf3c

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