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Search / io.github.CalmNguyen/ttsforfree

TTSForFree

R0· no sign-in

Generate AI voices, text-to-speech, subtitles, transcription, and video localization.

v1.0.0 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality91strong
Trust96of 100
Uptime, 30 days95%
Latency p50957 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "ttsforfree": {
      "type": "http",
      "url": "https://api.ttsforfree.com/mcp"
    }
  }
}
claude mcp add --transport http ttsforfree https://api.ttsforfree.com/mcp
[mcp_servers.ttsforfree]
url = "https://api.ttsforfree.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ttsforfree": {
      "type": "remote",
      "url": "https://api.ttsforfree.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "ttsforfree": {
      "type": "http",
      "url": "https://api.ttsforfree.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=ttsforfree&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vYXBpLnR0c2ZvcmZyZWUuY29tL21jcCJ9"
}
{
  "servers": {
    "ttsforfree": {
      "type": "http",
      "url": "https://api.ttsforfree.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "ttsforfree": {
      "httpUrl": "https://api.ttsforfree.com/mcp"
    }
  }
}
extensions:
  "ttsforfree":
    enabled: true
    name: "ttsforfree"
    type: streamable_http
    uri: "https://api.ttsforfree.com/mcp"
    timeout: 300

Quality 91 / 100strong

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene100 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations21 of 21 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 4,118 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

21 tools, about 4,118 tokens to load them all · tool set ce92cf4a7141 · checked 2026-11-07 17:28 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 96 / 100

provenance90
liveness98
freshness100
hygiene100

+repository +namespace-matches-repo +website +reachable +uptime-95% +updated-16d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://api.ttsforfree.com/mcp streamable-httpnoneyes95%957 ms2025-11-252026-11-07

Tools (21)

add_favorite_voiceSave a voice to the user's favorites (only when the user asks).
create_upload_urlGet a one-time URL to upload a local video or audio file (mp4, mov, webm, mkv, mp3, wav, m4a...) up to 2 GB. Upload with HTTP PUT of the raw bytes, e.g. `curl -T video.mp4 "<upload_url>"` (valid 15 minutes), then pass `public_url` to transcribe_media or localize_video. Only files uploaded here (or on ttsforfree.com) are accepted; YouTube and other external links are never downloaded. If you cannot run commands, ask the user to upload the file on https://ttsforfree.com/en/video-localization/ and paste the file link.
design_custom_voiceCreate a new personal AI voice from a natural-language description (Gemini Voice Design). Uses one slot of the user's custom-voice quota - confirm with the user first. Good for a unique narrator or a character voice in a video/podcast. Returns the new `voice` token.
estimate_video_localizationread-onlyEstimate the credits to dub one video into one or more languages (speech-to-text + translation + voice + video merge) before running localize_video. Pass video_url (duration is measured) or duration_seconds.
get_account_statusread-onlyShow the user's plan tier, remaining characters/credits, max characters per request, max blocks per multi-voice/SRT job and API rate limits. Call before large jobs.
get_job_detailread-onlyGet a multi_voice_to_speech or srt_to_speech job with every segment: text, voice and its own audio_url, plus the merged audio. Use it to build captions or a Remotion/NLE timeline (one <Sequence> per segment; measure each file's duration in the renderer).
get_job_statusread-onlyCheck a speech job created earlier. Returns status (PENDING | SUCCESS | ERROR) and audio_url once SUCCESS. Never guess or fetch an audio URL before SUCCESS.
get_localization_statusread-onlyStatus of localize_video jobs: current step, and when Completed the dubbed audio_url, final_video_url and translated SRT for each language.
get_transcriptionread-onlyCheck a transcribe_media job and get its SRT once finished.
get_voice_detailsread-onlyGet full metadata for one voice token: persona, use case, accent, pitch, styles, preview audio and credit cost.
list_favorite_voicesread-onlyList the voices the user marked as favorites, in their saved order. Check this first when the user did not name a voice.
list_languagesread-onlyList every language supported by TTSForFree text-to-speech. Returns language codes to pass to list_voices.
list_my_custom_voicesread-onlyList the user's personal voices created with Voice Design (from a text prompt) or Voice Clone (from an audio sample), plus the remaining custom-voice quota. Use `voice` from the result in any speech tool.
list_recent_jobsread-onlyList the user's most recent speech jobs with status and audio URLs, to reuse earlier audio instead of paying again.
list_voicesread-onlySearch the AI voice catalog for one language. Each result has a `voice` token (v1:...) - pass it unchanged as `voice` to text_to_speech, multi_voice_to_speech or srt_to_speech. Results are sorted by popularity; `can_use=false` means the user's plan cannot use that voice. Prefer the user's favorite or custom voices when they exist.
localize_videoFull automatic dubbing of an uploaded video: transcribe once, translate, voice every target language with its own voice and render a dubbed video per language. Each language returns an audio_url (voice track aligned to the original timeline - upload it to YouTube Studio as a multi-language audio track) and a final_video_url. Takes several minutes: returns job_guids immediately; poll get_localization_status. Confirm the cost with estimate_video_localization for long videos.
multi_voice_to_speechRender ordered segments, each with its own voice, into ONE merged MP3. Use for podcasts, dialogues, interviews, audio dramas or explainer videos with several speakers when there are no fixed timestamps. Consumes credits.
remove_favorite_voicedestructiveRemove a voice from the user's favorites (only when the user asks).
srt_to_speechCreate ONE MP3 that follows a subtitle timeline: every cue starts at its timestamp and speech speed auto-fits the cue duration. Use for video voiceover, dubbing translated subtitles, YouTube localization, tutorials and any edit where audio must line up with existing video. Pass either raw `srt` (SRT or WebVTT text) or `segments` with start_ms/end_ms. For several speakers set `speaker_voices` and prefix cue text with '[Name]' or 'Name:'. The resulting MP3 starts at 00:00 of the video, so it can be muxed directly with ffmpeg (commands are returned). Consumes credits.
text_to_speechConvert one text into one MP3 with one voice. Use for narration, voiceover scripts, articles, lessons, announcements or any audio whose length can follow the speech. Consumes credits (characters x voice rate). Returns job_id, status and audio_url when ready.
transcribe_mediaSpeech-to-text for an uploaded video or audio file: returns timestamped SRT (the timeline to rewrite, translate or re-voice with srt_to_speech). Credits are charged per second of media, measured by the server. Use language = the spoken language code from list_languages.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "io.github.CalmNguyen/ttsforfree",
  "title": "TTSForFree",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://api.ttsforfree.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "repository": {
    "url": "https://github.com/CalmNguyen/ttsforfree-mcp",
    "source": "github"
  },
  "websiteUrl": "https://ttsforfree.com",
  "description": "Generate AI voices, text-to-speech, subtitles, transcription, and video localization."
}