Koskamo

TTSForFree MCP

A remote MCP server that enables AI assistants to generate audio via text-to-speech, multi-voice podcasts, SRT-to-speech dubbing, and video localization. It supports voice browsing, custom voice design, and async job polling for high-quality audio generation in 100+ languages.

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Endpoint and access

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TTSForFree MCP logo, by TTSForFreeCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by TTSForFree
You need:OAuth 2.1 sign-in with the TTSForFree accountheader `X-API-Key: ` or `Authorization: Bearer `Allow ttsforfree.com, *.ttsforfree.com and *.r2.cloudflarestorage.com
MCP endpoint (Streamable HTTP)
https://api.ttsforfree.com/mcp
Vendor documentation

What you can do with it

  • Generate narration audio from text using single or multi-voice TTS
  • Create synchronized dubbed audio tracks from SRT subtitle files
  • Design custom AI voices or clone existing voices for branding
  • Localize videos by generating dubbed audio tracks in multiple languages

Source and maintenance

Community listingRegistry 1.0.0
mcp-registry: io.github.CalmNguyen/ttsforfree@1.0.0Source repositoryProject website
Maintenance checked

Protocol and capabilities

Server
ttsforfree 1.0.0
MCP protocol
2025-06-18
Tools
21 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
4 advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": false
  },
  "prompts": {
    "listChanged": false
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

TTSForFree turns text into natural speech (thousands of AI voices, 100+ languages) and returns hosted MP3 URLs. Rules: 1. Voice first. If the user did not name a voice: call list_favorite_voices and list_my_custom_voices, then list_voices(language). Always pass the exact `voice` token (v1:...) you received; never build or edit tokens. 2. Pick the tool by who controls the timeline: - text_to_speech: one voice, the audio length may follow the speech (narration, articles, lessons, a new video where scenes can follow the audio). - multi_voice_to_speech: several speakers in order, no fixed timestamps (podcast, dialogue, interview). - srt_to_speech: an existing video or subtitle timeline must be kept (voiceover, dubbing, translated subtitles). Cues start at their timestamps and speed auto-fits each cue. 3. Jobs are asynchronous. If a result says PENDING, call get_job_status with the same job_id and job_type; do not create the job again and never invent or fetch an audio_url before SUCCESS. 4. Credits are real money for the user. For long scripts or many segments call get_account_status first, tell the user the approximate size, and avoid duplicate jobs (check list_recent_jobs when retrying). 5. Video editing: write subtitles with accurate start/end times (one sentence per cue, cue duration >= ~1s per 15 characters), call srt_to_speech, then mux the MP3 with ffmpeg using the commands returned in `video_merge`. The MP3 timeline starts at 00:00 of the video. 6. Show the final audio_url to the user as a link. Report tool errors verbatim; on 429 wait and retry later instead of looping. 7. Video or audio files: create_upload_url, then PUT the file (curl -T), then use public_url. transcribe_media returns the SRT; localize_video dubs a whole video into several languages at once (one audio_url per language for YouTube multi-language audio, plus a dubbed video). YouTube or other external links are never downloaded: ask the user for the original file. If you cannot run commands, ask them to upload on ttsforfree.com and paste the file link. NOTE: Sign-in required. Ask the user to connect their TTSForFree account: in Claude open Settings > Connectors > TTSForFree and click Connect (free account at https://ttsforfree.com). Scripts and agents can instead send the header X-API-Key: YOUR_API_KEY (key from https://ttsforfree.com/en/profile/). Voice browsing (list_languages, list_voices, get_voice_details) works without sign-in.

Tools

21 advertised

list_languages — List languages
Advertised by the server during the last successful anonymous check.
Advertised read-only

List every language supported by TTSForFree text-to-speech. Returns language codes to pass to list_voices.

list_languages input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
list_languages annotations
{
  "title": "List languages",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_voices — Find voices
Advertised by the server during the last successful anonymous check.
Advertised read-only

Search 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.

list_voices input schema
{
  "type": "object",
  "required": [
    "language"
  ],
  "properties": {
    "limit": {
      "type": "integer",
      "default": 25,
      "maximum": 100,
      "minimum": 1
    },
    "query": {
      "type": "string",
      "description": "Optional keywords matched against name, style, persona and use case, e.g. 'warm narrator', 'news', 'young'."
    },
    "gender": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string"
    },
    "language": {
      "type": "string",
      "description": "Language code from list_languages, e.g. en, vi, es, ja."
    },
    "provider": {
      "enum": [
        "Google",
        "Azure",
        "Gemini",
        "OpenAI",
        "FPT"
      ],
      "type": "string",
      "description": "Optional voice engine filter. Gemini/OpenAI voices are the most expressive."
    },
    "only_usable": {
      "type": "boolean",
      "default": true,
      "description": "Hide voices the current plan cannot use."
    }
  },
  "additionalProperties": false
}
list_voices annotations
{
  "title": "Find voices",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_voice_details — Voice details
Advertised by the server during the last successful anonymous check.
Advertised read-only

Get full metadata for one voice token: persona, use case, accent, pitch, styles, preview audio and credit cost.

get_voice_details input schema
{
  "type": "object",
  "required": [
    "voice"
  ],
  "properties": {
    "voice": {
      "type": "string",
      "description": "Voice token (v1:...) from list_voices, favorites or custom voices."
    }
  },
  "additionalProperties": false
}
get_voice_details annotations
{
  "title": "Voice details",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_my_custom_voices — My custom voices
Advertised by the server during the last successful anonymous check.
Advertised read-only

List 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_my_custom_voices input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
list_my_custom_voices annotations
{
  "title": "My custom voices",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_favorite_voices — My favorite voices
Advertised by the server during the last successful anonymous check.
Advertised read-only

List the voices the user marked as favorites, in their saved order. Check this first when the user did not name a voice.

list_favorite_voices input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
list_favorite_voices annotations
{
  "title": "My favorite voices",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
add_favorite_voice — Add favorite voice
Advertised by the server during the last successful anonymous check.

Save a voice to the user's favorites (only when the user asks).

add_favorite_voice input schema
{
  "type": "object",
  "required": [
    "voice"
  ],
  "properties": {
    "voice": {
      "type": "string",
      "description": "Voice token (v1:...) from list_voices."
    }
  },
  "additionalProperties": false
}
add_favorite_voice annotations
{
  "title": "Add favorite voice",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
remove_favorite_voice — Remove favorite voice
Advertised by the server during the last successful anonymous check.
Advertised destructive

Remove a voice from the user's favorites (only when the user asks).

remove_favorite_voice input schema
{
  "type": "object",
  "required": [
    "voice"
  ],
  "properties": {
    "voice": {
      "type": "string",
      "description": "Voice token (v1:...) from list_favorite_voices."
    }
  },
  "additionalProperties": false
}
remove_favorite_voice annotations
{
  "title": "Remove favorite voice",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": true
}
design_custom_voice — Design a custom voice
Advertised by the server during the last successful anonymous check.

Create 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.

design_custom_voice input schema
{
  "type": "object",
  "required": [
    "display_name",
    "gender",
    "language_code",
    "prompt"
  ],
  "properties": {
    "gender": {
      "enum": [
        "male",
        "female"
      ],
      "type": "string"
    },
    "prompt": {
      "type": "string",
      "maxLength": 1500,
      "minLength": 20,
      "description": "Describe age, accent, timbre, personality, energy and pace. Example: 'Calm male documentary narrator in his 40s, deep warm timbre, slow confident pace, neutral American accent.'"
    },
    "display_name": {
      "type": "string",
      "maxLength": 60,
      "minLength": 1
    },
    "language_code": {
      "type": "string",
      "description": "BCP-47 locale, e.g. en-US, vi-VN."
    }
  },
  "additionalProperties": false
}
design_custom_voice annotations
{
  "title": "Design a custom voice",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
get_account_status — Account status
Advertised by the server during the last successful anonymous check.
Advertised read-only

Show 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_account_status input schema
{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}
get_account_status annotations
{
  "title": "Account status",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
text_to_speech — Text to speech
Advertised by the server during the last successful anonymous check.

Convert 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.

text_to_speech input schema
{
  "type": "object",
  "required": [
    "text",
    "voice"
  ],
  "properties": {
    "text": {
      "type": "string",
      "minLength": 1,
      "description": "Text to read. Plain text; long text is split and merged automatically."
    },
    "pitch": {
      "type": "number",
      "default": 0,
      "maximum": 100,
      "minimum": -100,
      "description": "Only some providers support pitch."
    },
    "voice": {
      "type": "string",
      "description": "Voice token (v1:...)."
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
text_to_speech annotations
{
  "title": "Text to speech",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
multi_voice_to_speech — Multi-voice audio (podcast / dialogue)
Advertised by the server during the last successful anonymous check.

Render 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.

multi_voice_to_speech input schema
{
  "type": "object",
  "required": [
    "segments"
  ],
  "properties": {
    "segments": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "text",
          "voice"
        ],
        "properties": {
          "text": {
            "type": "string",
            "minLength": 1
          },
          "speed": {
            "type": "number",
            "default": 1,
            "maximum": 2.5,
            "minimum": 0.5
          },
          "voice": {
            "type": "string",
            "description": "Voice token (v1:...)."
          },
          "volume": {
            "type": "number",
            "default": 1,
            "maximum": 2,
            "minimum": 0
          },
          "pause_after_ms": {
            "type": "integer",
            "default": 300,
            "maximum": 10000,
            "minimum": 0,
            "description": "Silence after this segment."
          }
        },
        "additionalProperties": false
      },
      "minItems": 1
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
multi_voice_to_speech annotations
{
  "title": "Multi-voice audio (podcast / dialogue)",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
srt_to_speech — Subtitles to speech (video voiceover / dubbing)
Advertised by the server during the last successful anonymous check.

Create 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.

srt_to_speech input schema
{
  "type": "object",
  "properties": {
    "srt": {
      "type": "string",
      "description": "Full SRT or WebVTT content."
    },
    "voice": {
      "type": "string",
      "description": "Default voice token for cues without a speaker/voice."
    },
    "segments": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "text",
          "start_ms",
          "end_ms"
        ],
        "properties": {
          "text": {
            "type": "string",
            "minLength": 1
          },
          "speed": {
            "type": "number",
            "maximum": 2.5,
            "minimum": 0.5
          },
          "voice": {
            "type": "string",
            "description": "Optional per-segment voice token; defaults to `voice`."
          },
          "end_ms": {
            "type": "integer",
            "minimum": 1
          },
          "start_ms": {
            "type": "integer",
            "minimum": 0
          }
        },
        "additionalProperties": false
      },
      "description": "Alternative to srt: timed segments."
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    },
    "speaker_voices": {
      "type": "object",
      "description": "Map speaker name -> voice token, e.g. {\"Host\": \"v1:...\", \"Guest\": \"v1:...\"}.",
      "additionalProperties": {
        "type": "string"
      }
    },
    "max_speech_rate": {
      "type": "number",
      "default": 1.5,
      "maximum": 2.5,
      "minimum": 0.8,
      "description": "Highest auto-fit speed when a cue is too short for its text."
    },
    "min_speech_rate": {
      "type": "number",
      "default": 0.95,
      "maximum": 2.5,
      "minimum": 0.8,
      "description": "Lowest auto-fit speed. Set min = max for a fixed speed."
    }
  },
  "additionalProperties": false
}
srt_to_speech annotations
{
  "title": "Subtitles to speech (video voiceover / dubbing)",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
get_job_status — Job status
Advertised by the server during the last successful anonymous check.
Advertised read-only

Check 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_job_status input schema
{
  "type": "object",
  "required": [
    "job_id",
    "job_type"
  ],
  "properties": {
    "job_id": {
      "type": "integer",
      "minimum": 1
    },
    "job_type": {
      "enum": [
        "single",
        "multi",
        "srt"
      ],
      "type": "string",
      "description": "single = text_to_speech, multi = multi_voice_to_speech, srt = srt_to_speech."
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
get_job_status annotations
{
  "title": "Job status",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
list_recent_jobs — Recent jobs
Advertised by the server during the last successful anonymous check.
Advertised read-only

List the user's most recent speech jobs with status and audio URLs, to reuse earlier audio instead of paying again.

list_recent_jobs input schema
{
  "type": "object",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1
    },
    "job_type": {
      "enum": [
        "single",
        "multi",
        "srt"
      ],
      "type": "string",
      "default": "single"
    }
  },
  "additionalProperties": false
}
list_recent_jobs annotations
{
  "title": "Recent jobs",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
get_job_detail — Job segments (for Remotion / editors)
Advertised by the server during the last successful anonymous check.
Advertised read-only

Get 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_detail input schema
{
  "type": "object",
  "required": [
    "job_id"
  ],
  "properties": {
    "job_id": {
      "type": "integer",
      "minimum": 1
    }
  },
  "additionalProperties": false
}
get_job_detail annotations
{
  "title": "Job segments (for Remotion / editors)",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
create_upload_url — Upload a video/audio file
Advertised by the server during the last successful anonymous check.

Get 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.

create_upload_url input schema
{
  "type": "object",
  "required": [
    "file_name"
  ],
  "properties": {
    "file_name": {
      "type": "string",
      "description": "Original file name with extension, e.g. lesson-01.mp4"
    },
    "file_size_bytes": {
      "type": "integer",
      "minimum": 1
    }
  },
  "additionalProperties": false
}
create_upload_url annotations
{
  "title": "Upload a video/audio file",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
transcribe_media — Transcribe video/audio to SRT
Advertised by the server during the last successful anonymous check.

Speech-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.

transcribe_media input schema
{
  "type": "object",
  "required": [
    "media_url",
    "language"
  ],
  "properties": {
    "language": {
      "type": "string",
      "description": "Spoken language code, e.g. vi, en, ja."
    },
    "media_url": {
      "type": "string",
      "description": "public_url from create_upload_url (or a ttsforfree CDN link)."
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
transcribe_media annotations
{
  "title": "Transcribe video/audio to SRT",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
get_transcription — Transcription status
Advertised by the server during the last successful anonymous check.
Advertised read-only

Check a transcribe_media job and get its SRT once finished.

get_transcription input schema
{
  "type": "object",
  "required": [
    "job_id"
  ],
  "properties": {
    "job_id": {
      "type": "integer",
      "minimum": 1
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
get_transcription annotations
{
  "title": "Transcription status",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
estimate_video_localization — Estimate video dubbing cost
Advertised by the server during the last successful anonymous check.
Advertised read-only

Estimate 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.

estimate_video_localization input schema
{
  "type": "object",
  "required": [
    "source_language",
    "targets"
  ],
  "properties": {
    "targets": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "language",
          "voice"
        ],
        "properties": {
          "voice": {
            "type": "string",
            "description": "Voice token (v1:...) for that language from list_voices / favorites / custom voices."
          },
          "language": {
            "type": "string",
            "description": "Target language code, e.g. en, es, ja."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "One entry per target language (the server allows 10 per job by default)."
    },
    "video_url": {
      "type": "string"
    },
    "source_language": {
      "type": "string"
    },
    "duration_seconds": {
      "type": "number",
      "minimum": 1
    }
  },
  "additionalProperties": false
}
estimate_video_localization annotations
{
  "title": "Estimate video dubbing cost",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}
localize_video — Dub a video into other languages
Advertised by the server during the last successful anonymous check.

Full 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.

localize_video input schema
{
  "type": "object",
  "required": [
    "video_url",
    "source_language",
    "targets"
  ],
  "properties": {
    "targets": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "language",
          "voice"
        ],
        "properties": {
          "voice": {
            "type": "string",
            "description": "Voice token (v1:...) for that language from list_voices / favorites / custom voices."
          },
          "language": {
            "type": "string",
            "description": "Target language code, e.g. en, es, ja."
          }
        },
        "additionalProperties": false
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "One entry per target language (the server allows 10 per job by default)."
    },
    "video_url": {
      "type": "string",
      "description": "public_url from create_upload_url."
    },
    "source_language": {
      "type": "string",
      "description": "Spoken language of the video, e.g. vi."
    },
    "original_audio_volume_percent": {
      "type": "integer",
      "maximum": 100,
      "minimum": 0,
      "description": "Keep the original sound (music/effects) under the new voice at this volume in the dubbed video. 0 = remove."
    }
  },
  "additionalProperties": false
}
localize_video annotations
{
  "title": "Dub a video into other languages",
  "readOnlyHint": false,
  "openWorldHint": false,
  "idempotentHint": false,
  "destructiveHint": false
}
get_localization_status — Video dubbing status
Advertised by the server during the last successful anonymous check.
Advertised read-only

Status of localize_video jobs: current step, and when Completed the dubbed audio_url, final_video_url and translated SRT for each language.

get_localization_status input schema
{
  "type": "object",
  "required": [
    "job_guids"
  ],
  "properties": {
    "job_guids": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 20,
      "minItems": 1
    },
    "wait_seconds": {
      "type": "integer",
      "default": 25,
      "maximum": 50,
      "minimum": 0,
      "description": "Seconds the server waits for the audio before returning. If the job is still PENDING, call get_job_status later with the returned job_id."
    }
  },
  "additionalProperties": false
}
get_localization_status annotations
{
  "title": "Video dubbing status",
  "readOnlyHint": true,
  "openWorldHint": false,
  "idempotentHint": true,
  "destructiveHint": false
}

Prompts

4 advertised

video_voiceover — Voiceover a video

Advertised by the server during the last successful anonymous check.

Write or translate subtitles for a video and generate a timed voiceover track, then give ffmpeg commands to merge it.

target_language
Language of the voiceover, e.g. English, Vietnamese. (required)
voice_style
Optional voice style, e.g. 'calm male narrator', 'energetic female YouTuber'.
keep_original_audio
yes = keep the original sound under the voiceover (ducked), no = replace it.
youtube_multi_language_audio — Dub a YouTube video into many languages

Advertised by the server during the last successful anonymous check.

Turn one video into dubbed audio tracks for YouTube multi-language audio (and dubbed videos).

languages
Target languages, e.g. 'English, Spanish, Japanese'. (required)
source_language
Language spoken in the video (optional, ask if unknown).
voice_style
Optional voice style for every language, e.g. 'friendly male presenter'.
podcast_episode — Create a podcast episode

Advertised by the server during the last successful anonymous check.

Turn a topic or article into a multi-speaker podcast script and render it as one MP3.

topic
Topic, article text or URL summary to discuss. (required)
language
Language of the episode.
speakers
Number or names of hosts, e.g. 'Anna and Minh'.
narrate_text — Narrate text

Advertised by the server during the last successful anonymous check.

Read a text aloud with the best matching voice and return the MP3 link.

text
Text to narrate. (required)
language
Language of the text (optional, detected if empty).
voice_style
Optional style, e.g. 'audiobook', 'news anchor'.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
5834 ms
95th percentile latency
5834 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 5834 ms · metadata changed · 21 tool(s), 4 prompt(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http ttsforfree-mcp https://api.ttsforfree.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add ttsforfree-mcp --url https://api.ttsforfree.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable ttsforfree-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "ttsforfree-mcp": {
      "url": "https://api.ttsforfree.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "ttsforfree-mcp": {
      "type": "streamableHttp",
      "url": "https://api.ttsforfree.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start ttsforfree-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "ttsforfree-mcp": {
      "type": "http",
      "url": "https://api.ttsforfree.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http ttsforfree-mcp https://api.ttsforfree.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "ttsforfree-mcp": {
      "url": "https://api.ttsforfree.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "ttsforfree-mcp": {
      "serverUrl": "https://api.ttsforfree.com/mcp"
    }
  }
}

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