freetts

endpoint

https://mcp.freetts.org/mcp

protocol

streamable-http ·2025-06-18

authentication

none observed

public key

none — nobody has proven they own this listing · is it yours? claim it

karma

0 · newcomer

Is freetts live?

Yes — it answered the hub's last check (checked 1h ago). It answered 100% of checks over the last 30 days.

Is freetts free to use?

Partly — some of its tools are open, others need a key or payment.

What tools does freetts have?

7 tools: suggest_voice, text_to_speech, dialogue_to_speech, script_to_tracks, check_usage, list_voices, transcribe_audio.

Is freetts safe to connect?

The hub found no text in its card or tool descriptions aimed at the agent reading them. It measures what the server answers, not its code — grant it only the access its tools need.

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

• check_usage open 1h ago

  Show the FreeTTS plan behind this connection and what is left: characters today or this month, requests a minute, HD voices, watermark. Use it when the user asks about limits, their plan, or why a request was refused.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "properties": {}
  }

  arguments 5 lines copy
• list_voices open 1h ago

  List FreeTTS voices for a language or a search word, with the voice id to pass to text_to_speech. Says which voices are free and which need a FreeTTS PRO key (HD and Signature). Use it when the user names a language, accent or gender, or asks what voices exist.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "properties": {
      "limit": {
        "type": "integer",
        "maximum": 200,
        "minimum": 1,
        "description": "How many to return. Default 15."
      },
      "gender": {
        "enum": [
          "female",
          "male",
          "any"
        ],
        "type": "string",
        "description": "Filter by gender."
      },
      "search": {
        "type": "string",
        "description": "A word to match in the voice name or personality, like 'Andrew', 'calm' or 'news'."
      },
      "language": {
        "type": "string",
        "description": "Language or locale, like 'German', 'de-DE', 'Spanish (Mexico)' or 'en'. Empty lists every language."
      },
      "free_only": {
        "type": "boolean",
        "description": "Only voices that work without a FreeTTS key."
      }
    },
    "additionalProperties": false
  }

  arguments 34 lines copy
• transcribe_audio auth-required 1h ago

  Turn a recording into text with FreeTTS speech to text. Give a public https URL to an audio file (mp3, wav, m4a, ogg, webm). Needs a connected FreeTTS PRO account.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "audio_url"
    ],
    "properties": {
      "language": {
        "type": "string",
        "description": "Language of the recording, like 'en-US', 'de-DE', 'Arabic' or 'es', or 'auto' to detect it (default)."
      },
      "audio_url": {
        "type": "string",
        "format": "uri",
        "description": "Public https URL of the audio file."
      }
    },
    "additionalProperties": false
  }

  arguments 19 lines copy
• suggest_voice unknown 8d ago

  Suggest three FreeTTS voices for a language and a use (audiobook, tutorial, ad, news, children's story, meditation, podcast), with a short reason each. Use it when the user has not named a voice.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "language"
    ],
    "properties": {
      "use": {
        "type": "string",
        "description": "What the audio is for, in a few words."
      },
      "gender": {
        "enum": [
          "female",
          "male",
          "any"
        ],
        "type": "string"
      },
      "language": {
        "type": "string",
        "description": "Language or locale, like 'English (US)', 'de-DE' or 'Portuguese (Brazil)'."
      }
    },
    "additionalProperties": false
  }

  arguments 26 lines copy
• text_to_speech unknown never probed

  Convert text to spoken audio with a FreeTTS voice and return a download link to the MP3 (or WAV with a FreeTTS PRO key). Use it when the user wants text read aloud, narrated, or saved as an audio file. Without a FreeTTS key: standard voices, up to 2,000 characters a call, a short spoken "FreeTTS" tag at the end, file kept one hour. With a key: the account's plan (PRO: HD and Signature voices, no tag, 10,000 characters a call, files kept 30 days).

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "text"
    ],
    "properties": {
      "text": {
        "type": "string",
        "maxLength": 30000,
        "minLength": 1,
        "description": "The text to read. Plain text; SSML is not needed."
      },
      "speed": {
        "type": "integer",
        "maximum": 30,
        "minimum": -30,
        "description": "Percent slower (negative) or faster (positive). Default 0."
      },
      "voice": {
        "type": "string",
        "description": "A FreeTTS voice id from list_voices, like en-US-JennyNeural (a short name like 'Jenny' also works). If empty, a good standard voice for the language is chosen."
      },
      "format": {
        "enum": [
          "mp3",
          "wav"
        ],
        "type": "string",
        "description": "mp3 (default) or wav (FreeTTS PRO)."
      },
      "language": {
        "type": "string",
        "description": "Language of the text when no voice is given, like 'German' or 'pt-BR'."
      },
      "include_audio": {
        "type": "boolean",
        "description": "Also return the audio bytes in the result (large). Default false; the link is enough for most clients."
      }
    },
    "additionalProperties": false
  }

  arguments 42 lines copy
• dialogue_to_speech unknown never probed

  Turn a script with several speakers into one audio file, a different FreeTTS voice per speaker, with a pause between lines. Write each line as 'Name: text'. Use it for two-host shows, interviews, scenes, language lessons with two speakers. Needs a connected FreeTTS PRO account.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "script"
    ],
    "properties": {
      "script": {
        "type": "string",
        "maxLength": 25000,
        "minLength": 1,
        "description": "Lines like 'Abd: Tonight we cook shakshuka.' one per line. Names before the colon."
      },
      "voices": {
        "type": "object",
        "description": "Speaker name to FreeTTS voice id, like {\"Abd\": \"en-US-AndrewNeural\", \"Guest\": \"en-US-EmmaNeural\"}. Unnamed speakers get a voice each.",
        "additionalProperties": {
          "type": "string"
        }
      },
      "language": {
        "type": "string",
        "description": "Language of the lines when no voices are given."
      },
      "pause_ms": {
        "type": "integer",
        "maximum": 5000,
        "minimum": 0,
        "description": "Silence between lines in milliseconds. Default 600."
      }
    },
    "additionalProperties": false
  }

  arguments 33 lines copy
• script_to_tracks unknown never probed

  Record a script with exact timing, the way FreeTTS Script mode does: (pause 2) is exactly 2 seconds of silence, (beep), (ding) and (click) play a sound, 'CUE:' lines are read in a second voice, 'TRACK: name' starts a new audio file, 'NAME: line' makes a scene with a voice per character. Returns one file with everything plus one file per track. Use it for ear prompter tracks, voiceovers timed to footage, rehearsal tracks, workout or recipe step audio. Needs a connected FreeTTS PRO account.

  mcp-tool

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  {
    "type": "object",
    "$schema": "http://json-schema.org/draft-07/schema#",
    "required": [
      "script"
    ],
    "properties": {
      "speed": {
        "type": "integer",
        "maximum": 30,
        "minimum": -30,
        "description": "Percent slower or faster for the main lines. Default 0."
      },
      "script": {
        "type": "string",
        "maxLength": 60000,
        "minLength": 1,
        "description": "The script text. See freetts.org/text-to-speech-for-actors for the syntax."
      },
      "my_part": {
        "type": "string",
        "description": "In a scene, the character you play: their lines become timed gaps for you to say them."
      },
      "count_in": {
        "enum": [
          "none",
          "3",
          "5",
          "10"
        ],
        "type": "string",
        "description": "Spoken count-in before each track, one number a second. Default none."
      },
      "cue_voice": {
        "type": "string",
        "description": "Voice for CUE: lines and [bracketed] words. Default Aria."
      },
      "track_end": {
        "enum": [
          "none",
          "beep",
          "end"
        ],
        "type": "string",
        "description": "After the last line of each track: nothing, a long beep, or the word End. Default none."
      },
      "line_voice": {
        "type": "string",
        "description": "Voice for the main lines: a steady voice name or id (Guy, Andrew, Ava, Aria, Jenny, Brian, Emma, Sonia, Ryan, Libby, Natasha, William, Clara, Liam...). Default Guy."
      },
      "sentence_pause_ms": {
        "type": "integer",
        "maximum": 3000,
        "minimum": 0,
        "description": "Silence after each sentence. Default 500."
      },
      "paragraph_pause_ms": {
        "type": "integer",
        "maximum": 5000,
        "minimum": 0,
        "description": "Silence after each paragraph. Default 1000."
      }
    },
    "additionalProperties": false
  }

  arguments 65 lines copy

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