# TTSForFree (io.github.CalmNguyen/ttsforfree): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/io.github.CalmNguyen%2Fttsforfree/versions/latest)
- Connected to: https://api.ttsforfree.com/mcp
- Homepage: https://ttsforfree.com/
- Repository: https://github.com/CalmNguyen/ttsforfree-mcp
- Scoring rules: v2
- Tools: 21
- Average: 55.1 / 100 (Cloudy)
- Near-identical pairs: 1

This page shows how TTSForFree (io.github.CalmNguyen/ttsforfree)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

- Minor: The server's instructions are 2458 characters. Claude Code reads only the first 2,048 by default (Codex 0.154.0 reads them whole). Put what the server is for first.

## Tools

- `get_transcription`: 38 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: job_id.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: job_id. Name the tool or the place that returns it, or models look it up first.
- `list_recent_jobs`: 41 / 100
  - Major: Arguments without a description: job_type, limit.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `get_job_detail`: 42 / 100
  - Major: Arguments without a description: job_id.
  - Minor: Says nothing about what it returns.
  - Minor: Required identifiers whose description does not say where the value comes from: job_id. Name the tool or the place that returns it, or models look it up first.
- `get_localization_status`: 47 / 100
  - Minor: Arguments without a description: job_guids.
  - Minor: Says nothing about what it returns.
- `get_voice_details`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `estimate_video_localization`: 48 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: video_url, duration_seconds, source_language.
  - Minor: String arguments with no constraint or example: video_url, source_language.
  - Minor: Says nothing about what it returns.
- `multi_voice_to_speech`: 53 / 100
  - Major: Arguments without a description: segments, segments[].text, segments[].speed, segments[].volume.
  - Minor: String arguments with no constraint or example: segments[].voice.
  - Minor: Says nothing about what it returns.
- `add_favorite_voice`: 54 / 100
  - Minor: Says nothing about what it returns.
- `list_favorite_voices`: 54 / 100
  - Minor: Says nothing about what it returns.
- `remove_favorite_voice`: 54 / 100
  - Minor: Says nothing about what it returns.
- `create_upload_url`: 55 / 100
  - Minor: Arguments without a description: file_size_bytes.
  - Minor: Says nothing about what it returns.
- `get_account_status`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Says nothing about what it returns.
- `get_job_status`: 56 / 100
  - Minor: Arguments without a description: job_id.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: Required identifiers whose description does not say where the value comes from: job_id. Name the tool or the place that returns it, or models look it up first.
- `list_languages`: 56 / 100
  - Major: Says nothing about when to use it, or when not to.
- `localize_video`: 59 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: String arguments with no constraint or example: video_url.
  - Minor: The description mentions none of its 3 or more arguments.
- `transcribe_media`: 59 / 100
  - Major: Says nothing about when to use it, or when not to.
- `srt_to_speech`: 63 / 100
  - Minor: Arguments without a description: segments[].text, segments[].start_ms, segments[].end_ms, segments[].speed.
  - Minor: No `required` list, so every argument is optional.
  - Minor: Says nothing about what it returns.
- `design_custom_voice`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: Arguments without a description: display_name, gender.
  - Minor: The description mentions none of its 3 or more arguments.
- `list_my_custom_voices`: 67 / 100
  - Major: Says nothing about when to use it, or when not to.
- `text_to_speech`: 69 / 100
  - Minor: String arguments with no constraint or example: voice.
- `list_voices`: 76 / 100
  - Minor: Arguments without a description: gender, limit.

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