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NiceVois

by nicevois.com · remote · no sign-in to list tools · v1.2.0 · published by com.nicevois

Free stem, lead/backing vocal, noise and reverb splitting, no account. Train and use RVC voices.

Changes · 8
CompareRegistry entry

16 tools: 8 change things and 8 only read.

Scanned Oct 21, 2026

2 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http rvc-training https://nicevois.com/api/mcp

Findings

Matches of fixed checks, with the text they matched.

2 warn
  • Warnget_training_account

    The server marks "get_training_account" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "get_training_account" says "get": a word for reading.

    What this check looks for
  • Warnquote_training

    The server marks "quote_training" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The description's first verb is "call": a word for a change.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

16 tools

Changes things 8Claude Code: ask
  • create_free_audio_jobSplit stems, isolate vocals, or remove noise or reverb.No findings

    Why it is in this group

    • The name "create_free_audio_job" says "create": a word for a change.
    Description, as the server wrote it
    Split stems, isolate vocals, or remove noise or reverb. No account needed. Each audio tool includes 10 free minutes every 24 hours; subscribers have unlimited use. Returns an upload URL, then use get_free_audio_job.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
  • create_training_jobCreates a private NiceVois job and returns a one-time PUT upload URL.No findings

    Why it is in this group

    • The name "create_training_job" says "create": a word for a change.
    Description, as the server wrote it
    Creates a private NiceVois job and returns a one-time PUT upload URL. Do not ask for consent before the first attempt because NiceVois remembers the current standing account agreement. If the server returns CONSENT_REQUIRED, ask for one acceptance of the linked standing agreement and retry once with acceptsStandingAgreement=true. This allocates a private training slot but does not start GPU work until the audio is uploaded and start_training is called.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
  • create_voice_conversionUse this when the user has selected a private voice model and wants to convert one vocal recording.No findings

    Why it is in this group

    • The name "create_voice_conversion" says "create": a word for a change.
    Description, as the server wrote it
    Use this when the user has selected a private voice model and wants to convert one vocal recording. Returns a private upload instruction. Upload only the source vocal, then call get_voice_conversion with the same conversion ID.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
  • create_voice_model_importUse this when the user wants to convert with an existing private RVC .pth file or complete model ZIP instead of a voice trained in their NiceVois library.No findings

    Why it is in this group

    • The name "create_voice_model_import" says "create": a word for a change.
    Description, as the server wrote it
    Use this when the user wants to convert with an existing private RVC .pth file or complete model ZIP instead of a voice trained in their NiceVois library. Returns a one-time PUT upload instruction. After uploading, call list_voice_models to select the imported voice.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
  • download_voice_conversion_outputUse after get_voice_conversion says the job is complete and the user wants the cleaned or standard output.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Use after get_voice_conversion says the job is complete and the user wants the cleaned or standard output. Each download uses the source audio's duration from the account's conversion-download minutes. If the exact file was downloaded before, ask before retrying and then set confirmRepeat true.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
  • get_training_accountCall before quoting or creating a training job.1 finding

    Why it is in this group

    • The name "get_training_account" says "get": a word for reading.
    • The description's first verb is "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "get_training_account" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "get_training_account" says "get": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Call before quoting or creating a training job. Returns the connected account's welcome-credit status, available and reserved balance, balance packs, and a private browser link that keeps checkout on this same agent identity.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • quote_trainingCall after inspecting the audio and before creating a job.1 finding

    Why it is in this group

    • The description's first verb is "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "quote_training" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The description's first verb is "call": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Call after inspecting the audio and before creating a job. Returns the exact payable amount, current balance, welcome-credit effect, shortfall, feasibility, and the private balance-page link when more balance is needed.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • start_trainingUse this only after the source audio was successfully PUT to the upload URL returned by create_training_job.No findings

    Why it is in this group

    • The name "start_training" says "start": a word for a change.
    Description, as the server wrote it
    Use this only after the source audio was successfully PUT to the upload URL returned by create_training_job. Starts the private cloud RVC training job.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
    • destructiveHint: false
Only reads 8Claude Code: allow
  • get_conversion_requirementsUse this when a user wants to convert vocals with RVC or compare a normal RVC result with NiceVois cleaned consonants and breaths.No findings

    Why it is in this group

    • The name "get_conversion_requirements" says "get": a word for reading.
    Description, as the server wrote it
    Use this when a user wants to convert vocals with RVC or compare a normal RVC result with NiceVois cleaned consonants and breaths. Returns the real input formats, model choices, workflow, current free-beta policy, and outputs.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • get_free_audio_jobUse this after create_free_audio_job and the upload, no more than every 10 seconds, until the job is completed or failed.No findings

    Why it is in this group

    • The name "get_free_audio_job" says "get": a word for reading.
    Description, as the server wrote it
    Use this after create_free_audio_job and the upload, no more than every 10 seconds, until the job is completed or failed. When it completes, it lists every output file (for example lead vocal, backing vocals, instrumental) with a download link.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • get_training_jobUse this to check truthful stage, completed epochs, ETA, and artifact readiness for one private NiceVois training job.No findings

    Why it is in this group

    • The name "get_training_job" says "get": a word for reading.
    Description, as the server wrote it
    Use this to check truthful stage, completed epochs, ETA, and artifact readiness for one private NiceVois training job. Poll reasonably; do not call more often than every 15 seconds.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • get_training_requirementsUse this before training an AI voice to confirm NiceVois input formats, duration and epoch limits, consent requirements, outputs, retention, and the exact upload workflow.No findings

    Why it is in this group

    • The name "get_training_requirements" says "get": a word for reading.
    Description, as the server wrote it
    Use this before training an AI voice to confirm NiceVois input formats, duration and epoch limits, consent requirements, outputs, retention, and the exact upload workflow.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • get_voice_conversionUse this when checking one private NiceVois conversion.No findings

    Why it is in this group

    • The name "get_voice_conversion" says "get": a word for reading.
    Description, as the server wrote it
    Use this when checking one private NiceVois conversion. Poll no more than once every 10 seconds. Report the returned stage without inventing progress. When complete, present the NiceVois cleaned version first and use download_voice_conversion_output for the version the user requests.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • list_free_audio_toolsUse this to see NiceVois's free audio tools (no account needed): split a song into vocals and instrumental (vocal remover, acapella, karaoke instrumental), split lead vocals from b…No findings

    Why it is in this group

    • The name "list_free_audio_tools" says "list": a word for reading.
    Description, as the server wrote it
    Use this to see NiceVois's free audio tools (no account needed): split a song into vocals and instrumental (vocal remover, acapella, karaoke instrumental), split lead vocals from backing vocals, remove background noise, and remove reverb or echo. Returns each tool's id, the accepted formats, and a website link to give the user when you cannot upload their file yourself.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • list_training_jobsUse this to find the authenticated user's recent NiceVois jobs before asking for a job ID they may not know.No findings

    Why it is in this group

    • The name "list_training_jobs" says "list": a word for reading.
    Description, as the server wrote it
    Use this to find the authenticated user's recent NiceVois jobs before asking for a job ID they may not know.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • list_voice_modelsUse this when the user wants to convert audio and you need to select one of their private NiceVois-trained or uploaded RVC voices.No findings

    Why it is in this group

    • The name "list_voice_models" says "list": a word for reading.
    Description, as the server wrote it
    Use this when the user wants to convert audio and you need to select one of their private NiceVois-trained or uploaded RVC voices. Do not ask for a model ID before calling this tool.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http rvc-training https://nicevois.com/api/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__rvc-training__get_training_requirements",
      "mcp__rvc-training__get_training_job",
      "mcp__rvc-training__list_training_jobs",
      "mcp__rvc-training__get_conversion_requirements",
      "mcp__rvc-training__list_voice_models",
      "mcp__rvc-training__get_voice_conversion",
      "mcp__rvc-training__list_free_audio_tools",
      "mcp__rvc-training__get_free_audio_job"
    ],
    "ask": [
      "mcp__rvc-training__get_training_account",
      "mcp__rvc-training__quote_training",
      "mcp__rvc-training__create_training_job",
      "mcp__rvc-training__start_training",
      "mcp__rvc-training__create_voice_model_import",
      "mcp__rvc-training__create_voice_conversion",
      "mcp__rvc-training__download_voice_conversion_output",
      "mcp__rvc-training__create_free_audio_job"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as rvc-training. Review it before you use it.