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NiceVois

R0· no sign-in

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

v1.2.0 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality74needs work
Trust80of 100
Uptime, 30 days100%
Latency p50262 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "rvc-training": {
      "type": "http",
      "url": "https://nicevois.com/api/mcp"
    }
  }
}
claude mcp add --transport http rvc-training https://nicevois.com/api/mcp
[mcp_servers.rvc-training]
url = "https://nicevois.com/api/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "rvc-training": {
      "type": "remote",
      "url": "https://nicevois.com/api/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "rvc-training": {
      "type": "http",
      "url": "https://nicevois.com/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=rvc-training&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbmljZXZvaXMuY29tL2FwaS9tY3AifQ%3D%3D"
}
{
  "servers": {
    "rvc-training": {
      "type": "http",
      "url": "https://nicevois.com/api/mcp"
    }
  }
}
{
  "mcpServers": {
    "rvc-training": {
      "httpUrl": "https://nicevois.com/api/mcp"
    }
  }
}
extensions:
  "rvc-training":
    enabled: true
    name: "rvc-training"
    type: streamable_http
    uri: "https://nicevois.com/api/mcp"
    timeout: 300

Quality 74 / 100needs work

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 hygiene86 · 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.annotations16 of 16 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_training_account (idempotentHint); quote_training (idempotentHint); list_training_jobs (idempotentHint); …
  • pass
    tools.token_costabout 2,671 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability50 · weight 15
  • pass
    stability.changes5 tool changes in 30 days
  • fail
    stability.rug_pull1 tools kept their name but changed most of their description in 30 days; review before trusting them
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

16 tools, about 2,671 tokens to load them all · tool set 73a4a5bf7517 · tools last changed 2026-10-07 · checked 2026-10-19 10:52 UTC

Tool changes

  • create_free_audio_jobchangeddescription
    before

    Split stems, isolate vocals, or remove noise or reverb. No account needed. All four audio tools share 10 free minutes per rolling 24 hours; subscribers have unlimited use. Returns an upload URL, then use get_free_audio_job.

    after · 74% of words in common

    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.

  • create_free_audio_jobchangeddescription
    before

    Split stems, isolate vocals, or remove noise or reverb. No account needed. Stem downloads include 10 free minutes per rolling 24 hours; subscribers have unlimited separation. Returns an upload URL, then use get_free_audio_job.

    after · 79% of words in common

    Split stems, isolate vocals, or remove noise or reverb. No account needed. All four audio tools share 10 free minutes per rolling 24 hours; subscribers have unlimited use. Returns an upload URL, then use get_free_audio_job.

  • get_free_audio_jobchangedoutput schema
  • create_free_audio_jobchangeddescription, output schemameaning changed
    before

    Use this when the user wants to split a song into stems (vocals and instrumental), isolate or remove vocals, make an acapella or a karaoke instrumental, split the lead vocal from the backing vocals, or remove background noise or reverb from a recording. Free, no account. Returns a one-time upload URL: PUT the file's bytes to it, then call get_free_audio_job with the returned id.

    after · 31% of words in common

    Split stems, isolate vocals, or remove noise or reverb. No account needed. Stem downloads include 10 free minutes per rolling 24 hours; subscribers have unlimited separation. Returns an upload URL, then use get_free_audio_job.

  • list_free_audio_toolschangedoutput schema

Full history: list_changes · trend: quality JSON.

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 80 / 100

no-repository
provenance55
liveness100
freshness85
hygiene80

+dns-namespace +website +reachable +uptime-100% ~updated-31d-ago -no-repository

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://nicevois.com/api/mcp streamable-httpnoneyes100%262 ms2025-11-252026-10-19

Tools (16)

create_free_audio_jobSplit 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.
create_training_jobCreates 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.
create_voice_conversionUse 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.
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. Returns a one-time PUT upload instruction. After uploading, call list_voice_models to select the imported voice.
download_voice_conversion_outputUse 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.
get_conversion_requirementsread-onlyUse 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.
get_free_audio_jobread-onlyUse 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.
get_training_accountread-onlyCall 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.
get_training_jobread-onlyUse 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.
get_training_requirementsread-onlyUse this before training an AI voice to confirm NiceVois input formats, duration and epoch limits, consent requirements, outputs, retention, and the exact upload workflow.
get_voice_conversionread-onlyUse 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.
list_free_audio_toolsread-onlyUse 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.
list_training_jobsread-onlyUse this to find the authenticated user's recent NiceVois jobs before asking for a job ID they may not know.
list_voice_modelsread-onlyUse 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.
quote_trainingread-onlyCall 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.
start_trainingUse 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.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.nicevois/rvc-training",
  "icons": [
    {
      "src": "https://nicevois.com/nicevois-mark.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "NiceVois",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://nicevois.com/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.0",
  "websiteUrl": "https://nicevois.com/agent-api",
  "description": "Free stem, lead/backing vocal, noise and reverb splitting, no account. Train and use RVC voices."
}