speech-expert

speech-expert is a skill for Claude Code from sandraschi/speech-mcp. It costs 36 tokens per session (919 once invoked), scanned A, original, MIT.

A guide to speech-mcp, an MCP server and web app for turning text into speech, speech into text, and handling live voice interactions. It covers multiple speech providers, including offline and cloud options.

In plain words
What is it for?
Use it for audio-file transcription, streaming speech recognition, text-to-speech, wake words, barge-in handling, realtime voice sessions, and voice command routing.
Why use it?
It helps choose a speech method that fits the job, such as file transcription, live partial captions, realtime conversation, or user interruptions.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the speech-mcp plugin — 2 skills shipped together

Good fit Use it for audio-file transcription, streaming speech recognition, text-to-speech, wake words, barge-in handling, realtime voice sessions, and voice command routing.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/sandraschi/speech-mcp/speech-expert
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add sandraschi/speech-mcp --skill speech-expert
Clone the repo
git clone --depth 1 https://github.com/sandraschi/speech-mcp

Made for: Claude Code.

Or install speech-mcp, the plugin that ships this one along with the rest of its 2 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for speech-expert

README.md
[![agentmods](https://agentmods.dev/badge/skills/sandraschi/speech-mcp/speech-expert.svg)](https://agentmods.dev/skills/sandraschi/speech-mcp/speech-expert)
Your own site
<a href="https://agentmods.dev/skills/sandraschi/speech-mcp/speech-expert"><img src="https://agentmods.dev/badge/skills/sandraschi/speech-mcp/speech-expert.svg" alt="Measured on agentmods" height="20"></a>
Per session 36 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 919 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00036 $0.00919
Opus 5 $0.00018 $0.00460
Sonnet 5 $0.00007 $0.00184
Haiku 4.5 $0.00004 $0.00092

Measured 8d ago against content hash 33e4d0c5f47a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

speech-expert scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

src/speech_mcp/skills/speech-expert/SKILL.md · 63 lines

How it starts

The opening of the file, as written. The whole thing — 63 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Speech-MCP Expert

speech-mcp is a multi-provider speech gateway: text-to-speech (TTS), speech-to-text (STT), realtime voice, wake word, and a fleet voice command bus. It runs as an MCP server (stdio or HTTP) with a React webapp.

When to use which STT

Need Use Why
Batch/file transcription transcribe_audio_file (provider funasr) FunASR MLT-Nano: offline, multilingual, VAD+punctuation+diarization
Live streaming with partials streaming_stt (sherpa-onnx) ja/en/de, CPU, emits partials + endpoint
Barge-in / interruption barge_in_feed Completed utterance = interrupt signal
Cloud quality, realtime conversation start_evi_session / Gemini Live Hume EVI or gemini_live
Tiny chunks / stateless transcribe_stream_chunk base64 PCM per fragment

Guidance: default to funasr for accuracy + offline; use streaming_stt when you need text as it is spoken (voice agents, live captions); use barge_in_feed to let the user interrupt the assistant (no echo cancellation - gate mic feeding while it speaks).

TTS providers

text_to_speech(provider=...) - windows (SAPI5, always works), gemini (highest cloud quality, voice=Kore etc.), hume (emotional/expressive), elevenlabs (needs voice_id from manage_voice_clones), gemma (local, SAPI fallback). text_to_dialogue = multi-voice ElevenLabs conversation.

Wake word + voice command bus

  • configure_local_wake_word(action="start|stop|status") - openWakeWord, offline.
  • With FLEET_VOICE_DELEGATE=1 the listener routes wake -> STT -> POST fleet-agent /api/voice/intent. SHERPA_ASR_ENABLED=1 switches capture to streaming (no fixed window) with a follow-up turn.

REST surface

/api/v1/health (provider booleans), /api/v1/diagnostics, /api/tools, /api/skills, /api/v1/tts, /api/v1/voices, /api/v1/transcribe, /api/v1/wake_word, /api/v1/utility, /api/v1/stop, /api/v1/shutdown.

Config essentials

  • FunASR: FUNASR_ENABLED=true, FUNASR_MODEL=FunAudioLLM/Fun-ASR-MLT-Nano-2512 (31 langs incl. en/ja/de), FUNASR_DEVICE=cuda:0|cpu. Requires uv sync --extra funasr.
  • Streaming: SHERPA_ASR_ENABLED=true, SHERPA_ASR_LANG=en|ja|de, SHERPA_BARGE_IN=true. Requires uv sync --extra sherpa + just sherpa-download.
  • Cloud keys: GOOGLE_API_KEY, HUME_API_KEY, ELEVENLABS_API_KEY.

Read the full file on GitHub · 63 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 63 lines · 36 tokens per session scan A 33e4d0c5f47a

Subscribe to this mod's changes

speech-expert is a skill published in the GitHub repository sandraschi/speech-mcp (2 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 919 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

ai-media

Use when a creative goal must become a finished media file: pick and order generative-media models per modality — AI voiceover, image-to-video clips, score — then glue them with ffmpeg (mux, duck, loudnorm, concat). NOT still-image generation/editing (that is replicate-images); NOT code-rendered React compositing…

ericrisco/rsc-harness · 82 tokens

voice-conversations

How voice conversations work with the noisy-coding plugin — trusting [VOICE] messages, answering aloud with the speak tool, spoken-reply conventions, and troubleshooting. Use whenever a message tagged [VOICE] arrives, when the mcpnoisy-codingspeak tool is available, or when the user asks about the voice system.

noisy/noisy-coding · 72 tokens

voice-settings

Choose Cadence Code's local speech and transcription models from the Codex or Antigravity UI. Use only when the user explicitly invokes $voice-settings, /voice-settings, or asks to open Cadence Code settings.

michael-L-i/cadence-code · 47 tokens

elevenlabs-mcp

Generate speech, transcribe audio, create voice agents, compose music, and manage voices using ElevenLabs MCP Server. Use when working with text-to-speech, speech-to-text, voice cloning, conversational AI agents, or music composition.

pmarashian/cursor-agent-skills · 53 tokens

acestep

AI music generation with ACE-Step 1.5 — background music, vocal tracks, covers, stem extraction, audio repainting, and continuation for video production. Use when generating music, soundtracks, jingles, or working with audio stems. Triggers include background music, soundtrack, jingle, music generation, stem…

digitalsamba/claude-code-video-toolkit · 84 tokens

elevenlabs

Generate AI voiceovers, sound effects, and music using ElevenLabs APIs. Use when creating audio content for videos, podcasts, or games. Triggers include generating voiceovers, narration, dialogue, sound effects from descriptions, background music, soundtrack generation, voice cloning, or any audio synthesis task.

digitalsamba/claude-code-video-toolkit · 63 tokens