Vocametrix Voice Analysis
Connects Claude to the Vocametrix voice analysis API for clinical speech pathology work. You get 40+ tools covering everything from AVQI and DSI dysphonia metrics to jitter/shimmer analysis, pronunciation scoring, formant extraction, and AI therapy plan generation. Handles the upload workflow cleanly: pass base64 audio or public URLs, get back stable blob references you can reuse across analysis calls. Includes agent tools for clinical interpretation, exercise generation, and conversational SLP chat. Ships with SOAP note prompts and pre/post therapy comparison templates. Built for speech language pathologists who want programmatic access to acoustic measures without writing API clients. Free trial gives you 5 minutes of analysis to test the full toolkit.
- tools
- 41
- auth
- Secret needed
- transport
- STDIO
- env var
- 1
- last updated
- May 10, 2026
Tools
41 toolsPublic tool metadata for what this MCP can expose to an agent.
vocametrix_calculate_avqiAcoustic Voice Quality Index (AVQI) — overall dysphonia severity
Acoustic Voice Quality Index (AVQI) — overall dysphonia severity
No parameter schema in public metadata yet.
vocametrix_calculate_dsiDysphonia Severity Index (DSI)
Dysphonia Severity Index (DSI)
No parameter schema in public metadata yet.
vocametrix_calculate_cppCepstral Peak Prominence — breathiness, hoarseness
Cepstral Peak Prominence — breathiness, hoarseness
No parameter schema in public metadata yet.
vocametrix_calculate_hnrHarmonics-to-Noise Ratio (multi-band)
Harmonics-to-Noise Ratio (multi-band)
No parameter schema in public metadata yet.
vocametrix_calculate_jitter_shimmerPeriod and amplitude perturbation
Period and amplitude perturbation
No parameter schema in public metadata yet.
vocametrix_calculate_voice_range_profileVoice Range Profile
Voice Range Profile
No parameter schema in public metadata yet.
vocametrix_calculate_prosody_similarityProsody similarity between two utterances
Prosody similarity between two utterances
No parameter schema in public metadata yet.
vocametrix_calculate_spectralSpectral tilt, slope, and formant energy
Spectral tilt, slope, and formant energy
No parameter schema in public metadata yet.
vocametrix_calculate_formantsFormant frequencies F1–F4
Formant frequencies F1–F4
No parameter schema in public metadata yet.
vocametrix_calculate_sz_ratioS/Z phonation ratio
S/Z phonation ratio
No parameter schema in public metadata yet.
vocametrix_calculate_gneGlottal-to-Noise Excitation
Glottal-to-Noise Excitation
No parameter schema in public metadata yet.
vocametrix_calculate_h1_h2H1–H2 harmonic difference
H1–H2 harmonic difference
No parameter schema in public metadata yet.
vocametrix_calculate_abiAcoustic Breathiness Index
Acoustic Breathiness Index
No parameter schema in public metadata yet.
vocametrix_calculate_voice_dynamicsDynamic range and fundamental frequency statistics
Dynamic range and fundamental frequency statistics
No parameter schema in public metadata yet.
vocametrix_measure_ddkDiadochokinesis (pa-ta-ka): syllable rate, regularity, acceleration, Pierce 2013 norms for 65-86
Diadochokinesis (pa-ta-ka): syllable rate, regularity, acceleration, Pierce 2013 norms for 65-86
No parameter schema in public metadata yet.
vocametrix_upload_audioUpload a WAV file (base64) → returns a stable blobUrl
Upload a WAV file (base64) → returns a stable blobUrl
No parameter schema in public metadata yet.
vocametrix_ingest_urlIngest a public HTTPS WAV URL → returns a stable blobUrl
Ingest a public HTTPS WAV URL → returns a stable blobUrl
No parameter schema in public metadata yet.
vocametrix_assess_pronunciationPhoneme-level pronunciation scoring
Phoneme-level pronunciation scoring
No parameter schema in public metadata yet.
vocametrix_assess_pronunciation_with_pitchPronunciation + pitch analysis combined
Pronunciation + pitch analysis combined
No parameter schema in public metadata yet.
vocametrix_transcribe_audioStreaming ASR transcription with progress
Streaming ASR transcription with progress
No parameter schema in public metadata yet.
vocametrix_synthesize_speechText-to-speech synthesis
Text-to-speech synthesis
No parameter schema in public metadata yet.
vocametrix_measure_sound_levelSound level in uncalibrated dB over a time window
Sound level in uncalibrated dB over a time window
No parameter schema in public metadata yet.
vocametrix_extract_egemapsGeneva Minimalistic Acoustic Parameter Set, GeMAPS v01b (62 features)
Geneva Minimalistic Acoustic Parameter Set, GeMAPS v01b (62 features)
No parameter schema in public metadata yet.
vocametrix_detect_phonemesFrench phoneme detection with confidence scores and timestamps
French phoneme detection with confidence scores and timestamps
No parameter schema in public metadata yet.
vocametrix_classify_stutteringDysfluency classification
Dysfluency classification
No parameter schema in public metadata yet.
vocametrix_interpret_voice_metricsClinical interpretation of voice metrics
Clinical interpretation of voice metrics
No parameter schema in public metadata yet.
vocametrix_generate_exercisesPersonalized voice/speech exercise generation
Personalized voice/speech exercise generation
No parameter schema in public metadata yet.
vocametrix_generate_word_listTarget word list generation for therapy
Target word list generation for therapy
No parameter schema in public metadata yet.
vocametrix_chat_speech_therapistConversational AI speech-language therapist
Conversational AI speech-language therapist
No parameter schema in public metadata yet.
vocametrix_convert_french_to_ipaFrench text → IPA phonetic transcription
French text → IPA phonetic transcription
No parameter schema in public metadata yet.
vocametrix_interpret_spelling_attemptSpelling correction agent
Spelling correction agent
No parameter schema in public metadata yet.
vocametrix_check_syntaxSyntax checking agent
Syntax checking agent
No parameter schema in public metadata yet.
vocametrix_vocabulary_tutorVocabulary tutoring agent
Vocabulary tutoring agent
No parameter schema in public metadata yet.
vocametrix_adapt_exerciseAdaptive exercise generation
Adaptive exercise generation
No parameter schema in public metadata yet.
vocametrix_generate_therapy_planGenerate an AI therapy plan
Generate an AI therapy plan
No parameter schema in public metadata yet.
vocametrix_get_therapy_statusPoll therapy plan generation status
Poll therapy plan generation status
No parameter schema in public metadata yet.
vocametrix_get_therapy_resultFetch completed therapy plan
Fetch completed therapy plan
No parameter schema in public metadata yet.
vocametrix_approve_therapy_planApprove a therapy plan
Approve a therapy plan
No parameter schema in public metadata yet.
vocametrix_full_voice_assessmentParallel AVQI + CPP + HNR + jitter/shimmer + spectral
Parallel AVQI + CPP + HNR + jitter/shimmer + spectral
No parameter schema in public metadata yet.
vocametrix_batch_pronunciationAssess a folder of WAV files. Reads the server's own filesystem, so it is only registered in stdio/local mode (VOCAMETRIX_MCP_LOCAL_FS=1) — not available on the hosted server
Assess a folder of WAV files. Reads the server's own filesystem, so it is only registered in stdio/local mode (VOCAMETRIX_MCP_LOCAL_FS=1) — not available on the hosted server
No parameter schema in public metadata yet.
vocametrix_full_therapy_workflowGenerate → poll → fetch → approval flow
Generate → poll → fetch → approval flow
No parameter schema in public metadata yet.
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VOCAMETRIX_API_KEY*secretYour Vocametrix API key. Get one free at https://www.vocametrix.com/registration
Readme
@vocametrix/mcp-server
Official Model Context Protocol server for the Vocametrix voice analysis API.
Gives any MCP-compatible AI assistant (Claude Desktop, Cursor, Cline, etc.) direct access to clinical voice metrics, pronunciation assessment, speech transcription, and AI-powered therapy planning.
Quick start
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
{
"mcpServers": {
"vocametrix": {
"command": "npx",
"args": ["-y", "@vocametrix/mcp-server"],
"env": {
"VOCAMETRIX_API_KEY": "your-api-key-here"
}
}
}
}
Get an API key at vocametrix.com/registration. MCP analysis uses purchased API credits; the website subscription and trial do not cover API calls.
Claude Code
Hosted server (no local install):
Details
- Repository
- github.com/pmarmaroli/vocametrix-mcp
- Website
- www.vocametrix.com/api-docs
- Package
@vocametrix/mcp-server- Transport
- STDIO
- Auth
- Required
- Registry
- MCP registry, active