ZBS Index What actually exists in applied AI, with the source next to it

Voice

Everything here was classified as voice by keyword match against the maintainer's own description, so treat the grouping as a starting point rather than a verdict.

The list is ordered by the most recent commit, not by stars. A popular project that stopped in 2024 is not a better answer than a smaller one shipped last week.

Worked on in the last 90 days (60)

Someone pushed a commit recently. This is the shortlist worth trying first.

  • ai.tuteliq/mcp — last commit 2026-08-06, v3.13.0
    Detect grooming, bullying, fraud, and 16+ online threats across text, voice, image, and video.
  • Sats4AI - Bitcoin-Powered AI Tools — last commit 2026-08-06, v1.5.5
    40+ Lightning-paid AI tools for agents: calls, SMS, fax, voice, translation. No signup, no keys.
  • Yapitalism — last commit 2026-08-06, v0.1.2
    Drive terminal coding agents by voice, with receipts that never claim more than they proved.
  • io.github.chrischall/crowntowncompost-mcp — last commit 2026-08-06, v0.3.0
    Customer access to the Crown Town Compost portal: pickups, invoices, and skips (AI-built).
  • io.github.chrischall/honeybook-mcp — last commit 2026-08-06, v0.4.4
    HoneyBook client-portal MCP server for Claude — view contracts and invoices from wedding vendors
  • Speko AI — last commit 2026-08-05, v1.0.12
    Manage Speko voice-AI agents, sessions, calls, phone numbers, knowledge bases, evals, and docs.
  • Coach Watts — last commit 2026-08-05, v0.5.25
    Remote MCP server for training, nutrition, wellness, and performance data with OAuth 2.0.
  • io.github.analyticsinmotion/mcp-listen — last commit 2026-08-05, v0.1.1
    Give your AI agents the ability to listen. Microphone capture and speech-to-text.
  • io.github.decibri/mcp-listen — last commit 2026-08-05, v0.6.0
    Give your AI agents the ability to listen. Microphone capture and speech-to-text.
  • dev.voicemode/voicemode — last commit 2026-08-05, v8.12.0
    Natural voice conversations for AI assistants - STT/TTS via MCP
  • WhatsApp MCP — last commit 2026-08-05, v0.1.1
    WhatsApp MCP. SQLCipher-encrypted, scrubber-CI-gated, draft-and-confirm sends, voice transcription.
  • io.github.enzoemir1/invoiceflow-mcp — last commit 2026-08-05, v1.4.0
    AI-powered invoice automation. Create invoices, track payments, and manage cash flow.
  • Jobkeepr — last commit 2026-08-04, v1.0.0
    Manage jobs, customers, scheduling, estimates and invoices for a field service business.
  • Mini Accountant — last commit 2026-08-03, v1.0.0
    Hosted MCP server for Mini Accountant: invoices, expenses, customers, analytics, tax estimates.
  • io.github.docdyhr/macwhisper-mcp-server — last commit 2026-08-03, v1.0.1
    MacWhisper transcription for Claude Desktop. Fully local, no cloud, audio stays on your Mac.
  • com.brainiall/tts — last commit 2026-08-03, v1.0.0
    Hosted pay-per-use TTS: 54 neural voices, 9 languages incl. Brazilian Portuguese. $10 free credits.
  • Speech AI - Pronunciation, STT & TTS — last commit 2026-08-03, v2.3.0
    Pronunciation scoring, speech-to-text, and text-to-speech for language learning
  • io.github.attenlabs/hotato — last commit 2026-08-02, v1.9.0
    Open-source, self-hosted conversation QA for voice agents. MIT.
  • com.agishub/ai-toolkit — last commit 2026-08-02, v2.1.1
    AI tools for agents: chat, summarize, classify, entity extraction, embeddings, transcription. x402
  • io.github.AceDataCloud/mcp-fish — last commit 2026-08-02, v2026.8.1.0
    MCP server exposing the AceDataCloud Fish Audio API (text-to-speech with voice conditioning)
  • Text to Speech — last commit 2026-08-02, v0.4.1
    Reads text aloud locally on Windows, macOS, and Linux. No API key, account, or cloud service.
  • THIRI Chord Intelligence — last commit 2026-08-01, v0.5.2
    Deterministic music theory for agents: analyze, voice, reharmonize, conduct — computed, not guessed
  • Open Archives — last commit 2026-07-31, v1.1.1
    MCP server for Open Archives: Dutch genealogical records and historical page transcriptions.
  • Ludo AI Game Assets — last commit 2026-07-31, v0.9.0
    Generate game assets with AI: sprites, 3D models, animations, sound effects, music, and voices.
  • Name Whisper — ENS Intelligence Layer — last commit 2026-07-31, v1.2.0
    44 MCP tools to search, value, register, trade, and manage ENS names. AI-powered intelligence layer.
  • GlianaAI — last commit 2026-07-31, v0.3.2
    Pay-per-call AI: 59 generative models (image, video, music, speech). No signup, no API key.
  • Dial — last commit 2026-07-30, v1.2.0
    Communication stack for AI agents: SMS, AI voice calls, phone numbers, and account events.
  • BugEzy — last commit 2026-07-30, v1.1.3
    Voice-powered bug reporting with 13 MCP tools. Record bugs by talking; let AI find and fix them.
  • Clipia — last commit 2026-07-30, v1.0.2
    Generate AI images, video, speech, music and presentations from Claude, ChatGPT and Cursor.
  • AgentPhone — last commit 2026-07-29, v0.6.0
    Give AI agents real phone numbers, messages, and voice calls via MCP.
  • io.github.egocen-vivideo/vivideo — last commit 2026-07-28, v1.0.2
    AI video generation via the Vivideo API: auto or manual mode, avatars, voices, brand kits.
  • Bloopo — AI Ad & Creative Studio — last commit 2026-07-28, v0.1.1
    Turn one sentence into finished ads: video ads, UGC, product photos, voiceover, brand kits, A/B.
  • ToughTongue AI — last commit 2026-07-26, v1.0.0
    Create voice-agent scenarios, pull session analytics, place SIP calls, schedule meeting bots.
  • QuickBooks Online MCP Server — last commit 2026-07-26, v0.1.0
    QuickBooks Online MCP server for invoices, customers, and payments. OAuth 2.1 + PKCE, stdio/HTTP.
  • Okareo — last commit 2026-07-25, vpublic-0.0.43
    Simulation, evaluation and monitoring for voice agents.
  • Peil — last commit 2026-07-24, v0.1.3
    Log hours, draft invoices and check where you stand — finance for Dutch freelancers.
  • Sapiens Sintéticos — last commit 2026-07-22, v1.46.4
    Operate your Sapiens Sintéticos AI studio: generate image, article, voice, music and video.
  • dev.pdfops/pdfops-mcp — last commit 2026-07-22, v0.1.1
    Deterministic PDF tools for AI agents: inspect fields, fill forms, merge PDFs, invoices.
  • AIOProductOS Studio — last commit 2026-07-21, v0.2.3
    Turn your AI host into a product videographer: scripted app demos, voice-over, captions, MP4/GIF.
  • InvoiceXML — last commit 2026-07-20, v1.0.0
    Create, validate, convert & extract compliant e-invoices (UBL, Factur-X, ZUGFeRD, XRechnung)
  • com.jamesrosingmd/zenoti — last commit 2026-07-20, v1.0.0
    MCP server for Zenoti spa/wellness/medspa — guests, appointments, bookings, invoices
  • CometChat Docs — last commit 2026-07-20, v0.1.5
    CometChat docs search + implementation bundles: add chat, voice, video & moderation to your app.
  • Text to Speech API — last commit 2026-07-19, v1.1.0
    Convert text to MP3 speech audio in 50+ languages. x402 micropayment.
  • com.billingserv/mcp — last commit 2026-07-18, v0.1.9
    BillingServ MCP server for customers, invoices, orders, packages, licenses, and revenue reports.
  • io.github.csacanam/voulti — last commit 2026-07-17, v0.1.0
    Accept crypto payments from AI agents: invoices + hosted checkout on 5 chains. No API key.
  • io.github.codespar/mcp-bling — last commit 2026-07-16, v0.2.2
    MCP server for Bling — ERP: products, orders, invoices (NF-e/NFS-e), stock, AR/AP, webhooks
  • io.github.codespar/mcp-iugu — last commit 2026-07-16, v0.2.2
    MCP server for iugu — invoices, subscriptions, customers, payment methods
  • io.github.codespar/mcp-omie — last commit 2026-07-16, v0.2.2
    MCP server for Omie — ERP, customers, products, orders, invoices, financials
  • io.github.codespar/mcp-quickbooks — last commit 2026-07-16, v0.2.2
    MCP server for QuickBooks Online (Intuit) — customers, invoices, payments, items, accounts, P&L
  • io.github.codespar/mcp-stark-bank — last commit 2026-07-16, v0.2.2
    MCP server for Stark Bank — transfers, boletos, invoices, Pix, balance
  • io.github.codespar/mcp-stripe-acp — last commit 2026-07-16, v0.1.4
    Stripe ACP — AI agent checkout, payment delegation, products, invoices
  • io.github.codespar/mcp-tiny — last commit 2026-07-16, v0.2.2
    MCP server for Tiny ERP — products, stock, warehouses, price lists, orders, invoices, AP/AR
  • io.github.codespar/mcp-twilio — last commit 2026-07-16, v0.2.2
    MCP server for Twilio — global SMS, WhatsApp, Voice, Verify, and Lookup across 180+ countries
  • io.github.codespar/mcp-vindi — last commit 2026-07-16, v0.2.2
    MCP server for Vindi — recurring billing, subscriptions, invoices
  • io.github.codespar/mcp-xero — last commit 2026-07-16, v0.2.2
    MCP server for Xero — global cloud accounting: contacts, invoices, payments, items, reports
  • io.github.codespar/mcp-zenvia — last commit 2026-07-16, v0.2.2
    MCP server for Zenvia — SMS, WhatsApp, RCS, Email, Voice, Facebook messaging, templates and reports
  • Facture Électronique France — last commit 2026-07-15, v0.8.0
    MCP server for French e-invoicing (XP Z12-013). Manages invoices, validation and compliance.
  • io.github.Hei33enberg/voice-truthgate-mcp — last commit 2026-07-07, v0.1.1
    Honest voice authenticity for AI agents: enrol a voice, verify a call clip. Signal, not verdict.
  • mac-control-mcp — last commit 2026-07-06, v0.8.2
    Native Swift macOS automation — 143 tools: AX, EventKit, voice, browser DOM, undo.
  • io.github.Gomess8/voice-quality-api — last commit 2026-07-02, v0.1.0
    Measure voice/VoIP path quality -> estimated MOS + live network metrics

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How this page is ordered

Entries are grouped by whether anyone is still working on them, using the date of the most recent push to the repository. They are not ordered by stars, because a star is a bookmark somebody left once and never took back.

Where we have not checked an entry yet, it says so rather than being mixed in with the verified ones.