Voice Assistant Sdk
The best 50 Voice Assistant Sdk AI tools - Free & Paid
Explore 50 AI for Voice Assistant Sdk
Voice.ai offers cloud‑and on‑prem AI voice agents for calls, scheduling, and queries, supporting 15+ languages. It provides text‑to‑speech, 10‑second voice cloning, real‑time voice change, noise filtering, and integrates with Salesforce, HubSpot, Zendesk, Slack. APIs and SDKs enable scalable deploym
Freemium
- $5/mo
Voice AI platform that builds conversational agents in five clicks, automating support, sales, and billing calls. It integrates natively with CRMs and databases for real‑time actions, supports multi‑OS softphones, and records transcriptions for audits.
Free
Vapi is an AI tool that facilitates rapid voicebot development for various applications like customer support, sales, telehealth, etc. It provides features such as low-latency streaming, multilingual support, and customizable models to efficiently create sophisticated voice solutions.
Free trial
- $36
11 ai is a voice assistant using ElevenLabs Agents that enables voice-driven task management, customer research, ticket updates, and team messaging via integrations with Perplexity, Linear, and Slack, supporting private MCP servers and fast voice cloning across 5,000+ voices.
Freemium
Voqal lets developers control IDEs, generate code, and run tasks with natural voice, no wake word. It offers edit mode, debug commands, live context data, and customizable AI back‑ends across IDEs and languages for hands‑free coding.
Freemium
Voicy.AI automates customer interactions for offline commerce, handling calls, texts, chat, and voice in real time. It integrates with POS and booking systems, supports SMS/Facebook Messenger, and scales personalized communication while lowering engagement costs.
Freemium
Voiceflow enables teams to create, test, and deploy AI‑powered conversational agents across chat, voice, phone, and web without coding. Its visual editor, real‑time collaboration, and secure deployment pipelines streamline design, evaluation, and omnichannel rollout.
Free
- $50/mo
SoundHound AI is a conversational voice AI platform that provides voice assistants, developer tools, and enterprise AI agents capable of listening, reasoning, and acting. It enables custom voice experiences across industries like automotive, restaurants, and contact centers, with features including
Freemium
ZEGOCLOUD Conversational AI is a comprehensive platform that provides real-time voice, video, and chat APIs. It enhances interactions with AI effects and scalable, low-latency infrastructure for applications in telehealth, education, and gaming.
Freemium
Voice‑enabled AI chatbot works via phone, Zoom, Teams, and web, offering real‑time 24/7 conversations, scheduled calls, memory retention, and actions like emails, calendar events, and Notion notes. It supports business workflows, transcript recording, and custom personas via a developer API.
Freemium
Alan AI is a cloud‑based platform that builds adaptive voice assistants via lightweight SDKs. It auto‑generates code for API calls, supports knowledge‑base imports, offers a visual workflow builder, and provides enterprise‑grade deployment options with multi‑model flexibility.
Freemium
- $1
ElevenCreative is an AI tool that generates ultra-realistic speech, videos, music, and sound effects, offering text-to-speech, voice cloning, and a library of pre-recorded voices for creating personalized content for various applications.
Freemium
- $5/mo
Discuss offers real‑time voice AI tutoring across 30 languages, letting students and educators explore business, history, science, and more without sign‑ups. Sessions generate AI Agent Summary Analysis for review, with continual updates and free nonprofit use.
Freemium
Verve AI Interview Copilot delivers real‑time support on Google Meet, Zoom, Teams, and Chime. It transcribes, detects questions, and suggests answers, offering specialized modes for behavioral, coding, assessments, and HireVue. Supports 25+ languages and aligns with resumes and role descriptions.
Freemium
- $17/mo
OneContact unifies voice, chat, WhatsApp, and social media into a single contact‑center interface, offering real‑time agent assistance, bot automation, sentiment analysis, quality monitoring, workforce optimization, and CRM integration for global scalability.
Free
ParakeetAI delivers real‑time interview answers, integrating with Zoom, Google Meet, Teams, HackerRank, and LeetCode. It transcribes spoken questions, generates responses via GPT‑5, GPT‑4.1 or Claude 4, records shared screens, logs notes, and supports multiple languages and mobile access.
Subscription
- $99.9/mo
Convai enables developers to create 3D conversational characters that perceive vision, voice, and gestures, integrate with Unity, Unreal, or WebGL, and are enriched via document uploads. It offers multilingual support, realistic animation, and scalable deployment across web, mobile, VR, and AR.
Freemium
Visor.ai delivers enterprise‑grade voice and chat agents that learn from business data, automate up to 85 % of interactions, and integrate natively with existing systems. It offers multilingual, human‑like responses, real‑time visibility, compliance safeguards, and analytics for actionable insights.
Freemium
Perso Interactive is a multimodal AI conversational platform delivering real-time, multilingual speech, vision and gesture interactions across PC, mobile and kiosks, with customizable avatars, TTS/voice cloning, precise lip-sync, automated video dubbing and SDK LLM integrations.
Free
Coachvox delivers a 24/7 conversational AI that mirrors a coach’s unique style. It auto‑trains from books, articles, and session transcripts, offers customizable personality sliders, embeds on websites or dashboards, supports multiple languages, and provides analytics for content improvement.
Subscription
- $99/mo
Nextiva AI Customer Experience Platform unifies voice, video, chat, email, and social media into one interface, using XBert to automate routine interactions and route inquiries. It provides assistance, transcription, analytics, and integrates with Salesforce, HubSpot, Zendesk, Teams, and Google Work
Freemium
- $15/mo
Vocads automates inbound/outbound calls, voicemail, follow‑ups, and surveys using AI agents built from templates and database‑driven dialogues. It supports 12+ languages, real‑time dashboards, 24/7 operation, and secure, multi‑channel deployment and integration.
Subscription
KikiVoice is an AI voice cloning tool designed for creators, enabling rapid generation of realistic voice clones from short audio samples. It offers versatile models for various applications, including voiceovers and multilingual content creation.
Deepgram Voice AI offers real‑time and batch speech‑to‑text, text‑to‑speech, and voice‑agent APIs. It delivers low‑latency transcripts, natural‑sounding synthesis, and integrated conversation handling for contact centers, transcription, and podcasts, with cloud, on‑prem, and telephony support.
Freemium
DialogAi turns WhatsApp voice messages into text, uses GPT to answer questions, supports voice/text input, summarizes long messages, researches topics, retains context for ten minutes, then deletes history automatically.
Subscription
- $3.99/mo
Curious Thing AI offers customizable voice assistants Lucy and Sam for businesses. These assistants simplify communication, gather leads, manage calls, and provide multilingual support, resulting in enhanced customer service.
Free trial
AI Voice Agents automates business phone calls using intelligent voice interactions, ensuring 24/7 customer engagement. It enhances communication, reduces human errors, supports multiple languages, and integrates with tools like calendars and CRMs for diverse industry applications.
Freemium
Soniva is a voice-powered AI tool that simplifies data collection through interactive surveys and interviews. It enhances user experience with intelligent question rephrasing, tracks contradictory answers, and delivers detailed reports for improved decision-making.
Freemium
Qlient AI: Revolutionary 24/7 call intake system with lifelike voices. Automates call summaries, scheduling, recording, and delivers personalized experiences using advanced NLP.
Subscription
- $24.92/mo
Sensei AI delivers real‑time, one‑second AI answers during live video interviews. It ingests resumes and personal stories to provide context‑aware responses tailored to job roles, integrates with Zoom, Teams, Meet, and supports over 30 languages with custom tone settings.
Freemium
- $89/mo
Teacher AI offers 24/7 voice‑based conversation practice with AI teacher clones, instant transcription, on‑click vocabulary translations, audio playback, exportable word lists, and automatic fluency tracking for intermediate learners seeking daily speaking drills.
Free trial
Free text‑to‑speech platform supporting advanced AI models. Offers real‑time, natural‑sounding voice with emotion, multi‑language, and voice‑cloning. Users adjust pitch, speed, and parameters. API integration for podcasts, audiobooks, assistants, e‑learning, accessibility.
Free
Enclave AI runs large language models on Mac and iPhone, keeping all text, voice, and document processing offline. It supports on‑device speech recognition, synthesis, and custom assistants, with local, encrypted conversation history and PDF summarization, ensuring privacy.
Freemium
- $9.99/mo
DeepSeek API, available via Kie.ai, provides access to DeepSeek models R1 and V3 for complex reasoning and natural language processing.
Freemium
Vbee Aivoice is an AI text-to-speech platform that converts text into natural-sounding audio across multiple languages. It offers various voices, supports voice cloning, and provides MP3/WAV output, ideal for podcasts, e-learning, and audiobooks.
Freemium
Voxal AI is a serverless chatbot that deploys with one click to AWS, using your OpenAI and Pinecone keys, keeping data inside your account. It offers unlimited messages, real‑time analytics, white‑label options, and scalable, privacy‑first support.
Freemium
Command AI delivers AI‑powered in‑app assistance, offering product tours, nudges, surveys, and checklists. Its Copilot agent provides real‑time walkthroughs and co‑browsing, while API integration ensures context‑aware responses. The platform supports mobile/web, integrates with 24+ tools, and priori
Freemium
Wondershare AI delivers end‑to‑end media creation: it turns scripts into spokesperson videos with multiple voices, generates music, offers real‑time transcription, AI audio cleanup, talking‑photo synthesis, PDF markup, text‑to‑image, multilingual video, object removal, and batch conversion.
Free
The platform provides a suite of tools to create and manage an AI assistant with natural language processing, machine learning, and conversational AI features that can automate tasks like scheduling meetings and answering customer queries.
Freemium
- $40/mo
Jarvis Helpdesk delivers AI‑powered support across 10+ channels, automating common queries and routine tasks. Its AI Copilot gives real‑time agent suggestions, while live chat, knowledge bases, routing, and performance monitoring streamline operations.
Freemium
- $6.67/mo
devAIce® extracts over 7,000 acoustic parameters via its SDK, Web API, and Unity/Unreal plug‑ins, delivering real‑time voice‑expression analytics for XR, automotive, robotics, and healthcare. It supports stress and health biomarker detection, emotion‑aware interfaces, and GDPR‑compliant data handlin
Freemium
Hume AI offers emotion‑intelligent text‑to‑speech, real‑time speech‑to‑speech, and expressive voice cloning across 100+ languages. Developers use TypeScript, Python, .NET, or Swift SDKs to build voice‑design, stage‑direction, and emotion‑analysis features for content creation.
Freemium
- $3/mo
TheLibrarian.io is an AI-driven personal assistant that integrates with WhatsApp and automates email drafting, scheduling, and calendar management while summarizing emails and resolving conflicts. It also integrates with Google Workspace for document access and offers secure web/messaging app suppor
Free trial
- $9.99/mo
Clerk Chat unifies voice, SMS, WhatsApp, and RCS, deploying real‑time agents for lead qualification and appointment scheduling. It integrates with Salesforce, Teams, and Genesys, supports HIPAA/SOC 2 compliance, and enables 24/7 automated outreach through embedded widgets.
Paid
- $29/mo
AI Phone delivers real‑time bilingual subtitles and voice translation for phone, video, and messaging calls in 150+ languages, with instant camera‑text support for signs and menus. Invite contacts via a link—no extra download needed for seamless communication.
Free trial