AI voice tools that state HIPAA compliance
The INITE Atlas lists 36. By use, the list opens with Flow, Vapi, Bland, Synthflow and Inworld Support Agents.
The vendor states HIPAA compliance on its own trust, security or privacy page; some offer a BAA. Their statement, read with the date; we did not audit it.
Where each one says so
Ranked by use
Figure and bar: visits/mo, estimate · year: online since
- #9

Flow
Converts speech to polished text in any application across devices.
54.8kActiveFrom $15/user/mo2021 - #10

Vapi
Builds and deploys voice AI agents that handle customer support, lead qualification, and appointment scheduling calls.
32.1kActiveFrom $0.01 per use - #15

Bland
Automates phone calls for enterprises using voice AI agents that run on your infrastructure.
11.6kActiveFrom $0.14 per use - #17

Synthflow
Builds and deploys voice AI agents that handle inbound and outbound phone calls through proprietary telephony infrastructure.
10.9kActiveContact sales2023 - #18

Inworld Support Agents
Provides realtime text-to-speech, speech-to-text, and voice agent infrastructure for consumer applications.
9.5kActiveFrom $25/mo2021 - #25

Speechmatics
Provides speech-to-text and text-to-speech APIs for multilingual conversations with low latency and high accuracy.
5.8kActiveFrom $0.13 per use2006 - #28

FreJun
Provides cloud calling for business teams: a dialer integrated with CRMs, inbound call routing with IVR, call recording and a voice API for developers.
3.4kActiveFrom $16.99/user/mo - #32

OpenWispr
Transcribes speech to text locally or via cloud in any application, with meeting notes and AI chat.
2.5kActiveFrom $6.67/user/mo - #54

User IntuitionMCP · sign-in
Runs AI-moderated voice, video or chat interviews with vetted panelists and turns the recordings into traceable findings.
331ActiveFrom $30 per use2025 - #66

CallClerk
Answers phone calls, books appointments, and transfers to humans using AI voices available 24/7.
141MaintainedFrom $99/mo - #67

KaiCallsMCP · sign-in
Answers forwarded business calls with a voice agent that collects caller details, handles common questions and texts the owner a summary.
141ActiveFrom $10/mo2025 - #74

BotPhoneMCP · sign-in
Answers business phone calls with an AI voice agent that qualifies callers, books appointments and texts call summaries.
127ActiveFrom $100/mo - #87

Roark
Scores and tests voice AI agents on 500 audio metrics before and after production deployment.
48ActiveFrom $0.15 per use2024 - #91

SRIFTMCP · open
Streams files, chat and audio calls directly between browsers or AI agents over encrypted peer-to-peer links, with no server storage.
43Active - #95

AutomateNexus Voice
AI receptionist answers calls in under a second, qualifies leads, and books appointments into calendars 24/7.
38ActiveFrom $49/mo - #102

Brigade
Builds multi-agent AI crews from chatbots, voice agents and workflow automations that share context and hand off tasks.
16MaintainedFrom $49/mo - #103

SealGateMCP · sign-in
Gateway that intercepts AI agent tool calls and data access, enforcing policy and logging each action.
15ActiveFrom $29/mo2025 - #106

Lead FriendlyMCP · open
Answers business phone calls with an AI agent, texts back missed callers, books appointments and logs every call in a CRM.
14ActiveFrom $49/mo2026 - #116

MedPhone
Answers inbound calls, books appointments, and handles refills directly into athenahealth.
12ActiveFrom $150/mo2025 - #119

OnCrew
Answers phone calls for HVAC, plumbing, and electrical contractors, captures job details, and alerts on-call technicians to urgent requests.
11ActiveFrom $49/mo2026 - #126

AgentCall
Provisions phone numbers and SMS for AI agents to make and receive calls, send messages, and extract verification codes.
9ActiveFrom $0.40 per use - #154

Lacy.ai
AI phone agents answer inbound calls, qualify leads, book appointments, and route requests for service businesses.
4ActiveFrom $499/mo - #156

HelmarOps
AI receptionist answers calls, manages leads, sends invoices, and schedules appointments for service businesses.
4ActiveFrom $79/mo2026 - #190

KestrelVoice
AI voice agent answers calls, filters spam, books appointments, and embeds chat on websites for service businesses.
1ActiveFrom $5/mo2024 - #206

Voqua AI
AI receptionist answers calls 24/7, books appointments, and captures leads without human intervention.
1From $0/mo - #220

Fonix.AI by AntEngage
Builds voice agents and chatbots for customer engagement and clinical documentation in Indian languages.
59 linking domainsActive2024 - #237

AI-Reception.ist
Answers business phone calls, WhatsApp and web chats with voice agents that sort inquiries, book appointments and route urgent calls.
30 linking domainsActiveFrom $199/mo - #269

AI Answering
AI voice agents answer and make phone calls, schedule appointments, and route complex calls to human agents.
22 linking domainsActiveFrom $197/mo - #285

AuraVoice One
Accepts and makes calls globally using neural network voice agents for sales, verification, and customer service.
EmergingActiveFrom $39/mo - #316

Pollax
Places and receives AI voice calls in 22 languages with real-time transcription and tool integration.
EmergingActiveFrom $0.02 per use2023 - #324

SnipgetMCP · sign-in
Runs address parsing, phone normalization, fuzzy dedup and identifier checks as MCP tools or REST calls, with no LLM in the loop.
19 installs/moActiveFrom $15/mo 
NextLevel.AI Voice Agents Platform
Runs voice agents that answer inbound calls, book appointments and place outbound sales and support calls for businesses.
11.6kActiveFrom $49/mo
Rev
Transcribes recordings and runs cited searches across case files to draft legal reports and motions.
458kActiveFrom $25.49/user/mo2010
Sonix
Transcribes audio and video files into timestamped text, translates them, and generates subtitles and summaries.
30.5kActiveFrom $25/mo2017
Tempreon™MCP · sign-in
Stores your writing voice and decision patterns and shares them with Claude, ChatGPT and Cursor over MCP.
5ActiveFrom $19/mo
Voicing AI
Runs voice agents that take phone calls, read CRM and core banking records and write back the outcome, inside your own infrastructure.
149Active
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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