BotDojo
65AI agents that take real queue work over chat, voice, SMS and email, then get reviewed and tuned.
Best for: Mitratech legal and compliance customers waiting for agentic features inside their system of record
ai-for / voice-agents
As of , EffectHub tracks 35 AI tools for voice agents; 11 (31%) have a free tier, and paid plans run from $5 to $500 a month.
BotDojo, Calldock and ElevenLabs lead the list on click-through. 25 of the 35 ship a public API.
ranked by click-through
AI agents that take real queue work over chat, voice, SMS and email, then get reviewed and tuned.
Best for: Mitratech legal and compliance customers waiting for agentic features inside their system of record
AI voice agent that phones new leads, qualifies them in conversation and books the meeting.
Best for: Sales teams that need inbound leads called back within minutes
Synthetic voices, cloning and dubbing sold by the credit
Best for: Product teams adding narration or voice agents without training a model
Text and voice agents that answer support chats, emails, WhatsApp messages and phone calls in 85+ languages.
Best for: European SMBs in restaurants, clinics, retail or car services with high inbound call volume
API for real-time video avatars that hold a conversation, with a claimed 180 ms average response
Best for: Developers embedding a talking agent into a product with LiveKit or Pipecat already in the stack
Open-source builder for voice and chat agents that answer calls, qualify leads and book meetings.
Best for: Agencies deploying the same agent template across many client accounts
AI phone receptionist for trades: answers missed calls, answers questions and books the job.
Best for: trades and home services losing calls on the job
Text-to-speech and voice-cloning API billed by concurrent stream instead of by character or minute.
Best for: Voice-agent builders needing predictable per-stream cost regardless of usage volume
Build and run AI phone agents that book, qualify and transfer calls, billed by the minute.
Best for: Teams replacing an outbound qualification or booking script
Builds AI phone agents that place and answer calls, book appointments and write the outcome into your CRM
Best for: Small businesses automating appointment booking and inbound qualification
Phone agents for inbound and outbound calls, with 10+ Indian languages and your pick of ASR, LLM and TTS
Best for: Teams running call operations in Hindi, Tamil, Telugu or other Indian languages
Voice AI agents that answer and route business phone calls around the clock.
Best for: Teams replacing overflow call-center capacity
White-label console that lets agencies resell Vapi, Retell, ElevenLabs, Bolna or Ultravox agents
Best for: Agencies packaging voice agents as their own branded monthly product
Speech-to-text API priced by the hour of audio
Best for: Developers embedding transcription into call, meeting or media products
Simulation, monitoring and human review platform for testing and evaluating voice and chat AI agents before and after launch.
Best for: Product and QA teams shipping voice agents in regulated industries such as finance, insurance or healthcare
Low-latency speech recognition and voice agent API
Best for: Engineering teams building real-time transcription or voice agents who want published per-minute rates
Platform for building chat, voice and workflow agents that run inside a customer's own cloud or data center, with an open-source Python SDK.
Best for: Banks, insurers and healthcare groups that need agents on their own infrastructure
Answers a medical or dental practice's phones and texts, books patients and checks insurance
Best for: Dental and medical practices losing bookings to unanswered calls
AI phone agents that make and take business calls for Singapore and Malaysia, priced in Singapore dollars.
Best for: Singapore or Malaysia businesses automating sales and support calls
Enterprise voice agents that resolve customer calls end to end
Best for: Large hospitality, utility, banking and retail operations replacing IVR trees on high-volume lines
Speech-to-text and voice-agent APIs from an Indian vendor, with browser playgrounds for both
Best for: Teams evaluating speech APIs from an India-based vendor
Speech-to-speech model and API for voice agents that skips the transcription step.
Best for: Developers building latency-sensitive voice agents
Developer platform for building and running voice phone agents, billed per minute of call time.
Best for: Developers building phone-based support, booking or qualification agents
Voice agent widget for websites that answers questions, books appointments, and logs every call.
Best for: small businesses wanting a phone/voice FAQ agent on their site
Real-time voice changer plus TTS and phone voice agents
Best for: streamers and gamers swapping voices live on Discord or in-game
Agency that designs, builds and runs AI phone agents on Vapi, Retell or its own licensable voice engine.
Best for: Businesses that want inbound or outbound phone agents built and tuned for them
AI phone agents that take inbound calls, dial out in batches, book appointments and transfer to a human
Best for: Appointment-driven local businesses such as dental or home services
AI phone receptionist that answers calls, texts back, books appointments and queues live callers
Best for: Salons, clinics, contractors and restaurants that miss calls during service
Support agents built on your Jotform forms, deployable to chat, phone, SMS, WhatsApp and kiosks.
Best for: Existing Jotform customers adding a support layer
Business phone and contact-centre platform whose AI voice agent answers calls, qualifies leads and books meetings
Best for: Sales teams losing inbound leads to unanswered after-hours calls
AI voice agent answers business calls around the clock
Best for: Home-service and trades businesses losing after-hours calls
Voice agents that phone a new lead within seconds, then chase by SMS, email and WhatsApp
Best for: Inbound lead teams where response time decides whether a deal happens
Done-for-you AI phone agents that answer inbound calls, book appointments and qualify leads in over 100 languages
Best for: Canadian service businesses that need English and French call coverage
AI phone agent that answers, qualifies and dispatches inbound calls, pitched at trades and home services.
Best for: Plumbers, HVAC and locksmiths who cannot answer while on a job
Build talking 3D-avatar or voice-only assistants and embed them on your site, billed by conversation minute.
Best for: Small clinics or schools wanting a front-desk assistant on their homepage
| Tool | Price | Free plan | API | Status |
|---|---|---|---|---|
| BotDojo | On request | Not confirmed | Not confirmed | Active |
| Calldock | from $49/mo | No | Yes | Active |
| ElevenLabs | from $6/mo | Yes | Yes | Active |
| Triviat | from $174/mo | No | Not confirmed | Active |
| Anam.ai | from $12/mo | Yes | Yes | Active |
| Intervo AI | from $10 once | Yes | Yes | Active |
| Pencil'd | from $50/mo | No | Not confirmed | Unstable |
| Gandr | from $10/mo | Yes | Yes | Active |
| Retell AI | from $0.07/min | Yes | Yes | Active |
| AutoCalls | from $34/mo | No | Yes | Active |
| Bolna | from $0.06/min | No | Yes | Active |
| Phonely AI | On request | Not confirmed | Yes | Active |
| VoiceAIWrapper | from $29/mo | No | Yes | Active |
| AssemblyAI | Not confirmed | No | Yes | Active |
| Coval | from $100/mo | No | Yes | Active |
| Deepgram | from $0.0043/min | Yes | Yes | Active |
| Dynamiq | Not confirmed | Yes | Yes | Active |
| OpenCall | from $450/mo | No | Not confirmed | Active |
| OpenGreet | from $163/mo | No | Not confirmed | Active |
| PolyAI | On request | Not confirmed | Yes | Active |
| Tunk | Not confirmed | No | Yes | Active |
| Ultravox.ai | from $0.05/min | Yes | Yes | Active |
| Vapi | from $0.05/min | No | Yes | Active |
| Voice Flux | from $127/mo | Yes | Not confirmed | Unstable |
| Voice.ai | from $5/mo | Yes | Yes | Active |
| AgentVoice | On request | Not confirmed | Yes | Active |
| Dialora.ai | Not confirmed | No | Yes | Active |
| IsOn24 | from $59/mo | No | Not confirmed | Active |
| Jotform AI Agents | from $39/mo | Yes | Yes | Active |
| JustCall | from $29/seat/mo | No | Yes | Active |
| Simple Phones | from $97/mo | No | Not confirmed | Active |
| Thoughtly | from $500/mo | No | Yes | Active |
| VocaiQ | from $297/mo | No | Not confirmed | Active |
| ZenCall | from $29/mo | No | Yes | Active |
| Ziddny | from $5/mo | No | Not confirmed | Active |
11 of the 35 AI tools for voice agents on EffectHub's list have a free tier — ElevenLabs, Anam.ai, Intervo AI and Gandr; the rest are paid, from $5 a month.
As of October 28, 2026, paid plans for the 35 AI tools for voice agents on EffectHub's list run from $5 to $500 a month. Each card shows the pricing model and the cheapest paid plan as EffectHub last verified it; 11 of the 35 can be started for free.
25 of the 35 AI tools for voice agents on EffectHub's list ship a public API, including Calldock, ElevenLabs, Anam.ai and Intervo AI. The API badge on each card is re-checked against the vendor's documentation.
For journalists, researchers and AI assistants: the figures on this page in one sentence you can quote.
As of October 28, 2026, EffectHub tracks 35 AI tools for voice agents; 11 (31%) have a free tier, and paid plans run from $5 to $500 a month. (EffectHub, “AI Voice Agents”, Oct 2026, https://effecthub.net/ai-for/voice-agents)
Figures as of How we count
These figures are free to use under CC BY 4.0 with a link to this page.