Tunk.ai Voice AI Agents for customer support and sales calling
Tunk.ai builds and deploys Voice AI Agents for inbound customer support and outbound sales calling, plus speech-to-text APIs, with pay-as-you-go per-minute pricing.
- Best for
- Inbound customer support
- Key capability
- ANCHOR agent builder
Save Tunk, follow its updates and vote on it — everything stays in your account.
Sign in or create a free account
What is Tunk?
Tunk.ai is a platform for building and deploying Voice AI Agents that handle inbound customer support, outbound sales calling and telephony automation. Its ANCHOR agent builder creates agents from plain English and deploys them on a phone line, in an app or through the API, and Tunk.ai also offers speech-to-text and realtime speech-to-text APIs.
Key features of Tunk
Tunk.ai offers voice agents that handle inbound and outbound calls end to end, a cloud dialer for calling campaigns, tools that book and update records mid-call and write outcomes back to Salesforce, HubSpot or Zoho, call analytics and real-time speech to text.
ANCHOR agent builder
ANCHOR builds AI agents from plain English and sets up the voice, prompts, knowledge and call flow.
Inbound and outbound voice agents
Inbound and outbound calls are handled end to end in a natural voice.
Tools, APIs and record updates
Agents book, look up and update records mid-call, then write the outcome back to Salesforce, HubSpot or Zoho.
Call analytics
Every call is scored for sentiment, intent and outcome the moment it ends.
Pros and cons of Tunk
Pros
- Agents built from plain English
- No seat fees and no minimums
- Choice of model behind the agent, from OpenAI to Azure
Cons
- Usage is billed per minute
- Pricing may be high for small businesses with large interaction volumes
Key use cases for Tunk
Inbound customer support
Voice AI Agents answer inbound customer support calls.
Outbound sales calling
Run outbound sales calling campaigns with voice agents.
Calling campaigns
Connect Twilio or Plivo and point a campaign at your list; the agent takes every call.
Speech-to-text transcription
Asynchronous speech-to-text API supporting 50+ languages with speaker diarization and punctuation.
How Tunk works
- 1
Define and configure your agent
Tell ANCHOR what the agent should do, who it talks to and what a good call looks like.
- 2
Equip and connect your agent
Give it the knowledge, tools and actions it needs, then a phone number to call from.
- 3
Test, refine and deploy
Try the conversation, fine-tune how it sounds and take it live when it is ready.
- 4
Review scored calls
Each conversation comes back scored for sentiment, intent and outcome.
Who is using Tunk
Tunk pricing
Pay as you Go
From $0.05/min
Usage billed at the end of each month; no monthly commitment, multi language support, inbound and outbound AI calls, human handoff, post call analytics.
Enterprise
Custom pricing
Custom pricing, dedicated account manager, custom integrations, SLA and priority support, volume discounts and on demand concurrent calls.
Plans and prices are as published by the vendor and can change. Check the official site before you buy. Open the pricing page (opens in a new tab)
Frequently asked questions about Tunk
On a phone line, in your app or through the API.
Currently, Tunk primarily supports English language interactions.
Pay as you go, starting at $0.05/min with usage billed at the end of each month, or custom Enterprise pricing.
Tunk.ai provides Voice AI Agents for inbound customer support, outbound sales calling and telephony automation.
Describe the agent in plain English and ANCHOR sets up the voice, prompts, knowledge and call flow for you.
Yes. It can book, look up and update records mid-call and write the outcome back to Salesforce, HubSpot or Zoho.
Yes. Point the agent at your own documents so its answers come from your material.
Conclusion
Phone calls are the channel: Tunk.ai deploys voice agents that take inbound customer support calls or place outbound sales calls end to end. An agent is described in plain English to the ANCHOR builder, which sets up the voice, prompts, knowledge and call flow before the agent is given tools and a phone number. During a call it can book or update records and write the outcome back to Salesforce, HubSpot or Zoho, and campaigns run through Twilio or Plivo.
Each conversation is scored for sentiment, intent and outcome once it ends. The same company, LogicNimbus, sells speech-to-text and realtime speech-to-text APIs that developers can use on their own. Pricing is pay as you go per minute with no seat fees or minimums, while larger organisations can ask for custom Enterprise terms with SLAs.
Sources
Sign in to review this tool.
Sign In to ReviewNo reviews yet
Be the first to share how this tool worked for you.
Ask about pricing, limits, or how it compares — or answer someone else.
Sign In to AskNo questions yet
Have a question about using or paying for this tool? Be the first to ask.
Featured on TiorAI
More AI API tools
Other tools in the same category, for when this one is not quite the fit.
Ceramic.ai
Ceramic.ai provides web-scale search for AI agents and LLMs through an API and MCP, billed per query.
Maximo AI
Maximo AI trains its own models and offers them through an OpenAI-compatible API and Quick Chat, plus products such as the Syntax coding agent.
TurboLens
TurboLens detects tampered, AI-generated and AI-edited images with visual forensics APIs, then extracts structured data with specialized Southeast Asian OCR.
CassetteAI
CassetteAI is a real-time generative audio API that creates music tracks and sound effects from text prompts, hosted or on device, with TTS launching soon.
GetTxt.AI
getTxt.AI extracts text and markdown from PDFs, images, audio and video in over 50 languages through online tools and a developer API, sold as one-time credit packs.
Vatis Tech
Vatis Tech transcribes audio and video to text in 50+ languages, with speaker labels, translation, subtitle export and a developer speech-to-text API; 10 free minutes to start.
Crustdata
Crustdata provides real-time B2B people and company data through an API or MCP for AI agents, powering sales, recruiting and investment workflows.
Extruct AI
Extruct AI is a company research API that finds and researches any company from a curated 10M-company index or the live web, with a source for every answer.