Is there a ready-made alternative to Vapi and Retell AI for SaaS websites?
Kawl Now gives a SaaS website a support agent and a sales agent that talk to visitors in the browser and search only sources your team has approved, with no providers or phone numbers to set up. Each workspace gets its first 50 conversations free.
From Vapi vs Retell AI: web widget, knowledge base and setup
Which voice agent vendors don’t publish their prices?
On 8 October 2026, Voiceflow showed plan prices only inside its app and asked businesses to book a demo, although its credits table listed usage rates. Fin sold Fin Voice through its sales team: Fin’s pricing page described custom pricing, while Intercom’s pricing page listed $1.99 per voice outcome. Vapi, Retell AI, ElevenLabs Agents and Chatbase list prices publicly, and Kawl Now publishes its free allowance.
From Vapi pricing vs Retell AI pricing, and what others charge
Is Kawl Now an alternative to ElevenLabs Agents?
For voice support and sales questions on a SaaS website, yes. Kawl Now gives you separate support and sales agents that talk to visitors in the browser, greet them in English and search only sources you’ve approved. If you also need phone calls, messaging channels or other languages, ElevenAgents covers them.
How do you add ElevenAgents or Kawl Now to a website?
With ElevenAgents, you paste its widget embed into your page, keep the agent public with authentication turned off, and can limit it to your domains with an allowlist. With Kawl Now, you add your site as an allowed origin, paste one script tag and switch on customer calls once your tests look right. Our guide to adding a voice agent to your website covers every step.
Can Kawl Now take phone calls like ElevenAgents?
No. Kawl Now has no phone number for customers to call and doesn’t answer phone calls, so visitors talk to it in their browser on your website. ElevenAgents connects to phone lines through Twilio or a SIP trunk and can place batch outbound calls.
How does ElevenAgents pricing compare with Kawl Now?
ElevenAgents bills by call minutes. On 8 October 2026, its free plan included 15 minutes of calls. After that you could pay as you go at $0.08 a minute with no subscription, or choose a plan from $6 a month on monthly billing, and LLM usage was billed separately on top. Kawl Now counts conversations instead: each workspace gets its first 50 free, each up to 10 minutes, and paid calls aren’t available yet.
How do you add Vapi or Kawl Now to a website?
With Vapi, you load its widget script and add a vapi-widget tag with a public API key and an assistant ID, or build your own interface with its Web SDK. With Kawl Now, you approve the agent’s knowledge, add your site to its allowed origins, paste one script tag before the closing body tag, test from the dashboard and switch on customer calls. Our guide to adding a voice agent to your website walks through each step.
Is there a free Vapi alternative for a website voice widget?
Yes. Kawl Now gives each workspace its first 50 conversations free, a one-time allowance shared by support, sales and test calls, with calls of up to 10 minutes and no card required. Vapi itself starts with $5 of free credits, then charges $0.05 a minute for hosting plus transcriber, model, voice and telephony costs, as listed on 8 October 2026.
Do you need Vapi’s phone numbers, or is browser voice enough?
You need a phone system when customers expect to call a number, or when you want outbound calls or phone call transfers, and Vapi offers those. If visitors only need answers while they’re on your website, browser voice is enough. Kawl Now runs the conversation in the visitor’s browser and has no phone number for customers to call.
How much does Vapi cost per minute?
Vapi charges $0.05 a minute for hosting, plus speech-to-text, the model, the voice and transport at each provider’s listed price, after $5 of free credits. On 8 October 2026, its calculator estimated $82 to $129 a month for 1,000 minutes with Deepgram, OpenAI and ElevenLabs, about $0.08 to $0.13 a minute.
From Vapi pricing vs Retell AI pricing, and what others charge
Does Retell AI support web calls?
Yes. Retell’s docs describe web calls that connect a visitor to a voice agent in the browser through its Web SDK, with no phone number involved, and a website widget with voice, chat and callback modes. Both use a public key limited to your domains.
Can you try Retell AI or Kawl Now without a payment card?
Yes. Retell AI says new accounts start with $10 in free trial credits and need no payment method until you buy a phone number. Kawl Now gives each workspace its first 50 conversations free, and because paid calls aren’t available yet, it doesn’t ask for a card.
How do Retell AI and Kawl Now keep answers up to date?
Retell AI can auto-refresh web pages and re-sync changed Google Drive, OneDrive and Notion sources every 24 hours, so updates reach calls without a manual step. Kawl Now sends every new source and every GitHub re-sync back for approval, so changed docs reach callers only after someone on your team signs them off.
Can Kawl Now take phone calls like Retell AI?
No. Kawl Now runs voice conversations in the visitor’s browser on your website, so it has no phone number for customers to call and doesn’t answer phone calls. If you need an AI agent on a phone line, Retell AI is the better fit.
What is included in Retell AI’s per-minute price?
Retell AI lists $0.07 to $0.31 a minute for voice agents. Its component table lists $0.055 a minute for voice infrastructure, from $0.015 for the voice and a rate for the model you choose, plus $0.015 a minute for a US Twilio number. New accounts get $10 of free credits.
From Vapi pricing vs Retell AI pricing, and what others charge
Is Vapi or Retell AI better for a website voice widget?
Both embed with a short snippet and limit calls to your domains. Vapi’s widget runs in voice or chat mode, while Retell AI’s lets visitors switch between voice and chat and adds a callback mode and reCAPTCHA. Test both with the same questions before you choose.
From Vapi vs Retell AI: web widget, knowledge base and setup
Which costs less, Vapi or Retell AI?
It depends on your model, voice, telephony and call length. On 8 October 2026, Vapi charged $0.05 a minute for hosting plus provider costs, after $5 of credits, and Retell AI listed $0.07 to $0.31 a minute for voice agents, after $10 of credits. Vapi’s calculator estimated $82 to $129 a month for 1,000 minutes with Deepgram, OpenAI and ElevenLabs, about $0.08 to $0.13 a minute.
From Vapi vs Retell AI: web widget, knowledge base and setup
Is Vapi or ElevenLabs Agents cheaper?
It depends on your providers and call length. On 8 October 2026, Vapi charged $0.05 a minute for hosting plus transcriber, model and voice costs, which its calculator put at about $0.08 to $0.13 a minute in total with Deepgram, OpenAI and ElevenLabs. ElevenAgents charged $0.08 a minute plus LLM usage on pay as you go, or bundled minutes into plans from $6 a month.
Can Vapi use ElevenLabs voices?
Yes. ElevenLabs is one of Vapi’s voice providers, through Vapi’s default integration or your own ElevenLabs account, so a Vapi assistant can speak with an ElevenLabs voice while Vapi runs the call, the transcriber and the language model. Vapi’s pricing calculator showed ElevenLabs voices at about $0.015 to $0.024 a minute.
Which has the better website widget, Vapi or ElevenLabs Agents?
They’re close, so test both with your own questions. Vapi’s runs in voice mode or chat mode, with a public key you can restrict to your origins. ElevenAgents’ defaults to voice only and can let visitors switch between voice and text in one conversation, and you can limit it to an allowlist of domains. Kawl Now’s widget is voice only and runs from one script tag.
Is Kawl Now a Voiceflow alternative for website voice?
For spoken support and sales questions on a SaaS website, yes. Kawl Now gives you a ready-made support agent and sales agent for website voice, each searching only the sources your team has approved. It doesn’t replace Voiceflow’s chat, phone, SMS or contact centre handoff.
Does Voiceflow’s web widget support voice?
Yes. Voiceflow’s widget defaults to chat and can add dictation, spoken replies or a hands-free voice mode. Its voice modality makes the conversation behave like a phone call, with no message history on screen, and Voiceflow says voice features consume credits.
Can a Voiceflow agent answer phone calls?
Yes. Voiceflow connects numbers from Twilio, Vonage or Telnyx, or provisions a US or Canadian number, for inbound and outbound calls, and its call forward step can pass a caller to a person. Kawl Now has no phone number and runs every conversation in the browser.
What is the difference between the OpenAI Realtime API and GPT-Live?
Both are OpenAI voice APIs. The Realtime API runs one speech-to-speech model that hears, reasons, uses tools and speaks in a single session, priced per token. GPT-Live is a full-duplex model that listens while it speaks and hands reasoning and tools to a backend model, priced at $0.05 a minute plus that backend’s usage. OpenAI recommends GPT-Live for new conversational voice apps.
From OpenAI Realtime API vs a ready-made website voice agent
Can you use the OpenAI Realtime API on a website without a server?
Not safely. OpenAI says standard API keys belong on your server, which either forwards the browser’s connection offer or creates a short-lived client secret for it. Kawl Now runs that server for you, so its embed holds only a public workspace ID.
From OpenAI Realtime API vs a ready-made website voice agent
Is Ultravox free to try?
Yes, up to a point. On 8 October 2026, Ultravox listed 30 free minutes of calls and unlimited calls in its console’s playground, then $0.05 a minute on pay as you go. Kawl Now gives each workspace its first 50 conversations free, shared by support, sales and tests, with no card required.
Does Ultravox have a website widget?
Not a ready-made one. Its docs describe a JavaScript SDK for web apps, and its one-file quickstart warns that it exposes the API key and isn’t safe for production, so a live site needs a server that creates each call. Kawl Now installs with one script tag.
Why can an Ultravox transcript differ from what the agent heard?
Ultravox says its model hears audio directly and never reads a text transcript. The transcripts in its call history come from a separate speech recognition system and exist to help you read calls, so a transcript can be wrong even when the agent understood the caller. Ultravox suggests listening to the call recording to check.
Does the Deepgram Voice Agent API have a website widget?
Yes. Deepgram’s @deepgram/agents-widget package adds a voice agent to a page with one init call and six layouts. It needs a token factory, an endpoint on your server that fetches short-lived tokens, because the API key must never reach the browser. Kawl Now’s widget needs no server of yours.
How much does the Deepgram Voice Agent API cost per minute?
On 8 October 2026, Deepgram listed $0.075 a minute for the Standard tier on pay as you go, $0.163 for the Advanced tier and $0.050 if you bring your own LLM and text-to-speech. Time is measured by WebSocket connection, and new accounts start with $200 of free credit.
Is the Deepgram Voice Agent API speech-to-speech?
Audio goes in and audio comes out, and Deepgram describes it as a unified speech-to-speech API. Inside, it chains speech-to-text, a language model and text-to-speech, with turn-taking and interruptions handled by the service, so you manage one connection instead of three. Kawl Now runs on OpenAI’s GPT-Live voice model.
What is Cartesia used for?
For voice models and voice agents. Sonic turns text into speech and Ink turns speech into text, both quickly enough for live conversation, and developers call them through an API. Cartesia’s Managed Agents combine them with a language model into hosted voice agents. Other platforms use its voices too: Deepgram offers them directly, and Ultravox connects to them with your own Cartesia key.
Does Cartesia have a website voice widget?
Cartesia’s docs describe phone numbers and a WebSocket API for connecting apps to an agent, not a drop-in widget. A website build needs a server that issues short-lived access tokens and a page that streams microphone audio. Kawl Now installs with one script tag.
Is Cartesia free?
Cartesia has a free plan. On 8 October 2026, it included 20,000 credits for its voice models and $1 of prepaid agent usage a month, about 17 minutes of agent calls at $0.06 a minute. Kawl Now gives each workspace its first 50 conversations free.