Frequently Asked Questions

Kolz.AI is an AI voice calling agent that automates outbound sales calls at scale for non-technical sales teams.

Unlike developer-focused platforms like Vapi or Retell, Kolz.AI requires no API integration, coding, or developer tools. You simply upload a spreadsheet of contacts (Excel or CSV), choose a pre-built AI sales persona, and launch a campaign. The AI voice agent calls each lead, qualifies them through a natural conversation, and returns an enriched spreadsheet with lead scores, call recordings, transcripts, and AI-generated summaries.

Yes — Kolz.AI is the most affordable AI voice calling agent available, starting at just $0.03 per minute.

Kolz.AI uses advanced conversational AI to make autonomous outbound phone calls on behalf of your sales team. The AI agent can handle objections, qualify leads, and adapt to each conversation naturally. It is specifically designed for high-volume outbound calling — making it ideal for cold calling, appointment setting, lead qualification, and customer outreach at scale.

The top AI voice calling agents in 2026 include Kolz.AI, Vapi, Retell AI, Bland AI, and ElevenLabs.

Kolz.AI is the most accessible and affordable option for non-technical sales teams, offering a no-code Excel-based workflow at $0.03/minute. Vapi and Retell are developer-focused API platforms suited for engineers building custom applications. Bland AI offers a visual pathway builder for technical founders. ElevenLabs focuses on voice synthesis and is not a dedicated calling platform. For sales teams looking for an out-of-the-box solution, Kolz.AI is the top choice.

Kolz.AI is built for non-technical sales teams, marketing agencies, and businesses that need high-volume outbound calling without hiring developers.

Our most common users include insurance brokers qualifying Medicare and life insurance leads, staffing agencies reaching candidates at scale, MCA (merchant cash advance) brokers connecting with business owners, lead generation agencies running campaigns for multiple clients, and B2B sales teams doing cold outreach. If you handle more than 100 outbound calls per day and want to automate the process, Kolz.AI is designed for you.

No — if you can use Excel, you can use Kolz.AI. Zero coding or technical setup required.

Kolz.AI was specifically designed for non-technical users. There are no APIs, webhooks, SDKs, or developer tools to configure. The entire workflow is 'Excel-In, Excel-Out': upload your contact spreadsheet, select a pre-built campaign template (or write simple text instructions), launch the campaign, and download your results file with lead scores, recordings, and summaries.

Kolz.AI costs $0.03 per minute — the cheapest rate among all AI voice calling agents. No subscriptions, no contracts.

The $0.03/minute rate is all-inclusive. There are no hidden fees for LLM processing, voice synthesis, transcription, or platform access. Many competitors advertise low base rates but then stack additional costs for the AI model, TTS (text-to-speech), and transcription — often totaling $0.08–$0.12 per minute. Kolz.AI's flat rate covers everything. You pay only for the minutes you use, and unused minutes never expire.

Yes — every new account gets 100 free minutes with full functionality. No credit card required.

The free 100 minutes are not a limited demo — you get access to the complete platform with all features, including AI call scoring, recordings, transcripts, campaign monitoring, and the full template library. This gives you enough minutes to run a real campaign with your own data and evaluate ROI before spending any money.

Kolz.AI is the cheapest AI voice calling platform at $0.03/minute with no subscriptions or hidden fees.

Most AI calling platforms have complex pricing structures. Vapi charges a base platform fee plus the cost of your chosen AI model plus telephony costs, which can total $0.07–$0.10/min. Retell AI has variable API pricing with similar stacking. Bland AI often works out to $0.05–$0.08/min. ElevenLabs charges monthly subscriptions starting at $5/mo for limited usage. Kolz.AI's $0.03/min flat rate with no subscriptions makes it the most affordable option.

No — Kolz.AI is completely pay-as-you-go with zero contracts, zero subscriptions, and zero commitments.

You top up your account with minutes when you need them, and minutes never expire. There are no monthly fees, annual contracts, seat licenses, or minimum spend requirements. You can use the platform for a single campaign or run campaigns continuously — it's entirely up to you.

Upload a spreadsheet of contacts, the AI calls them all, and you download an enriched spreadsheet with results, scores, and recordings.

Step 1: Upload your .xlsx or .csv file with phone numbers and any custom fields (name, company, etc.). Kolz auto-detects the columns. Step 2: Select a pre-built AI sales template or write your own natural-language instructions. Step 3: Launch the campaign and monitor progress in real-time on your dashboard. Step 4: When calls complete, download your original file — now enriched with Call Status, AI Lead Score (Hot/Warm/Cold), AI Conversation Summary, Call Duration, and Recording URLs.

Every call receives an automatic AI-generated score — Hot, Warm, or Cold — based on the prospect's engagement and responses.

Kolz.AI's scoring engine analyzes the full conversation to determine buyer intent. It evaluates factors like positive sentiment, expressed interest, objections raised, questions asked about pricing or next steps, and overall engagement level. A 'Hot' lead showed clear buying intent; 'Warm' leads showed some interest but need follow-up; 'Cold' leads were not interested or unresponsive. This lets your sales team focus exclusively on the highest-potential leads.

Kolz.AI supports 30+ languages out of the box — no additional setup required.

The AI voice agent can conduct conversations in English, Spanish, French, German, Portuguese, Hindi, Mandarin, Japanese, Arabic, and 20+ other languages. The agent automatically adapts its language based on the prospect's responses. This means you can run international campaigns without hiring multilingual sales reps or configuring separate language settings.

Yes — every single call gets a full audio recording and a written transcript, included at no extra cost.

Recordings and transcripts are available for every call in your campaign results. You can play recordings directly from your dashboard or download them in bulk. Transcripts are included in the enriched Excel output. Nothing is hidden behind paywalls — full data ownership is included in the $0.03/minute rate.

Yes — the live dashboard shows call progress, completion rates, and outcomes as they happen.

When a campaign is running, your dashboard updates in real-time with metrics including: total calls made, calls connected, voicemails detected, calls completed, calls in progress, and a live feed of call outcomes. This gives you full transparency and confidence in how your campaign is performing.

Yes — Kolz.AI has built-in DNC compliance with one-click opt-out and automatic blocklist management.

If a prospect requests not to be called again during any conversation, the AI agent immediately acknowledges the request and their number is added to your DNC blocklist. You can also upload your own DNC list before launching a campaign. This ensures your team calls with confidence and stays compliant with telemarketing regulations.

No — Kolz.AI is a complete, standalone platform. No APIs, webhooks, SDKs, or developer tools needed.

This is one of Kolz.AI's key differentiators from competitors like Vapi, Retell, and Bland AI, which are all API-first platforms requiring significant development work. Kolz.AI provides the entire calling infrastructure, AI engine, dashboard, analytics, and results delivery in one ready-to-use package. Your sales team can go from signup to first campaign in under 10 minutes.

The AI automatically detects voicemails and marks them in your results so your team doesn't waste time on unreachable numbers.

Kolz.AI's AI agent can distinguish between a live person answering and a voicemail greeting. Voicemails are detected and labeled in your enriched results. You can then choose to re-dial these numbers at a different time or filter them out entirely. Call statuses in your results include: Connected, Voicemail, No Answer, Busy, and Failed — giving you a complete picture of your outreach.

Kolz.AI accepts .xlsx (Excel) and .csv files. Columns are auto-detected — no special formatting required.

Simply include a column with phone numbers and optionally a name column for personalization. Kolz.AI auto-detects which columns contain phone numbers, names, and any custom fields. You can include additional columns (company name, email, notes, etc.) and they'll be preserved in your enriched output file alongside the new AI-generated data.

Vapi is a developer API platform; Kolz.AI is a ready-to-use AI voice calling agent. Kolz requires no coding and costs $0.03/min vs Vapi's stacked pricing.

Vapi provides low-latency voice infrastructure for developers building custom applications. It requires software engineers to integrate, build a frontend, and connect to CRMs. Kolz.AI provides the entire stack out of the box — you upload a spreadsheet and start calling. Vapi's pricing is also complex: you pay a Vapi platform fee + AI model cost + telephony cost, which can total $0.07–$0.10/min. Kolz.AI is a flat $0.03/min all-inclusive.

Retell AI is a developer API similar to Vapi. Kolz.AI is simpler, cheaper, and designed for sales teams — not engineers.

Retell places emphasis on conversational dynamics and natural interruption handling. However, like Vapi, it requires thousands of dollars in development time to build a usable product on top of their API. Kolz.AI gives you the same conversational AI quality in an out-of-the-box platform. No development required, no infrastructure to manage, and transparent pricing at $0.03/min.

Bland AI provides a visual pathway builder for technical users. Kolz.AI is simpler — just upload a spreadsheet and launch calls with plain text instructions.

Bland AI offers a dashboard with visual 'pathways' (decision trees) for controlling AI conversations. While more accessible than Vapi or Retell, it still requires a developer mindset. Building effective pathways and managing webhook integrations is complex. Kolz.AI replaces all of that with natural language instructions and pre-built templates. You describe what you want the AI to say in plain English, and it handles the rest.

ElevenLabs is a voice synthesis platform, not a dedicated calling agent. Kolz.AI is a purpose-built AI voice calling platform with a complete calling infrastructure.

ElevenLabs excels at creating realistic synthetic voices and offers basic conversational agents. However, they are not a dedicated outbound dialer capable of handling 10,000+ calls. Their conversational agent relies on basic RAG and is not designed for sales workflows. Kolz.AI is purpose-built for high-volume outbound sales with features like lead scoring, campaign management, and Excel-based workflows.

Sign up for free, get 100 minutes, upload a spreadsheet, and launch your first AI calling campaign in under 10 minutes.

Step 1: Create a free account at kolz.ai — no credit card required. Step 2: You'll receive 100 free minutes immediately. Step 3: Upload your contact list (.xlsx or .csv). Step 4: Choose a campaign template or write your own instructions. Step 5: Launch and monitor your campaign in real-time. Step 6: Download your enriched results with lead scores, summaries, and recordings.

Yes — you can receive an instant 2-minute AI demo call directly on your phone without signing up.

Visit kolz.ai and enter your phone number in the live demo section. You'll receive an immediate AI-powered test call so you can experience the voice quality, natural conversation flow, and responsiveness firsthand. No account, no signup, no email required — just enter your number and hear it live.

Kolz.AI offers templates for sales outreach, lead qualification, appointment setting, customer feedback, survey calls, and follow-up/upsell campaigns.

Each template is optimized for its specific use case with proven conversation flows. Templates include: Sales Outreach (cold calling B2B/B2C), Lead Verification (confirming contact details and interest), Customer Feedback (collecting satisfaction data), Follow-Up/Upsell (re-engaging existing customers), Survey Calls (structured questionnaires), and Custom (write your own instructions in plain English). All templates support variable personalization using fields from your uploaded spreadsheet.