Run high-volume outbound calls from anywhere to US in minutes with smart lead filtering that transforms spreadsheets into sales-ready leads.
Trusted by innovative teams worldwide
No APIs, no complex integrations. Just upload your list and let our agents handle the rest.
Forget complex APIs. Simply upload your .xlsx or .csv lead list. We handle the dialing and return an enriched file with recordings, transcripts, and lead scores.
Stop paying $0.08/min. We offer the industry's lowest rate at $0.03/minute with no monthly subscription fees. You only pay for what you use.
Don't waste your sales team's time on dead leads. Our AI agents qualify prospects, detect voicemails, and filter your list so you focus only on warm opportunities.
Experience the power of our AI agents directly in your browser.
Experience a real-time conversation demo
3 minute demo call • No charge
BUILT DIFFERENT
Managing outbound calls shouldn't mean juggling between 6-10 different tools. With Kolz.Bulk, you get everything you need in one place.




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No subscriptions. No hidden fees. Start with 100 free minutes, then top up anytime.
Sign up & verify your phone to receive:
($0.033 / min)
($0.030 / min)
Have questions about volume pricing or custom integrations?
Email us
sales@kolz.ai
Support (24/7)
Chat with us
HQ
India
Everything you need to know about getting started with Kolz Bulk.