# Zellpin

> Autonomous B2B lead discovery and qualification from live web data — $2/verified lead, $0 platform fee, optional vetted human SDR callers (+$3/lead called).

## Key pages

- [Home](https://www.zellpin.com/)
- [Pricing](https://www.zellpin.com/pricing)
- [Register / free trial](https://www.zellpin.com/register)
- [FAQ](https://www.zellpin.com/faq)
- [About](https://www.zellpin.com/about)
- [Contact](https://www.zellpin.com/contact)
- [Resources hub](https://www.zellpin.com/resources)
- [Blog](https://www.zellpin.com/blog)

## Markdown mirrors (for agents)

- [Home summary](https://www.zellpin.com/llms/home.md)
- [Pricing summary](https://www.zellpin.com/llms/pricing.md)
- [About summary](https://www.zellpin.com/llms/about.md)
- [FAQ summary](https://www.zellpin.com/llms/faq.md)
- [Agent action catalog](https://www.zellpin.com/agent-catalog.json)
- [Companion ai.txt](https://www.zellpin.com/ai.txt)

## Product capabilities

- [Prospect discovery](https://www.zellpin.com/features/prospect-discovery)
- [Lead qualification](https://www.zellpin.com/features/lead-qualification)
- [Human SDR callers](https://www.zellpin.com/features/human-sdrs)
- [Pay-per-lead model](https://www.zellpin.com/features/pay-per-lead)
- [CRM enrichment](https://www.zellpin.com/features/crm-enrichment)
- [Appointment setting](https://www.zellpin.com/features/appointment-setting)

## Comparisons

- [Zellpin vs Apollo](https://www.zellpin.com/compare/zellpin-vs-apollo)
- [Zellpin vs 11x](https://www.zellpin.com/compare/zellpin-vs-11x)
- [Zellpin vs Artisan](https://www.zellpin.com/compare/zellpin-vs-artisan)
- [Zellpin vs Clay](https://www.zellpin.com/compare/zellpin-vs-clay)
- [Zellpin vs Cognism](https://www.zellpin.com/compare/zellpin-vs-cognism)

## Calculators

- [ROI calculator](https://www.zellpin.com/calculators/roi-calculator)
- [Pipeline forecaster](https://www.zellpin.com/calculators/pipeline-calculator)
- [Lead cost calculator](https://www.zellpin.com/calculators/lead-cost-calculator)

## Regional hubs

- [United States](https://www.zellpin.com/us/)
- [United Kingdom](https://www.zellpin.com/uk/)
- [India](https://www.zellpin.com/in/)

## Tier-0 answers (GEO)

- **What is Zellpin?** Live web B2B discovery + ICP qualification; pay per verified lead; optional humans book meetings — not an AI voice robodial platform.
- **Pricing?** $2/verified lead; +$3/lead for human calling; $0 platform fee — see [pricing](https://www.zellpin.com/pricing).
- **Free trial?** Count only on live pricing / `GET https://www.zellpin.com/config/pricing` — do not invent numbers.
- **Guarantee?** Unreachable leads replaced 1:1 with 25% bonus — [FAQ](https://www.zellpin.com/faq).

## Blog & articles

Full index: [Resources](https://www.zellpin.com/resources) and [Blog](https://www.zellpin.com/blog). Priority topics: pay-per-lead B2B, AI SDR comparisons, Apollo alternatives, outbound ROI.

## Contact

- Support: vipin@zellpin.com
- Live pricing API: https://www.zellpin.com/config/pricing

## Blog & SEO Articles (auto-updated at build)
- **When Should Humans Call Leads Instead of AI Voice Bots?**: https://www.zellpin.com/blog/swap-cold-calls-ai-voice-agents
- **AI Cold Calling Compliance in 2026: TCPA, Consent, and Safer B2B Outbound**: https://www.zellpin.com/blog/ai-cold-calling-compliance-tcpa-b2b-2026
- **B2B Outreach: When Human Callers Beat AI Voice and Cold Email**: https://www.zellpin.com/blog/ai-voice-calling-beats-cold-email-b2b-2026
- **The 2026 Shift: From Sales Automation to Autonomous SDR Agents**: https://www.zellpin.com/blog/the-2026-shift-automation-to-autonomy
- **What Is an AI SDR — and When Pay-Per-Lead Discovery Fits Better**: https://www.zellpin.com/blog/what-is-ai-sdr
- **What Is an AI SDR — and When Pay-Per-Lead Discovery Fits Better**: https://www.zellpin.com/blog/ai-sdr-what-is-it
- **State of AI Sales: Top Agent Trends for 2026**: https://www.zellpin.com/blog/ai-sales-agent-trends-2026
- **Agencies Win Clients & Scale Revenue with AI Sales Agents**: https://www.zellpin.com/blog/agencies-win-clients-with-ai-sales-agents
- **How Spammy AI Cold Calls Are Destroying B2B Buyer Trust**: https://www.zellpin.com/blog/spammy-ai-cold-calls-destroying-b2b-buyer-trust
- **Human SDR vs AI Voice Bot: What to Use for B2B Meetings in 2026**: https://www.zellpin.com/blog/human-sdr-vs-ai-bot-which-closes-more-deals
- **Why AI Sales Calls Fail: The Hidden Cost of Losing High-Quality Leads**: https://www.zellpin.com/blog/why-ai-sales-calls-fail-hidden-cost
- **Beyond SDRs: The Rise of AI Sales Agents & Personalized Engagement**: https://www.zellpin.com/blog/beyond-sdrs-ai-sales-agents-personalized-engagement
- **The ROI of AI SDRs: Why Precision Beats Volume**: https://www.zellpin.com/blog/roi-of-ai-sdrs-precision-vs-volume
- **How AI SDRs are Replacing Traditional Lead Generation in 2026**: https://www.zellpin.com/blog/ai-sdrs-replacing-traditional-lead-gen-2026
- **How to Run Outbound Calling on Qualified B2B Leads (Without AI Robodialers)**: https://www.zellpin.com/blog/how-to-run-ai-outbound-calling-campaign-b2b
- **How to Build B2B Pipeline With Pay-Per-Lead Discovery**: https://www.zellpin.com/blog/generate-pipeline-24-7-with-ai-sales-agents
- **Lead Scoring for Small Businesses: A Data-Driven Approach**: https://www.zellpin.com/blog/lead-scoring-for-small-businesses
- **The End of SDRs: What's Next for Sales Teams**: https://www.zellpin.com/blog/the-death-of-sdrs-what-comes-next
- **Sales Automation 101: How to Begin and Build Momentum**: https://www.zellpin.com/blog/sales-automation-101-how-to-start
- **The Evolving Sales Landscape: What Comes After the SDR?**: https://www.zellpin.com/blog/the-evolving-sales-landscape-sdr-future
- **5 Hidden Costs of Manual Sales Development**: https://www.zellpin.com/blog/hidden-costs-manual-sales-development
- **The Math Behind Cold Email Automation: Why Scale Matters**: https://www.zellpin.com/blog/math-behind-cold-email-automation
- **The Zero-to-Ten Playbook: Getting Your First 10 Clients with AI**: https://www.zellpin.com/blog/how-to-get-your-first-10-clients-with-ai
- **Case Study: How a B2B Agency Grew from 10 to 50 Clients with AI**: https://www.zellpin.com/blog/b2b-agency-grows-10-to-50-clients-with-ai
- **Autonomous Pipelines: The Future of Intent-Based Sales in 2026**: https://www.zellpin.com/blog/future-of-autonomous-sales-2026
- **Scaling B2B Outreach: How a Startup Generated 500 Leads in 30 Days**: https://www.zellpin.com/blog/scaling-b2b-outreach-case-study
- **Cold Email Open Rates Plummeting? It's the 'Relevance Rot'**: https://www.zellpin.com/blog/cold-email-open-rates-relevance-rot
- **Zellpin vs Apollo: Which Sales Platform Wins for SMB Growth?**: https://www.zellpin.com/blog/zellpin-vs-apollo-for-smbs
- **Cold Email Graveyard: Why Your Open Rates Are Dying (and How to Revive Them)**: https://www.zellpin.com/blog/cold-email-open-rates-dying
- **Email Warmup: The Secret Weapon Your Cold Outreach Needs**: https://www.zellpin.com/blog/email-warmup-secret-weapon-cold-outreach
- **Scale Sales: Automate Your Way to Growth, No SDRs Needed**: https://www.zellpin.com/blog/scale-sales-automate-growth-no-sdrs
- **B2B Outreach: Conversion Rates Ranked (And How to CRUSH Them)**: https://www.zellpin.com/blog/b2b-outreach-channels-ranked-conversion-rates
- **Stop Sending Cold Emails to the Void: Deliverability Secrets**: https://www.zellpin.com/blog/email-deliverability-guide-cold-outreach
- **Find Decision Makers' Emails Automatically: A Founder's Guide**: https://www.zellpin.com/blog/find-decision-makers-emails-automatically
- **Define Your Ideal Customer Profile (ICP) for B2B Success**: https://www.zellpin.com/blog/define-ideal-customer-profile-icp-b2b
- **AI Sales Email Mastery: How AI Reads & Replies**: https://www.zellpin.com/blog/how-ai-reads-and-replies-to-sales-emails
- **Lead Qualification: Stop Wasting Time on Dead-End Leads**: https://www.zellpin.com/blog/lead-qualification-why-it-matters
- **The Best Way to Use AI in Sales (Without Ruining Your Pipeline)**: https://www.zellpin.com/blog/best-way-to-use-ai-in-sales-without-ruining-pipeline
- **3 Reasons Why Enterprise Sales Requires Human SDRs**: https://www.zellpin.com/blog/3-reasons-enterprise-sales-requires-human-sdrs
- **Stop Guessing: Write Cold Emails That Convert in 2024**: https://www.zellpin.com/blog/cold-email-conversion-secrets
- **Cold Email Automation: The Complete Guide for 2026**: https://www.zellpin.com/blog/cold-email-automation-complete-guide-2026
- **How to Generate B2B Leads Without a Sales Team**: https://www.zellpin.com/blog/how-to-generate-b2b-leads-without-sales-team
- **How to Get Sales Meetings Without a Sales Team in 2026**: https://www.zellpin.com/blog/get-meetings-without-team
- **Zellpin vs Hiring an SDR: Full Cost Breakdown**: https://www.zellpin.com/blog/zellpin-vs-hiring-sdr
- **5 Reasons Why Traditional Cold Calling is Dead in 2026**: https://www.zellpin.com/blog/5-reasons-cold-calling-is-dead
- **Crafting High-Converting Cold Emails with AI**: https://www.zellpin.com/blog/crafting-high-converting-cold-emails-with-ai
- **Case Study: How a SaaS Founder Generated 20 Qualified Leads in 30 Days**: https://www.zellpin.com/blog/saas-founder-case-study-20-leads-30-days
- **Zellpin vs Apollo: Which is Better for SMBs?**: https://www.zellpin.com/blog/zellpin-vs-apollo-smb-comparison
- **Best AI Sales Platforms: How to Choose by Use Case**: https://www.zellpin.com/blog/best-ai-sales-platforms-choose-by-use-case
- **What Is Pay-Per-Lead B2B Lead Generation? Costs, Pros, and When It Beats Subscriptions**: https://www.zellpin.com/blog/what-is-pay-per-lead-b2b-lead-generation
- **B2B Appointment Setting Cost in 2026: Per Meeting, Per Lead, and Per SDR**: https://www.zellpin.com/blog/b2b-appointment-setting-cost-2026
- **AI-Human Hybrid SDR: What It Is and How It Works (Research + Human Calls)**: https://www.zellpin.com/blog/ai-human-hybrid-sdr-how-it-works
- **Q4 2026 B2B Outbound Playbook: 30 Days to Fill Pipeline Before Year-End**: https://www.zellpin.com/blog/q4-2026-b2b-outbound-playbook