Bytemine is a B2B data platform and API that provides 135M+ contacts, 80M+ verified mobile numbers, and 10M+ company profiles for sales, marketing, and GTM teams, with a freemium plan offering 500 free credits per month for a year and unlimited seats on every paid tier.
What is Bytemine?
Bytemine is a real-time B2B data platform and RESTful API that takes a contact email, company name, or CSV list as input and returns 50+ verified data attributes per record — including mobile numbers, work and personal emails, job titles, company firmographics, and intent signals. It runs on a self-managed 135M+ contact database updated daily, is bootstrapped and profitable, and offers both a no-code Platform Suite and a Developer Suite with sub-200ms API response times.
Key Features
- Platform Suite (no-code) — Explore Platform Suite includes a LinkedIn Agent that scores warm leads, an AI Prospect Finder and ICP Builder, Company Finder with 10M+ profiles, Contact Lookup for instant data, CSV Enrichment, List Building & CRM, and built-in Email Validation.
- Developer Suite (APIs) — Developer Hub provides RESTful APIs for B2B Contact & Company data, Consumer Data (155M+ US consumers), Web Crawler & Enrichment (12 endpoints), Signals API for real-time intent (funding rounds, acquisitions, LinkedIn posts), and an MCP Server for direct integration with Claude, GPT, and AI agents.
- AI Workflows — Explore AI Integrations feed enriched data directly into Claude, OpenAI, Anthropic, and any AI pipeline. Includes MCP Server for Cursor and ready-to-copy code examples.
- Pay-per-success pricing — Only charged for hits; failed lookups are free. One credit unlocks one full contact record (50+ data points). Credits start at $0.03 per record.
- Unlimited seats on every plan — No per-user fees. Invite your entire team without extra cost.
- Real-time sync — Integrates with Apollo, ZoomInfo, Clay, OpenAI, Anthropic, Claude, Instantly, and more via plug-and-play connections.
Who is it for?
- Sales and RevOps teams — Enrich leads with verified mobile numbers and work emails, then sync directly to CRM or outreach tools. Build prospect lists using AI-powered search and ICP filters.
- Marketing and GTM teams — Run ABM campaigns with company firmographics, intent signals, and lookalike audiences. Use CSV enrichment to append 50+ data points to any list.
- AI developers and builders — Power AI agents, chatbots, and automation pipelines with live B2B data via REST API or MCP Server. Feed Claude, OpenAI, or custom models with real-time contact and company attributes.
What can you do with Bytemine?
- Find and score warm LinkedIn leads — The LinkedIn Agent auto-scores your network, generates AI replies, and enriches contacts with verified emails and mobiles without leaving the browser.
- Enrich CRM records at scale — Bulk upload CSVs or call the API to append mobile numbers, personal emails, job changes, and company profiles to existing contacts. 500 free credits/month for a year on the Starter plan.
- Build custom AI workflows — Pipe enriched data into Claude or OpenAI prompts for personalized outreach, meeting prep, or proposal generation. Use the B2B Data API and Email Enrichment APIs for integration.
How does Bytemine work?
The platform follows four steps: (1) Search 135M+ contacts or call the API with natural language or filters; (2) Filter by title, industry, revenue, tech stack, or seniority to build a precise audience; (3) Unlock and enrich records — mobiles, emails, 50+ attributes — via bulk CSV or API; (4) Export to CRM, feed AI agents, or download CSVs. Code examples in the Developer Hub accelerate integration.
