Bytemine is a B2B data platform and API for sales, marketing, RevOps, and AI teams that need real-time contact, company, and consumer data without heavyweight contracts. It provides searchable access to more than 130 million B2B contacts, tens of millions of mobile numbers, and over 150 million consumer records. Teams use it to build prospect lists, enrich CRMs, and feed AI agents like Claude or custom workflows with verified emails and phone numbers.
Key Features:
AI Search & ICP Builder: AI-driven prospect finder lets teams define ICPs, search across the dataset, and filter by title, company, tech stack, seniority, and location with no code.
LinkedIn Agent Chrome Extension: LinkedIn Agent scores warm leads, generates AI-assisted replies, and enriches profiles with verified emails and mobile numbers directly in the browser.
Contact, Company, and Consumer APIs: RESTful APIs return 50 plus attributes per contact with sub-200 millisecond response times so developers can enrich CRMs, products, and internal tools in real time.
Bulk CSV Enrichment & Email Validation: Upload CSVs to append mobiles, work and personal emails, and firmographic data at scale while validating email deliverability.
Model Context Protocol (MCP) Server: An MCP server exposes more than 20 tools, such as people_search and company_enrich, directly to Claude Desktop, Cursor, and other AI assistants.
Pay-Per-Success Pricing & Unlimited Seats: Credits are only charged on successful matches and every plan includes unlimited user seats and exports.
Pros
AI-native delivery: Native MCP server, Claude and OpenAI integrations, and prompt enrichment patterns fit modern LLM and agent workflows.
Generous free tier: Starter plan grants 500 credits per month for 12 months with the same feature set as Pro, which is strong for trials and small teams.
Low effective cost per record: Published pricing comes out to roughly $0.03 per fully enriched contact while still including unlimited seats and exports.
Fast responses: Sub-200 millisecond enrichment endpoints support interactive tools and in-product personalization.
Cons
Limited independent validation: There are few public third-party reviews or accuracy benchmarks, so teams must run their own quality tests.
Sparse enterprise security signals: Beyond a privacy policy, the site does not foreground compliance badges such as SOC 2, which may slow approval with strict security teams.
Region coverage clarity: Marketing copy emphasizes large US mobile and email volumes, while coverage in other regions is less clearly documented.
Who is Using Bytemine?
Sales development leaders: Build targeted prospect lists, unlock mobiles and emails, and push prioritized leads to SDRs and AEs.
RevOps and sales operations teams: Enrich CRM records, standardize firmographic fields, and power routing rules through APIs and CSV enrichment.
Growth and demand-generation marketers: Use ICP builder and email validation to create clean outbound lists and upload enriched audiences into campaigns.
Recruiters and talent sourcers: Search by title, company, and location to find candidates and enrich profiles with direct contact details.
Product and AI engineers: Wire REST and MCP APIs into apps and agents that need live contact search and enrichment.
Uncommon Use Cases: Investors mapping markets with company lookalike searches; boutique agencies building white-label AI prospecting assistants on top of Bytemine APIs.
Pricing:
Starter: $0 per month. Includes 500 credits per month for 12 months (1 credit = 1 contact with 50+ data points), full B2B & company API access, AI search & ICP builder, bulk CSV enrichment & contact lookup, 80M+ mobile numbers, 79M+ work emails, real-time search & enrichment endpoints, CRM with lists & accounts, unlimited exports and seats, and sub-200ms response times.
Pro:$250 per month. Includes 15,000 credits per month (limited-time 2× credits; normally 7,500), plus all Starter features including full API access, AI search & ICP builder, bulk CSV enrichment, CRM, unlimited exports and seats, and sub-200ms response times.
Enterprise:Custom pricing. Includes unlimited credits, all Pro features, plus a dedicated account manager, custom API integrations and webhooks, SSO and advanced security, and priority support.
Disclaimer: Please note that pricing information may not be up to date. For the most accurate and current pricing details, refer to the official Bytemine website.
What Makes Bytemine Unique?
Bytemine combines low per-record pricing and unlimited seats with an AI-native delivery stack that includes an MCP server for Claude and Cursor plus developer-friendly REST APIs and code examples. Instead of centering on per-seat contracts, it positions itself as an API-first contact layer that plugs into CRMs, GTM automation, and LLM agents. That emphasis on programmatic access and AI workflows is less common among traditional contact data providers.
How We Rated It:
Accuracy and Reliability: 3.8/5
Ease of Use: 4.5/5
Functionality and Features: 4.2/5
Performance and Speed: 4.7/5
Customization and Flexibility: 4.3/5
Data Privacy and Security: 3.6/5
Support and Resources: 3.9/5
Cost-Efficiency: 4.9/5
Integration Capabilities: 4.4/5
Overall Score: 4.3/5
Bytemine As A Data-First Backbone For AI GTM Teams:
Bytemine gives sales, marketing, and product teams a programmable contact data layer built for AI-era workflows rather than legacy seat-based contracts. It is best suited to groups that value APIs, MCP tools, and low per-record costs more than having a full engagement suite in one product. Teams that require audited security certifications or independent accuracy studies will need to do extra diligence, but builders and revenue teams comfortable testing data will find it a strong engine for modern GTM.
