This is a self-hosted Cloudflare Worker that pipes Apollo.io's B2B database into your MCP client. You get six tools: search people by title and seniority, enrich contacts by email or LinkedIn URL, search companies by keywords and funding stage, pull job postings as buying signals, and retrieve verified emails. Your Apollo API key travels with each request as a bearer token and never gets stored. The free Cloudflare tier handles 100k requests per day, which covers most solo and small team use cases. Useful when you're building outbound workflows or research agents that need structured access to Apollo's 275 million contact records without copying data into a separate system.