Connects Claude to Apollo.io's sales intelligence platform with 45 tools covering prospecting, enrichment, and CRM operations. Search 270M+ contacts by title, company, tech stack, or funding stage for free, then enrich with verified emails and phone numbers for 1 credit each. Manage contacts, accounts, deals, tasks, and notes through your CRM. Add people to email sequences, track opens and clicks, and search activity logs. List pipeline stages, create custom fields, and check API usage. Credit costs are surfaced in every tool description so you won't burn through your balance unexpectedly. Useful when you need to prospect and run outreach workflows without leaving your editor.