Apollo.io MCP Server

A Model Context Protocol (MCP) server for the Apollo.io API -- giving AI coding assistants like Claude Code, Cursor, and any MCP-compatible client direct access to Apollo.io's sales intelligence platform.

Search leads, enrich contacts with verified emails and phone numbers, manage CRM records, run email sequences, track outreach, manage deals, tasks, notes, labels, and more -- all through natural language via 45 ready-to-use tools.

Why Use This?

• AI-native prospecting -- Ask your AI assistant to "find CTOs at Series B fintech companies in NYC" and get results instantly
• Automated enrichment -- Enrich leads with verified emails and phone numbers without leaving your editor
• CRM operations -- Create, update, search, and delete contacts, accounts, deals, tasks, and notes through conversation
• Sequence management -- Add contacts to email sequences and monitor outreach performance
• Full pipeline visibility -- Access contact stages, account stages, opportunity stages, labels, and team members
• Credit-aware -- Every tool description includes credit cost so your AI avoids unexpected charges

Quick Start

1. Clone & Build

git clone https://github.com/Chainscore/apollo-io-mcp.git
cd apollo-io-mcp
npm install
npm run build

2. Get Your Apollo API Key

Get your API key from Apollo.io Settings > Integrations > API.

3. Add to Your MCP Client

Claude Code (~/.claude/settings.json):

{
  "mcpServers": {
    "apollo-io": {
      "command": "node",
      "args": ["/path/to/apollo-io-mcp/dist/index.js"],
      "env": {
        "APOLLO_API_KEY": "your_key_here"
      }
    }
  }
}

Cursor (.cursor/mcp.json):

{
  "mcpServers": {
    "apollo-io": {
      "command": "node",
      "args": ["/path/to/apollo-io-mcp/dist/index.js"],
      "env": {
        "APOLLO_API_KEY": "your_key_here"
      }
    }
  }
}

Tools (45)

People Search & Enrichment

Company / Organization Data

CRM -- Contacts

CRM -- Accounts

CRM -- Opportunities/Deals

CRM -- Tasks

CRM -- Notes

Email Sequences & Outreach

Labels & Tags

Pipeline Stages

Team & Users

Activity Tracking

Custom Fields & Metadata

News, Usage & Health

Usage Tips

• Verify your setup -- Start with health_check or get_api_usage_stats (both FREE) to confirm your API key works
• Save credits -- Use search_people (FREE) for prospecting before enriching with enrich_person (1 credit)
• Prefer people search -- search_people is free while search_organizations costs 1 credit/page
• Auto-cleaned domains -- Pass https://www.google.com, www.google.com, or @google.com -- all resolve to google.com
• Built-in deduplication -- Contact creation enforces dedup so you never accidentally create duplicates
• Pipeline workflow -- Use list_contact_stages / list_opportunity_stages to get stage IDs, then filter contacts and deals by stage
• Task management -- Create tasks with create_task, assign to team members found via search_users
• Label organization -- Create labels with create_label, then apply them when creating/updating contacts

Requirements

• Node.js 18+
• Apollo.io API key (get one here)
• An MCP-compatible client (Claude Code, Cursor, etc.)

License

MIT

Contact

Need help integrating MCP servers into your workflow? Reach out at prasad@inferensys.com. We help companies build agentic workflows seemlessly that saves time and operational cost.

Built by Inferensys. Contact Us: https://inferensys.com/contact