Apollo.io MCP Server
Enables AI assistants to interact with Apollo.io API for sales and marketing activities. Provides tools to search for companies and contacts, enrich person and organization data, and manage accounts with comprehensive lead generation capabilities.
What is Apollo.io MCP Server?
Apollo.io MCP Server is a Model Context Protocol (MCP) server that allows AI assistants like Claude, Cursor, and VS Code to enables ai assistants to interact with apollo.io api for sales and marketing activities. provides tools to search for companies and contacts, enrich person and organization data, and manage accounts w...
Enables AI assistants to interact with Apollo.io API for sales and marketing activities. Provides tools to search for companies and contacts, enrich person and organization data, and manage accounts with comprehensive lead generation capabilities.
This server falls under the Business Applications and Marketing & SEO categories on MCPgee, the world's largest MCP server directory with 33,000+ servers.
Features
- Enables AI assistants to interact with Apollo.io API for sal
Use Cases
Maintainer
Works with
Installation
Manual Installation
npx apollo-io-mcp-serverConfiguration
Configuration Details
claude_desktop_config.json
Performance
Response Metrics
Resource Usage
How to Set Up and Use Apollo.io MCP Server
The Apollo.io MCP Server connects AI assistants to the Apollo.io sales intelligence platform, enabling natural language access to one of the largest B2B contact and company databases. It exposes five tools for people enrichment, organization enrichment, people search, organization search, and job posting retrieval — letting sales and marketing teams run lead generation workflows directly from their AI client without switching tabs. Ideal for SDRs and RevOps teams who want to enrich CRM records, build prospect lists, or research accounts through conversational prompts.
Prerequisites
- Node.js 18 or higher installed
- An Apollo.io account with API access (free or paid plan)
- Apollo.io API key from Account Settings > Integrations > API
- An MCP-compatible client such as Claude Desktop or Cursor
Clone the repository
Clone the apollo-io-mcp-server repository from GitHub and navigate into the project directory.
git clone https://github.com/lkm1developer/apollo-io-mcp-server.git
cd apollo-io-mcp-serverInstall dependencies and build
Install Node.js dependencies and compile the TypeScript source to the dist/ directory.
npm install
npm run buildObtain your Apollo.io API key
Log in to Apollo.io, navigate to Account Settings > Integrations > API Keys, and copy your API key. This key authenticates all requests to the Apollo.io v1 API.
Set the required environment variable
Export your Apollo.io API key as an environment variable before starting the server, or add it to a .env file in the project root.
export APOLLO_IO_API_KEY=your_api_key_hereConfigure your MCP client
Add the server to your MCP client configuration file (e.g., claude_desktop_config.json). The server runs via stdio transport using Node.js.
{
"mcpServers": {
"apollo-io": {
"command": "node",
"args": ["/absolute/path/to/apollo-io-mcp-server/dist/index.js"],
"env": {
"APOLLO_IO_API_KEY": "your_api_key_here"
}
}
}
}Restart your MCP client and verify
Restart Claude Desktop or your chosen MCP client. The apollo-io server should appear in the connected servers list, exposing five tools: people_enrichment, organization_enrichment, people_search, organization_search, and organization_job_postings.
Apollo.io MCP Server Examples
Client configuration
Example claude_desktop_config.json entry for the Apollo.io MCP server using the built dist file.
{
"mcpServers": {
"apollo-io": {
"command": "node",
"args": ["/Users/you/apollo-io-mcp-server/dist/index.js"],
"env": {
"APOLLO_IO_API_KEY": "your_apollo_api_key"
}
}
}
}Prompts to try
Example prompts to use once the server is connected in your AI client.
- "Find VP-level marketing contacts at companies in the fintech space"
- "Enrich the person John Smith who works at apollo.io — give me their email and title"
- "Search for SaaS companies headquartered in Austin, Texas"
- "What job postings does Stripe currently have open?"
- "Enrich the organization with domain stripe.com"Troubleshooting Apollo.io MCP Server
API requests fail with 401 Unauthorized
Verify APOLLO_IO_API_KEY is correctly set and matches the key shown in your Apollo.io account under Settings > API Keys. The key must have at least the basic search scope enabled.
Server fails to start after npm run build
Ensure Node.js 18+ is installed (run `node --version`). If the build produces TypeScript errors, delete node_modules and run `npm install` again before rebuilding.
Tools not appearing in Claude Desktop
Check that the absolute path in claude_desktop_config.json points to the compiled dist/index.js file, not the TypeScript source. Restart Claude Desktop fully after editing the config.
Frequently Asked Questions about Apollo.io MCP Server
What is Apollo.io MCP Server?
Apollo.io MCP Server is a Model Context Protocol (MCP) server that enables ai assistants to interact with apollo.io api for sales and marketing activities. provides tools to search for companies and contacts, enrich person and organization data, and manage accounts with comprehensive lead generation capabilities. It connects AI assistants to external tools and data sources through a standardized interface.
How do I install Apollo.io MCP Server?
Follow the installation instructions on the Apollo.io MCP Server GitHub repository. Clone the repo, install dependencies, and add the server config to your AI client.
Which AI clients work with Apollo.io MCP Server?
Apollo.io MCP Server works with all major MCP-compatible AI clients including Claude Desktop, Claude Code, Cursor, VS Code (GitHub Copilot), Windsurf, and Cline.
Is Apollo.io MCP Server free to use?
Yes, Apollo.io MCP Server is open source and available under the MIT License license. You can use it freely in both personal and commercial projects.
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