Apollo.io MCP Server
The Apollo.io MCP Server enables AI assistants to seamlessly interact with Apollo.io data through various tools:
Enrich Data: Get detailed information for individuals (using name, email, domain, or LinkedIn URL) and organizations (using name or domain)
Search Capabilities: Find people based on job titles, seniority levels, or domains; locate organizations by locations or domains
Find Job Postings: Discover job listings for specific organizations using their Apollo.io ID
Email Retrieval: Get a person's email address using their Apollo.io ID
Company Employee Search: Find employees of a company using its name, website URL, or LinkedIn URL
All these functions can be performed through natural language commands via the AI assistant.
Enables configuration of the Apollo.io MCP server using environment variables stored in a .env file for development purposes.
Supports cloning the repository from GitHub as part of the installation process for the Apollo.io MCP server.
Hosts the Apollo.io MCP server repository and the MCP SDK dependency, providing version control and access to the codebase.
Uses npm packages including mcp-proxy-auth for authentication and enables installation and running of the Apollo.io MCP server through npm commands.
Provides badge images in the README to display information about TypeScript version, Apollo.io API version, MCP SDK version, and license.
Provides a TypeScript-based server implementation for interacting with Apollo.io's API, offering tools for people and organization data enrichment, searching for people and organizations, and accessing job postings.
Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@Apollo.io MCP Server enrich data for John Doe at john.doe@example.com"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Apollo.io MCP Server
A powerful Model Context Protocol (MCP) server implementation for seamless Apollo.io API integration, enabling AI assistants to interact with Apollo.io data.
Overview
This MCP server provides a comprehensive set of tools for interacting with the Apollo.io API, allowing AI assistants to:
Enrich data for people and organizations
Search for people and organizations
Find job postings for specific organizations
Perform Apollo.io operations without leaving your AI assistant interface
Related MCP server: apollo-io-mcp
Why Use This MCP Server?
Seamless AI Integration: Connect your AI assistants directly to Apollo.io data
Simplified API Operations: Perform common Apollo.io tasks through natural language commands
Real-time Data Access: Get up-to-date information from Apollo.io
Secure Authentication: Uses Apollo.io's secure API token authentication
Extensible Design: Easily add more Apollo.io API capabilities as needed
Installation
# Clone the repository
git clone https://github.com/lkm1developer/apollo-io-mcp-server.git
cd apollo-io-mcp-server
# Install dependencies
npm install
# Build the project
npm run buildConfiguration
The server requires an Apollo.io API access token. You can obtain one by:
Going to your Apollo.io Account
Navigating to Settings > API
Generating an API key
You can provide the token in two ways:
As an environment variable:
APOLLO_IO_API_KEY=your-api-keyAs a command-line argument:
npm start -- --api-key=your-api-key
For development, create a .env file in the project root to store your environment variables:
APOLLO_IO_API_KEY=your-api-keyUsage
Starting the Server
# Start the server
npm start
# Or with a specific API key
npm start -- --api-key=your-api-key
# Run the SSE server with authentication
npx mcp-proxy-auth node dist/index.jsImplementing Authentication in SSE Server
The SSE server uses the mcp-proxy-auth package for authentication. To implement authentication:
Install the package:
npm install mcp-proxy-authSet the
AUTH_SERVER_URLenvironment variable to point to your API key verification endpoint:export AUTH_SERVER_URL=https://your-auth-server.com/verifyRun the SSE server with authentication:
npx mcp-proxy-auth node dist/index.jsThe SSE URL will be available at:
localhost:8080/sse?apiKey=apikeyReplace
apikeywith your actual API key for authentication.
The mcp-proxy-auth package acts as a proxy that:
Intercepts requests to your SSE server
Verifies API keys against your authentication server
Only allows authenticated requests to reach your SSE endpoint
Integrating with AI Assistants
This MCP server is designed to work with AI assistants that support the Model Context Protocol. Once running, the server exposes a set of tools that can be used by compatible AI assistants to interact with Apollo.io data.
Available Tools
The server exposes the following powerful Apollo.io integration tools:
people_enrichment
Use the People Enrichment endpoint to enrich data for 1 person
Parameters:
first_name(string, optional): Person's first namelast_name(string, optional): Person's last nameemail(string, optional): Person's email addressdomain(string, optional): Company domainorganization_name(string, optional): Organization name
Example:
{ "first_name": "John", "last_name": "Doe", "email": "john.doe@example.com" }
organization_enrichment
Use the Organization Enrichment endpoint to enrich data for 1 company
Parameters:
domain(string, optional): Company domainname(string, optional): Company name
Example:
{ "domain": "apollo.io" }
people_search
Use the People Search endpoint to find people
Parameters:
q_organization_domains_list(array, optional): List of organization domains to search withinperson_titles(array, optional): List of job titles to search forperson_seniorities(array, optional): List of seniority levels to search for
Example:
{ "person_titles": ["Marketing Manager"], "person_seniorities": ["vp"], "q_organization_domains_list": ["apollo.io"] }
organization_search
Use the Organization Search endpoint to find organizations
Parameters:
q_organization_domains_list(array, optional): List of organization domains to search fororganization_locations(array, optional): List of organization locations to search for
Example:
{ "organization_locations": ["Japan", "Ireland"] }
organization_job_postings
Use the Organization Job Postings endpoint to find job postings for a specific organization
Parameters:
organization_id(string, required): Apollo.io organization ID
Example:
{ "organization_id": "5e60b6381c85b4008c83" }
Extending the Server
The server is designed to be easily extensible. To add new Apollo.io API capabilities:
Add new methods to the
ApolloClientclass insrc/apollo-client.tsRegister new tools in the
setupToolHandlersmethod insrc/index.tsRebuild the project with
npm run build
License
This project is licensed under the MIT License - see the LICENSE file for details.
Keywords
Apollo.io, Model Context Protocol, MCP, AI Assistant, TypeScript, API Integration, Apollo.io API, People Enrichment, Organization Enrichment, People Search, Organization Search, Job Postings, AI Tools
Available Tools
7 toolsemployees_of_companyC
Find employees of a company using company name or website/LinkedIn URL
Inputs: company (required), website_url, linkedin_url.
get_person_emailC
Get email address for a person using their Apollo ID
Inputs: apollo_id (required).
organization_enrichmentC
Use the Organization Enrichment endpoint to enrich data for 1 company
Inputs: domain, name.
organization_job_postingsC
Use the Organization Job Postings endpoint to find job postings for a specific organization
Inputs: organization_id (required).
organization_searchC
Use the Organization Search endpoint to find organizations
Inputs: q_organization_domains_list, organization_locations.
people_enrichmentC
Use the People Enrichment endpoint to enrich data for 1 person
Inputs: first_name, last_name, email, domain, +2 more.
people_searchD
Use the People Search endpoint to find people
Inputs: q_organization_domains_list, person_titles, person_seniorities.
Tool Schema Changelog
Recent tool additions, removals, and schema changes observed during successful MCP inspections.
Loading tool schema changelog…
TDQS
Scored across 7 tools
Most tools have distinct purposes, but there is some potential overlap between organization_search and organization_enrichment, as both involve company data retrieval. However, their descriptions clarify that search is for finding organizations while enrichment is for augmenting data on a known company, which helps mitigate confusion. The other tools target clearly different resources like employees, emails, job postings, and people.
The naming follows a consistent snake_case pattern throughout, which is good. However, there is a minor inconsistency: most tools use a verb_noun format (e.g., organization_search, people_enrichment), but employees_of_company uses a noun_of_noun structure, deviating slightly from the pattern. This does not severely impact readability but is a noticeable deviation.
With 7 tools, the count is well-scoped for a sales intelligence or recruitment domain, covering key operations like searching and enriching data for both organizations and people. Each tool appears to earn its place without feeling excessive or sparse, aligning well with the server's apparent purpose of data enrichment and lookup.
The tool set provides solid coverage for core workflows in the domain, including search and enrichment for both organizations and people, plus specific functions like finding employees and emails. A minor gap is the lack of update or delete operations, but this is reasonable for a read-heavy enrichment server. The surface supports common agent tasks without obvious dead ends.
Maintenance
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