Apollo IO MCP Server + MCPHub (mcp.nvim): Complete MCP Integration
Apollo IO MCP Server is a MCP server that apollo.io mcp server. Get/enrich contact data for people and organizations agentically..
When integrated with MCPHub (mcp.nvim), you can:
- Enrich contact data for individuals with comprehensive profile information
- Enrich company data with detailed organizational information
- Advanced people search with extensive filtering options
This guide provides step-by-step instructions to set up Apollo IO MCP Server in MCPHub (mcp.nvim), including configuration, examples, and troubleshooting.
What You'll Achieve
After completing this setup:
- Apollo IO MCP Server will be fully integrated and operational
- You can use Apollo IO MCP Server tools directly in MCPHub (mcp.nvim)
- All Apollo IO MCP Server capabilities will be available for your workflows
- Access to 7 different tools
Prerequisites
Before starting, ensure you have:
- Node.js
- npm
- Apollo.io API key
- Apollo.io API key for accessing enrichment services
- MCPHub (mcp.nvim) installed and configured
- Compatible operating system (Neovim 0.9+, Windows, macOS, Linux)
Installation
Step 1: Install Apollo IO MCP Server
Install using npm:
npm install @agentx-ai/apollo-io-mcp-server
Verify installation:
npm list @agentx-ai/apollo-io-mcp-server
Configuration
Step 2: Configure MCPHub (mcp.nvim)
- Open MCPHub (mcp.nvim) settings
- Navigate to MCP server configuration
- Add Apollo IO MCP Server server with appropriate settings
- Save and restart if needed
Examples
Once configured, you can use Apollo IO MCP Server in MCPHub (mcp.nvim):
Enrich Contact Information
Enrich a person's profile using their email address
Ask MCPHub (mcp.nvim): "Enrich the contact information for [email protected] and get their professional background"
Expected Result: Complete profile with job title, company details, social profiles, and professional background
Find Marketing Decision Makers
Search for marketing managers at technology companies
Ask MCPHub (mcp.nvim): "Find Marketing Managers at technology companies in San Francisco with 100-500 employees"
Expected Result: List of marketing professionals with contact details, company information, and role descriptions
Company Intelligence Gathering
Get comprehensive information about a target company
Ask MCPHub (mcp.nvim): "Get detailed information about Salesforce including employee count, recent hires, and current job openings"
Expected Result: Company profile with metrics, employee data, hiring trends, and job postings
Competitive Analysis
Analyze competitors and find key contacts
Ask MCPHub (mcp.nvim): "Find all companies in the CRM software space and identify their VP of Sales contacts"
Expected Result: Competitive landscape with company profiles and key decision maker contact information
Testing Your Setup
- Launch MCPHub (mcp.nvim)
- Verify Apollo IO MCP Server is available in the tools list
- Test basic Apollo IO MCP Server functionality
Troubleshooting
Common Issues
Apollo.io API Key Invalid
Symptoms: 401 Authentication errors, API key not recognized, Access denied messages
Cause: Invalid, expired, or missing Apollo.io API key
Solution:
- Generate new API key from Apollo.io settings
- Verify APOLLO_IO_API_KEY environment variable is set
- Check API key has appropriate permissions
- Ensure no extra spaces or characters in key
Rate Limiting Errors
Symptoms: 429 Too Many Requests, API quota exceeded, Rate limit messages
Cause: Exceeded Apollo.io API rate limits
Solution:
- Check your Apollo.io plan limits and usage
- Implement delays between requests
- Upgrade Apollo.io plan for higher limits
- Optimize queries to use fewer API calls
Claude Desktop Not Detecting Server
Symptoms: No tools showing up, MCP server not connected, Configuration ignored
Cause: Incorrect claude_desktop_config.json setup
Solution:
- Verify JSON syntax in configuration file
- Check file is in correct location for your OS
- Restart Claude Desktop after configuration changes
- Test server with MCP inspector first
Search Results Empty or Limited
Symptoms: No search results, Limited contact data, Enrichment fails
Cause: Search criteria too restrictive or data not available
Solution:
- Broaden search criteria and filters
- Try different search parameters
- Check if company/person exists in Apollo database
- Verify search syntax and parameter format
NPM Installation Errors
Symptoms: Package not found, Installation failures, Dependency errors
Cause: NPM registry issues or network connectivity
Solution:
- Clear NPM cache: npm cache clean --force
- Try alternative registry: npm install --registry https://registry.npmjs.org/
- Check internet connectivity and proxy settings
- Update NPM: npm install -g npm@latest
Plugin Not Loading or Command Not Found
Symptoms: :MCPHub command not recognized, Plugin not appearing in :PlugStatus, No errors but plugin inactive
Cause: Plugin not properly installed or configuration error
Solution:
- Verify plugin is added to plugin manager configuration
- Run plugin manager install command (:PackerInstall, :PlugInstall, or Lazy auto-install)
- Check for errors in :messages after sourcing config
- Ensure dependencies (plenary.nvim, nui.nvim) are installed
- Restart Neovim completely
MCP Server Won't Start
Symptoms: Server status shows "Error", Red indicator on server, Server immediately stops after starting
Cause: Invalid server configuration or missing dependencies
Solution:
- Verify npx is installed and in PATH: npx --version
- Check MCP server package exists: npx -y @modelcontextprotocol/server-filesystem --help
- Review server configuration in setup() - verify command and args
- Check server logs in MCPHub interface for detailed error messages
- Ensure required environment variables are set (e.g., GITHUB_TOKEN)
- Test server manually in terminal: npx -y @modelcontextprotocol/server-filesystem /path
UI Not Displaying Correctly
Symptoms: Blank window, Garbled text, Layout issues, Missing borders
Cause: Terminal or Neovim rendering issues
Solution:
- Verify Neovim version is 0.9 or higher: nvim --version
- Try different border style in ui.border config ("single", "double", "rounded")
- Check terminal supports Unicode and 256 colors
- Update nui.nvim dependency to latest version
- Test with different colorscheme to rule out theme conflicts
Integration with Avante/CodeCompanion Not Working
Symptoms: AI assistant not seeing MCP tools, Tool calls failing, Integration not recognized
Cause: Integration not enabled or incompatible versions
Solution:
- Verify integration is enabled in config: integrations.avante = true
- Ensure Avante.nvim/CodeCompanion.nvim is installed and loaded
- Check versions are compatible - update both plugins to latest
- Restart Neovim after enabling integration
- Check :checkhealth for integration-specific warnings
Marketplace Not Loading
Symptoms: :MCPHubMarketplace shows empty list, Network error in marketplace, Timeout loading servers
Cause: Network connectivity issues or marketplace service unavailable
Solution:
- Verify internet connectivity
- Check firewall allows HTTPS connections
- Try again later if marketplace service is temporarily down
- Review proxy settings if behind corporate firewall
- Check :messages for detailed network error messages
Project-Local Config Not Loading
Symptoms: .mcphub.json ignored, Project servers not appearing, Only global config loaded
Cause: Config file location or format issues
Solution:
- Verify .mcphub.json is in project root (same directory as .git)
- Check JSON syntax is valid using jsonlint or similar tool
- Ensure file name is exactly .mcphub.json (case-sensitive)
- Restart Neovim after creating/modifying project config
- Check file permissions are readable
Apollo IO MCP Server not appearing in MCPHub (mcp.nvim)
Symptoms: Server not listed, Tools not available
Cause: Configuration or installation issue
Solution:
- Verify configuration syntax
- Check Apollo IO MCP Server installation
- Restart MCPHub (mcp.nvim)
- Check logs for error messages
Next Steps
Now that Apollo IO MCP Server is integrated with MCPHub (mcp.nvim):
- Explore all Apollo IO MCP Server capabilities through MCPHub (mcp.nvim)
- Check out other MCP servers that work with MCPHub (mcp.nvim)
- Join the MCP community for tips and support
- Consider contributing to Apollo IO MCP Server development
Need Help?
- Search for Apollo IO MCP Server documentation
- Check the MCPHub (mcp.nvim) MCP guide
- Join the MCP community discussions