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io.github.Opafex/mcp-enrichment

Official registry Productivity

Multi-source entity enrichment: company data, contacts, email verification, and phone validation

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @opafex/mcp-enrichment
Claude Code 
claude mcp add mcp-enrichment -e 'CLEARBIT_API_KEY=<your clearbit_api_key>' -e 'HUNTER_API_KEY=<your hunter_api_key>' -e 'APOLLO_API_KEY=<your apollo_api_key>' -e 'TWILIO_ACCOUNT_SID=<your twilio_account_sid>' -e 'TWILIO_AUTH_TOKEN=<your twilio_auth_token>' -e 'ENRICHMENT_CACHE_TTL=<ENRICHMENT_CACHE_TTL>' -- npx -y @opafex/mcp-enrichment@0.1.1
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "mcp-enrichment": {
            "command": "npx",
            "args": [
                "-y",
                "@opafex/mcp-enrichment@0.1.1"
            ],
            "env": {
                "CLEARBIT_API_KEY": "<your clearbit_api_key>",
                "HUNTER_API_KEY": "<your hunter_api_key>",
                "APOLLO_API_KEY": "<your apollo_api_key>",
                "TWILIO_ACCOUNT_SID": "<your twilio_account_sid>",
                "TWILIO_AUTH_TOKEN": "<your twilio_auth_token>",
                "ENRICHMENT_CACHE_TTL": "<ENRICHMENT_CACHE_TTL>"
            }
        }
    }
}

Environment variables

  • CLEARBIT_API_KEY secret Clearbit API key for company and contact enrichment
  • HUNTER_API_KEY secret Hunter.io API key for email discovery and verification
  • APOLLO_API_KEY secret Apollo.io API key for contact and company data
  • TWILIO_ACCOUNT_SID secret Twilio Account SID for phone validation
  • TWILIO_AUTH_TOKEN secret Twilio Auth Token for phone validation
  • ENRICHMENT_CACHE_TTL Cache TTL in seconds for enrichment results (default: 86400)

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Opafex MCPs
  2. Servers
  3. Quick Start
  4. Development
  5. Shared Utilities
  6. License

Opafex MCPs

Open-source Model Context Protocol servers by Opafex. Each server is a standalone npm package usable with Claude Code, Claude Desktop, Cursor, and any MCP-compatible client.

Servers

PackageDescriptionStatus
@opafex/mcp-enrichmentCompany, contact, email & phone enrichment via Clearbit, Hunter.io, TwilioAvailable
@opafex/mcp-file-processorDocument text extraction, keyword detection, chunkingAvailable
@opafex/mcp-web-researchWeb search (Brave API), SSRF-guarded page fetch, research synthesisAvailable
@opafex/mcp-approval-queueHuman-in-the-loop approval gate — the agent asks, only a person approves (elicitation or CLI)Available
@opafex/knowledge-gridLayered context for agents (a library, in its own repo)Available

Quick Start

# Clone and install
git clone https://github.com/opafex/opafex-mcps.git
cd opafex-mcps
npm install
npm run build

# Run the enrichment server (mock mode — no API keys needed)
node packages/enrichment/dist/index.js
Add to Claude Code

Create or edit .mcp.json in your project root:

{
  "mcpServers": {
    "enrichment": {
      "command": "node",
      "args": ["/path/to/opafex-mcps/packages/enrichment/dist/index.js"],
      "env": {
        "CLEARBIT_API_KEY": "sk-...",
        "HUNTER_API_KEY": "...",
        "TWILIO_ACCOUNT_SID": "...",
        "TWILIO_AUTH_TOKEN": "..."
      }
    }
  }
}

All servers work in mock mode when API keys are omitted — great for development and testing.

Development

npm install          # Install all dependencies
npm run build        # Build all packages
npm test             # Run all tests
Adding a New Server
  1. Create packages/<server-name>/ with package.json, tsconfig.json, and src/
  2. Use @opafex/mcp-shared for the server bootstrap (createMCPServer)
  3. Define tools in tools.ts, wire up in index.ts
  4. Add tests in __tests__/

See packages/enrichment as a reference implementation.

Shared Utilities

@opafex/mcp-shared provides:

  • createMCPServer() / buildMCPServer() — Reusable MCP server bootstrap with tool/resource registration and stdio transport
  • ToolContext.elicit — ask the user a question through the client's UI (MCP elicitation), out of the model's reach
  • Validation helpers — Email, domain, phone format validation

License

MIT

Frequently asked questions

What is io.github.Opafex/mcp-enrichment?

Multi-source entity enrichment: company data, contacts, email verification, and phone validation

How do I install io.github.Opafex/mcp-enrichment?

It runs on your machine. In Claude Code: claude mcp add mcp-enrichment -e 'CLEARBIT_API_KEY=<your clearbit_api_key>' -e 'HUNTER_API_KEY=<your hunter_api_key>' -e 'APOLLO_API_KEY=<your apollo_api_key>' -e 'TWILIO_ACCOUNT_SID=<your twilio_account_sid>' -e 'TWILIO_AUTH_TOKEN=<your twilio_auth_token>' -e 'ENRICHMENT_CACHE_TTL=<ENRICHMENT_CACHE_TTL>' -- npx -y @opafex/mcp-enrichment@0.1.1. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.Opafex/mcp-enrichment need an API key?

Yes. It expects CLEARBIT_API_KEY, HUNTER_API_KEY, APOLLO_API_KEY, TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN, which you set in its configuration.

Is io.github.Opafex/mcp-enrichment open source?

Yes. Its code is on GitHub under the MIT license.

Who maintains io.github.Opafex/mcp-enrichment?

It is published by opafex. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.