ActionKit by Paragon + Claude Code: Complete MCP Integration

ActionKit by Paragon is a MCP server that Connect to 130+ SaaS integrations (e.g. Slack, Salesforce, Gmail) with Paragon’s ActionKit API..

When integrated with Claude Code, you can:

• Connect to 130+ SaaS applications via ActionKit API
• Handle OAuth and API authentication for integrations
• Execute custom OpenAPI action definitions

This guide provides step-by-step instructions to set up ActionKit by Paragon in Claude Code, including configuration, examples, and troubleshooting.

What You'll Achieve

After completing this setup:

• ActionKit by Paragon will be fully integrated and operational
• You can use ActionKit by Paragon tools directly in Claude Code
• All ActionKit by Paragon capabilities will be available for your workflows
• Access to 4 different tools

Prerequisites

Before starting, ensure you have:

• Node.js 22.14.0
• npm
• Paragon account
• Paragon project identifier from dashboard
• RS256 JWT signing key for authentication
• Claude Code installed and configured
• Compatible operating system (Windows, macOS, Linux)

Installation

Step 1: Install ActionKit by Paragon

Install using npm:

git clone https://github.com/useparagon/paragon-mcp.git && cd paragon-mcp && npm install

Verify installation:

npm run start

Configuration

Step 2: Configure Claude Code

1. Install Claude Code

Download and install Claude Code from the official website

Visit: https://claude.ai/code

Note: Claude Code is available as a native application, not via npm

2. Navigate to Project

Open terminal in your project directory where you want to use the MCP server

3. Install MCP Server

Install the MCP server you want to use (e.g., via npm, pip, or other package manager)

4. Configure MCP Server

Add MCP server configuration to project CLAUDE.md file or use --mcp-config flag

Note: CLAUDE.md is preferred for project-specific configuration

5. Test Integration

Start Claude Code and verify MCP server is working

claude

Note: Use interactive mode to test MCP server functionality

Configuration Details

Add to your project's CLAUDE.md file:

## MCP Servers

### ActionKit by Paragon
- **Installation**: git
- **Configuration**: "PROJECT_ID": "your-project-id",
        "SIGNING_KEY": "your-private-key-content",
        "SIGNING_KEY_PATH": "./keys/private-key.pem",
        "LIMIT_TO_INTEGRATIONS": "google-calendar,slack,salesforce",
        "PORT": "8080",
        "MCP_SERVER_URL": "https://your-server.com"
- **Description**: Connect to 130+ SaaS integrations (e.g. Slack, Salesforce, Gmail) with Paragon’s ActionKit API.

Claude Code will automatically detect and load MCP servers from your project context.

Examples

Once configured, you can use ActionKit by Paragon in Claude Code:

Schedule Team Meeting

Create a Google Calendar event and notify team via Slack

Ask Claude Code: "Schedule a team standup for tomorrow at 9 AM and send a Slack notification to the dev-team channel"

Expected Result: Calendar event created and Slack message sent with meeting details

Create Sales Lead

Add new lead to Salesforce from customer inquiry

Ask Claude Code: "Create a new lead in Salesforce for John Doe from Acme Corp with email [email protected]"

Expected Result: Lead record created in Salesforce with contact information and follow-up tasks

Email Campaign Follow-up

Send follow-up emails via Gmail for marketing campaign

Ask Claude Code: "Send a follow-up email to all prospects who opened our product demo email last week"

Expected Result: Targeted emails sent to qualified prospects with personalized content

Multi-Platform Data Sync

Sync customer data between HubSpot and Salesforce

Ask Claude Code: "Update all HubSpot contacts that were modified today in our Salesforce CRM"

Expected Result: Contact records synchronized with latest information across both platforms

Testing Your Setup

1. Run claude in your project directory
2. Ask Claude to list available tools and verify ActionKit by Paragon tools are present
3. Test ActionKit by Paragon functionality by asking Claude to use specific tools

Test commands:

claude

claude --debug

Troubleshooting

Common Issues

JWT Authentication Failed

Symptoms: 401 Unauthorized errors, Invalid token messages

Cause: Incorrect SIGNING_KEY or expired credentials

Solution:

• Verify SIGNING_KEY matches private key from Paragon dashboard
• Ensure key is in correct RS256 format
• Check PROJECT_ID is correct for your account
• Regenerate keys if necessary

Integration Not Available

Symptoms: Service not found errors, Integration disabled messages

Cause: Integration not enabled in Paragon project or LIMIT_TO_INTEGRATIONS restriction

Solution:

• Enable required integrations in Paragon dashboard
• Remove or update LIMIT_TO_INTEGRATIONS environment variable
• Verify integration is available in your Paragon plan
• Check integration-specific requirements

User Authorization Required

Symptoms: OAuth flow errors, Permission denied messages

Cause: User has not authorized the integration or scope issues

Solution:

• Guide user through OAuth authorization flow
• Check required scopes for the integration
• Verify callback URLs are configured correctly
• Re-authorize if tokens are expired

Server Connection Timeout

Symptoms: Connection timeouts, SSE endpoint not responding

Cause: Server not running or network connectivity issues

Solution:

• Start server with npm run start
• Verify PORT is not in use by another service
• Check firewall settings allow connections
• Test endpoint with curl: curl http://localhost:3001/health

Server Not Found

Symptoms: Command not found errors, Server tools unavailable

Cause: Server not installed or not in PATH

Solution:

• Verify server installation
• Check PATH environment variable
• Install server globally or in project

Configuration Not Loaded

Symptoms: CLAUDE.md changes not recognized, Old server config used

Cause: CLAUDE.md file not in correct location or format

Solution:

• Ensure CLAUDE.md is in project root
• Verify markdown syntax is correct
• Restart Claude Code session

ActionKit by Paragon not appearing in Claude Code

Symptoms: Server not listed, Tools not available

Cause: Configuration or installation issue

Solution:

• Verify configuration syntax
• Check ActionKit by Paragon installation
• Restart Claude Code
• Check logs for error messages

Next Steps

Now that ActionKit by Paragon is integrated with Claude Code:

• Explore all ActionKit by Paragon capabilities through Claude Code
• Check out other MCP servers that work with Claude Code
• Join the MCP community for tips and support
• Consider contributing to ActionKit by Paragon development

Need Help?

• Search for ActionKit by Paragon documentation
• Check the Claude Code MCP guide
• Join the MCP community discussions