ActionKit by Paragon + OpenCode: 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 OpenCode, 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 OpenCode, 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 OpenCode
• 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
• OpenCode installed and configured
• Compatible operating system (macOS, Linux, Windows)

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 OpenCode

1. Locate your configuration file:

2. Add server configuration:

Configure MCP servers in your `opencode.json` or `opencode.jsonc`:

```json
{
  "mcp": {
    "my-mcp": {
      "type": "local",
      "command": ["npx", "-y", "@modelcontextprotocol/server-everything"],
      "environment": {
        "API_KEY": "$API_KEY"
      },
      "timeout": 5000
    },
    "remote-server": {
      "type": "remote",
      "url": "https://mcp.example.com/sse",
      "headers": {
        "Authorization": "Bearer $API_TOKEN"
      }
    }
  }
}

Disable a server temporarily:

{
  "mcp": {
    "my-mcp": {
      "type": "local",
      "command": ["npx", "-y", "mcp-server"],
      "enabled": false
    }
  }
}

3. **Restart OpenCode**

Completely quit and restart OpenCode to load the new configuration.



## Examples

Once configured, you can use ActionKit by Paragon in OpenCode:

### Schedule Team Meeting

Create a Google Calendar event and notify team via Slack

**Ask OpenCode:** "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 OpenCode:** "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 OpenCode:** "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 OpenCode:** "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 opencode in terminal
2. Add "use the mcp_name tool" to your prompts
3. Verify tool execution and response



## 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

#### MCP Server Not Loading

**Symptoms:** Server not appearing in tools, Timeout errors, Command not found

**Cause:** Invalid configuration, missing dependencies, or timeout too short

**Solution:**
- Verify command array is correct in opencode.json
- Check environment variables are set properly
- Increase timeout value if server takes longer to start
- Test MCP server command independently in terminal

#### Context Limit Exceeded

**Symptoms:** Context too large errors, Slow responses, Truncated output

**Cause:** Too many MCP servers adding to context

**Solution:**
- Disable unused MCP servers with enabled: false
- Use per-agent tool configuration to limit active MCPs
- Avoid MCP servers that add many tokens (e.g., GitHub MCP)

#### Remote Server Connection Failed

**Symptoms:** Cannot connect to remote MCP, Authentication errors

**Cause:** Invalid URL, missing headers, or network issues

**Solution:**
- Verify remote server URL is correct
- Check authorization headers are properly configured
- Ensure environment variables for tokens are set

#### ActionKit by Paragon not appearing in OpenCode

**Symptoms:** Server not listed, Tools not available

**Cause:** Configuration or installation issue

**Solution:**
- Verify configuration syntax
- Check ActionKit by Paragon installation
- Restart OpenCode
- Check logs for error messages



## Next Steps

Now that ActionKit by Paragon is integrated with OpenCode:

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

## Need Help?

- Search for [ActionKit by Paragon documentation](https://www.mcpstack.org)
- Check the [OpenCode MCP guide](https://www.mcpstack.org/clients)
- Join the MCP community discussions