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Using your own MCP server

Once you've built your own MCP server, the interesting part comes: how to use it effectively in your AI-driven applications? In this blog post, we'll explore how to connect, test, and deploy your server so AI agents can truly collaborate with your tools and data.

Claude desktop

Open your Claude Desktop App configuration at ~/Library/Application Support/Claude/claude_desktop_config.json in a text editor.

NOTE

~/Library/Application Support/Claude/claude_desktop_config.json likely will not exist on your machine. You need to create it.

NOTE

~/Library/Application Support/Claude/config.json is a different, unrelated file. Do not edit it.

Add this configuration:

Github copilot

If you expose your MCP server as a Copilot plugin, Copilot functions as the client.
You set it up through an MCP configuration file (typically named mcp.json) that tells Copilot how to connect to your server.

You could also use input parameters for your API keys in your mcp.json, like the example below:

Postman

Postman makes this very easy.
You just go to the Authorization tab of your request or collection and choose:

  • Type: Bearer Token
  • Token: paste your JWT

Authorization: Bearer <your_jwt_token_here>

You can also automate token retrieval in Postman if you’re using OAuth 2.0 by selecting Type: OAuth 2.0 and filling in your Authorization URL, Client ID, Client Secret, and Scope — then Postman fetches and injects the JWT for you.

Conclusion

Once your MCP server is running within your applications, the power of this approach becomes clear. Your AI agents gain a controlled, secure way to interact with your systems, and you retain insight and control over every action they perform. By connecting, testing, and deploying your server in real-world workflows, it becomes an integral part of your architecture.

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