Buy from Etsy sellers inside ChatGPT | Real World MCP use case

Do this with your agent

How you could do the same thing today. “Official MCP” is the vendor's own server. “Manual” means you use the provider's own site or app.

Agentic Commerce ProtocolManual through the provider
Named in the source. It is not in our directory yet, so use it from its own site.
Real World MCPFind it through our connector
Add our server and ask your agent to run search_tools. It lists Lob with prices and links. It does not place orders.
Send a letter or postcard from your AI agentStep by step
What works today, through which server, at what price.
20 mail & print servers and APIsBrowse
Every MCP server and API we list for this kind of job, with install lines, auth and price.

Add Real World MCP to your agent

22 live tools

ClaudeOne click (opens in a new tab)CursorOne clickSomething else?Setup guide

Open the Add custom connector dialog , prefilled. Or go to Customize → Connectors → + Add → Add custom connector.
Name it Real World MCP, paste this URL, pick No sign in, then Add.

https://www.realworldmcp.com/api/mcp

On ChatGPT on the web, open Plugins, click +, then Add custom MCP server.
Name it, paste this URL under Connection, and pick No authentication.
Accept the warning, click Create as a plugin, then install it.

https://www.realworldmcp.com/api/mcp

Run once in your terminal, then type /mcp in Claude Code to see the tools.

claude mcp add --transport http realworldmcp https://www.realworldmcp.com/api/mcp

Run this once, or add the two lines below to ~/.codex/config.toml.

codex mcp add realworldmcp --url https://www.realworldmcp.com/api/mcp

Gemini app: on gemini.google.com, Settings → Connected Apps, then under Custom apps paste this URL and click Next.

https://www.realworldmcp.com/api/mcp

Gemini CLI:

gemini mcp add --transport http --scope user realworldmcp https://www.realworldmcp.com/api/mcp

Add to Cursor opens Cursor with the server filled in. Or add this to ~/.cursor/mcp.json.

{
  "mcpServers": {
    "realworldmcp": {
      "url": "https://www.realworldmcp.com/api/mcp"
    }
  }
}

Run this once (macOS or Linux shell), or add the server to .vscode/mcp.json. Then use it from Copilot Chat in agent mode.

code --add-mcp '{"name":"realworldmcp","type":"http","url":"https://www.realworldmcp.com/api/mcp"}'

In Cascade's MCP menu, choose Open MCP config file and add this server. Then press refresh.

{
  "mcpServers": {
    "realworldmcp": {
      "serverUrl": "https://www.realworldmcp.com/api/mcp"
    }
  }
}

Any client that speaks Streamable HTTP MCP. No auth. Most take this JSON, or just the URL.

{
  "mcpServers": {
    "realworldmcp": {
      "url": "https://www.realworldmcp.com/api/mcp"
    }
  }
}

Free, no key, no account. Your agent gets search_tools, get_tool and call_tool and 22 live tools. All clients and full steps

ChatGPT, Claude, Codex, Cursor, GitHub Copilot, Gemini and Windsurf are trademarks of their respective owners. Real World MCP is not affiliated with them, and compatibility does not imply endorsement or partnership.

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The story is in our words. The source was opened on Nov 2, 2026 and a key phrase was found in it. See all use cases.