Adding a custom MCP server to Claude and ChatGPT
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Custom MCP integration with Claude and ChatGPT
The text below is an automated extraction of the article at https://simonwillison.net/2026/Jul/29/mcp-in-claude-and-chatgpt/#atom-everything, stored verbatim in the public cerebro-vault repository. Copyright remains with the original publisher (simonwillison.net).
<p><strong>TIL:</strong> <a href="https://til.simonwillison.net/llms/mcp-in-claude-and-chatgpt">Adding a custom MCP server to Claude and ChatGPT</a></p> <p>Connecting a custom MCP server to Claude and ChatGPT's standard chat interfaces is possible, but can take quite a few steps.</p> <p>Tags: <a href="https://simonwillison.net/tags/ai">ai</a>, <a href="https://simonwillison.net/tags/generative-ai">generative-ai</a>, <a href="https://simonwillison.net/tags/chatgpt">chatgpt</a>, <a href="https://simonwillison.net/tags/llms">llms</a>, <a href="https://simonwillison.net/t
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