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Adding a custom MCP server to Claude and ChatGPT

Simon Willison TIL · published 29 July 2026

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Read the post at til.simonwillison.net Wayback capture
2blogs citing
First cited
31 Jul 2026
Most recent
31 Jul 2026
Rank this month
not ranked
Links from this post
12
Words captured
347

Cited by

Blog
In the post
Date
Simon Willison
Stateless MCP has recaptured my interest (and inspired mcp-explorer and datasette-mcp) Read at the source ↗
31 Jul 2026
georgewalkley.com
Context Window 87 Read at the source ↗
31 Jul 2026

Links from this post

Link
Host
https://modelcontextprotocol.io/
modelcontextprotocol.io
https://claude.ai/
claude.ai
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/claude-connectors-menu.webp
raw.githubusercontent.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/claude-add-custom-connector-dialog.webp
raw.githubusercontent.com
https://chatgpt.com/
chatgpt.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-settings-developer-mode.webp
raw.githubusercontent.com
https://chatgpt.com/plugins
chatgpt.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-plugins-page-add-button.webp
raw.githubusercontent.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-new-plugin-dialog.webp
raw.githubusercontent.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-mcp.gif
raw.githubusercontent.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-connect-prompt-in-chat.webp
raw.githubusercontent.com
https://raw.githubusercontent.com/simonw/til/refs/heads/main/llms/chatgpt-connect-consent-modal.webp
raw.githubusercontent.com