Learn & Use AI Better / Courses & Learning

Simon Willison: MCP in Claude and ChatGPT

Hands-on guide to connecting a custom MCP server to both Claude and ChatGPT web clients.

ClaudeModel-agnosticOpenAI / Codex

Operator context

Best for

Practitioners who want a structured way to build practical AI skills who want a practitioner-led reference rather than only platform documentation who value practitioner-led guidance and examples.

Why it's here

Hands-on guide to connecting a custom MCP server to both Claude and ChatGPT web clients. We included it because it brings a practitioner perspective from Simon Willison into the courses & learning section of the Index.

When to use it

  • Learn a new AI capability through a structured path
  • Move from conceptual understanding into hands-on work
  • Use Simon Willison's perspective as an input to a technical or product decision

Where this fits

Indexed under Learn & Use AI BetterCourses & Learning. Captured in the August 2026 edition, sourced via Simon Willison.

Common questions

What is Simon Willison: MCP in Claude and ChatGPT? +

Simon Willison: MCP in Claude and ChatGPT is Hands-on guide to connecting a custom MCP server to both Claude and ChatGPT web clients.

Which AI models does Simon Willison: MCP in Claude and ChatGPT work with? +

It is tagged for: Claude, Model-agnostic, OpenAI / Codex.

Where can I access Simon Willison: MCP in Claude and ChatGPT? +

It is available at simonwillison.net.

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