Adding a custom MCP server to Claude and ChatGPT
Simon Willison · Simon Willison · 2026-07-29
Simon Willison documents that connecting a custom MCP (Model Context Protocol) server to both Claude and ChatGPT's standard chat interfaces is possible but requires multiple steps.
Appears in
Extraction
Topics: model-context-protocolllm-tool-integration
Claims
- Custom MCP servers can be connected to both Claude and ChatGPT's standard chat interfaces.
- The process of connecting a custom MCP server to these platforms involves quite a few steps.
Key quotes
Connecting a custom MCP server to Claude and ChatGPT's standard chat interfaces is possible, but can take quite a few steps.