ChatGPT vs Claude Desktop for MCP servers

ChatGPT and Claude Desktop differ in 7 of 10 facts: publisher, kind, runs on, connects to, headers for remote servers, server config, servers that work in it.

FactChatGPTClaude Desktop
PublisherOpenAIAnthropic
KindWeb app, Desktop app, Mobile appDesktop app
Runs onWeb, macOS, Windows, LinuxmacOS, Windows, Linux
PriceFree planFree plan
LicenceNot statedNot stated
Connects toLocal (stdio), Remote (HTTP)Local (stdio), Remote (HTTP), Remote (SSE)
Headers for remote serversYesNo
Server configNo config we writeclaude_desktop_config.json (Settings › Developer › Edit Config)
Servers that work in itNo config we write119,761
What we checkedMatches the official docsMatches the official docs
Add a serverIn ChatGPTIn Claude Desktop

From each client's own documentation and site, as linked on its page. The server counts are today's install configs that work in each.