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ChatGPT web vs app differ on custom MCP server auth

A developer notes ChatGPT web allows bearer token auth for custom MCP servers while the app requires OAuth, and asks OpenAI where auth support is heading.

Liran Tal
@liran_talArchived 1 day agoOriginally posted 2026.10.26
ChatGPT web vs app differ on custom MCP server auth (image 1 of 2)
ChatGPT web vs app differ on custom MCP server auth (image 2 of 2)
Liran Tal @liran_talOriginally posted 2026.10.26
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hey @mxstbr hope I can run an MCP question by about Codex / ChatGPT picture 1 - if I click on Plugins -> Add custom MCP Server on the ChatGPT web interface picture 2 - if I click on Plugins -> Add MCP servers on the ChatGPT app Besides the language being inconsistent, seems like one surface allows for bearer token auth vs the other requires oAuth flows only for auth Can you elaborate a bit more on why this is built like that? I'm building an MCP server I want to connect via auth but am now unsure as to where auth supports drifts towards and which OpenAI client surfaces would be potentially incompatible with it

x.com/liran_tal/status/2114738427098751325Archived 2026.10.27 11:27