🚀 Feature: OAuth2 Support for OpenAI (ChatGPT)

gabriel_peixoto · April 7, 2026, 12:25pm

Problem
Today, OpenAI integration in n8n relies on API keys, which:

Don’t support user-level authentication
Don’t integrate with accounts that use subscriptions like ChatGPT Plus

Proposed Solution
Add OAuth 2.0 authentication for OpenAI credentials.

Flow:
Click “Connect with OpenAI”
Redirect to OpenAI login/consent
Receive authorization code
Exchange for access/refresh tokens
Store securely and use in nodes

Why it matters
Secure authentication (no API keys)
Better UX
Enables usage tied to user accounts (e.g., ChatGPT Plus subscribers)

Use cases
Users who already pay for ChatGPT Plus and want native integration

Etienne_Lescot · April 27, 2026, 9:00am

Hi, I opened a draft PR that adds OAuth access token support to the existing OpenAI credential path for OpenAI chat/LLM nodes:

github.com/n8n-io/n8n

feat(OpenAI Node): Support OAuth access token credentials

master ← EtienneLescot:openai-oauth-chat-credentials

opened 08:54AM - 27 Apr 26 UTC

EtienneLescot

+180 -9

## Summary Adds OAuth access token support to the existing OpenAI credential so… OpenAI Chat Model nodes can use credentials produced by browser or headless setup flows, while preserving the existing API key path. This introduces a shared credential token resolver for `openAiApi` and applies it to the OpenAI LangChain callers that instantiate OpenAI clients directly, including chat model execution and model discovery. ## Related Linear tickets, Github issues, and Community forum posts - Related to #29180 - Community forum: http://community.n8n.io/t/feature-oauth2-support-for-openai-chatgpt/285451 No Linear ticket is linked because this is an external contribution and I do not have access to the n8n Linear workspace. The GitHub issue was auto-closed because n8n uses GitHub issues for bugs only, but it is kept here as the public context for this contribution. ## Review / Merge checklist - [ ] I have seen this code, I have run this code, and I take responsibility for this code. - [x] PR title and summary are descriptive. ([conventions](../blob/master/.github/pull_request_title_conventions.md)) - [ ] [Docs updated](https://github.com/n8n-io/n8n-docs) or follow-up ticket created. - [x] Tests included. - [ ] PR Labeled with `Backport to Beta`, `Backport to Stable`, or `Backport to v1` (if the PR is an urgent fix that needs to be backported) ## Validation - `git diff --check` - Targeted Jest commands were attempted but could not run in this checkout because workspace dependencies are not installed (`jest: not found`). `pnpm install --frozen-lockfile` was attempted but stayed silent for more than two minutes, so it was stopped to avoid leaving a long-running background install.

The current implementation is intentionally scoped to supporting OAuth/browser/headless-provided access tokens in the OpenAI credential and making the LangChain/OpenAI chat nodes use that token resolution path, while preserving API key support.

Feedback from the n8n team/community would be very welcome.

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🚀 Feature: OAuth2 Support for OpenAI (ChatGPT)

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