which apps can sign in to your chatgpt or claude plan?

read a date and an access method together

a post about copied oauth tokens, a program running a vendor's published binary and an api-key connection can describe different arrangements. do not carry a conclusion from one to the others. start with the provider's current terms, then read the documentation for the precise login path.

we checked each provider's own pages for this log on 12 november 2026. archived pages describe wording at that earlier time. a date range means the change appeared between two archive snapshots, not that we know its exact publication day. the automation sign-in overview explains what dusk runs.

anthropic: the history behind conflicting answers

• 8 october 2025, terms effective date: anthropic's consumer terms prohibit automated or non-human access except via an anthropic api key or where anthropic explicitly permits it.¹
• 2 to 18 february 2026: the code legal page gained authentication wording. the 18 february archive says oauth tokens from free, pro or max accounts were intended for claude code and claude.ai and prohibited in other products, including the agent sdk. this wording has since changed.²
• 3 april 2026: claude code lead boris cherny announced that from the following day at noon pacific, claude plans would no longer cover third-party tools such as openclaw. that was the rule then; it has changed since.³
• 13 may 2026: anthropic announced that agent sdk use on plans would move to a separate monthly credit from 15 june (reported by the new stack).¹⁹
• 15 june 2026: anthropic's support article said it had paused previously announced agent sdk changes. it said agent sdk, claude -p and third-party app usage still drew from plan limits 'for now'.⁴
• 16 june to 17 july 2026: archived legal wording described oauth as intended for purchasers of listed plans to support ordinary use of claude code and other native anthropic apps.⁵
• 16 to 30 august 2026: the legal page added a hosted-product section and text describing end-user sign-in to the unmodified claude code binary, including where a platform hosts it.⁶
• 7 october 2026: the support article again said signed-in agent sdk and claude -p continued drawing from plan limits, and said max, ultra and team now included monthly api credits.⁴

as of 12 november 2026: anthropic's current legal page allows end-user sign-in to the unmodified claude code binary under its hosting conditions while restricting developer credential handling, and anthropic's login help article says it may allow certain third-party tools for paid subscribers who have turned on usage credits, and keeps the right to bill that use to credits rather than plan limits; see the sign-in overview.⁷⁸

read those current pages together. neither the paused-change note nor an old restriction establishes a blanket answer about an app today. the claude pricing comparison separates billing arithmetic from access conditions.

openai: documented codex and supported-app access

as of 12 november 2026, codex documentation lists chatgpt sign-in for plan access and api-key sign-in for usage-based access. it recommends api keys for programmatic cli workflows such as ci/cd jobs.⁹

the separate sign-in-with-chatgpt page says eligible go, plus, pro and business accounts can choose plan access in supported apps. it lists openclaw, opencode, pi and t3 among open-source integrations. app requests count toward existing limits, connecting an app adds no new allowance, and the app may charge its own fees. users can cap an app's weekly share.¹⁰

those statements describe openai's documented program and named integrations. do not infer that an unlisted app is endorsed or that a working login removes usage limits. check the current provider page for the app you are considering.

google: the cli transition does not remove the faq restriction

• 27 february 2026: gemini cli terms documentation added explicit wording that accessing its underlying services with third-party software, naming openclaw with gemini cli oauth, violates applicable terms and policies.¹¹
• 19 may 2026: google announced that gemini cli would stop serving consumer google ai pro, ultra and free individual accounts on 18 june 2026, with a transition to antigravity cli.¹²

as of 12 november 2026: google's terms prohibit third-party access and its faq says wrapping agy in third-party apps is unsupported under consumer plans; see the sign-in overview.¹³¹⁴

antigravity also documents an acp route where an editor starts agy acp as a subprocess. that's about editors starting agy directly, not about every app.¹⁵ gemini scheduled actions concern gemini apps, a separate feature from cli sign-in.

xai: what grok build documents

as of 12 november 2026, grok build documents interactive, headless and acp use, with browser authentication or an api key where no browser is available; see the sign-in overview.¹⁶

on 12 october 2026, xai introduced the x subscription, folding in standalone supergrok for new customers; existing supergrok subscribers can keep their plan. consumer terms updated 27 october prohibit sharing credentials or making the account available to anyone else.¹⁷¹⁸

xai hasn't said anything specific about desktop apps like this one. check your provider's current terms and the exact product documentation before relying on unattended access.