Troubleshoot Claude Science changedclaude-science/troubleshooting

Nearest release: v2.1.284, published 21 hours before upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 29 Sep 2026 14:30 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 29 Sep 2026 14:37 UTC.

Upstream edited 29 Sep 2026 14:30 UTC

Recorded here 29 Sep 2026 14:37 UTC

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First seen 29 Sep 2026 this site's first read of the page

Recorded edits2to this page, all time

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1616### No credentials available for Anthropic API

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18Claude Science is no longer signed in to your Claude account, so it can't send your message.

18Claude Science can't use your Claude sign-in right now, so it can't send your message. Your sign-in may have ended, or a network or server problem may have stopped Claude Science from renewing it automatically.

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2020* If a "You've been signed out" notice appears, select **Sign in** on it, then send your message again.

2121* If the whole window shows "You've been signed out." instead, follow the step that page names to continue.

22* If neither appears, select the gear icon and choose **Sign out**, then confirm with **Sign out**. Signing out stops any sessions that are still running. Sign in again and send your message.

22* If neither appears, wait a moment and send your message again.

23* If the error comes back, sign out and sign in again. Signing out stops any sessions that are still running. Open the account menu (the gear icon at the bottom of the sidebar inside a project, or the account icon at the top right of the home screen), choose **Sign out**, and confirm with **Sign out**. Then sign in and send your message again.

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2425If you see "Your Claude session is no longer valid. Please sign out and sign in again." instead, sign out and sign in again the same way.

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