Harmont docs
APIErrors

passkey_token_invalid

A sign-up or recovery link has expired or was already used.

HTTP status400
typeinvalid_request
codepasskey_token_invalid
Default messageYour sign-up or recovery link has expired. Request a new one.

When this happens

Sign-up and recovery links are single-use and short-lived. You see this after the link in your email has expired, was already redeemed, or was truncated by your mail client.

How to fix it

Request a fresh link from the sign-up or recovery screen and open it promptly. If links keep failing, copy the full URL directly from the email rather than clicking, in case your client wrapped it.

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