Errors

Status	Meaning	What to do
400	A required parameter is missing	Often a locationId — pin one with pxb location use
401	The token was rejected	Disconnected or revoked; run pxb auth again
403	Missing a scope	Grant it under Dev Tools → CLI, or to the API client
404	No such record, or no such endpoint	Check the path; pxb help commands lists the forms
429	Rate limited	The message says how long to wait

Local failures worth naming:

• "This sign-in has ended" — it was disconnected under Dev Tools → CLI, a refresh token was used twice, or it sat unused for 90 days. Run pxb auth.
• "Sign-in was cancelled in the browser" — you chose Cancel on the consent page. Nothing was connected.
• "Sign-in was declined in the browser" — the same, for --device.
• "The sign-in code expired" — nobody approved pxb auth --device within 30 minutes. Run it again for a new code.
• "No stored client secret" — the keychain entry is gone. Run pxb auth; your client ID is remembered, so you only need the secret.
• "Could not read the client secret" — the keychain is locked or unavailable. Unlock it and run the same command again; nothing was lost.
• "Refusing to send credentials" — --base-url (or PXB_BASE_URL) is plain http on a host other than localhost. Use its https address.