i found this on their site: https://developer.americanexpress.com/products/nextgen-agentic-payments/overview?intlink=us-ace-developerkit

but I think this is for folks making b2b apps. I just need a way to get my statements/transactions reliably.

what's worked for you?

Claude is warning me that "Amex is a known re-auth offender. This is the real ongoing cost. Amex periodically forces reconnection — Amex is specifically flagged as a connection that requires re-authenticating more often, and there have been issues where Amex's perpetual MFA broke the Plaid connection entirely with no ETA on a fix. For a set-and-forget cron that's the dangerous failure mode: the connection silently drops, Amex charges stop flowing, and your model quietly understates costs again."

Is Plaid a free option?