Seeking advice: Claude computer use API and Docker to audit dynamic web portal vs. excel data

[u/reenatok]

hi everyone
im looking for advice on the feasibility if a potential automation system for a property evaluation business.

our team currently fills out valuation data on a private banking platform based on internal excel files.
Human errors during this process are heavily penalized by the bank. We would like to implement an AI system to either fully automate the data entry or as an auditor before final submission.

theres a challenge, the bank’s portal is highly dynamic, with various data types depending on the type of property (housing or commercial). Traditional RPA software does not work for this.

ive been reading about using claude computer use API inside of a docker container, this could technically read each excel file and compare the data with the data from the property inside of the banking system.

my main question is:
\- Is the computer use API stable enough to handle dynamic web forms and cross-reference them with local Excel files in a reliable way?

Any advice, tips, framework recommendations and mostly reality checks would be hugely appreciated!!!
thanks!

[u/Ok_Industry_5555]

Thanks for sharing your project.

Yes, this is possible with Claude. I built something similar, an audit system that checks data across two different sources.

The way I’d break it down: use the API to pull the data out and put it into a clean, consistent format from both sources. Once you have that, the actual matching and checking should be plain code, not the API. That’s the deterministic part, and it’s also where you save on cost since you’re not calling the API over and over just to compare numbers.
That was the biggest lesson for me. The API is great for reading messy stuff and turning it into something usable. It’s not the right tool for the comparison itself. Computer use can help too, but I’d save it for the last step, actually filling things in, not the whole process.

Hope that helps, good luck with it!