It is. There is no reason to have an API for this data, it should never be leaving IRS systems.

> This would make it easy for cloud providers to access IRS data including taxpayer names, addresses, social security numbers, tax returns, and employment information, which could all be exported to external systems. According to Wired, a third-party party vendor would manage parts of the project, with Palantir “consistently” brought up as a candidate.

> “It’s basically an open door controlled by Musk for all Americans’ most sensitive information with none of the rules that normally secure that data,” an anonymous IRS worker reportedly told Wired.

they want to make IRS data available to other branches of the government, namely ICE, FBI, DOJ, etc. Which of course is illegal, but of course this administration doesn't care about that. They also don't seem to understand that part of the reasoning of keeping that information secret is to avoid discouraging criminals or undocumented immigrants from paying taxes.