When an API call returns a number with more than 16 digits, the value stored in Bubble may be rounded. This is a limitation of JavaScript's JSON.parse function — very large integers can't be represented with full precision — and isn't specific to Bubble.
What you might notice
An API call that returns a number with more than 16 digits stores a slightly different value than expected
The number appears rounded up or down compared to the original
Workaround
If you control the API endpoint, return the large number as a string (wrap it in quotation marks in your API response) rather than a numeric value. Bubble will store it as text without attempting to parse it as a number, preserving the exact value.
This is a limitation of how JavaScript's JSON.parse function handles large integers. You can read more about it here.