# Supported Collections As of August 4 2022, NFTBank provides Price Estimates for 7400+ projects. Below are examples of top volume NFT collections and their MAPE\*. > \*MAPE stands for [Median Absolute Percentage Error](https://en.wikipedia.org/wiki/Mean_absolute_percentage_error). In plain English, it's the median error rate.\ > **For example, MAPE is 9%, it means that half the time, our estimate may be off by 9% at most .** For a more comprehensive list, refer to this [Table](https://datastudio.google.com/reporting/9f3e792f-14f7-4cc9-af4d-22db9f8a6016/page/ZYpoC). --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.nftbank.ai/nft-valuation-api-1/supported-collections.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.