NFT Portfolio Tracker Research Framework
A methods-first guide to NFT inventory, floor and offer-based valuation, cost basis, concentration, approvals, privacy, and exportable records.
Inventory is verifiable; valuation is estimated
Start with chain-native identifiers and wallet scope. Mark verified collections, unverified assets, hidden items, metadata failures, and suspected spam. A broken image should not cause a token to disappear from the ownership record.
Display a range, not false precision
Useful references can include credible collection offers, collection floor, trait-aware comparables, and recent sales. Label each source and timestamp. A portfolio containing many items from one collection cannot necessarily sell all of them at the displayed floor.
Show concentration and confidence
Break totals down by collection, chain, category, and valuation confidence. Highlight the share supported by thin or stale markets. The apparent total is less informative when most of it depends on one collection or a few uncertain estimates.
Protect the user
Read-only tracking requires public addresses, not transfer approvals. Never ask for seed phrases or private keys. Explain address storage and let users keep labels local. Treat NFT media as untrusted content and isolate rendering.
Valuation lenses
Different references answer different questions
Do not merge them into one number without disclosing the rule.
Bid reference
What a credible buyer currently offers, subject to order validity and eligibility.
Floor reference
The lowest qualifying ask for a collection, useful but not universally applicable.
Comparable-sale range
Observed transactions for similar tokens, limited by sample size and market changes.