Independent On-Chain Verification

Run an Audit

Free to use. No account required. Free tier: up to 800 transactions, 3 audits per 7 days. Paste your addresses, select chains, and submit — results are delivered as a ZIP within minutes.

Free tier

Free tier: up to 800 transactions, 3 audits per 7 days.

Wallet Addresses

Networks

Bitcoin and Solana are detected automatically from your address format — no selection needed.

Tax Year Range

Optional Files

🔍 Drop file or click to upload .csv — enables mismatch_report.csv ↑ Upload this to unlock mismatch detection
📊 Drop files or click to upload .csv — multiple files accepted
📂 Drop file or click to upload .json — improves self-transfer classification

What you'll receive

  • truebasis_audit_report.xlsx
  • truebasis_audit_summary.csv
  • review.csv — items by risk level
  • mismatch_report.csv (if tax CSV uploaded)
  • truebasis_audit_pack.md
  • flags.json — machine-readable

Free tier limits

  • 3 audits per 7 days (per IP)
  • 800 transactions (hard limit)
  • Queued jobs when the server is busy
  • Jobs expire after 1 hour
  • Large audits: up to 25 min
NOT TAX ADVICE. TrueBasis provides structural verification only. It does not calculate gains, losses, or cost basis. Results are not a substitute for professional tax counsel.

Watchlist

Monitor addresses for high-risk or notable activity. Checks run every 6 hours. Max 3 entries per access key.

Add to Watchlist
Your watchlist entries

Enter your access key above and entries will load. Click an entry to expand alerts.