FabTally OnChain · read-only · no custody

Export any wallet's PnL & tax CSV.
Pay once — no subscription.

Paste one address. Get realized gains (FIFO/LIFO cost basis over full on-chain history, each leg priced in historical USD) and a downloadable CSV. A one-off micropayment instead of a $99–250/year lock-in. Read-only: we never touch your funds and never store your data.

Decode a transaction pre-sign safety

Paste a tx hash (or a contract + calldata) to see, in plain English, what it does.

Token safety check free

API & pricing

FLAGSHIP  POST /v1/pnl-export {address, chains, year?, method?} — $3.00 one-off · full CSV + JSON
DECODE    POST /v1/decode {chain, tx_hash | to+calldata} — $0.01
FREE      /v1/pnl-export/free · /v1/token-safety/free · /v1/approvals/free · /v1/decode/free
PAY       x402 (USDC on Base, eip155:8453) · or prepaid X-FabTally-Key credit
DOCS     openapi.json · /agent/overview · /.well-known/x402

Informational only — NOT tax, investment, or financial advice. PnL is a transfer-based approximation; verify against your records and consult a professional before filing. Read-only, no custody, stateless: nothing about your request is stored.