Labeek.ai — Ledger · Double-entry accounting for prediction market trading

The problem

Thousands of fills. Zero journal entries.

A month of active trading on Polymarket is tens of thousands of micro-fills across dozens of markets, plus splits, merges, redemptions, and stablecoin conversions. Your accountant needs journals. Your auditor needs cost basis. The tax office needs both — in your local GAAP, in your functional currency.

Fills aren't bookkeeping

A CSV of on-chain transfers is not an accounting record. Every fill needs a balanced entry, a counterparty leg, and a document trail that survives an audit.

Outcome tokens have no obvious basis

Positions built across hundreds of partial fills need a defensible cost-basis method — weighted average or FIFO — applied consistently, per market, per outcome.

Stablecoin legs are their own problem

USDC and pUSD movements need inventory treatment, FX translation to your functional currency, and clean reconciliation against wallet balances at period end.

Pipeline

From chain to trial balance

One pipeline, three stages. Every line in the output traces back to a transaction hash.

01 · Ingest

Every on-chain event

Fills, splits, merges, redemptions, and transfers — streamed from Polymarket's CLOB and Polygon via our indexer or your own node. Nothing sampled, nothing skipped.

02 · Post

A canonical double-entry ledger

Balanced journals for every event. Weighted-average or FIFO cost basis. Realized and unrealized PnL, split per market. Multi-wallet consolidation for hot/cold setups.

03 · Export

Books your accountant can post

Journal exports as CSV / JSON or via API. Native formats for FlexiBee, Xero, and QuickBooks. Trial balance and position reports at any date.

Features

Built for the close, not the feed

Trackers tell you what's moving. Labeek Ledger tells you what you own, what it cost, and what you made — in a form that holds up at period end.

Cost basis engine: Weighted-average or FIFO per outcome token, applied deterministically and documented — recompute any period and get the same answer.
Realized / unrealized split: Clean separation of settled PnL from open-position marks, per market and per wallet, at any reporting date.
Multi-wallet consolidation: Hot wallets, cold storage, and proxy wallets roll up into one set of books. Internal transfers net out instead of double-counting.
Stablecoin & FX treatment: USDC and pUSD as cash-equivalent inventory, with translation into your functional currency at your chosen rate methodology.
Reconciliation: Ledger balances checked against on-chain wallet state and exchange positions, with every break surfaced — not buried.
Audit trail: Every journal line carries its transaction hash, order ID, and timestamp. Your auditor can verify any entry independently, on-chain.

Why us

Built by a trading firm, for trading firms

Labeek runs its own systematic strategies on Polymarket. The ledger exists because we needed it: our accountant wanted postable journals, our auditor wanted cost basis, and no tool on the market produced either from raw on-chain data.

So we built the pipeline we wished existed — on-chain ingestion into a canonical double-entry ledger, with exports straight into our accounting system. We close our own books with it every month. Now we're opening it up.

We're a small team in Pilsen, Czech Republic. If you're a fund, prop firm, or the accountant stuck with one as a client, we'd like to talk to you.

On the roadmap

Kalshi and additional venue support
Fair-value marks from options-implied benchmarks
Period-end packages: trial balance, position report, PnL statement
Local GAAP journal templates beyond Czech & IFRS

Early access

Close your books like you mean it

you're on the list — we'll be in touch

Early access opens Q3 2026. Or write to us directly: hello@labeek.ai