Features

Every order type prediction markets should have had from day one.

PredictFlow delivers the trading primitives that venues like Kalshi and Polymarket don't ship natively — without ever taking custody of your funds or asking you to move liquidity off-chain.

Instant market orders

USDC → YES / NO in one signed transaction

Quote and route through DFlow, decode the payload against a strict program whitelist, simulate on a Solana RPC, and sign — all in under three seconds.

Every fill is idempotency-keyed to prevent duplicate signing on component remount.
Submission lock survives React re-renders, so a double-tap cannot double-send.
If simulation fails on the RPC, the signing prompt never opens.

Fails closed on any safety check

Limit orders

Fire when the market crosses your threshold

Set a price target on either side of YES or NO. A client-side monitor polls the live feed every 5 seconds and triggers your buy when the threshold is crossed.

Live price feed via DFlow WebSocket, with REST fallback and a circuit breaker.
Each triggered fill runs through the same validate → decode → preflight → sign pipeline as a market order.
Persisted to localStorage so a refresh doesn't lose pending orders.

Stop-loss

Automated downside protection on open positions

Once you hold a YES or NO position on a market, the stop-loss tab unlocks. Set a floor price and PredictFlow closes out automatically if the market moves against you.

Tab only appears when a filled position exists — no stray sell buttons on untouched markets.
Same signing pipeline and simulation gate as a manual trade.
Persistent banner reminds you conditional orders run in the browser; close the tab and they pause.

Take-profit

Lock in gains without watching the tape

Twin of stop-loss — set a ceiling and let the terminal exit when the market prints it. Ideal for binary outcomes that resolve sharply.

Trigger direction is inferred from position side (YES vs NO), so the math is always right.
Combine with stop-loss for a symmetric bracket around any position.
Every conditional order records its entry price, trigger price, and execution details.

DCA — recurring buys

Dollar-cost-average into conviction plays

Split a budget across N purchases at a fixed frequency. Every tick runs through the same quote/decode/simulate/sign pipeline as a manual trade.

Execution history is persisted per strategy — price, amount, and fill timestamp.
Pause, resume, or cancel mid-run without losing earlier fills.
The DCA loop and conditional-order loop co-exist without stepping on each other (shared positions lock).

Non-custodial wallet

Phantom, Solflare, Backpack — your keys, your signs

PredictFlow never sees your private key. Wallets are browser-injected (no wallet-adapter dependency), and every transaction is decoded and preflighted before the signing prompt appears.

Mobile deep-links for Phantom and Solflare via universal links when no extension is detected.
Reconnect-on-reload using a pubkey mirror in localStorage, never the key material.
Wallet pubkeys are SHA-256-hashed before they ever appear in an analytics event.

Portfolio

Wallet-scanned positions with mark-to-market P&L

Scans your wallet directly on Solana RPC, matches against filled positions in localStorage, and marks them to the latest DFlow price for live P&L.

Works against mainnet or a paid RPC provider — Helius, Triton, QuickNode.
Settlement progress is visualized per position; resolved markets show final payouts.
No indexing required — the entire portfolio is derived from on-chain state + local order history.

Transaction safety

Four defenses before any signing prompt

Payload size check → @solana/web3.js decode → program-whitelist assertion → RPC preflight. A compromised or malformed DFlow response never reaches your wallet.

Whitelist covers System, SPL Token, ATA, ComputeBudget, Memo, and the DFlow router program — nothing else can execute.
Preflight simulates against your configured RPC and fails closed on RPC unavailability.
Content-Security-Policy restricts connect-src to DFlow, Solana, and wallet icon origins only.

Fails closed on every boundary

Feature matrix at a glance

Compared against native prediction-market UIs.

Capability	PredictFlow	Typical PM UI
Market orders	✓	✓
Limit orders	✓	Partial
Stop-loss	✓	✗
Take-profit	✓	✗
DCA strategies	✓	✗
Non-custodial wallet	✓	Partial
Program-whitelisted tx signing	✓	✗
RPC preflight simulation	✓	✗
Self-hostable	✓	✗
Offline demo mode	✓	✗

Every feature, zero trust assumed.

All of it works against real DFlow liquidity on Solana mainnet. No backend to trust — the code runs in your browser.

Launch terminal How it works