Kairos vs POLYDESK
Kairos and POLYDESK are both filed under Platforms & Tools. Both are trading platforms, and both are free. Below: the facts side by side, where the two actually differ, and when each one is the better pick.
Cross-venue trading terminal that merges Kalshi, Polymarket and Predict.fun into one order book.
Compared with POLYDESK
Desktop click-trading cockpit for Polymarket from itereon GmbH in Vienna: a one-click price ladder and a grid view in the style of exchange trading tools, with stake presets, quick take and quick cancel, hotkeys, live depth minimaps, cash-out and exposure fig…
Compared with KairosAt a glance
| Fact | Kairos | POLYDESK |
|---|---|---|
| Type | Trading platform | Trading platform |
| Category | Platforms & Tools | Platforms & Tools |
| Also listed in | Arbitrage, Market Making | — |
| Pricing | Free | Free |
| Price | free terminal · API by contract | free · Plus price TBA |
| Risk rating | Medium risk | Medium risk |
| Markets | Kalshi, Polymarket and Predict.fun — trading and data, Hyperliquid HIP-4 outcome markets — data only, Every listed category, aggregated per event | All Polymarket markets, including multi-outcome events, Live order-book depth per outcome, Paper mode on live data |
| Source | Source not published | Source not published |
| Runs in Telegram | No | No |
| Listed since | Sep 15, 2026 | Sep 15, 2026 |
Highlighted rows differ
Key differences
- They cover different markets: Kairos lists Kalshi, Polymarket and Predict.fun — trading and data and Hyperliquid HIP-4 outcome markets — data only and 1 more, POLYDESK lists All Polymarket markets, including multi-outcome events and Live order-book depth per outcome and 1 more.
- Only Kairos is filed under Arbitrage and Market Making.
Choose Kairos if…
- you trade Kalshi, Polymarket and Predict.fun — trading and data and Hyperliquid HIP-4 outcome markets — data only and 1 more
- your focus is Arbitrage and Market Making
Choose POLYDESK if…
- you trade All Polymarket markets, including multi-outcome events and Live order-book depth per outcome and 1 more
What Kairos does
Cross-venue trading terminal that merges Kalshi, Polymarket and Predict.fun into one order book. Matching contracts on different exchanges are shown as a single instrument with a composite ladder and a global best bid and offer, so you can see which venue is actually cheapest before you send, and an order to the NBBO endpoint routes to whichever book shows that price. Feeds are ingested next to the venues and merged in the browser with no polling interval; the ticket carries GTC, GTD, FOK, FAK and IOC time-in-force, post-only and slippage caps, with batch cancel and a per-venue kill switch. A bots panel runs parameterised templates — market making, cross-venue arbitrage, dip buying — against recorded books first and promotes the same config to live. The same engine is exposed as a REST and WebSocket API with scoped keys, IP whitelisting and a free read-only market-data tier. Built by a team from high-frequency trading firms and exchanges and backed by a $2.5M seed led by a16z.
Features- Composite order book and NBBO across three venues, with prices, probabilities and share counts normalised to one convention
- Sub-second colocated feeds merged client-side over WebSocket — quotes and fills land without polling
- Pro order ticket: GTC / GTD / FOK / FAK / IOC, post-only, slippage caps, batch cancel of up to 100 orders and a per-venue cancel-all kill switch
- Bot templates for market making, cross-venue arbitrage and dip buying, backtested on recorded books and promoted to live unchanged
- Draggable workspace with saved layouts, positions, orders, time and sales, holders and market rules on one screen
- Aggregation is the product: the same event often trades at different prices on Kalshi, Polymarket and Predict.fun, and a single-venue app cannot see the gap. Kairos builds one book across all of them so the cheapest side is visible and routable from one ticket.
- Execution is self-custodial through Turnkey enclaves — Kairos signs within a policy you set, or hands you an EIP-712 payload to sign yourself on allow-listed accounts — and keys are exportable. That is still signing authority held by a third party, which is why the custody line above does not say non-custodial.
- The bots are templates, not a track record: nothing on the site publishes live P&L for any strategy, and the terminal itself sits behind an account we did not create. What we exercised is the public surface — docs dated Aug 21, 2026, the data dashboard reading both venues' APIs, and the API endpoints answering as documented.
What POLYDESK does
Desktop click-trading cockpit for Polymarket from itereon GmbH in Vienna: a one-click price ladder and a grid view in the style of exchange trading tools, with stake presets, quick take and quick cancel, hotkeys, live depth minimaps, cash-out and exposure figures, position and P&L tracking and a session log. It runs on your own Windows or Apple Silicon machine and talks to Polymarket directly — the signer key is generated and stored locally and signs every order on-device, with no itereon server in the path. An ARMED / DISARMED toggle and a red CANCEL ALL sit in the top bar, and paper mode trades the full cockpit against live data with simulated fills. Free for life with live trading included under size caps — $25 stake, $100 exposure and five open orders per market — and no builder fee; a flat Plus licence will lift the caps. Open beta since September 2026, closed-source, shipped as checksummed GitHub releases.
Features- One-click ladder and grid views with stake presets, quick take, quick cancel and keyboard-driven order entry
- Live depth, auto-centering ladders and a minimap; cash-out and exposure figures on open positions
- ARMED / DISARMED toggle and a CANCEL ALL kill switch one key away; session stats and a live log
- Non-custodial by design — the signer key never leaves your machine, orders are signed on-device and sent straight to Polymarket
- Windows 10/11 and macOS on Apple Silicon (Intel Macs unsupported); installers with signatures and SHA-256 checksums on GitHub
- A manual trading tool with no strategy of its own: it shortens the distance between seeing a price and being on it, which matters most on fast markets where a form-based web page loses the level. What you click is what you get.
- The security model is the point. Nothing routes through the vendor — no custody, no order routing, no key material — so the risk is your machine's, and the docs tell you to verify the checksum, start in paper mode and keep a backup of your wallet credentials.
- Very new and very small: the domain was registered Aug 27, 2026, beta builds v0.5.0 and v0.5.1 were published on Sep 14, and each installer had been downloaded about a dozen times when we looked. It is a closed binary from an Austrian AI-automation consultancy (VAT ATU83377089), not an open-source project.
More head-to-heads
Every fact on this page is taken from the two listings as their authors publish them; POLBOTS verifies neither performance nor claims and has no stake in either tool. Nothing here is financial advice.