> ## Documentation Index
> Fetch the complete documentation index at: https://docs.onsiren.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Siren

> A prediction market trading terminal on Solana. Aggregates Kalshi and Polymarket markets, executes trades, tracks your portfolio.

# Siren

Siren is a prediction market trading terminal built on Solana.

It aggregates live markets from Kalshi (via DFlow) and Polymarket into one terminal. You browse markets, trade YES/NO positions, manage your portfolio, and track PnL in one place.

> App: [onsiren.xyz](https://onsiren.xyz)
> Docs: [docs.onsiren.xyz](https://docs.onsiren.xyz)

***

## What Siren does today

* **Market aggregation.** Live prediction markets from Kalshi and Polymarket in a single feed. Politics, sports, crypto, finance, entertainment.

* **Crypto price brackets.** BTC, ETH, SOL, XRP, DOGE, BNB, and HYPE price bracket markets with sparkline charts and live prices.

* **Trade execution.** Buy and sell YES/NO positions. Adaptive execution with partial fill fallback (75% to 50% to 25% to 10%) and CASH settlement fallback when orderbooks are thin.

* **Portfolio tracking.** Live positions, PnL, execution history, send/receive assets.

* **Siren Agent.** Natural language trading. Say "Buy \$20 YES on Bitcoin above 100k" and Siren handles it.

* **Risk intelligence.** Correlation detection across positions, concentration alerts, liquidity warnings.

* **Leaderboard.** Active \$150 USDC trading competition. Rankings by volume and PnL.

* **Nametag identity.** Customizable profile with QR code sharing.

* **Onchain swaps.** Token swaps via Jupiter, directly in the app.

***

## Stack

| Layer                | Tool                                    |
| -------------------- | --------------------------------------- |
| Frontend             | Next.js                                 |
| API                  | Fastify                                 |
| Database             | Supabase                                |
| Prediction execution | DFlow (Kalshi), Polymarket API          |
| Swaps                | Jupiter                                 |
| Auth                 | Privy (social login + embedded wallets) |
| Wallet data          | GoldRush / Covalent                     |
| Email                | Resend                                  |
| Campaigns            | Torque                                  |

***

## Where to go next

* [Quickstart](/quickstart): Sign up, fund your wallet, place your first trade.
* [Product thesis](/essentials/product-thesis): Why Siren exists.
* [Terminal](/essentials/terminal): How the market terminal works.
* [Portfolio](/essentials/portfolio): Positions, PnL, and risk.
* [Siren Agent](/essentials/agentic-workflows): Natural language trading.
* [Execution](/essentials/execution-intelligence): How trade execution works.