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

# Welcome to Predexon

> One stack across every prediction market — data, signals, and execution behind a single API key.

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  {`
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Predexon is prediction-market infrastructure for builders, traders, and AI agents. One API key gives you everything below.

## How it fits together

```mermaid theme={null}
flowchart TB
  KEY([🔑 One Predexon API key])

  KEY --> DATA[Data API<br/><code>api.predexon.com</code>]
  KEY --> TRADE[Trading API<br/><code>trade.predexon.com</code>]
  KEY --> WS[WebSocket<br/><code>wss.predexon.com</code>]
  KEY --> MCP[MCP Server<br/>for AI agents]

  DATA --> D1[Markets · Prices · Candles<br/>Orderbook History · Trades]
  DATA --> D2[Wallets · P&L · Smart Money<br/>Leaderboards · Cross-venue matching]

  TRADE --> T1[Managed accounts<br/>Custody via Turnkey]
  TRADE --> T2[Venue-specific orders]
  TRADE --> T3[Funding · Withdrawals<br/>Partner fees]

  WS --> W1[Live trades · Pending trades<br/>Orderbook · Activity]
  WS --> W2[Lifecycle · Oracle<br/>Crypto price streams]

  MCP --> M1[39 tools across<br/>every surface above]

  classDef key fill:#7C3AED,stroke:#7C3AED,color:#fff
  classDef surface fill:#1f1f1f,stroke:#7C3AED,color:#fff
  classDef detail fill:#f5f3ff,stroke:#7C3AED,color:#1f1f1f
  class KEY key
  class DATA,TRADE,WS,MCP surface
  class D1,D2,T1,T2,T3,W1,W2,M1 detail
```

**Read the diagram top-down.** Pick the surface you need. Mix freely — most real integrations use REST + WebSocket together, often with MCP for agent-driven flows.

***

## Pick your path

<CardGroup cols={2}>
  <Card title="Quant / data trader" icon="chart-line" href="/start-here/quant-guide">
    You want candlesticks, orderbook history, wallet P\&L, smart-money signals, and live WebSocket feeds to build models, dashboards, or backtests.

    **Start with** [Quant Quickstart →](/start-here/quant-guide)
  </Card>

  <Card title="App builder / platform" icon="cube" href="/start-here/builder-guide">
    You're building a product that places trades across venues — copy-trading, structured products, prediction-market UX. You want one API, one funding flow, one set of keys.

    **Start with** [Builder Architecture Guide →](/start-here/builder-guide)
  </Card>

  <Card title="Active trader / fund" icon="bullseye" href="/start-here/active-trader-guide">
    You want both: data to find edges, execution to act on them. Cross-venue arbitrage, smart-money following, automated strategies.

    **Start with** [The combined data + execution flow →](/start-here/active-trader-guide)
  </Card>

  <Card title="AI agent developer" icon="brain" href="/start-here/agent-cookbook">
    You're shipping an agent that reads prediction-market state or places trades. Drop the MCP server into Claude, Cursor, Codex, or your own stack.

    **Start with** [Agent Cookbook →](/start-here/agent-cookbook)
  </Card>
</CardGroup>

<Note>
  **First time here?** Run [Get Started in 5 minutes](/start-here/get-started) — sign up, get a key, make your first call. Then come back and pick your path.
</Note>

***

## Coverage at a glance

| Venue                          | Market data | Real-time | Trading |
| ------------------------------ | :---------: | :-------: | :-----: |
| **Polymarket**                 |      ✓      |     ✓     |    ✓    |
| **Kalshi**                     |      ✓      |     ✗     |    ✗    |
| **Limitless**                  |      ✓      |     ✗     |    ✓    |
| **Opinion**                    |      ✓      |     ✗     |    ✓    |
| **Predict.fun**                |      ✓      |     ✗     |    ✓    |
| **Hyperliquid**                |      ✗      |     ✗     |    ✓    |
| **Binance** (crypto reference) |      ✓      |     ✗     |    ✗    |
| **Chainlink Data Streams**     |      ✗      |     ✓     |    ✗    |

***

## Plans

<Tip>**Most market data is free and unlimited** on every plan. Trading API calls don't count toward your Data API quota.</Tip>

|                            | Free    | Dev                | Pro                             | Enterprise |
| -------------------------- | ------- | ------------------ | ------------------------------- | ---------- |
| **Price**                  | \$0/mo  | \$49/mo            | \$249/mo                        | \$499+/mo  |
| **Rate limit**             | 1 req/s | 20 req/s           | 100 req/s                       | Custom     |
| **Monthly requests**       | 1,000   | 1M                 | 5M                              | Unlimited  |
| **WebSocket**              | ✗       | 10 subs × 10 items | 100 subs × 500 items, wildcards | Custom     |
| **Smart Money & Matching** | ✗       | ✓                  | ✓                               | ✓          |
| **Trading API**            | ✓       | ✓                  | ✓                               | ✓          |

[Authentication & rate limits →](/authentication) · [Full pricing →](https://predexon.com/pricing)

***

## Need help?

<CardGroup cols={2}>
  <Card title="Join Discord" icon="discord" href="https://discord.com/invite/dxwzMcs8hX">
    Active community, direct line to the team.
  </Card>

  <Card title="Email the team" icon="envelope" href="mailto:team@predexon.com">
    Enterprise, partnerships, anything else: `team@predexon.com`.
  </Card>
</CardGroup>