> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cs2cap.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CS2Cap API: Build on Normalized CS2 Market Data

> CS2Cap aggregates normalized prices, buy orders, sales, analytics, and portfolio data from 40 CS2 marketplaces into one unified REST API.

CS2Cap is a REST API that aggregates and normalizes market data from 40 CS2 marketplaces — including BUFF163, CSFloat, GameBoost, Skinport, Steam, and more. Whether you're building a trading bot, pricing dashboard, arbitrage scanner, or portfolio tracker, CS2Cap eliminates the work of integrating each marketplace individually and delivers consistent, structured data through a single base URL: `https://api.cs2c.app/v1`.

## Key capabilities

| Capability        | Endpoints                                                                                                                                                    | Description                                                 |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------- |
| **Price data**    | [`/prices`](/api-reference/prices), [`/prices/history`](/api-reference/prices#get-/prices/history-—-price-history)                                           | Current lowest asks and historical candles across providers |
| **Buy orders**    | [`/bids`](/api-reference/bids)                                                                                                                               | Highest buy order snapshots from bid-enabled marketplaces   |
| **Sales**         | [`/sales`](/api-reference/sales)                                                                                                                             | Completed transaction records with price and timestamp      |
| **Candle data**   | [`/prices/candles`](/api-reference/prices#get-/prices/candles-—-price-candles-ohlcv)                                                                         | OHLCV candles aggregated across providers                   |
| **Analytics**     | [`/market/indicators`](/api-reference/market-analytics#get-/market/indicators), [`/market/arbitrage`](/api-reference/market-analytics#get-/market/arbitrage) | Technical indicators, arbitrage edges, and liquidity scores |
| **Portfolio**     | [`/portfolio`](/api-reference/portfolio)                                                                                                                     | Track holdings, import from Steam, and value in real time   |
| **FX conversion** | [`/fx`](/api-reference/catalog#get-/fx-—-fx-rates), `?currency=` param                                                                                       | On-the-fly currency conversion on all price fields          |
| **Item catalog**  | [`/items`](/api-reference/catalog#get-/items-—-list-items), [`/providers`](/api-reference/catalog#get-/providers-—-list-providers)                           | Item identity, metadata, phase, wear, and provider details  |

## Tiers

CS2Cap offers four tiers. All tiers use the same endpoints and authentication model — tier determines your rate limits, monthly quota, and which endpoints are accessible.

| Tier        | Requests/min | Requests/month | Notes                                    |
| ----------- | ------------ | -------------- | ---------------------------------------- |
| **Free**    | 20           | 1,000          | Prices endpoint only                     |
| **Starter** | 40           | 50,000         | Prices, bids, and 100-item batch lookups |
| **Pro**     | 100          | 500,000        | Prices, bids, sales, portfolio           |
| **Quant**   | 300          | 1,000,000      | All endpoints including analytics        |

<Note>
  Starter includes current prices and bids for known item sets. Sales, raw history, market analytics, listing URLs, and NDJSON snapshots require Pro or Quant where applicable.
</Note>

## Where to go next

<CardGroup cols={2}>
  <Card title="Quickstart" icon="bolt" href="/quickstart">
    Make your first API call in under 5 minutes with cURL, Python, or JavaScript.
  </Card>

  <Card title="Authentication" icon="key" href="/authentication">
    Get your API key and learn how to authenticate every request.
  </Card>

  <Card title="API Reference" icon="code" href="/api-reference/overview">
    Explore all endpoints: prices, bids, sales, analytics, and more.
  </Card>

  <Card title="Pricing & Plans" icon="credit-card" href="/guides/pricing-plans">
    Compare Free, Starter, Pro, and Quant tiers by endpoint access and quotas.
  </Card>
</CardGroup>