Kwery supports a core set of assets across its data sources. Symbol format varies by source — the same asset uses different strings depending on the platform's naming convention.

Supported Assets

The following assets are available across one or more sources:

Symbol Strings by Source

Each source uses its own symbol format. Pass the exact string shown below as the symbol query parameter.

Binance and Binance Futures

Symbols concatenate the base and quote asset with no separator. The quote asset is almost always USDT:

BTCUSDT, ETHUSDT, SOLUSDT, XRPUSDT

Spot and futures use the same symbol strings.

Chainlink and Hyperliquid

Symbols use the base asset only, uppercase:

BTC, ETH, SOL, XRP

Polymarket and Kalshi

Prediction market sources use market-specific identifiers (event slugs for Polymarket, contract tickers for Kalshi) rather than standardized asset symbols. Use the /v1/markets endpoint to discover available symbols:

# Polymarket markets
curl "https://kwery-api.com/v1/markets?source=polymarket" -H "X-API-Key: YOUR_KEY"

# Kalshi contracts
curl "https://kwery-api.com/v1/markets?source=kalshi" -H "X-API-Key: YOUR_KEY"

Programmatic Discovery

Use the /v1/symbols endpoint to get the full list of supported symbols with per-symbol metadata:

curl "https://kwery-api.com/v1/symbols" -H "X-API-Key: YOUR_KEY"

Response:

{
  "symbols": [
    {
      "symbol": "BTC",
      "name": "Bitcoin",
      "sources": ["binance", "binance_futures", "hyperliquid", "polymarket", "kalshi", "chainlink"],
      "intervals": ["1s", "5m", "15m", "1h", "4h", "1d"],
      "earliest_data": "2024-01-15T00:00:00Z"
    }
  ]
}

This is the fastest way to check what's available before making data queries. The endpoint costs 0 credits.

Validation

Passing an unrecognized symbol returns a 400 error:

{
  "error": "invalid_parameter",
  "message": "Symbol 'BTC-USD' is not available for source 'binance'. Use /v1/markets to list valid symbols."
}