hass

Small Go CLI that prints the Hyperliquid asset id for a perp or spot market.

It calls Hyperliquid's POST /info endpoint and resolves the id from live metadata.

Install

go install github.com/ivaaaan/hass@latest

Make sure your Go bin directory is on PATH:

export PATH="$(go env GOPATH)/bin:$PATH"

Build from source

go build -o hass .

Usage

./hass [--testnet] [--spot] SYMBOL

Examples:

# Mainnet perp. BTC is index 0 in mainnet perp metadata.
./hass BTC

# Mainnet HIP-3 builder-deployed perp. The `xyz` prefix is sent as the meta dex.
./hass xyz:XYZ100

# Testnet perp.
./hass --testnet BTC

# Mainnet spot HYPE/USDC. A bare spot token defaults to the USDC quote.
./hass --spot HYPE

# Testnet spot HYPE/USDC.
./hass --spot --testnet HYPE

Output is only the integer asset id, suitable for scripts.

Resolution rules

Perps

• SYMBOL without a prefix uses default perp metadata (type: "meta") and returns the matching universe index.
• HIP-3 / builder-deployed perps use DEX:COIN. The dex prefix is sent as type: "meta", dex: "DEX"; the tool finds COIN, then calculates:

100000 + perp_dex_index * 10000 + index_in_meta

The perp_dex_index is resolved from type: "perpDexs".

Spot

Use --spot for spot markets.

• BASE defaults to BASE/USDC.
• BASE/QUOTE looks up that exact token pair.
• Universe names such as @107 are also accepted.

Spot asset ids are calculated as:

10000 + spotInfo.index

Note that this is not the token id. For example, HYPE's spot metadata index is different from HYPE's token index.