meridian-exchange 0.1.0a3

Python SDK for interacting with the Meridian API

Meridian Python SDK

A Python library for interacting with the Meridian trading platform. This SDK provides tools for trading, managing positions, and accessing market data.

SDK Documentation

For full documentation, visit the documentation site.

View the source code on PyPI.

Installation

Using uv (Recommended)

uv is a fast Python package installer and resolver:

# Install uv if you don't have it
curl -LsSf https://astral.sh/uv/install.sh | sh

# Install the SDK
uv add meridian-exchange

Using pip

pip install meridian-exchange

uvloop installs automatically on CPython for macOS/Linux; Windows and other platforms fall back to asyncio.

Quick Start

The SDK provides two client types:

AsyncRESTClient (Recommended for new applications):

import asyncio
from decimal import Decimal
from meridian import AsyncRESTClient

async def main():
    client = await AsyncRESTClient.create({
        "base_url": "https://api.testnet.meridian.xyz",
        "chain_config": {
            "rpc_url": "https://rpc.testnet.meridian.xyz",
            "private_key": "your_private_key",  # optional - required for trading
        }
    })

    # Get market data
    products = await client.list_products()
    product_ids = [p.id for p in products]
    prices = await client.list_market_prices(product_ids=product_ids)

    # Place an order (requires private key)
    await client.create_order(
        order_type="LIMIT",
        quantity=Decimal("1.0"),
        side=0,  # 0 for buy, 1 for sell
        price=Decimal("100.0"),
        ticker="BTCUSD"
    )

    await client.close()

asyncio.run(main())

RESTClient (Synchronous):

from decimal import Decimal
from meridian import RESTClient

client = RESTClient({
    "base_url": "https://api.testnet.meridian.xyz",
    "chain_config": {
        "rpc_url": "https://rpc.testnet.meridian.xyz",
        "private_key": "your_private_key",  # optional - required for trading
    }
})

# Get market data
products = client.list_products()

# Place an order (requires private key)
order = client.create_order(
    order_type="LIMIT",
    quantity=Decimal("1.0"),
    side=0,
    price=Decimal("100.0"),
    ticker="BTCUSD"
)

Main Features

Market Data

• List available trading products
• Get current market prices
• View market order book
• Track funding rates

Trading

• Place market and limit orders
• Cancel orders
• View order history
• Track trades and fills

Account Management

• Manage subaccounts
• View positions
• Track token balances
• Handle deposits and withdrawals

WebSocket Support

• Real-time market data and order updates via WebSocket
• See the WebSocket guide for setup and usage

Configuration

The SDK can be configured with these options:

• private_key: Your private key for authentication
• base_url: API endpoint (default: "https://api.testnet.meridian.xyz")
• timeout: Request timeout in seconds
• verbose: Enable debug logging
• rate_limit_headers: Enable rate limit headers

The SDK automatically enables uvloop on supported platforms and transparently falls back to the built-in asyncio loop elsewhere.

Examples

Get Market Data

async def get_market_data():
    client = await AsyncRESTClient.create({"base_url": "https://api.testnet.meridian.xyz"})

    # List all available products
    products = await client.list_products()

    # Get current prices
    all_product_ids = [product.id for product in products]
    prices = await client.list_market_prices(product_ids=all_product_ids)

    # View market liquidity
    products_by_ticker = await client.products_by_ticker()
    btc_product_id = products_by_ticker['BTCUSD'].id
    liquidity = await client.get_market_liquidity(product_id=btc_product_id)

    await client.close()

asyncio.run(get_market_data())

Manage Orders

async def manage_orders():
    config = {
        "base_url": "https://api.testnet.meridian.xyz",
        "chain_config": {
            "rpc_url": "https://rpc.testnet.meridian.xyz",
            "private_key": "your_private_key"
        }
    }
    client = await AsyncRESTClient.create(config)

    # Place a limit order
    order = await client.create_order(
        order_type="LIMIT",
        quantity=Decimal("1.0"),
        side=0,
        price=Decimal("100.0"),
        ticker="BTCUSD"
    )

    # Cancel an order
    subaccounts = await client.subaccounts()
    await client.cancel_orders(
        order_ids=["<uuid of order>"],
        sender=client.chain.address,
        subaccount=subaccounts[0].name
    )

    # View order history
    subaccount_id = subaccounts[0].id
    orders = await client.list_orders(subaccount_id=subaccount_id)

    await client.close()

asyncio.run(manage_orders())

Account Operations

async def account_operations():
    config = {
        "base_url": "https://api.testnet.meridian.xyz",
        "chain_config": {
            "rpc_url": "https://rpc.testnet.meridian.xyz",
            "private_key": "your_private_key"
        }
    }
    client = await AsyncRESTClient.create(config)

    # List subaccounts
    subaccounts = await client.subaccounts()

    # View positions
    positions = await client.list_positions(subaccount_id=subaccounts[0].id)

    # Get token balances
    balances = await client.get_subaccount_balances(subaccount_id=subaccounts[0].id)

    await client.close()

asyncio.run(account_operations())

Meridian Documentation

For full documentation, visit our documentation site.

Support

For issues and questions, please refer to the project's issue tracker or documentation.