O2 Exchange Server

MCP (Model Context Protocol) server for the o2 Exchange - A fully on-chain DEX on the Fuel Network. Provides AI agents with trading capabilities, market data access, and technical analysis tools.

Features

• Account Management - Create trading sessions, check balances, manage sessions
• Trading Operations - Place, cancel orders with session-based authentication
• Market Data - Real-time tickers, order books, trade history, and candlestick data
• Technical Analysis - 16+ indicators (RSI, MACD, ADX, BBands, VWAP, etc.) with snapshot/window modes

Available Tools

Tool	Description
o2_markets_list	List all available trading markets
o2_market_ticker	Get real-time market ticker data
o2_depth	Fetch order book depth (bids/asks)
o2_trades	Get recent trade history
o2_indicators	Calculate technical indicators (RSI, MACD, ADX, BBands, VWAP, etc.)
o2_account_create	Create a new trading account
o2_balance	Check asset balance in trading account
o2_session_create	Create trading session with owner key
o2_sessions_list	List all stored sessions
o2_session_get	Get details of a specific session
o2_place_order	Place orders (Spot, Market, FillOrKill, PostOnly)
o2_cancel_order	Cancel an existing order
o2_orders	Get order history with pagination

Installation

bun install
bun run build

Configuration

Environment Variables

O2_NETWORK=devnet               # devnet (default), testnet, or mainnet
O2_PRIVATE_KEY=<your_key>       # Owner private key for trading

Note: Trading sessions are automatically created and stored in ~/.o2-mcp/sessions.json for reuse across sessions.

Claude Code

claude mcp add-json o2-mcp-server '{
  "type": "stdio",
  "command": "node",
  "args": ["/path/to/o2-mcp/dist/stdio.js"],
  "env": {
    "O2_NETWORK": "devnet",
    "O2_PRIVATE_KEY": "your_private_key"
  }
}'

Codex

Add to .codex/config.toml:

[mcp_servers.o2_mcp]
command = "node"
args = ["/path/to/o2-mcp/dist/stdio.js"]
env = { O2_NETWORK = "devnet", O2_PRIVATE_KEY = "your_private_key" }

Other MCP Clients

Add to your MCP client config (e.g., mcp.json):

{
  "mcpServers": {
    "o2-mcp": {
      "type": "stdio",
      "command": "node",
      "args": ["/path/to/o2-mcp/dist/stdio.js"],
      "env": {
        "O2_NETWORK": "devnet",
        "O2_PRIVATE_KEY": "your_private_key"
      }
    }
  }
}

Usage

IMPORTANT: Always ask the agent to create a trading account and session before making trades. Each session lives upto 48 hours

Technical Analysis with Indicators

// Get comprehensive technical indicators for ETH/USDC
{
  marketId: "0x09c17f779eb0a7658424e48935b2bef24013766f8b3da757becb2264406f9e96",
  indicators: ["rsi_14", "macd", "adx_14", "bbands", "vwap", "stoch"],
  resolution: "5m",
  period: "24h",
  mode: "snapshot",
  microSummary: true
}

// Returns: Current indicator values, trend bias, momentum, volatility assessment

Place Order

// Buy 5 USDC worth of FUEL at 1.50 USDC per token
{
  tradeAccountId: "0x...",
  pair: ["FUEL", "USDC"],
  side: "Buy",
  orderType: "Spot",
  rawPrice: "1.50",
  rawQuantity: "5.0",
  sessionId: "session_123"
}

Market Data

// Get ETH/USDC ticker
{
  marketId: "0x09c17f779eb0a7658424e48935b2bef24013766f8b3da757becb2264406f9e96"
}

// Get order book depth
{
  marketId: "0x09c17f779eb0a7658424e48935b2bef24013766f8b3da757becb2264406f9e96",
  precision: "2"
}

AI Prompts

Sample Chat: https://claude.ai/share/2fde9575-755e-4623-a651-47c4f0627e86

Create Session

Initialize trading account and create a session to trade ETH/USDC

Note: When creating an account with o2_account_create, the owner address is automatically derived from your O2_PRIVATE_KEY environment variable if not explicitly provided.

Placing order

Market Buy 2 USDC worth of ETH

Analyze Market

Comprehensive technical analysis of a market.

/o2-mcp:Analyze_Market <market_id> <period>

Example:

/o2-mcp:Analyze_Market 0x09c17f779eb0a7658424e48935b2bef24013766f8b3da757becb2264406f9e96 24h

Analyzes trend, momentum, volatility, support/resistance, and provides trading recommendations.

Technical Indicators

Supported indicators with o2_indicators tool:

Moving Averages: sma_20, sma_50, ema_12, ema_26, vwap

Momentum: rsi_14, mfi_14, cci_20, stoch

Trend: adx_14, plus_di, minus_di, macd

Volatility: bbands, atr_14

Volume: obv

Snapshot Mode (Default)

Returns latest values with metadata, previous values, deltas, and derived fields (%B, bandwidth, ATR distances).

Window Mode

Returns arrays of historical values aligned to timestamps for charting and analysis.

Order Types

• Spot: Standard limit order (default)
• Market: Execute at best available price
• FillOrKill: Fill completely or cancel (no partial fills)
• PostOnly: Maker-only order (adds liquidity)

Learn More

• o2 Exchange
• Fuel Network
• xmcp Documentation
• Model Context Protocol