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Overview

The Model Context Protocol (MCP) connects OneBalance’s documentation and API directly to your AI tools using our hosted MCP server for instant setup.

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Setup Instructions

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General

Our MCP server supports the Streamable HTTP transport and is centrally hosted at: 
https://docs.onebalance.io/mcp
When using API endpoints, AI tools will prompt you for your OneBalance API key as needed. For testing purposes, you can use our public API key with limited usage: 42bb629272001ee1163ca0dbbbc07bcbb0ef57a57baf16c4b1d4672db4562c11

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Claude

Team, Enterprise (Claude.ai)
  1. Navigate to Connectors in Claude settings
  2. Select Add custom connector
  3. Enter name: “OneBalance MCP” and URL: https://docs.onebalance.io/mcp
  4. Select Add
  5. When chatting with Claude, select the attachments button (plus icon)
  6. Select “OneBalance MCP” to query Claude with OneBalance context and API access
Free, Pro (Claude desktop)
  1. Open the file ~/Library/Application Support/Claude/claude_desktop_config.json
  2. Add the following and restart the Claude desktop app:
{
  "mcpServers": {
    "onebalance": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://docs.onebalance.io/mcp"]
    }
  }
}

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Cursor

Install from Cursor’s settings or add manually:
  1. Press Command + Shift + P (or Ctrl + Shift + P on Windows)
  2. Search for “Open MCP settings”
  3. Add to your mcp.json:
{
  "mcpServers": {
    "onebalance": {
      "url": "https://docs.onebalance.io/mcp"
    }
  }
}
  1. Ask in Cursor chat: “What tools do you have available?” to confirm connection

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Visual Studio Code

  1. Press Ctrl/Cmd + P and search for MCP: Add Server
  2. Select Command (stdio)
  3. Enter the following configuration:
npx mcp-remote https://docs.onebalance.io/mcp
  1. Enter the name OneBalance and press enter
  2. Activate using MCP: List Servers, select OneBalance, then Start Server

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Windsurf

  1. Press Ctrl/Cmd + , to open Windsurf settings
  2. Scroll to Cascade → MCP servers
  3. Select Add Server → Add custom server
  4. Add the following:
{
  "mcpServers": {
    "onebalance": {
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://docs.onebalance.io/mcp"]
    }
  }
}

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Zed

  1. Press Cmd + , to open Zed settings
  2. Add the following:
{
  "context_servers": {
    "onebalance": {
      "source": "custom",
      "command": "npx",
      "args": ["-y", "mcp-remote", "https://docs.onebalance.io/mcp"],
      "env": {}
    }
  }
}

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Other MCP-Compatible Tools

Many other tools support MCP servers. Configure them with these settings:
  • Command: npx
  • Arguments: -y mcp-remote https://docs.onebalance.io/mcp
  • Environment: None

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Available Tools

The hosted MCP server provides these capabilities: Documentation:
  • SearchOneBalanceDocs - Search across the OneBalance Docs knowledge base
Account Management:
  • predictAddress - Predict smart account addresses before deployment
  • listAggregatedAssets - List all supported aggregated assets
  • getAggregatedBalance - Fetch aggregated balances for EVM accounts
  • getAggregatedBalanceV3 - Fetch balances with multi-chain support (EVM + Solana)
  • supportedChains - List all supported blockchain networks
Transaction Status & History:
  • getCallsStatus - Check quote execution status and transaction hashes
  • getCallsStatusV3 - Check status with multi-blockchain support
  • getCallsHistory - Retrieve transaction history for EVM accounts
  • getCallsHistoryV3 - Retrieve history with multi-chain support
Quote Generation & Execution:
  • getQuote - Request transfer/swap quotes for EVM chains
  • getQuoteV3 - Request quotes with multi-account support (EVM + Solana)
  • prepareCallQuote - Prepare contract call operations
  • getCallQuote - Get quotes for contract interactions
  • executeQuote - Execute transfer/swap quotes
  • executeQuoteV3 - Execute quotes with multi-chain support
  • prepareCallQuoteV3 - Prepare contract calls with multi-account support
  • getCallQuoteV3 - Get contract quotes with multi-account support

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Authentication

Get your production API key from the authentication page. For testing purposes, you can use our public API key: 42bb629272001ee1163ca0dbbbc07bcbb0ef57a57baf16c4b1d4672db4562c11 AI tools will prompt you for the API key when accessing OneBalance functions. The MCP server handles authentication automatically once configured.

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Usage

Once configured, use these functions directly in your AI tools:
  • Ask questions about OneBalance integration
  • Get live data from your smart contract accounts
  • Generate code with current API context
  • Search docs without leaving your editor

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FAQ

Check that you’re using the correct URL: https://docs.onebalance.io/mcp. If you’re using Claude Desktop or other clients that require mcp-remote, ensure you have the latest version of Node.js installed.
The MCP server will only prompt for API keys when you try to use OneBalance API functions. Documentation search works without authentication. Try asking: “What’s my aggregated balance?” to trigger the API key prompt.
Yes! Get your production API key from the authentication page. The MCP server will prompt you to enter it when accessing OneBalance functions, and it will be securely stored for future use.
OneBalance MCP server supports Streamable HTTP transport at https://docs.onebalance.io/mcp. For clients that don’t support direct HTTP connections, use mcp-remote as shown in the setup instructions.
Try updating your configuration to use WSL explicitly:
{
  "mcpServers": {
    "onebalance": {
      "command": "wsl",
      "args": ["npx", "-y", "mcp-remote", "https://docs.onebalance.io/mcp"]
    }
  }
}

Example Prompts

Ready-to-use prompts to explore OneBalance capabilities

Building with LLMs

Learn about other AI integration options with OneBalance
Need help? Use the Intercom chat widget in the bottom right corner for instant assistance, or contact support@onebalance.io.
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