Ankr Advanced API MCP Server ⚡

This is a Model Context Protocol (MCP) server that provides tools for interacting with Ankr's Advanced APIs. It enables AI models to fetch blockchain data and perform various operations.

Tools

• getAccountBalance: Fetch token balances across multiple blockchains for any address or ENS name
  • Arguments:
    • address: Ethereum address (0x...) or ENS name (*.eth)
    • blockchains (optional): Array of specific blockchains to query. If not provided, checks all supported chains
• getTokenPrice: Get current price for any token (native or ERC20) on supported blockchains
  • Arguments:
    • blockchain: The blockchain network (eth, bsc, polygon, etc.)
    • contractAddress (optional): The token's contract address. Leave empty for native coin

Supported Blockchains

• Mainnets: Ethereum, BSC, Polygon, Arbitrum, Avalanche, Base, Fantom, Gnosis, Linea, Optimism, and more
• Testnets: Ethereum Sepolia, Ethereum Holesky, Base Sepolia, Avalanche Fuji, and others

Setup

Prerequisites

1. Ankr API Key
   • Create a free account at ankr.com/rpc

Configuring Cursor 🖥️

1. Open Cursor Settings
2. Navigate to Features > MCP Servers
3. Click on the "+ Add New MCP Server" button
4. Fill out the following information:
   • Name: Enter a nickname for the server (e.g., "Ankr AAPI MCP")
   • Type: Select "command" as the type
   • Command: env ANKR_API_KEY= npx -y @asphere/aapi-mcp-server

Use with Claude Desktop

{
  "mcpServers": {
    "aapi": {
      "command": "npx",
      "args": ["-y", "@asphere/aapi-mcp-server"],
      "env": {
        "ANKR_API_KEY": ""
      }
    }
  }
}

Local development

Install dependencies

pnpm i

Run local SSE server

export ANKR_API_KEY="YOUR-ANKR-KEY"
pnpm dev:sse

Remote server

            In the remote mode service creates an isolated MCP Server instance for each connection, enabling secure and isolated access over the internet. Each connection requires an `apiKey` in the URL path for authentication with Ankr Advanced API.

Asphere Managed AAPI MCP Remote server

The managed version is available on https://aapi-mcp-server.asphere.network/

https://aapi-mcp-server.asphere.network/{ANKR-API-KEY}/sse

Local Development

# Start the remote server
pnpm dev:remote

# Connect using localhost
http://localhost:3001/{apiKey}/sse

Deployment

When deployed, MCP clients can connect using:

type: sse
url: https://your-remote-url.com/{apiKey}/sse