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Ankr API MCP Server

@akki91

Repository

Basic information

Category

Developer Tools

Transports

stdio

Author

akki91

About Ankr API MCP Server

MCP server for Ankr APIs

#ankr#mcp#blockchain#api

Ankr API MCP Server config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "ankr-mcp": {
      "command": "npx",
      "args": [
        "@akki91/ankr-mcp"
      ]
    }
  }
}

Ankr API MCP Server tools

21

Gets all token balances for a wallet address on a specific blockchain. Returns coin and token balances with USD values.

Gets a list of all currencies (tokens) available on a specific blockchain.

Gets the current USD price for a specific token. Omit contractAddress for native coin price.

Gets the list of holder addresses for a specific token. Premium API.

Gets the number of token holders with historical count data. Premium API.

Gets token transfer history for one or more addresses across blockchains. Premium API.

Gets historical token price data over time. Premium API.

Gets a breakdown of how a token's price is derived (liquidity pools, pairs). Premium API.

Gets all NFTs owned by a specific wallet address across blockchains.

Gets metadata (name, description, image, traits) for a specific NFT by contract address and token ID.

Gets all wallet addresses that hold NFTs from a specific collection. Premium API.

Gets NFT transfer history for specified address(es). Premium API.

Gets blockchain statistics including total transactions, block time, and native coin price.

Gets full block data for a specified block range on a blockchain.

Gets historical event log data for a block range, with optional filtering by address and topics.

Gets details of a transaction by its hash. Can search across multiple blockchains.

Gets all transactions for a wallet or contract address. Premium API.

Gets a list of all blockchains a wallet address has interacted with.

Gets the historical balance of a wallet at a specific block height. Premium/Early Access API.

Gets internal transactions (contract-to-contract calls) within a specific block. Premium API.

Gets internal transactions triggered by a specific parent transaction. Premium API.

Overview

What is Ankr API MCP Server?

An MCP (Model Context Protocol) server that fetches on-chain data via the Ankr API, allowing LLMs to query blockchain data across 20+ chains using 21 tools.

How to use Ankr API MCP Server?

Install the package via npm, set the ANKR_API_TOKEN environment variable with your Ankr API token, then run npx @akki91/ankr-mcp. Integrate with MCP-compatible apps (e.g., Claude Desktop) by adding the server to your app’s mcpServers configuration.

Key features of Ankr API MCP Server

  • 21 tools across Token, NFT, and Query categories
  • Get token balances, prices, holders, transfers, and price history
  • Fetch NFTs by owner, metadata, holders, and transfers
  • Query blockchain stats, blocks, logs, and transactions by hash or address
  • Check wallet interactions across chains and historical balances
  • Explain how a token price is derived

Use cases of Ankr API MCP Server

  • Retrieve token balances for any wallet on Ethereum or other supported chains
  • Look up current USD price and historical price data for any token
  • Get NFT ownership and metadata for wallets and collections
  • Investigate blockchain transactions, internal transactions, and event logs
  • Monitor wallet interactions and historical account balances

Frequently asked questions

1

What do I need to run this server?

You need Node.js and npm installed. You also need a valid Ankr API token, set as the environment variable `ANKR_API_TOKEN`.

2

How do I integrate it with Claude Desktop?

Add the MCP server configuration under `mcpServers` in your Claude Desktop developer settings, then restart the app. The tools will appear in the Tools icon.

3

Which blockchains are supported?

The server supports 20+ blockchains via the Ankr Advanced API. The README does not list specific chains, but tools work across all supported by Ankr.

4

Is any local blockchain storage required?

No. All data is fetched live from the Ankr API; no local blockchain node or database is needed.

5

What authentication does the server use?

The server uses an API token (`ANKR_API_TOKEN`) passed as an environment variable for authentication with the Ankr API.

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