ethereum toolkit

This MCP server provides access to a subset of the teckel web3 Ethereum JSON-RPC services—namely those that require read only access to the blockchain (Mainnet and Sepolia).

The main purpose of the ethereum toolkit is to give LLM/AI/Agents real-time access to Ethereum blockchain basic information. Once connected to an LLM via your MCP-client-of-choice, the LLM can use the suite of tools in the toolkit to provide answers to prompts such as:

“What is the current Ethereum price in USD on the mainnet and the sepolia testnet?”

“What is the current Ethereum gas price on the mainnet and the sepolia testnet?”

“What is the balance of my Ethereum Account on the mainnet and the sepolia testnet?”

“What transactions have been processed in the latest block on the mainnet and the sepolia testnet?”

How to Use the teckel Toolkits

First download and install the teckel App.

Next generate an API key using the teckel App.

Do the following:

1. Navigate to the Accounts page by tapping on the wallet icon in the upper right corner of the App home screen. Access the API Key Manager for the created or imported Ethereum Account by tapping “Manage API Key” on the Accounts page.

2. Use the API key when making calls to the endpoints. All the available endpoints are available via the teckel App, incorporating the actual API key for the given Ethereum Account.

3. For illustrative purposes, we will use the following fake key d1e12345-c234-45a6-9b76-1234567891ff in the examples presented below. You would substitute your actual API key in place of this fake key.

Next, decide if you are using the MCP servers or RESTful (API) to access the tools.

Using the MCP Servers

Configure your MCP client-of-choice

Whatever the client, the configuration is essentially the same. Namely, provide the client with the MCP server endpoint and access credentials. These are typically in the form of a configuration JSON snippet, using your API key as the “Bearer” token in the “Authorization” tag. For example, here is the precise configuration for use with the Cursor desktop app (navigate within the Cursor app to the Cursor Settings -> Tools & MCP -> + New MCP server and enter these details using your actual teckel API key to replace this fake one).

MCP JSON configuration (example for use with Cursor)

{
 "mcpServers": {    
    "teckel-ethereum-toolkit": {
      "url": "https://mcp-servers.bh.tkllabs.io:9780/ethereum-mcp",
      "headers": {
        "Authorization": "Bearer d1e12345-c234-45a6-9b76-1234567891ff"
      }
    }   
  }
}

NOTE: This configuration assumes the HTTP(streamable) protocol. If your client requires the older (now legacy) SSE protocol, replace “ethereum-mcp” with “ethereum-sse”.

MCP JSON Configuration (example for use with n8n)

Similarly, for use with n8n, below is the JSON code snippet for a sample workflow which accesses the teckel Ethereum and Navigation Toolkits MCP servers. (Save this entire snippet to a .json file; then import the file to your n8n workflow.) You will need to replace the credentials with your own “Bearer Auth” credential within n8n (using your teckel API key as the “Bearer token”).

{
  "name": "Teckel Tools MCP Example",
  "nodes": [
    {
      "parameters": {
        "endpointUrl": "https://mcp-servers.bh.tkllabs.io:9780/ethereum-mcp",
        "authentication": "bearerAuth",
        "options": {}
      },
      "type": "@n8n/n8n-nodes-langchain.mcpClientTool",
      "typeVersion": 1.2,
      "position": [
   

... [View full README on GitHub](https://github.com/teckel-mcp-servers/ethereum-toolkit#readme)