Veri5ight is a Model Context Protocol (MCP) server that creates a direct interface between Claude and Ethereum nodes. It allows Claude to access real-time token balances, contract information, and other blockchain data through your own Ethereum node without rate limits or third-party APIs.
To get Veri5ight up and running:
# Clone the repository
git clone https://github.com/5ajaki/veri5ight.git
# Install dependencies
npm install
# Build the project
npm run build
cp .env.example .env
.env
file to add your Ethereum node URL:ETH_NODE_URL="http://localhost:8545" # Replace with your actual node URL
Add Veri5ight to your Claude Desktop configuration:
{
"mcpServers": {
"veri5ight": {
"command": "node",
"args": ["/absolute/path/to/veri5ight/dist/index.js"]
}
}
}
Important: The path in the configuration must point to the compiled index.js
file in your local dist
directory, which is created when you run npm run build
.
Veri5ight can launch automatically with Claude Desktop, or you can run it manually:
node dist/index.js
Use the ethereum_getTokenBalance
tool to retrieve ERC20 token balances.
Example query:
Claude, what's vitalik.eth's UNI balance?
The ethereum_getTokenDelegation
tool allows you to check delegation information for governance tokens.
Example query:
Claude, who has nick.eth delegated their tokens to?
Retrieve detailed information about any smart contract with ethereum_getContractInfo
.
Example query:
Claude, what can you tell me about this contract: nick.eth
Check an address's recent transactions with ethereum_getRecentTransactions
, which scans the most recent 10 blocks.
Example query:
Claude, show me any recent transactions for vitalik.eth
By default, this returns up to 3 transactions if found within the recent blocks.
If you encounter issues, check Claude's logs:
tail -n 20 -f ~/Library/Logs/Claude/mcp*.log
To add this MCP server to Claude Code, run this command in your terminal:
claude mcp add-json "veri5ight" '{"command":"node","args":["/absolute/path/to/veri5ight/dist/index.js"]}'
See the official Claude Code MCP documentation for more details.
There are two ways to add an MCP server to Cursor. The most common way is to add the server globally in the ~/.cursor/mcp.json
file so that it is available in all of your projects.
If you only need the server in a single project, you can add it to the project instead by creating or adding it to the .cursor/mcp.json
file.
To add a global MCP server go to Cursor Settings > Tools & Integrations and click "New MCP Server".
When you click that button the ~/.cursor/mcp.json
file will be opened and you can add your server like this:
{
"mcpServers": {
"veri5ight": {
"command": "node",
"args": [
"/absolute/path/to/veri5ight/dist/index.js"
]
}
}
}
To add an MCP server to a project you can create a new .cursor/mcp.json
file or add it to the existing one. This will look exactly the same as the global MCP server example above.
Once the server is installed, you might need to head back to Settings > MCP and click the refresh button.
The Cursor agent will then be able to see the available tools the added MCP server has available and will call them when it needs to.
You can also explicitly ask the agent to use the tool by mentioning the tool name and describing what the function does.
To add this MCP server to Claude Desktop:
1. Find your configuration file:
~/Library/Application Support/Claude/claude_desktop_config.json
%APPDATA%\Claude\claude_desktop_config.json
~/.config/Claude/claude_desktop_config.json
2. Add this to your configuration file:
{
"mcpServers": {
"veri5ight": {
"command": "node",
"args": [
"/absolute/path/to/veri5ight/dist/index.js"
]
}
}
}
3. Restart Claude Desktop for the changes to take effect