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phalcon-mcp

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MCP server that integrates with the BlockSec https://blocksec.com platform to provide blockchain transaction analysis.

8 stars GoAI & Machine Learning Updated Oct 22, 2025

Documentation

Phalcon MCP Server

This MCP server integrates with the BlockSec platform to provide blockchain transaction analysis tools via the Model Context Protocol (MCP).

The Model Context Protocol (MCP) is a protocol for AI model integration, allowing AI models to access external tools and data sources.

Components

Tools

Transaction Analysis

  • Trace
    • Trace the different calls of a transaction on a blockchain along with gas usage metrics
    • Parameters: `chainId` (required), `transactionHash` (required)
  • Profile
    • Profile a transaction on a blockchain with details about the transaction, flow of funds and token information
    • Parameters: `chainId` (required), `transactionHash` (required)
  • AddressLabel
    • Get human readable labels for contract addresses like tokens, protocols, and other on-chain entities
    • Parameters: `chainId` (required), `transactionHash` (required)
  • BalanceChange
    • Retrieve detailed balance change information for a transaction
    • Parameters: `chainId` (required), `transactionHash` (required)
  • StateChange
    • Retrieve detailed information about state changes like storage variables in contracts for a transaction
    • Parameters: `chainId` (required), `transactionHash` (required)
  • TransactionOverview
    • Comprehensive overview of a transaction by aggregating data from all available analysis tools
    • Parameters: `chainId` (required), `transactionHash` (required)

Chain Information

  • GetChainIdByName
    • Get the chain ID for a blockchain by name, chain, or chainSlug
    • Parameters: `name` (required)

Getting Started

Installation

Using Go Install

bash
go install github.com/mark3labs/phalcon-mcp@latest

Usage

Start the MCP server:

bash
phalcon-mcp serve

Check the version:

bash
phalcon-mcp version

Using as a Package

You can import the server in your Go projects:

Stdio Mode

go
import "github.com/mark3labs/phalcon-mcp/server"

func main() {
    // Create a new server with version
    s := server.NewServer("1.0.0")
    
    // Start the server in stdio mode
    if err := s.ServeStdio(); err != nil {
        log.Fatalf("Server error: %v", err)
    }
}

In-Process Mode

For in-process usage with the mcp-go client library:

go
import (
    "context"
    "log"
    
    "github.com/mark3labs/mcp-go/client"
    "github.com/mark3labs/mcp-go/client/transport"
    "github.com/mark3labs/phalcon-mcp/server"
)

func main() {
    // Create the Phalcon MCP server
    phalconServer := server.NewServer("1.0.0")

    // Create an in-process transport using the server's MCPServer
    inProcessTransport := transport.NewInProcessTransport(phalconServer.GetMCPServer())

    // Create an MCP client using the in-process transport
    mcpClient := client.NewMCPClient(inProcessTransport)

    // Start the transport
    ctx := context.Background()
    if err := mcpClient.Connect(ctx); err != nil {
        log.Fatalf("Failed to connect: %v", err)
    }
    defer mcpClient.Close()

    // Initialize the client
    if err := mcpClient.Initialize(ctx); err != nil {
        log.Fatalf("Failed to initialize: %v", err)
    }

    // List available tools
    tools, err := mcpClient.ListTools(ctx)
    if err != nil {
        log.Fatalf("Failed to list tools: %v", err)
    }

    // Use the tools...
    result, err := mcpClient.CallTool(ctx, "get-chain-id-by-name", map[string]any{
        "name": "ethereum",
    })
    if err != nil {
        log.Fatalf("Failed to call tool: %v", err)
    }
}

Usage with Model Context Protocol

To integrate this server with apps that support MCP:

json
{
  "mcpServers": {
    "phalcon": {
      "command": "phalcon-mcp",
      "args": ["serve"]
    }
  }
}

Docker

Running with Docker

You can run the Phalcon MCP server using Docker:

bash
docker run -i --rm ghcr.io/mark3labs/phalcon-mcp:latest serve

Docker Configuration with MCP

To integrate the Docker image with apps that support MCP:

json
{
  "mcpServers": {
    "phalcon": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "ghcr.io/mark3labs/phalcon-mcp:latest",
        "serve"
      ]
    }
  }
}

License

MIT

Frequently asked questions

What is phalcon-mcp?

phalcon-mcp is MCP server that integrates with the BlockSec https://blocksec.com platform to provide blockchain transaction analysis.

How do I install phalcon-mcp?

Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.

Is phalcon-mcp open source?

Yes — it is hosted on GitHub at https://github.com/mark3labs/phalcon-mcp and has 8 stars.

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