Terraform MCP Server by Binadox

MCP server for Terraform — automatically validates, secures, and estimates cloud costs for Terraform configurations. Developed by Binadox, it integrates with any Model Context Protocol (MCP) client (e.g. Claude Desktop or other MCP-compatible AI assistants).

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Table of Contents

• Overview
• Features
• Compatibility & Requirements
• Installation
• Usage
• Examples
• Security & Privacy
• API Requirements
• Documentation
• License

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Overview

The Binadox Terraform MCP Server is an MCP (Model Context Protocol) server that helps large language models (LLMs) safely generate Terraform infrastructure code with built-in cost estimation and security checks before deployment.

It acts as a bridge between your AI assistant and Terraform: when your LLM needs to produce or modify cloud infrastructure code, this server augments the AI’s response with structured tooling (validation, linting, security analysis, cost data) instead of relying solely on the model’s guesses. This ensures the Terraform configuration you get is more complete, secure, and cost-aware from the start.

Learn more about how to manage Terraform-driven infrastructure with our tool here: Binadox IaC Cost Tracker.

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Features

• Code validation & completion – Processes Terraform snippets and fills in missing parts (providers, versions, variables) for a runnable configuration.
• Security analysis – Detects common misconfigurations and insecure defaults (open ports, missing encryption, etc.) in the generated code.
• Cost estimation – Computes a monthly cloud cost breakdown for the proposed resources using real pricing data.
• File organization – Organizes output into logical Terraform files/modules (e.g. groups resources into modules, adds terraform.tfvars if needed).
• Easy integration – Works with any MCP-compatible client (tested with Claude Desktop) for seamless use in your AI-driven workflow.

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Compatibility & Requirements

Component	Supported / Tested Version
Go	1.22+
Terraform CLI	1.6+
Clouds	AWS (full: cost + checks), Azure & GCP (cost only, checks in roadmap)
MCP Clients	Claude Desktop (tested), other MCP-compatible clients

Prerequisites

• Go toolchain (if building from source)
• Terraform CLI 1.6+ installed
• Valid Binadox API token
• Internet access to Binadox pricing API
• Write access to /tmp/terraform/...

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Installation

To install binadox-terraform-mcp, clone the repository and build the binary with Go. Then, add the executable path to your Claude Desktop configuration file claude_desktop_config.json under the mcpServers section, including your Binadox API URL and token. Finally, restart Claude Desktop to apply the changes and start using the Terraform MCP server.

1. Clone and build:

git clone https://github.com/binadox/binadox-terraform-mcp
cd binadox-terraform-mcp
go build -o terraform-mcp-server *.go

2. Configure your MCP client (example: Claude Desktop)

# Add to Claude Desktop config
# macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
# Windows: %APPDATA%\Claude\claude_desktop_config.json
{
  "mcpServers": {
    "terraform": {
      "command": "/path/to/terraform-mcp-server",
      "env": {
        "TERRAFORM_ANALYSIS_URL": "https://app.binadox.com/api/1/organizations/pricing/terraform/mcp",
        "TERRAFORM_ANALYSIS_TOKEN": "your-token"
      }
    }
  }
}

3. Restart your MCP client to apply the configuration.

Usage

No additional CLI commands are required. Once installed and configured, the server operates behind the scenes to:

• Validate and complete Terraform code via prepare_terraform
• Analyze for misconfigurations via analyze_terraform
• Estimate cloud costs via calculate_cost

All output files are written to /tmp/terraform/<timestamp> and zipped if needed.

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Examples

Cost Overrun Prevention

User: Generate terraform for a simple demo environment

Cost Analysis: $1,847/month
- m5.2xlarge instances
- Multi-AZ RDS
- NAT Gateways in 3 AZs

Security Misconfiguration Detection

User: Create an RDS database with a security group

Security Analysis:
- 0.0.0.0/0 open access
- No encryption at rest
- 1-day backup retention

Completing Incomplete Configurations

User: Add resource "aws_s3_bucket" "data" { bucket = "my-data" }

Without MCP: Fails – no provider block  
With MCP: Adds provider, variables, and metadata – configuration runs

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Security & Privacy

The server runs locally and does not access cloud credentials.

• Files are saved under /tmp/terraform/ and are not sent externally.
• Only cost data is requested remotely using your Binadox token.
• No telemetry or analytics are collected.

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API Requirements

Cost analysis requires a Binadox API token. Binadox provides real-time cloud pricing data across AWS, Azure, and GCP. Get your token at Binadox.

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Documentation

• Architecture - Technical deep dive
• Examples - Common prompts and patterns
• Testing - Test scenarios
• Deployment - Production setup

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License

Apache 2.0