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aws-calculator-mcp

by Musheer360
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JavaScript
Remote

aws-calculator-mcp

npm version License: MIT

MCP server for AWS Pricing Calculator. Create cost estimates through natural language, get shareable links, retrieve actual AWS-calculated costs.

  • 436 services, 72 regions

  • Real pricing via headless Chrome (not approximations)

  • Savings Plans, Reserved Instances, all pricing models

  • No AWS credentials required

Install

Add to your MCP client config:

{
  "mcpServers": {
    "aws-calculator": {
      "command": "npx",
      "args": ["-y", "aws-calculator-mcp@latest"]
    }
  }
}

Client

Config file

Kiro

~/.kiro/settings/mcp.json

Claude Desktop (macOS)

~/Library/Application Support/Claude/claude_desktop_config.json

Claude Desktop (Windows)

%APPDATA%\Claude\claude_desktop_config.json

Cursor

.cursor/mcp.json

VS Code

.vscode/mcp.json

Requires Node.js ≥ 18. Chrome optional (only for cost retrieval).

Related MCP server: AWS FinOps MCP Server

What it does

You ask your AI assistant to estimate AWS costs. The MCP handles the rest:

  1. Searches the AWS service catalog

  2. Looks up valid configuration fields

  3. Builds the estimate incrementally

  4. Exports to calculator.aws (shareable link)

  5. Opens the link in headless Chrome to get actual calculated costs

The pricing is identical to calculator.aws because it is calculator.aws doing the math.

Tools

Tool

Purpose

search_services

Find services by keyword

get_service_fields

Get valid config fields for a service

create_estimate

Start a new estimate

add_service

Add configured services

update_service

Modify a service in-place

export_estimate

Get a shareable calculator.aws URL

refresh_estimate

Get actual costs via headless Chrome

generate_report

Per-service cost breakdown (CSV/Markdown)

import_estimate

Download an existing estimate

Example

"Estimate a production stack in us-west-2: 2x c5.xlarge EC2 with Savings Plan, Lambda at 20M requests, S3 500GB, CloudFront 1TB"

→ Returns a calculator.aws link + $333.92/mo breakdown by service.

How it works

Your prompt → Agent configures services → MCP packages payload → calculator.aws saves it
                                                                → Chrome opens it → scrapes real costs

No local price calculations. No hardcoded rates. The AWS calculator frontend computes everything.

Requirements

  • Node.js ≥ 18

  • Chrome (optional) — for refresh_estimate and generate_report. Install with npx puppeteer browsers install chrome or use system Chrome.

License

MIT

This server cannot be deployed

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Maintenance

ActivityInactive
ResponsivenessUnresponsive

Resources

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