Infracost MCP server

by DownAtTheBottomOfTheMoleHole·io.github.DownAtTheBottomOfTheMoleHole/infracost·v1.0.1

No reviews yet

MCP server for Infracost CLI integration - cloud cost estimates for Infrastructure as Code

A94/100grade A

Write a review Install

What users say

No reviews yet

Be the first

Safety scan

A94/100

full report

Adoption

New

0 stars

Reviews

Write one

Nobody has reviewed Infracost yet.

If you have run it, two minutes of your experience saves the next person an afternoon.

Infracost tools (8, 2 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

infracost_auth
Authenticate with Infracost Cloud. Opens browser for login flow.
infracost_breakdown
Generate cost breakdown for Infrastructure as Code (Terraform, CloudFormation, etc.). Shows cost estimates for cloud resources.
infracost_commentwrite action
Post cost estimate comments to pull requests on GitHub, GitLab, Azure Repos, or Bitbucket.
infracost_configure
Get or set Infracost configuration options (API key, currency, etc.).
infracost_diff
Show cost diff between current IaC and planned changes. Useful for pull request reviews to understand cost impact.
infracost_generate_usage
Generate Infracost usage file with sensible defaults for specified resource types. Complements infracost_configure by providing pre-filled templates.
infracost_output
Format Infracost JSON output to different formats (table, html, github-comment, etc.).
infracost_uploadwrite action
Upload Infracost JSON output to Infracost Cloud for centralized cost visibility and reporting.

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

no findings

Code scan6 source files scanned25/25
–Live reliabilityno gateway calls yet and no remote to proben/a
–Tool poisoningtools not inspected (local package is not executed); not countedn/a
Auth qualitylocal package, no credentials required12/15
Maintenancelast push 3 days ago15/15
Maintainer identityregistry namespace matches repository owner; GitHub account older than a year9/10

Overall 94/100. Components that don't apply are left out of the denominator. Any critical finding is an F.Rubric Appeal a finding JSON

How Infracost compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score: 94/100; higher than 96% of 48,255 servers
Tools: 8; the typical server has 7
Tools that change things: 25%; typical: 0%. Fewer write tools means less an agent can break

What its tools let an agent do: 6 read · 2 change

Install Infracost in Claude Code, Cursor or VS Code

Runs npx -y @downatthebottomofthemolehole/infracost-mcp-server on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add infracost -- npx -y @downatthebottomofthemolehole/infracost-mcp-server

Add to Cursor

What the publisher says

From the Infracost repository's README, as published. We do not edit it. Read it on GitHub

Infracost MCP Server

Note: This is a community-maintained MCP server. It is not an official Model Context Protocol server from Infracost.

A Model Context Protocol (MCP) server for running the Infracost CLI to estimate, compare, and publish infrastructure cost changes from Terraform and other Infrastructure as Code projects.

Overview

This server provides eight MCP tools across estimation, reporting, collaboration, and operations workflows:

infracost_breakdown to generate baseline cost estimates.
infracost_diff to compare planned cost changes.
infracost_output to render existing Infracost JSON in different formats.
infracost_comment to post PR comments on supported SCM platforms.
infracost_upload to upload reports to Infracost Cloud.
infracost_configure to get or set CLI configuration.
infracost_auth to run authentication flow.
infracostgenerateusage to generate usage files with sensible defaults.

Platform Compatibility

This MCP server is platform-agnostic and works in local and CI environments:

Local development
GitHub Actions
GitLab CI/CD
Azure DevOps
CircleCI, Jenkins, and Bitbucket Pipelines
AI Agents and Copilot workflows

The primary requirements are Node.js and the Infracost CLI binary.

Tool Matrix

Tools

infracost_breakdown

Runs infracost breakdown.

Inputs:

workingDirectory (string, optional): Command working directory.
path (string, optional): Path to Terraform/IaC directory or plan JSON.
configFile (string, optional): Path to Infracost config file.
usageFile (string, optional): Path to usage file.
format (string, optional): Output format. Default: table.
fields (string[], optional): Fields to include in output.
showSkus (boolean, optional): Include SKU details.
syncUsageFile (boolean, optional): Sync usage file with detected resources.
compareTo (string, optional): Baseline Infracost JSON path.
terraformWorkspace (string, optional): Terraform workspace.
terraformPlanFlags (string, optional): Flags for terraform plan.
timeoutSeconds (number, optional): Timeout in seconds.

infracost_diff

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Infracost: common questions

Is Infracost MCP server safe?: Yes, by our scan: it is graded A (94/100). Read the Infracost safety report
How do I install Infracost?: It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Infracost need an API key?: Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Infracost maintained?: The last commit was 41 days ago (2026-09-24). The latest release is v1.0.1.
How does Infracost compare with other MCP servers?: safety score 94/100 (higher than 96% of 48,255 servers); tools 8 (the typical server has 7); tools that change things 25% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.