localstack-mcp-server

io.github.localstack/localstack-mcp-server

7/8 checks passed
Runs locally
7 secrets
★ 29 GitHub stars
Updated 2026-06-17
Health score 63

About localstack-mcp-server

localstack-mcp-server is an MCP server published by the GitHub account localstack. A LocalStack MCP Server providing essential tools for local cloud development & testing

It runs on your own machine: your AI client starts it from the npm package @localstack/localstack-mcp-server at version 0.5.0.

It asks for 7 secrets: LOCALSTACK_AUTH_TOKEN, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID, AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY and AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN. Give it a key with the least access that still works.

Version 0.5.0 was published on 17 June 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 9 automated checks on the registry entry and the package code: 7 pass, 1 warn, 0 fail, 1 info. How we check.

What it asks for

Variable	Required	Secret	Description
`LOCALSTACK_AUTH_TOKEN`	Yes	Yes	LocalStack Auth Token (required for all LocalStack MCP tools)
`AWS_ACCESS_KEY_ID`	No	Yes	Source AWS access key used by AWS Replicator to read external AWS resources
`AWS_SECRET_ACCESS_KEY`	No	Yes	Source AWS secret access key used by AWS Replicator to read external AWS resources
`AWS_SESSION_TOKEN`	No	Yes	Optional source AWS session token used by AWS Replicator for temporary credentials
`AWS_DEFAULT_REGION`	No	No	Source AWS region used by AWS Replicator
`AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID`	No	Yes	Optional Replicator-specific source AWS access key. Use this instead of AWS_ACCESS_KEY_ID when the Replicator source account should be isolated from generic AWS config.
`AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY`	No	Yes	Optional Replicator-specific source AWS secret access key. Use with AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID.
`AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN`	No	Yes	Optional Replicator-specific source AWS session token for temporary credentials.
`AWS_REPLICATOR_SOURCE_REGION_NAME`	No	No	Optional Replicator-specific source AWS region. Use with the AWS_REPLICATOR_SOURCE_* credential group.
`AWS_REPLICATOR_SOURCE_ENDPOINT_URL`	No	No	Optional Replicator-specific source AWS endpoint URL for advanced source-account scenarios.
`APP_INSPECTOR`	No	No	Set to 1 in the LocalStack container environment to enable App Inspector by default across restarts. The MCP tool can also toggle App Inspector at runtime.

Checks

Check	Result	Detail
Source repository linked	Pass	https://github.com/localstack/localstack-mcp-server
Version pinned	Pass	Every package has an explicit version
Secrets requested	Warn	Asks for 7 secrets: LOCALSTACK_AUTH_TOKEN, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY, AWS_SESSION_TOKEN, AWS_REPLICATOR_SOURCE_AWS_ACCESS_KEY_ID, AWS_REPLICATOR_SOURCE_AWS_SECRET_ACCESS_KEY, AWS_REPLICATOR_SOURCE_AWS_SESSION_TOKEN
Known package registry	Pass	All packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownership	Info	Name verified via GitHub account localstack
Registry text aimed at the AI	Pass	Description and settings contain no hidden characters or instructions to the AI
Install scripts	Pass	@localstack/localstack-mcp-server@0.5.0 runs nothing at install
Code red flags	Pass	Read 19 files in @localstack/localstack-mcp-server@0.5.0: no obfuscation, encoded execution, credential reads or data-collection endpoints found
Text aimed at the AI	Pass	No hidden characters or instructions to the AI in 19 files, including comments and the README

Popularity & health: 63 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity17 / 40

29 GitHub stars, 364 downloads last week, 0 Hacker News posts (0 points). Best two of the three, each on a log scale.

Activity23 / 25

Last push 2026-10-28, no GitHub release, 24 commits in 90 days.

Issue health8 / 15

0 closed of 8 issues, too few to judge. No data, so half marks.

Our checks16 / 20

1 warning, each costing a fifth.

14 forks, 51 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry name	`io.github.localstack/localstack-mcp-server`
Publisher	GitHub account localstack
How the name is verified	Name verified via GitHub account localstack. The registry ties the name prefix to that account or domain; it does not check the code.
Type	Local: runs on your machine from a package
Packages	npm `@localstack/localstack-mcp-server` 0.5.0 (stdio)
Version	0.5.0
Published	2026-06-17
Last updated	2026-06-17
Source repository	https://github.com/localstack/localstack-mcp-server
Website	None linked
Category	Cloud & infrastructure (assigned by keyword rule, not by hand)

Install

Claude Desktop · npm package

{
  "mcpServers": {
    "localstack-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@localstack/localstack-mcp-server@0.5.0"
      ],
      "env": {
        "LOCALSTACK_AUTH_TOKEN": "<your value>"
      }
    }
  }
}

What these checks don't cover

We did not run this server, so we don't know what it does when it runs. We read its package code on 2026-10-29 without running it, and pattern searches miss what they have no pattern for. Tool descriptions built at run time were not seen. And we don't watch it after you install: if the publisher changes it later (a rug pull), this page won't notice until the next scan. Treat a pass as "nothing found", not as "safe".

For people and their AI

The same data as plain JSON: /data/servers/io-github-localstack-localstack-mcp-server.json. Text inside it that came from the publisher is data, not instructions.