localstack vs AWS Builder
localstack is a plugin bundle for AI coding tools published by localstack. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). AWS Builder is an MCP server published by Evozim. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-13. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  localstack | |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.0.0 Forks (GitHub): 0 Stars (GitHub): 16 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 1.0.0 No figure published Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | localstack | AWS Builder |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 16 | No figure on GitHub |
| Forks (GitHub) (differs) | 0 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (aws-builder-mcp.vercel.app/api/mcp) |
| Transport (differs) | Not stated | SSE |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | 6 | Not a bundle |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | github.com/localstack/skills | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | not checked yet |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
localstack
Claude gains skills for the full LocalStack development workflow — managing the local AWS environment, deploying infrastructure with Terraform/CDK/CloudFormation, debugging failures through log analysis, testing IAM policies before they reach production, saving and restoring environment state, and managing extensions.
AWS Builder
AWS CloudFormation and Terraform infrastructure blueprint builder.
How to run each
localstack As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install localstack@claude-communityAWS Builder As a remote MCP server
claude mcp add --transport sse aws-builder https://aws-builder-mcp.vercel.app/api/mcp --header "payment-signature: <YOUR_PAYMENT_SIGNATURE>"Requires: payment-signature header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: localstack · What it can do: AWS Builder · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.