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Effect vs codefmt

Effect is an MCP server published by tim-smart. Marketplaces we read that list it: 1 (Docker MCP Catalog). codefmt is an MCP server published by codefmt.dev. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-12. 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

Where each is published
MarketplaceEffectcodefmt
Docker MCP Catalog Listed
Version: sha256:a0e077abc890
Forks (GitHub): 13
Pulls (Docker Hub): 12 837
Stars (Docker Hub): 0
Stars (GitHub): 239
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

Effect vs codefmt
FactEffectcodefmt
Marketplaces that list it11
Stars (GitHub) (differs)239No figure on GitHub
Pulls (Docker Hub) (differs)12 837No figure on Docker Hub
Forks (GitHub) (differs)13No figure on GitHub
Last releaseNot publishedNot published
Where it runs (differs)On your machine (mcp/effect-mcp)Remote server (codefmt.dev/api/mcp)
Transport (differs)stdioStreamable HTTP
Tools it declares (differs)2Not published
Environment variables it asks forNot publishedNot published
Licence (differs)MITNot stated
Repository (differs)github.com/tim-smart/effect-mcpNot stated
Changes in the last 7 days00
First seen2026-10-112026-10-11
Endpoint at the last check (differs)no remote endpoint we checknot 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

Effect

In its own words, on Docker MCP Catalog:

Tools and resources for writing Effect code in Typescript.

codefmt

In its own words, on Official MCP Registry:

Format/lint JS, Python, HubL for automation platforms. Tools: format_code, format_json, ask_codefmt

How to run each

Effect As a local MCP server: Docker image

Claude Code
claude mcp add --transport stdio effect-mcp -- docker run -i --rm mcp/effect-mcp

codefmt As a remote MCP server

Claude Code
claude mcp add --transport http codefmt https://codefmt.dev/api/mcp

Commands built only from what the marketplaces declare; the full set for every client is on each card.

Tools each declares

The marketplaces of codefmt publish no list of tools, so we do not compare tools.

Settings each asks for

Neither one's marketplaces publish the settings it asks for.

What it can do: Effect · What it can do: codefmt · Compare two other plugins

Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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.

Where the data comes from: how the catalog is built