OpenAPI Schema vs Contentrain
OpenAPI Schema is an MCP server published by hannesj. Marketplaces we read that list it: 1 (Docker MCP Catalog). Contentrain is an MCP server published by Contentrain. Marketplaces we read that list it: 2 (Official MCP Registry, Community GitHub marketplaces). As of our marketplace pass on 2026-10-14. 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 |   OpenAPI Schema |  Contentrain |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:5da1c1870748 Forks (GitHub): 14 Pulls (Docker Hub): 31 759 Stars (Docker Hub): 7 Stars (GitHub): 49 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 3.11.1 Downloads/month (npm): 14 403 Downloads/week (npm): 3 344 Forks (GitHub): 0 Stars (GitHub): 6 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 | OpenAPI Schema | Contentrain |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 49 (better) | 6 (worse) |
| Pulls (Docker Hub) (differs) | 31 759 | No figure on Docker Hub |
| Forks (GitHub) (differs) | 14 (better) | 0 (worse) |
| Last release | Not published | Not published |
| Where it runs (differs) | On your machine (mcp/openapi-schema) | Remote server or your machine |
| Transport (differs) | stdio | Streamable HTTP |
| Tools it declares (differs) | 10 | Not published |
| Environment variables it asks for | Not published | Not published |
| Parts of the bundle (differs) | Not a bundle | 8 |
| Licence (differs) | Not stated | MIT |
| Repository (differs) | github.com/hannesj/mcp-openapi-schema | github.com/contentrain/ai |
| Changes in the last 7 days (differs) | 0 | 2 |
| 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
OpenAPI Schema
OpenAPI Schema Model Context Protocol Server.
Contentrain
Git-native content governance for AI agents — 27 deterministic MCP tools over stdio and HTTP.
How to run each
OpenAPI Schema As a local MCP server: Docker image
claude mcp add --transport stdio openapi-schema -- docker run -i --rm mcp/openapi-schemaContentrain As a Claude Code plugin
/plugin marketplace add contentrain/ai
/plugin install contentrain@contentrainRequires: Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
The marketplaces of Contentrain 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: OpenAPI Schema · What it can do: Contentrain · 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. Data comes from public marketplace files in GitHub repositories of their authors. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.