OpenAPI Schema vs Postman MCP Server
OpenAPI Schema is an MCP server published by hannesj. Marketplaces we read that list it: 1 (Docker MCP Catalog). Postman MCP Server is an MCP server published by postman.com. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-15. 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 |   Postman MCP Server |
|---|---|---|
| Docker MCP Catalog | Listed Version: sha256:5da1c1870748 Forks (GitHub): 14 Pulls (Docker Hub): 31 782 Stars (Docker Hub): 7 Stars (GitHub): 49 Not marked · First seen |
Listed Version: sha256:73f715030cbe Forks (GitHub): 87 Pulls (Docker Hub): 45 194 Stars (Docker Hub): 6 Stars (GitHub): 317 Not marked · First seen |
| Official MCP Registry | Not listed | Listed Version: 2.13.0 Downloads/month (npm): 31 219 Downloads/week (npm): 4 519 Forks (GitHub): 87 Stars (GitHub): 317 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 | Postman MCP Server |
|---|---|---|
| Marketplaces that list it (differs) | 1 (worse) | 2 (better) |
| Stars (GitHub) (differs) | 49 (worse) | 317 (better) |
| Pulls (Docker Hub) (differs) | 31 782 (worse) | 45 194 (better) |
| Forks (GitHub) (differs) | 14 (worse) | 87 (better) |
| 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, stdio |
| Tools it declares (differs) | 10 | 42 |
| Environment variables it asks for (differs) | Not published | 1, secrets among them: 1 |
| Licence (differs) | Not stated | Apache-2.0 |
| Repository (differs) | github.com/hannesj/mcp-openapi-schema | github.com/postmanlabs/postman-mcp-server |
| 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
OpenAPI Schema
OpenAPI Schema Model Context Protocol Server.
Postman MCP Server
Give your AI agents trusted access to the full Postman platform.
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-schemaPostman MCP Server As a remote MCP server
claude mcp add --transport http postman-mcp-server https://mcp.postman.com/mcp --header "Authorization: Bearer <YOUR_TOKEN>"Requires: POSTMAN_API_KEY (secret), Authorization header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Tools each declares
Only OpenAPI Schema declares
get-componentget-endpointget-examplesget-path-parametersget-request-bodyget-response-schemalist-componentslist-endpointslist-security-schemessearch-schema
Only Postman MCP Server declares
createCollectioncreateCollectionRequestcreateCollectionResponsecreateEnvironmentcreateMockcreateSpeccreateSpecFilecreateWorkspaceduplicateCollectiongenerateCollectiongenerateSpecFromCollectiongetAllSpecs
Show the remaining 30
getAuthenticatedUsergetCollectiongetCollectionsgetDuplicateCollectionTaskStatusgetEnabledToolsgetEnvironmentgetEnvironmentsgetGeneratedCollectionSpecsgetMockgetMocksgetSpecgetSpecCollectionsgetSpecDefinitiongetSpecFilegetSpecFilesgetTaggedEntitiesgetWorkspacegetWorkspacespublishMockputCollectionputEnvironmentrunCollectionsearchPostmanElementssyncCollectionWithSpecsyncSpecWithCollectionupdateCollectionRequestupdateMockupdateSpecFileupdateSpecPropertiesupdateWorkspace
Both declare
None
Tool names as each marketplace publishes them. More tools is not better in itself: compare what each needs for the job.
Settings each asks for
The marketplaces of OpenAPI Schema publish no settings it asks for, so we do not compare settings.
What it can do: OpenAPI Schema · What it can do: Postman MCP Server · 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.