Rube vs io.github.NotHarshhaa/mainframe-mcp-server
Rube is an MCP server published by docker. Marketplaces we read that list it: 1 (Docker MCP Catalog). io.github.NotHarshhaa/mainframe-mcp-server is an MCP server published by NotHarshhaa. Marketplaces we read that list it: 1 (Official MCP Registry). 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 | ||
|---|---|---|
| Docker MCP Catalog | Listed Version: not stated No figure published Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 2.5.0 Downloads/month (npm): 168 Downloads/week (npm): 36 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 | Rube | io.github.NotHarshhaa/mainframe-mcp-server |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Last release | Not published | Not published |
| Where it runs (differs) | Remote server (rube.app/mcp) | On your machine (@notharshhaa/mainframe-mcp-server) |
| Transport (differs) | Streamable HTTP | stdio |
| Tools it declares | Not published | Not published |
| Environment variables it asks for (differs) | 1, secrets among them: 1 | 34, secrets among them: 2 |
| Licence (differs) | Apache-2.0 | Not stated |
| Repository (differs) | Not stated | github.com/notharshhaa/mainframe-mcp-server |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | Not responding since 2026-10-14 | no remote endpoint we check |
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
Rube
Access to Rube's catalog of remote MCP servers.
io.github.NotHarshhaa/mainframe-mcp-server
MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.
How to run each
Rube As a remote MCP server
claude mcp add --transport http rube https://rube.app/mcpRequires: RUBE_API_KEY (secret)
io.github.NotHarshhaa/mainframe-mcp-server As a local MCP server: npm package
claude mcp add --env "ZOSMF_HOST=<YOUR_ZOSMF_HOST>" --env "ZOSMF_PASSWORD=<YOUR_ZOSMF_PASSWORD>" --env "ZOSMF_TOKEN=<YOUR_ZOSMF_TOKEN>" --transport stdio mainframe-mcp-server -- npx -y @notharshhaa/mainframe-mcp-serverRequires: ZOSMF_HOST, ZOSMF_PASSWORD (secret), ZOSMF_TOKEN (secret)
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Rube has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Only Rube asks for
RUBE_API_KEY (secret)
Only io.github.NotHarshhaa/mainframe-mcp-server asks for
CMCI_BASE_PATHCMCI_CONTEXTCMCI_HOSTCMCI_PORTDB2_BASE_PATHDB2_HOSTDB2_LOCATIONDB2_PORTLOG_LEVELMAX_AUDIT_LINESMAX_DATASET_READ_LINESMAX_JES_SPOOL_FILES
Show the remaining 22
MAX_JOB_OUTPUT_LINESMCP_SSE_PORTMCP_TRANSPORTRACF_AUDIT_DATASETRACF_AUDIT_USS_PATHRMF_METRICS_ENABLEDSECURITY_ALLOWED_DATASET_PATTERNSSECURITY_ALLOWED_TOOLSSECURITY_ALLOWED_USS_PATHSSECURITY_AUDIT_LOGGINGSECURITY_BLOCKED_TOOLSSECURITY_MAX_JCL_BYTESSECURITY_READ_ONLYSMF_SUMMARY_DATASETZOSMF_BASE_PATHZOSMF_HOSTZOSMF_PASSWORD (secret)ZOSMF_PORTZOSMF_REJECT_UNAUTHORIZEDZOSMF_TOKEN (secret)ZOSMF_TOKEN_TYPEZOSMF_USER
Settings as each marketplace publishes them. Asking for fewer is not better in itself.
What it can do: Rube · What it can do: io.github.NotHarshhaa/mainframe-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.