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io.github.NotHarshhaa/mainframe-mcp-server vs io.github.buildkite/buildkite-mcp-server

io.github.NotHarshhaa/mainframe-mcp-server is an MCP server published by NotHarshhaa. Marketplaces we read that list it: 1 (Official MCP Registry). io.github.buildkite/buildkite-mcp-server is an MCP server published by buildkite. Marketplaces we read that list it: 2 (Official MCP Registry, Docker MCP Catalog). As of our marketplace pass on 2026-10-27. 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
Marketplaceio.github.NotHarshhaa/mainframe-mcp-serverio.github.buildkite/buildkite-mcp-server
Official MCP Registry Listed
Version: 3.0.0
Downloads/month (npm): 989
Downloads/week (npm): 140
Forks (GitHub): 0
Stars (GitHub): 0
Not marked · First seen 		Listed
Version: 0.7.0
Forks (GitHub): 39
Stars (GitHub): 56
Not marked · First seen
Docker MCP Catalog Not listed Listed
Version: sha256:00e13d1742a5
Forks (GitHub): 39
Pulls (Docker Hub): 13 515
Stars (Docker Hub): 0
Stars (GitHub): 56
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

io.github.NotHarshhaa/mainframe-mcp-server vs io.github.buildkite/buildkite-mcp-server
Factio.github.NotHarshhaa/mainframe-mcp-serverio.github.buildkite/buildkite-mcp-server
Marketplaces that list it (differs)1 (worse)2 (better)
Stars (GitHub) (differs)0 (worse)56 (better)
Pulls (Docker Hub) (differs)No figure on Docker Hub13 515
Forks (GitHub) (differs)0 (worse)39 (better)
Last release (differs)2026-10-25Not published
Where it runs (differs)On your machine (@notharshhaa/mainframe-mcp-server)On your machine (ghcr.io/buildkite/buildkite-mcp-server:0.7.0)
Transportstdiostdio
Tools it declares (differs)Not published24
Environment variables it asks for (differs)50, secrets among them: 21, secrets among them: 1
Licence (differs)Not statedMIT
Repository (differs)github.com/notharshhaa/mainframe-mcp-servergithub.com/buildkite/buildkite-mcp-server
Changes in the last 7 days (differs)30
First seen2026-10-112026-10-11

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

io.github.NotHarshhaa/mainframe-mcp-server

In its own words, on Official MCP Registry:

MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.

io.github.buildkite/buildkite-mcp-server

In its own words, on Official MCP Registry:

MCP server exposing Buildkite API data (pipelines, builds, jobs, tests) to AI tooling and editors.

How to run each

io.github.NotHarshhaa/mainframe-mcp-server As a local MCP server: npm package

Claude Code
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-server

Requires: ZOSMF_HOST, ZOSMF_PASSWORD (secret), ZOSMF_TOKEN (secret)

io.github.buildkite/buildkite-mcp-server As a local MCP server: Docker image

Claude Code
claude mcp add --env "BUILDKITE_API_TOKEN=<YOUR_BUILDKITE_API_TOKEN>" --transport stdio buildkite-mcp-server -- docker run -i --rm -e BUILDKITE_API_TOKEN run BUILDKITE_API_TOKEN ghcr.io/buildkite/buildkite-mcp-server:0.7.0 ghcr.io/buildkite/buildkite-mcp-server:0.7.0

Requires: BUILDKITE_API_TOKEN (secret)

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

Tools each declares

The marketplaces of io.github.NotHarshhaa/mainframe-mcp-server publish no list of tools, so we do not compare tools.

Settings each asks for

Only io.github.NotHarshhaa/mainframe-mcp-server asks for

  • CMCI_BASE_PATH
  • CMCI_CONTEXT
  • CMCI_HOST
  • CMCI_PORT
  • DB2_BASE_PATH
  • DB2_HOST
  • DB2_LOCATION
  • DB2_PORT
  • LOG_LEVEL
  • MAX_AUDIT_LINES
  • MAX_DATASET_READ_LINES
  • MAX_JES_SPOOL_FILES
Show the remaining 38
  • MAX_JOB_OUTPUT_LINES
  • MCP_SSE_PORT
  • MCP_TRANSPORT
  • RACF_AUDIT_DATASET
  • RACF_AUDIT_USS_PATH
  • RMF_METRICS_ENABLED
  • SECURITY_ALLOWED_DATASET_PATTERNS
  • SECURITY_ALLOWED_TOOLS
  • SECURITY_ALLOWED_USS_PATHS
  • SECURITY_AUDIT_LOGGING
  • SECURITY_BLOCKED_JOB_CLASSES
  • SECURITY_BLOCKED_PROGRAMS
  • SECURITY_BLOCKED_TOOLS
  • SECURITY_CHANGE_TICKET_PATTERN
  • SECURITY_JCL_SCAN
  • SECURITY_JCL_SCAN_STRICT
  • SECURITY_MAX_JCL_BYTES
  • SECURITY_READ_ONLY
  • SECURITY_WRITE_APPROVAL
  • SECURITY_WRITE_DAYS
  • SECURITY_WRITE_WINDOW
  • SECURITY_WRITE_WINDOW_TZ
  • SMF_SUMMARY_DATASET
  • ZOSMF_BASE_PATH
  • ZOSMF_CERT
  • ZOSMF_CERT_KEY
  • ZOSMF_HOST
  • ZOSMF_PASSTICKET_APP
  • ZOSMF_PASSWORD (secret)
  • ZOSMF_PORT
  • ZOSMF_PROFILE
  • ZOSMF_REJECT_UNAUTHORIZED
  • ZOSMF_TOKEN (secret)
  • ZOSMF_TOKEN_FILE
  • ZOSMF_TOKEN_TYPE
  • ZOSMF_USER
  • ZOSMF_USER_ID
  • ZOWE_TEAM_CONFIG

Only io.github.buildkite/buildkite-mcp-server asks for

  • BUILDKITE_API_TOKEN (secret)

Settings as each marketplace publishes them. Asking for fewer is not better in itself.

What it can do: io.github.NotHarshhaa/mainframe-mcp-server · What it can do: io.github.buildkite/buildkite-mcp-server · Compare two other plugins

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Data comes from the Docker MCP Catalog (desktop.docker.com/mcp/catalog) and Docker Hub. 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