Mainframe
MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.
Power your agent
Add this server
The publisher's own command. Not a PlugMCP endpoint.
Local command
npx -y @notharshhaa/[email protected]
Credentials from the publisher
- ZOSMF_HOST — z/OSMF hostname or IP address
- ZOSMF_PORT — z/OSMF HTTPS port (default 443)
- ZOSMF_BASE_PATH — Optional API gateway or mediation layer prefix for z/OSMF
- ZOSMF_USER — z/OS user id (required with ZOSMF_PASSWORD unless ZOSMF_TOKEN is set)
- ZOSMF_PASSWORD — Password for basic auth (required with ZOSMF_USER unless ZOSMF_TOKEN is set)
- ZOSMF_TOKEN — Auth token (alternative to user/password)
- ZOSMF_TOKEN_TYPE — Token type when using ZOSMF_TOKEN (e.g. LTPA2)
- ZOSMF_REJECT_UNAUTHORIZED — Verify TLS certificates (true in production)
- LOG_LEVEL — Log level: fatal, error, warn, info, debug, trace, silent
- MCP_TRANSPORT — Transport: stdio (IDE) or sse (container/network)
- MCP_SSE_PORT — Listen port when MCP_TRANSPORT=sse
- MAX_JOB_OUTPUT_LINES — Max lines returned from a single spool DD
- MAX_DATASET_READ_LINES — Max lines returned from dataset or USS reads
- MAX_JES_SPOOL_FILES — Max spool files fetched during diagnostics
- MAX_AUDIT_LINES — Max RACF audit log lines per query
- CMCI_CONTEXT — CICSplex name or region APPLID (required for CICS tools)
- CMCI_HOST — CMCI hostname (defaults to ZOSMF_HOST)
- CMCI_PORT — CMCI HTTPS port (default 1490)
- CMCI_BASE_PATH — CMCI REST base path
- DB2_LOCATION — Db2 subsystem location name (required for Db2 tools)
- DB2_HOST — Db2 REST hostname (defaults to ZOSMF_HOST)
- DB2_PORT — Db2 REST port (default 50400)
- DB2_BASE_PATH — Db2 REST base path
- SMF_SUMMARY_DATASET — Optional SMF summary dataset for offline metrics
- RMF_METRICS_ENABLED — Query z/OSMF RMF metrics when available
- RACF_AUDIT_USS_PATH — USS path to RACF audit log file
- RACF_AUDIT_DATASET — Sequential dataset containing RACF audit records
- SECURITY_READ_ONLY — When true, blocks write tools such as submit_jcl
- SECURITY_ALLOWED_TOOLS — Comma-separated allowlist of MCP tool names
- SECURITY_BLOCKED_TOOLS — Comma-separated blocklist of MCP tool names
- SECURITY_ALLOWED_DATASET_PATTERNS — Comma-separated dataset patterns (e.g. USERDEV.*,SYS1.*)
- SECURITY_ALLOWED_USS_PATHS — Comma-separated USS path prefixes
- SECURITY_AUDIT_LOGGING — Log every tool invocation to stderr (SIEM-friendly JSON)
- SECURITY_MAX_JCL_BYTES — Maximum inline JCL size for submit_jcl
Provider
Claude Code
ZOSMF_HOST=<value> ZOSMF_PORT=<value> ZOSMF_BASE_PATH=<value> ZOSMF_USER=<value> ZOSMF_PASSWORD=<secret> ZOSMF_TOKEN=<secret> ZOSMF_TOKEN_TYPE=<value> ZOSMF_REJECT_UNAUTHORIZED=<value> LOG_LEVEL=<value> MCP_TRANSPORT=<value> MCP_SSE_PORT=<value> MAX_JOB_OUTPUT_LINES=<value> MAX_DATASET_READ_LINES=<value> MAX_JES_SPOOL_FILES=<value> MAX_AUDIT_LINES=<value> CMCI_CONTEXT=<value> CMCI_HOST=<value> CMCI_PORT=<value> CMCI_BASE_PATH=<value> DB2_LOCATION=<value> DB2_HOST=<value> DB2_PORT=<value> DB2_BASE_PATH=<value> SMF_SUMMARY_DATASET=<value> RMF_METRICS_ENABLED=<value> RACF_AUDIT_USS_PATH=<value> RACF_AUDIT_DATASET=<value> SECURITY_READ_ONLY=<value> SECURITY_ALLOWED_TOOLS=<value> SECURITY_BLOCKED_TOOLS=<value> SECURITY_ALLOWED_DATASET_PATTERNS=<value> SECURITY_ALLOWED_USS_PATHS=<value> SECURITY_AUDIT_LOGGING=<value> SECURITY_MAX_JCL_BYTES=<value> claude mcp add io.github.notharshhaa-mainframe-mcp-server -- npx -y @notharshhaa/[email protected]
Run in a terminal.
Claude Desktop
{
"mcpServers": {
"io.github.notharshhaa-mainframe-mcp-server": {
"command": "npx",
"args": [
"-y",
"@notharshhaa/[email protected]"
],
"env": {
"ZOSMF_HOST": "<value>",
"ZOSMF_PORT": "<value>",
"ZOSMF_BASE_PATH": "<value>",
"ZOSMF_USER": "<value>",
"ZOSMF_PASSWORD": "<secret>",
"ZOSMF_TOKEN": "<secret>",
"ZOSMF_TOKEN_TYPE": "<value>",
"ZOSMF_REJECT_UNAUTHORIZED": "<value>",
"LOG_LEVEL": "<value>",
"MCP_TRANSPORT": "<value>",
"MCP_SSE_PORT": "<value>",
"MAX_JOB_OUTPUT_LINES": "<value>",
"MAX_DATASET_READ_LINES": "<value>",
"MAX_JES_SPOOL_FILES": "<value>",
"MAX_AUDIT_LINES": "<value>",
"CMCI_CONTEXT": "<value>",
"CMCI_HOST": "<value>",
"CMCI_PORT": "<value>",
"CMCI_BASE_PATH": "<value>",
"DB2_LOCATION": "<value>",
"DB2_HOST": "<value>",
"DB2_PORT": "<value>",
"DB2_BASE_PATH": "<value>",
"SMF_SUMMARY_DATASET": "<value>",
"RMF_METRICS_ENABLED": "<value>",
"RACF_AUDIT_USS_PATH": "<value>",
"RACF_AUDIT_DATASET": "<value>",
"SECURITY_READ_ONLY": "<value>",
"SECURITY_ALLOWED_TOOLS": "<value>",
"SECURITY_BLOCKED_TOOLS": "<value>",
"SECURITY_ALLOWED_DATASET_PATTERNS": "<value>",
"SECURITY_ALLOWED_USS_PATHS": "<value>",
"SECURITY_AUDIT_LOGGING": "<value>",
"SECURITY_MAX_JCL_BYTES": "<value>"
}
}
}
}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
Host a copy with our keys and logs.
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
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Questions
- How do I install Mainframe?
- Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
- Does Mainframe need an API key?
- The publisher lists these environment variables: ZOSMF_HOST, ZOSMF_PORT, ZOSMF_BASE_PATH, ZOSMF_USER, ZOSMF_PASSWORD, ZOSMF_TOKEN, ZOSMF_TOKEN_TYPE, ZOSMF_REJECT_UNAUTHORIZED, LOG_LEVEL, MCP_TRANSPORT, MCP_SSE_PORT, MAX_JOB_OUTPUT_LINES, MAX_DATASET_READ_LINES, MAX_JES_SPOOL_FILES, MAX_AUDIT_LINES, CMCI_CONTEXT, CMCI_HOST, CMCI_PORT, CMCI_BASE_PATH, DB2_LOCATION, DB2_HOST, DB2_PORT, DB2_BASE_PATH, SMF_SUMMARY_DATASET, RMF_METRICS_ENABLED, RACF_AUDIT_USS_PATH, RACF_AUDIT_DATASET, SECURITY_READ_ONLY, SECURITY_ALLOWED_TOOLS, SECURITY_BLOCKED_TOOLS, SECURITY_ALLOWED_DATASET_PATTERNS, SECURITY_ALLOWED_USS_PATHS, SECURITY_AUDIT_LOGGING, SECURITY_MAX_JCL_BYTES.
- What transport does Mainframe use?
- Mainframe runs locally over stdio.
- When was Mainframe last checked?
- Last checked 2026-10-16. MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.
MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.
README is not crawled yet. Open the repository
- How do I install Mainframe?
- Copy the stdio config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
- Does Mainframe need an API key?
- The publisher lists these environment variables: ZOSMF_HOST, ZOSMF_PORT, ZOSMF_BASE_PATH, ZOSMF_USER, ZOSMF_PASSWORD, ZOSMF_TOKEN, ZOSMF_TOKEN_TYPE, ZOSMF_REJECT_UNAUTHORIZED, LOG_LEVEL, MCP_TRANSPORT, MCP_SSE_PORT, MAX_JOB_OUTPUT_LINES, MAX_DATASET_READ_LINES, MAX_JES_SPOOL_FILES, MAX_AUDIT_LINES, CMCI_CONTEXT, CMCI_HOST, CMCI_PORT, CMCI_BASE_PATH, DB2_LOCATION, DB2_HOST, DB2_PORT, DB2_BASE_PATH, SMF_SUMMARY_DATASET, RMF_METRICS_ENABLED, RACF_AUDIT_USS_PATH, RACF_AUDIT_DATASET, SECURITY_READ_ONLY, SECURITY_ALLOWED_TOOLS, SECURITY_BLOCKED_TOOLS, SECURITY_ALLOWED_DATASET_PATTERNS, SECURITY_ALLOWED_USS_PATHS, SECURITY_AUDIT_LOGGING, SECURITY_MAX_JCL_BYTES.
- What transport does Mainframe use?
- Mainframe runs locally over stdio.
- When was Mainframe last checked?
- Last checked 2026-10-16. MCP server for IBM z/OS jobs, datasets, USS, and operational diagnostics via Zowe SDK.
No tool list yet. Remote servers get one after the first health check.