mainframe-mcp

Provides safe, structured access to an IBM z/OS mainframe through natural language in Claude Code, enabling screen reading, dataset browsing, code editing, job submission, and regression testing.

→ sagar25k/mainframe-mcp · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configMAINFRAME_MODE— mainframe-write — loaded only when =WRITE is set. Modifies PDS members, submits jobs, deletes things. All operations gated by safety rules.

configMAINFRAME_CONFIG— Path to config.yaml No (defaults to ./config.yaml)

configMAINFRAME_LOG_LEVEL

configMAINFRAME_HOST— Override mainframe.host No

configMAINFRAME_USERID— RACF userid for this session Yes

configMAINFRAME_DEBUG

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 1 concrete improvement we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/sagar25k-mainframe-mcp-1om5th)](https://m8ven.ai/mcp/sagar25k-mainframe-mcp-1om5th)

commit: 93678302874526f77f70a26ded535411eb1635d3

code hash: f16a40b5af394a0e7bdbd52f6bdfe6f3bae3645bb5d720d164c88f5f9830e090

verified: 6/19/2026, 10:48:58 AM

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