zopen-mcp-server
A Go-based Model Context Protocol (MCP) server that exposes a set of `zopen` command-line operations (list/query/install/remove/upgrade/info/version) as MCP tools. It supports stdio-based local execution (run tools on the same machine) and an optional remote mode that uses SSH to run `zopen` against a target z/OS system.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Security model emphasizes isolation via stdio (no network port) for local mode and uses SSH for remote execution, inheriting the SSH user’s permissions. However, the README does not describe authentication/authorization for MCP access (stdio path), least-privilege guidance, host key verification settings, audit logging, or secret-handling practices for the provided SSH key.
⚡ Reliability
Best When
You have an MCP-capable client and want AI/agent tooling to drive zopen package management on local or authorized remote z/OS systems.
Avoid When
You need an HTTP API (REST/GraphQL/gRPC), automated idempotent retries with explicit guidance, or documented rate-limit semantics for programmatic clients.
Use Cases
- • Integrate `zopen` package management capabilities into any MCP-compatible AI agent or tool runner
- • Automate z/OS zopen community package listing, querying, installation, removal, upgrades, and metadata lookup from an MCP client
- • Provide a controlled interface to zopen operations in local stdio deployments or via SSH to remote z/OS hosts
Not For
- • Public-facing network services (it is designed for stdio/MCP or outbound SSH, not as an internet-exposed API)
- • Unattended operations without appropriate SSH credentials and permission scoping
- • Use cases requiring REST/HTTP/Webhooks integration or fine-grained API authorization models
Interface
Authentication
No explicit user/session auth is described for the MCP/stdio path; remote mode relies on the SSH user/key provided at launch.
Pricing
Agent Metadata
Known Gotchas
- ⚠ Remote mode executes `zopen` as the permissions of the configured SSH user; the agent may unintentionally install/upgrade/remove packages if prompts are not constrained.
- ⚠ No pagination/rate-limit guidance is provided in the README; agents should avoid assuming stable pagination or throttling semantics.
- ⚠ The README lists available tools but does not document tool input/output schemas, required parameters, or structured error codes, so robust automation may require inspecting the MCP server/tool definitions at runtime.
Alternatives
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Scores are editorial opinions as of 2026-04-04.