io.github.vidyutsaha1210/mainframekit
MainframeKit
Is the MainframeKit MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-02.
Mainframe help, no mainframe needed: check JCL and DFSORT, explain abends, lay out copybooks.
alive probed 2026-11-14 · unchanged since 2026-11-02
- Run it
- npx -y mainframekit-mcp@0.1.3 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mainframekit 0.1.3
- Capabilities
- prompts, tools
- Instructions
- 311 characters
- Of a 1M window
- <0.1 % of a 1M context window
- Count
- 827 tokens in Claude Opus 5.5, exact, measured 2026-10-31. With the Claude Code prefix mcp__…__ on each tool name: 867. The o200k_base estimate is 489. Counted again when the tool definitions change. Method.
- Website
- https://mainframekit.com/ai/
- Registry
- active, updated 2026-11-01 · registry entry
Most expensive tools
The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.69×.
| Tool | ≈ Claude tokens | o200k estimate | Share of this server |
|---|---|---|---|
| lookup_code | 262 | 155 | 32 % |
| copybook_layout | 198 | 117 | 24 % |
| check_jcl | 189 | 112 | 23 % |
| explain_dfsort | 178 | 105 | 21 % |
Compare this server with others.
More servers
Other registry entries on npmjs.com, the ones next to this name; all of them.
- VibeView io.github.vibeview/vibeview · alive
- Spill io.github.vicc/spill · alive
- io.github.videreo/collabsmap · crashed on start
- DWIN Research Adoption io.github.vidvinianinov/dwin-research-adoption · alive
- io.github.vighriday/veris · crashed on start
- io.github.vigneshRN52/demo-mcp-server · crashed on start
- Invoice Studio io.github.vijayst/invoice-studio · alive
- Aletheia Runtime Safety & Scope Creep Filter io.github.vikasny30/aletheia-mcp · alive
Servers that mention copybooks or mainframe.
- Bankday io.github.ParsingMAINFRAME/bankday · needs auth
- io.github.NotHarshhaa/mainframe-mcp-server · needs env
- io.github.ExpertVagabond/ibmz · alive
- io.github.CSOAI-ORG/cics-bridge-mcp · needs mcp<2
Badge for the README
The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.
A mail when this server changes
Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.
For the publisher
- The server answers initialize and tools/list. Nothing to fix.