ChatGPT cisa cybersecurity mcp server cisa_list_reference
How to: ChatGPT cisa cybersecurity mcp server cisa_list_reference
Add cisa cybersecurity mcp server to ChatGPT
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01
Open Settings → Connectors → Advanced → Developer mode and merge this in. Keep any servers already there.
https://cisa-cybersecurity.caseyjhand.com/mcp-
02
Save the file and restart ChatGPT.
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03
Ask for something cisa_list_reference does. ChatGPT lists the server's tools on connect and calls cisa_list_reference itself — you do not invoke it by name.
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04
If nothing happens, check the server is running and that cisa cybersecurity mcp server's identifier in your config matches the one above exactly.
Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs
Set these first
cisa cybersecurity mcp server will not start until these are set, so cisa_list_reference never becomes available.
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CISA_CLAMP_OVERSIZED_INPUTS -
MCP_LOG_LEVEL -
CISA_KEV_REFRESH_CRON -
CISA_CSAF_MIRROR_PATH -
CISA_CSAF_MIRROR_AUTO_INIT -
CISA_CSAF_REFRESH_CRON -
CISA_VULNRICHMENT_CACHE_TTL_SECONDS -
CISA_FEED_CACHE_TTL_SECONDS -
CISA_HTTP_TIMEOUT_MS
Same tool, other clients
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.