Search CERN Open Data, fetch records, files, analysis environments, CMS good-run lists, HLT paths. Connect the official Cern Opendata MCP Server MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http cern-opendata-mcp-server https://cern-opendata.caseyjhand.com/mcpRun in your terminal, then restart Claude Code.
Cern Opendata MCP Server · https://cern-opendata.caseyjhand.com/mcp
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “cern_opendata_search_records”: Search the CERN Open Data Portal's datasets, software, environments, documentation and supplementary records with exact-vocabulary filters a.”
“Use “cern_opendata_get_records”: Fetch full metadata for 1-20 records in one call, by recid, DOI, CMS dataset path (/Primary/Era/TIER) or documentation slug. Returns the des.”
“Use “cern_opendata_list_files”: List one record's files: its file indexes (groups of up to ~1,500 files) with their XRootD URI-list URLs, and per file the XRootD URI, HTTPS.”
“Use “cern_opendata_get_analysis_env”: Assemble what is needed to analyse a record: its container images, CMSSW release and global tag; the condition-data, VM and validated-run re.”
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Cern Opendata MCP Server holds up.
Operated by Cern Opendata MCP Server (caseyjhand.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
This server only exposes public data — no account and no credentials are involved when you connect.
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
If Cern Opendata MCP Server adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Choose Cern Opendata MCP Server in the gate directory. No sign-in needed.
Cern Opendata MCP Server's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
cern_opendata_search_records — Search the CERN Open Data Portal's datasets, software, environments, documentation and supplementary records with exact-vocabulary filters a
cern_opendata_get_records — Fetch full metadata for 1-20 records in one call, by recid, DOI, CMS dataset path (/Primary/Era/TIER) or documentation slug. Returns the des
cern_opendata_list_files — List one record's files: its file indexes (groups of up to ~1,500 files) with their XRootD URI-list URLs, and per file the XRootD URI, HTTPS
cern_opendata_get_analysis_env — Assemble what is needed to analyse a record: its container images, CMSSW release and global tag; the condition-data, VM and validated-run re
cern_opendata_get_validated_runs — Get a CMS validated-run (good-run) list, which certifies the luminosity sections that are good for physics in each run. Select it by a CMS c
cern_opendata_search_trigger_paths — Look up CMS High-Level Trigger paths by exact name (HLT_IsoMu24) or prefix pattern (HLT_IsoMu*), optionally for one data-taking year. Paths
cern_opendata_list_reference — Decode the vocabulary the other cern_opendata tools accept: experiments, record types, collision energies and types, file formats and data t
https://cern-opendata.caseyjhand.com/mcpYes — Cern Opendata MCP Server operates its own remote MCP server at cern-opendata.caseyjhand.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
Add gate's gateway URL to your AI client once, then pick Cern Opendata MCP Server in the directory. No account or sign-in is needed. From then on, Cern Opendata MCP Server's tools are available in every client you've connected to gate.
No. Cern Opendata MCP Server runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Yes — you can get started with gate for free and connect Cern Opendata MCP Server in minutes. No credit card required.
Every server below works through the same gateway URL — connect once, add tools anytime.
Set up Cern Opendata MCP Server in: Claude · Claude Code · ChatGPT · Cursor · VS Code
One URL. All MCPs. Full control. Free to start.
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