cern-opendata-mcp-server

Status

Newest check: answered with tools, from the daily check, 2026-10-03, 508 ms.

From one check a day over the last 1 day. Servers whose owner verified them are checked every 5 minutes. Sign-in and payment answers count as up.

Last 30 days

2026-09-042026-10-03

answered with toolssign-in or payment askednot answeringnot checked

Compare: the most reliable servers in Data, search and analytics, ranked by days answering.

Tools

7 tools: 7 read-only, 0 change data, 0 high risk (delete, pay, send or run code).

read-only

Only reads or looks things up. Safe for an agent to call on its own.

changes data

Creates, edits or sends something. Worth a person's approval the first time.

high risk

Can delete, pay, send on your behalf or run code. Hard or impossible to undo.

Connecting costs an agent about 19,650 tokens of tool definitions and a 508 ms handshake.

• read-onlycern_opendata_search_recordsSearch the CERN Open Data Portal's datasets, software, environments, documentation and supplementary records with exact-vocabulary filters and an optional full-text query. The filters are experiment, record type, physics category, keyword, collision energy and type, file format, data-taking year,...
• read-onlycern_opendata_get_recordsFetch full metadata for 1-20 records in one call, by recid, DOI, CMS dataset path (/Primary/Era/TIER) or documentation slug. Returns the description, run periods, collision and distribution details, related records, a software-environment summary, the license and a ready citation, plus what a rec...
• read-onlycern_opendata_list_filesList 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 download URL, size, adler32 checksum and availability. Without index, returns the record's indexes and its regular files; with index, reads only that index ...
• read-onlycern_opendata_get_analysis_envAssemble what is needed to analyse a record: its container images, CMSSW release and global tag; the condition-data, VM and validated-run records for its run periods; example software that declares it works with the record; and quoted sections of the guides the record links (the first two are fet...
• read-onlycern_opendata_get_validated_runsGet 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 collision dataset recid, a validated-run list recid, or a run period such as Run2012B (give exactly one of recid and run_period). Choose the full validation o...
• read-onlycern_opendata_search_trigger_pathsLook up CMS High-Level Trigger paths by exact name (HLT_IsoMu24) or prefix pattern (HLT_IsoMu*), optionally for one data-taking year. Paths outside the HLT_ family, such as AlCa_EcalPi0, DST_ and DQM_ paths, output modules and HLTriggerFinalPath, are found by their own names, in the case given. E...
• read-onlycern_opendata_list_referenceDecode the vocabulary the other cern_opendata tools accept: experiments, record types, collision energies and types, file formats and data tiers, availability states, physics categories, LHCb magnet polarities and stripping streams and versions, identifier forms, query syntax, licensing, and the ...

Levels are automated estimates from each tool's public name, description and annotations, and can be wrong. Descriptions as the server publishes them.

Badge

Live: status, days reachable, the tokens its tool list costs an agent. For a README:

[![7Maps](https://7it.co.il/7maps/badge/cern-opendata.caseyjhand.com/mcp.svg)](https://7it.co.il/7maps/s/cern-opendata.caseyjhand.com/mcp)

Other styles: add ?style=uptime (30-day uptime), ?style=stars (agents’ rating) or ?style=verified (owner mark) to the image address, or ?style=top (shows "top 10%" when the server ranks in the top tenth of its category by days answering; otherwise the standard badge).

Is this badge genuine? Anyone can check what a genuine badge for this server says right now: /7maps/verify/badge?server=cern-opendata.caseyjhand.com%2Fmcp (add the same &style= for another style).

Own this server? Verify that it is yours.

Status widget

A live status card for a status page, docs or a dashboard: current status, the 30-day strip, uptime and handshake time.

Script (renders where it is placed, in its own shadow DOM):

<script src="https://7it.co.il/7maps/widget/cern-opendata.caseyjhand.com/mcp.js" async></script>

Or an iframe:

<iframe src="https://7it.co.il/7maps/widget/cern-opendata.caseyjhand.com/mcp" title="7Maps status" width="360" height="176" style="border:0;max-width:100%" loading="lazy"></iframe>

The widget is drawn only from 7it.co.il. Is a status shown elsewhere genuine? Check it: /7maps/verify/badge?server=cern-opendata.caseyjhand.com%2Fmcp.

Add ?theme=light or ?theme=dark to either address (default: follows the visitor's setting). Refreshed every 5 minutes. Open the card · script.

For AI agents

Before connecting, an agent can ask 7Maps for this server's full condition, every tool's risk level and what changed since a person approved it: the road_conditions, watch and route tools on https://7it.co.il/7maps/mcp, paid per call in USDC via x402. About 7Maps.