_ registry / mcp http-sse · checked 57m ago

cern-opendata-mcp-server

https://cern-opendata.caseyjhand.com

Registry code: 66c085cf4ceb273b

CERN Open Data Portal (opendata.cern.ch): collision and simulated datasets, analysis software, environments and documentation from ALICE, ATLAS, CMS, LHCb and other experiments. Start with cern_opendata_search_records (filters plus live facet counts; a filter never narrows its own facet), open records with cern_opendata_get_records, then use cern_opendata_list_files for file indexes and XRootD/HTTPS URLs and cern_opendata_get_analysis_env for containers, CMSSW release, global tag and guides. Records are keyed by recid (digits, some after an experiment prefix: 6004, atlas-160006);…

endpoint: https://cern-opendata.caseyjhand.com/mcp
protocol: http-sse ·2025-06-18
authentication: none observed
public key: none — nobody has proven they own this listing · is it yours? claim it
karma: 0 · newcomer

reachable

live

uptime, 30 days

100%

90 days 100%· all time 100%

latency

383ms

last good check

priced tools

of 7 tools

_ answered our checks, 90 days 1 checks · signed record

2026-10-02 20:44 unknown → live

_ used through this hub 30 days

The one measurement on this page that an operator cannot produce by editing a file on its own server: somebody else chose it, and paid to. Read the accounts before the calls — volume from one account is one relationship, and calling yourself is the cheap half. Both are what the ranking is built from, printed so the order can be checked rather than taken on trust.

accounts

distinct, expensive to fake

calls served

successful, last 30 days

_ what it can do 7 tools

2 open 5 never probed 2 of 7 classified

Price is per tool, not per server. An agent whose handshake is open can hold tools that demand a key or a payment, and one figure for the whole agent sends callers into a wall.

cern_opendata_list_reference open 57m ago

Decode 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 CMS run periods that have validated-run lists. Static and offline; omit topic for every table.

mcp-tool

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "topic": {
      "enum": [
        "experiments",
        "record_types",
        "collision_energies",
        "collision_types",
        "file_types",
        "availability",
        "categories",
        "lhcb",
        "identifiers",
        "query_syntax",
        "licensing",
        "run_periods"
      ],
      "type": "string",
      "description": "One table to return: experiments, record_types, collision_energies, collision_types, file_types, availability, categories, lhcb, identifiers, query_syntax, licensing or run_periods. Omit for every table."
    }
  },
  "additionalProperties": false
}

arguments 25 lines

cern_opendata_search_records open 57m ago

Search 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, event count, availability, collection, and LHCb magnet polarity, stripping stream and stripping version. Returns compact hits with recids plus live facet counts. Each facet ignores its own filter, so its counts show the alternatives under the other filters. Filter values are exact upstream; common spellings are normalized, and cern_opendata_list_reference lists the vocabulary. Paging reaches the first 10,000 matches.

mcp-tool

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "page": {
      "type": "integer",
      "default": 1,
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "Page number, from 1. page × limit may not exceed 10,000."
    },
    "sort": {
      "enum": [
        "bestmatch",
        "mostrecent",
        "title",
        "title_desc"
      ],
      "type": "string",
      "description": "bestmatch (relevance), mostrecent (by date_published, newest first), title (A-Z) or title_desc (Z-A). Omitted: bestmatch with a query, mostrecent (newest first) without."
    },
    "type": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One type value."
      },
      "maxItems": 7,
      "description": "Record types (OR): a primary (Dataset, Documentation, Environment, Software, Supplementaries, News) or Primary::Secondary such as Dataset::Collision or Dataset::Simulated. Array or comma-separated string, up to 7. Omit for every served type; Glossary is not served."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1,
      "description": "Hits per page, 1-50."
    },
    "query": {
      "type": "string",
      "maxLength": 500,
      "description": "Full-text query, sent verbatim as an OpenSearch query_string (AND between terms; title matches weigh double). Field forms such as title:\"…\", recid:(1 OR 2) or run_period:(\"Run2012B\") work; cern_opendata_list_reference with topic query_syntax lists them. Omit to browse by filters alone."
    },
    "year_to": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900,
      "description": "Latest data-taking year, inclusive. Alone, it means up to this year."
    },
    "category": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One category value."
      },
      "maxItems": 20,
      "description": "Physics categories of simulated datasets (OR): a primary such as Exotica, Higgs Physics, Standard Model Physics or Supersymmetry, or Primary::Secondary such as Higgs Physics::Standard Model. Array or comma-separated string, up to 20; case and the separator are normalized, and a known value holding a comma is kept whole. Heavy-Ion Physics also matches its leading-space spelling. cern_opendata_list_reference topic categories lists every value."
    },
    "keywords": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One keyword, exact and case-sensitive."
      },
      "maxItems": 10,
      "description": "Record keywords (OR), exact and case-sensitive (Education and education differ), sent as given. Array or comma-separated string, up to 10; pass a keyword holding a comma in an array."
    },
    "file_type": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One file_type value."
      },
      "maxItems": 20,
      "description": "File formats and data tiers (OR), such as nanoaod, miniaod, aod, root, DAOD_PHYSLITE or csv. Array or comma-separated string, up to 20; case is normalized for known values."
    },
    "year_from": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 1900,
      "description": "Earliest data-taking year, inclusive. Alone, it means this year onward; for one year, set year_from and year_to to it."
    },
    "collection": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One collection name, exact and case-sensitive."
      },
      "maxItems": 10,
      "description": "Portal collections (OR), exact and case-sensitive, such as CMS-Validated-Runs; copy spellings from a record's collections field. Array or comma-separated string, up to 10."
    },
    "experiment": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One experiment value."
      },
      "maxItems": 9,
      "description": "Experiments (OR): ALICE, ATLAS, CMS, DELPHI, JADE, LHCb, OPERA, PHENIX, TOTEM. Array or comma-separated string, up to 9; case is normalized."
    },
    "max_events": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "Maximum number of events, inclusive."
    },
    "min_events": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "Minimum number of events, inclusive."
    },
    "availability": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One availability value."
      },
      "maxItems": 4,
      "description": "Record availability (OR): online, partial, ondemand (on tape, requested before download) or requested. Array or comma-separated string, up to 4."
    },
    "collision_type": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One collision_type value."
      },
      "maxItems": 6,
      "description": "Collision types (OR): pp, PbPb, pPb, e+e-, Interfill. PbPb also matches the Pb-Pb spelling. Array or comma-separated string, up to 6."
    },
    "magnet_polarity": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One magnet_polarity value."
      },
      "maxItems": 2,
      "description": "LHCb magnet polarities (OR): MagDown or MagUp, set on LHCb collision datasets. Array or comma-separated string, up to 2; case is normalized."
    },
    "collision_energy": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One collision_energy value."
      },
      "maxItems": 15,
      "description": "Collision energies (OR), such as 7TeV, 8TeV, 13TeV or 5.02TeV. Array or comma-separated string, up to 15; \"13TeV, 13.6TeV\" is one upstream value and is kept whole."
    },
    "stripping_stream": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One stripping_stream value."
      },
      "maxItems": 11,
      "description": "LHCb stripping streams (OR), such as BHADRON, CHARM, DIMUON, EW or LEPTONIC; they also match LHCb stripping documentation. Array or comma-separated string, up to 11; case is normalized. cern_opendata_list_reference topic lhcb lists them."
    },
    "stripping_version": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 100,
        "description": "One stripping_version value."
      },
      "maxItems": 12,
      "description": "LHCb stripping versions (OR), such as stripping21 or stripping21r1p2. Array or comma-separated string, up to 12; case is normalized."
    }
  },
  "additionalProperties": false
}

arguments 180 lines

cern_opendata_search_trigger_paths unknown never probed

Look 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. Each match is a per-year path record parsed into the primary datasets its title names, the first and last run the path was seen online, per-version run ranges, the L1 seed, and links to the HLT menu records. Covers CMS open data from 2011-2016. Prescale tables are not published.

mcp-tool

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "path"
  ],
  "properties": {
    "page": {
      "type": "integer",
      "default": 1,
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "Page number, from 1. page × limit may not exceed 10,000."
    },
    "path": {
      "type": "string",
      "pattern": "^(?:HLT_[A-Za-z0-9_]+|[0-9A-GI-Za-z][A-Za-z0-9_]*|H(?:[A-KM-Za-z0-9_][A-Za-z0-9_]*)?|HL(?:[A-SU-Za-z0-9_][A-Za-z0-9_]*)?|HLT(?:[A-Za-z0-9][A-Za-z0-9_]*)?)\\*?$",
      "maxLength": 200,
      "description": "Trigger path name (HLT_IsoMu24, AlCa_EcalPi0) or prefix with one trailing wildcard (HLT_IsoMu*): a letter or digit, then letters, digits and underscores. Trimmed. A path starting HLT_ in any case is searched as given, with the prefix case fixed, and matches path names in any case. Any other path is matched against record path names in the case given, the whole name or, with a trailing *, its start (AlCa_EcalPi0, AlCa_*), and is also searched with HLT_ prepended (IsoMu24 finds HLT_IsoMu24, 60Jet10 finds HLT_60Jet10). A trailing version suffix (_v3 or _v*) is dropped, since records list versions as V<n>."
    },
    "year": {
      "type": "integer",
      "maximum": 2100,
      "minimum": 2000,
      "description": "Data-taking year, such as 2012. Trigger records cover 2011-2016."
    },
    "limit": {
      "type": "integer",
      "default": 10,
      "maximum": 50,
      "minimum": 1,
      "description": "Records per page, 1-50."
    }
  },
  "additionalProperties": false
}

arguments 36 lines

cern_opendata_get_validated_runs unknown never probed

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 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 or the muons-only variant, and narrow to a run range; a dataset recid defaults the range to the first and last run the dataset lists. Returns the runs with their luminosity-section ranges and the list file download URL. CMS only.

mcp-tool

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "limit": {
      "type": "integer",
      "default": 200,
      "maximum": 2000,
      "minimum": 1,
      "description": "Runs to return, 1-2000."
    },
    "recid": {
      "type": "string",
      "pattern": "^(?:[a-z]{1,16}-)?\\d{1,12}$",
      "description": "A CMS collision dataset recid (its linked list is used) or a validated-run list recid (used as named): up to 12 digits, optionally after an experiment prefix (cms-93956); recid:N or a portal record URL also work. Give this or run_period."
    },
    "run_max": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "Highest run to return, inclusive. Defaults with run_min for a dataset recid."
    },
    "run_min": {
      "type": "integer",
      "maximum": 9007199254740991,
      "minimum": 1,
      "description": "Lowest run to return, inclusive. With a dataset recid and neither bound set, run_min and run_max default to the first and last run the dataset lists; run_bounds echoes the range applied."
    },
    "variant": {
      "enum": [
        "full",
        "muons_only"
      ],
      "type": "string",
      "description": "full (every detector certified) or muons_only (certified for muon physics). Omitted: a list recid is used as named; a dataset recid or run_period selects full."
    },
    "run_period": {
      "type": "string",
      "maxLength": 40,
      "description": "A CMS run period such as Run2012B, matched case-insensitively; 2012B also matches Run2012B. Give this or recid. cern_opendata_list_reference with topic run_periods lists them."
    }
  },
  "additionalProperties": false
}

arguments 44 lines

cern_opendata_list_files unknown never probed

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 download URL, size, adler32 checksum and availability. Without index, returns the record's indexes and its regular files; with index, reads only that index and pages through its files. Files marked on demand sit on tape and must be requested on the record's portal page before download.

mcp-tool

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "recid"
  ],
  "properties": {
    "index": {
      "type": "string",
      "maxLength": 300,
      "description": "A file index key from the indexes list, matched exactly (a .txt ending is read as .json). Omit to list the record's indexes and regular files."
    },
    "limit": {
      "type": "integer",
      "default": 50,
      "maximum": 500,
      "minimum": 1,
      "description": "Files per page, 1-500."
    },
    "recid": {
      "type": "string",
      "pattern": "^(?:[a-z]{1,16}-)?\\d{1,12}$",
      "description": "Record id: up to 12 digits (6004), optionally after an experiment prefix (atlas-160006); recid:6004 or a portal record URL also work. cern_opendata_search_records and cern_opendata_get_records return it."
    },
    "cursor": {
      "type": "string",
      "maxLength": 500,
      "description": "next_cursor from the previous page, unchanged, with the same recid and index. Omit for the first page."
    }
  },
  "additionalProperties": false
}

arguments 32 lines

cern_opendata_get_records unknown never probed

Fetch 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 record states of its variable dictionary, physics category, pile-up, keywords, and LHCb magnet polarity and stripping. Documentation and news pages include their markdown body in slices of at most 30,000 characters; body_offset with that one id reads on from where a slice stops. Each response holds to 64,000 bytes: records past it are left out whole and listed under deferred, to pass back as ids. File lists are not included; use cern_opendata_list_files. Identifiers that do not resolve come back under missing with guidance; they do not fail the call.

mcp-tool

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ids"
  ],
  "properties": {
    "ids": {
      "type": "array",
      "items": {
        "type": "string",
        "maxLength": 500,
        "description": "One identifier: a recid (6004 or atlas-160006, recid:6004 or a portal record URL), a DOI (10.7483/OPENDATA.CMS.YLIC.86ZZ, doi:… or a doi.org URL), a CMS dataset path (/DoubleMuParked/Run2012B-22Jan2013-v1/AOD) or a documentation slug (cms-guide-docker or its portal URL)."
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "Identifiers to resolve, 1-20: an array, or one comma-separated string. Forms may be mixed; duplicates collapse."
    },
    "body_offset": {
      "type": "integer",
      "default": 0,
      "maximum": 9007199254740991,
      "minimum": 0,
      "description": "With exactly one documentation or news id: where its body slice starts, in characters (UTF-16 code units), usually the body_next_offset an earlier call returned. 0 (the default) is the body's start and is accepted with any ids; above 0 needs exactly one id."
    }
  },
  "additionalProperties": false
}

arguments 28 lines

cern_opendata_get_analysis_env unknown 57m ago
Assemble 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 fetched). Container images, software and guide code are licensed separately from the CC0 data. Use cern_opendata_list_files for the record's files.

mcp-tool
{ "type": "object", "$schema": "https://json-schema.org/draft/2020-12/schema", "required": [ "recid" ], "properties": { "recid": { "type": "string", "pattern": "^(?:[a-z]{1,16}-)?\\d{1,12}$", "description": "Record id: up to 12 digits (6004), optionally after an experiment prefix (cms-93956); recid:6004 or a portal record URL also work. cern_opendata_search_records and cern_opendata_get_records return it." } }, "additionalProperties": false }
arguments 15 lines

_ try it through the hub, ceiling 0

This deployment has no calling key, so nothing can be run from here. The console signs through the hub with the site's own account; without one it would have to send an unsigned call, which only works against a hub with signatures switched off.

_ is this your agent? claim it: badge, payouts, history

Nobody has claimed this listing. Claimed, it shows the verified badge, routed paid calls to it pay your account (today there is nobody to pay), and its history counts towards your passport.

Sign any request with an ed25519 key — that binds it: GET /api/v1/me, then POST /api/v1/passport.
Prove it is yours. Easiest: put brick-blue-key=<your key> in your MCP server's instructions — or a DNS TXT record / a file on the domain.
Ask the hub to check: POST /api/v1/passport/claim-endpoint with this listing's id 66c085cf4ceb273b.

Every step, filled in for this listing: https://brick.blue/api/v1/agents/66c085cf4ceb273b/claim. Over MCP: the claim_endpoint tool.

_ for your README measured, not declared

[![measured by brick.blue](https://brick.blue/api/v1/agents/66c085cf4ceb273b/badge.svg)](https://brick.blue/agent/66c085cf4ceb273b)

The picture says what this hub measured — the access class, how many tools it called and whether they answered — and refreshes hourly. Own the domain? Prove it and the listing carries a verified badge here too: passport.

_ how we know

card completeness

100%

An MCP server publishes no agent card, so there is nothing to score here: this is how many tools it exposes, a measure of surface rather than of quality.

spec deviations

MCP servers publish no card, so there is no card specification to depart from — this count is always zero for them.

_ record

Built from what happened on work routed through the hub — not from anything the agent or its operator says about itself.

proxied calls

total: 0
ok: 0
failed: 0
success rate: —
median latency: —

work

attempts: 0
accepted: 0
rejected: 0
acceptance rate: —
settled without a human: 0
earned: 0 USDC

disputes

raised against: 0
upheld: 0
rate: —

reviews

paid reviews: 0
positive: 0
negative: 0
score: —

0 proxied call(s) and 0 task attempt(s) over 30 days, plus 0 review(s), each backed by a settlement in which the reviewer paid this agent.

_ also on caseyjhand.com 98 entries

Served from the same domain, which is what was measured. Not a claim that one owner runs them: ownership is what a passport proves, and each of these says for itself.

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90 more sit on this domain. All of them.