Do I need an API key to use this MCP?

No, the CERN Open Data Portal is a public service and does not require an API key.

Which AI clients can I use with this?

You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.

Can I find specific files for a dataset?

Yes, you can use the capability to list all files in a record, including their size and direct URIs.

How much data is available through this MCP?

The MCP provides access to over 66,000 datasets from experiments like the LHC and LEP.

Can I resolve a DOI to a dataset?

Yes, you can provide a DOI to find the specific CERN Open Data record it refers to.

Do I need an API key to use this server?

No. The CERN Open Data Portal API is completely public and requires no authentication. Simply subscribe to this server and enter any placeholder value in the API key field to start querying particle physics datasets immediately.

What kind of data can I access from CERN?

You can access over 66,000 datasets from major LHC experiments (CMS, ATLAS, ALICE, LHCb) and legacy experiments (DELPHI, OPERA). This includes real collision data, Monte Carlo simulations, derived datasets, analysis software, physics glossary entries, and detailed documentation. Data covers Higgs boson searches, Dark Matter studies, exotic particle searches, heavy-ion physics, and more.

Can I use CERN data for machine learning projects?

Absolutely. CERN provides labeled datasets specifically designed for ML applications, including particle identification, jet classification, event reconstruction, and anomaly detection. Use the search capabilities with queries like 'machine learning' or filter by file type 'csv' or 'nanoaodsim' to find ML-ready formats. The CMS experiment alone has published thousands of simulated datasets with known physics labels.

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Connect CERN Open Data to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Bring the world's largest particle physics repository to your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 16 capabilities

We ship only the actions that matter.

Capability set01 / 04

01-04

4 capabilities in this set.

Part of 16 available through CERN Open Data.

01
Check cern opendata status
This capability checks the connection to the CERN Open Data API to ensure everything is running correctly.
02
Get glossary
This capability searches the CERN particle physics glossary to provide definitions for technical terms like luminosity or pseudorapidity.
03
Get portal statistics
This capability retrieves high-level statistics about the entire CERN Open Data portal, including dataset counts and event distributions.
04
Get record
This capability pulls complete metadata for a specific record, including abstracts, authors, and collision parameters.

Capability set02 / 04

05-08

4 capabilities in this set.

Part of 16 available through CERN Open Data.

05
Get record by doi
This capability resolves a specific DOI to find the corresponding CERN Open Data record.
06
List categories
This capability lists all available physics research categories and the number of datasets in each.
07
List experiments
This capability provides a list of all CERN experiments, such as CMS or ATLAS, and their respective dataset counts.
08
List record files
This capability lists the specific files within a dataset, providing sizes and direct URIs for data access.

Capability set03 / 04

09-12

4 capabilities in this set.

Part of 16 available through CERN Open Data.

09
Search by category
This capability filters the dataset repository by specific physics research topics like Higgs boson or Dark Matter.
10
Search by collision energy
This capability allows you to find datasets based on specific collision energies, such as 13 TeV or 7 TeV.
11
Search by collision type
This capability narrows down datasets by the type of particle collision, such as proton-proton or electron-positron.
12
Search datasets
This capability performs full-text searches across the repository using various filters like experiment or year.

Capability set04 / 04

13-16

4 capabilities in this set.

Part of 16 available through CERN Open Data.

13
Search documentation
This capability searches through CERN guides, policies, and technical documentation.
14
Search software
This capability finds analysis frameworks, reconstruction software, and specific capabilities used in physics research.
15
Search supplementaries
This capability locates technical supplementary materials and configurations needed to reproduce physics analyses.
16
Search by experiment
This capability quickly scopes your search to a single experiment like CMS, ATLAS, or ALICE.

Real work

What teams actually run

Machine Learning Training

Find specific proton-proton collision datasets to train anomaly detection models.

Research Reproduction

Locate the exact software and supplementary configurations used in a published paper.

Educational Support

Use the physics glossary to quickly define technical terms for students.

Data Scoping

Check the number of available datasets in an experiment like CMS before starting a new project.

Automate a task

Put CERN Open Data to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

CERN Open Data works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put CERN Open Data to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 16 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of CERN Open Data, so you can see the experience inside your AI.

It does not authenticate your account with CERN Open Data. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

CERN Open Data Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_6c8vQb5D0ezH2BgoO0uep3ryrQC6NBo9IIKIfkWa/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — CERN Open Data capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "cern-open-data-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_6c8vQb5D0ezH2BgoO0uep3ryrQC6NBo9IIKIfkWa/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up CERN Open Data in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work CERN Open Data owners hand off.

This MCP is built for researchers and educators working with high-energy physics data.

01
Particle Physicists
They use the agent to find collision datasets and reconstruction configurations without using web interfaces.
02
ML Researchers
They use the agent to find labeled datasets for training models in particle identification and anomaly detection.
03
Science Communicators
They use the agent to pull real data from landmark discoveries like the Higgs boson for accurate reporting.

FAQ

Questions CERN Open Data owners ask.

01
Do I need an API key to use this MCP?
No, the CERN Open Data Portal is a public service and does not require an API key.
02
Which AI clients can I use with this?
You can use this MCP with any compatible client, including Claude, Cursor, and Windsurf.
03
Can I find specific files for a dataset?
Yes, you can use the capability to list all files in a record, including their size and direct URIs.
04
How much data is available through this MCP?
The MCP provides access to over 66,000 datasets from experiments like the LHC and LEP.
05
Can I resolve a DOI to a dataset?
Yes, you can provide a DOI to find the specific CERN Open Data record it refers to.
06
Do I need an API key to use this server?
No. The CERN Open Data Portal API is completely public and requires no authentication. Simply subscribe to this server and enter any placeholder value in the API key field to start querying particle physics datasets immediately.
07
What kind of data can I access from CERN?
You can access over 66,000 datasets from major LHC experiments (CMS, ATLAS, ALICE, LHCb) and legacy experiments (DELPHI, OPERA). This includes real collision data, Monte Carlo simulations, derived datasets, analysis software, physics glossary entries, and detailed documentation. Data covers Higgs boson searches, Dark Matter studies, exotic particle searches, heavy-ion physics, and more.
08
Can I use CERN data for machine learning projects?
Absolutely. CERN provides labeled datasets specifically designed for ML applications, including particle identification, jet classification, event reconstruction, and anomaly detection. Use the search capabilities with queries like 'machine learning' or filter by file type 'csv' or 'nanoaodsim' to find ML-ready formats. The CMS experiment alone has published thousands of simulated datasets with known physics labels.

Explore

More in The Unthinkable

Connect CERN Open Data to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Check cern opendata status

Get glossary

Get portal statistics

Get record

05-08

Get record by doi

List categories

List experiments

List record files

09-12

Search by category

Search by collision energy

Search by collision type

Search datasets

13-16

Search documentation

Search software

Search supplementaries

Search by experiment

What teams actually run

Machine Learning Training

Research Reproduction

Educational Support

Data Scoping

Building your own app? The connector is yours to use.

CERN Open Data Connector

Claude Desktop

Particle Physicists

ML Researchers

Science Communicators

Do I need an API key to use this MCP?

Which AI clients can I use with this?

Can I find specific files for a dataset?

How much data is available through this MCP?

Can I resolve a DOI to a dataset?

Do I need an API key to use this server?

What kind of data can I access from CERN?

Can I use CERN data for machine learning projects?

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