How many datasets does the ONS have?

The ONS API currently exposes 337+ datasets covering economy, population, health, trade, business, census, well-being, and more. New datasets are added regularly as part of the ONS Beta programme.

What format does the data come in?

The API provides programmatic access to statistical observations in JSON format. It uses a hypermedia-driven architecture, nesting dimension links, options, and hierarchy information within the responses.

Is the API free to use?

Yes, the ONS Developer API is completely free and open, requiring no authentication or API keys, allowing developers unrestricted access to UK national statistics.

UK ONS Discovery — Search 337+ Statistical Datasets MCP Server for Claude Desktop 6 tools — connect in under 2 minutes

Name: UK ONS Discovery — Search 337+ Statistical Datasets
Availability: InStock
Author: Vinkius

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Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

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Classic Setup·json

{
  "mcpServers": {
    "uk-ons-discovery-search-337-statistical-datasets": {
      // Your Vinkius token — get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

UK ONS Discovery — Search 337+ Statistical Datasets

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* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

About UK ONS Discovery — Search 337+ Statistical Datasets MCP Server

Full access to the ONS dataset catalog with discovery and query tools.

Claude Desktop is the definitive way to connect UK ONS Discovery — Search 337+ Statistical Datasets to your AI workflow. Add the Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 6 tools in the chat interface — ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

What you can do

Search — Find datasets by keyword
Browse — Paginated catalog access
Metadata — Dataset details, methodology, contacts
Dimensions — Available filter variables
Options — Valid values for each dimension
Query — Flexible observations with dimension filters

The UK ONS Discovery — Search 337+ Statistical Datasets MCP Server exposes 6 tools through the Vinkius. Connect it to Claude Desktop in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect UK ONS Discovery — Search 337+ Statistical Datasets to Claude Desktop via MCP

Follow these steps to integrate the UK ONS Discovery — Search 337+ Statistical Datasets MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using UK ONS Discovery — Search 337+ Statistical Datasets

Look for the 🔌 icon in the chat — your 6 tools are now available

Why Use Claude Desktop with the UK ONS Discovery — Search 337+ Statistical Datasets MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with UK ONS Discovery — Search 337+ Statistical Datasets through the Model Context Protocol.

Claude Desktop is the reference MCP client — it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage — your tokens never leave your machine, and connections go directly to the Vinkius Edge network

UK ONS Discovery — Search 337+ Statistical Datasets + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the UK ONS Discovery — Search 337+ Statistical Datasets MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies — all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

UK ONS Discovery — Search 337+ Statistical Datasets MCP Tools for Claude Desktop (6)

These 6 tools become available when you connect UK ONS Discovery — Search 337+ Statistical Datasets to Claude Desktop via MCP:

get_dataset_info

Get metadata for an ONS dataset: dimensions, editions, versions

get_dimension_options

g., all geography codes, all time periods, all aggregate categories). Use this to find the correct filter values for observations. Get all option values for a specific dimension in an ONS dataset

get_dimensions

Each dimension has options you can use to filter observations. Essential for understanding what query parameters to use. Get available dimensions and filter options for an ONS dataset

get_observations

Provide dataset ID and dimension filters. Use search_datasets to find IDs and get_dimensions to discover available filters. Set time=* for full time series. Query any ONS dataset by ID with flexible dimension filters

list_datasets

The catalog contains 337+ datasets covering economy, population, health, trade, business, and more. Browse the complete ONS dataset catalog with pagination

search_datasets

Returns matching dataset IDs, titles, and descriptions. Use this to find the right dataset before querying data. Search ONS datasets by keyword — explore 337+ available datasets

Example Prompts for UK ONS Discovery — Search 337+ Statistical Datasets in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with UK ONS Discovery — Search 337+ Statistical Datasets immediately.

"What ONS datasets are available about housing?"

"Can you list the variables (dimensions) available for the house-prices dataset?"

"What is the latest data on the UK employment rate?"

Troubleshooting UK ONS Discovery — Search 337+ Statistical Datasets MCP Server with Claude Desktop

Common issues when connecting UK ONS Discovery — Search 337+ Statistical Datasets to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting — wait a few seconds.

UK ONS Discovery — Search 337+ Statistical Datasets + Claude Desktop FAQ

Common questions about integrating UK ONS Discovery — Search 337+ Statistical Datasets MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully — if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL — Claude auto-negotiates the transport protocol.