https://github.com/cyanheads/eurostat-mcp-server
Search and query 8,933 Eurostat datasets — EU economy, demography, trade, health, and NUTS regional data via MCP. STDIO or Streamable HTTP.
https://github.com/cyanheads/eurostat-mcp-server
bun demography economy eu eurostat gdp mcp mcp-server model-context-protocol nuts open-data statistics stdio streamable-http trade typescript
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Search and query 8,933 Eurostat datasets — EU economy, demography, trade, health, and NUTS regional data via MCP. STDIO or Streamable HTTP.
- Host: GitHub
- URL: https://github.com/cyanheads/eurostat-mcp-server
- Owner: cyanheads
- License: apache-2.0
- Created: 2026-05-23T17:00:38.000Z (28 days ago)
- Default Branch: main
- Last Pushed: 2026-05-24T04:59:28.000Z (28 days ago)
- Last Synced: 2026-05-24T06:36:56.497Z (28 days ago)
- Topics: bun, demography, economy, eu, eurostat, gdp, mcp, mcp-server, model-context-protocol, nuts, open-data, statistics, stdio, streamable-http, trade, typescript
- Language: TypeScript
- Homepage: https://www.npmjs.com/package/@cyanheads/eurostat-mcp-server
- Size: 412 KB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
- Agents: AGENTS.md
Awesome Lists containing this project
README
@cyanheads/eurostat-mcp-server
Search and query 8,933 Eurostat datasets — EU economy, demography, trade, health, and NUTS regional data via MCP. STDIO or Streamable HTTP.
5 Tools • 1 Resource
[](./CHANGELOG.md) [](./LICENSE) [](https://github.com/users/cyanheads/packages/container/package/eurostat-mcp-server) [](https://modelcontextprotocol.io/) [](https://www.npmjs.com/package/@cyanheads/eurostat-mcp-server) [](https://www.typescriptlang.org/) [](https://bun.sh/)
[](https://github.com/cyanheads/eurostat-mcp-server/releases/latest/download/eurostat-mcp-server.mcpb) [](https://cursor.com/en/install-mcp?name=eurostat-mcp-server&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBjeWFuaGVhZHMvZXVyb3N0YXQtbWNwLXNlcnZlciJdfQ==) [](https://vscode.dev/redirect?url=vscode:mcp/install?%7B%22name%22%3A%22eurostat-mcp-server%22%2C%22command%22%3A%22npx%22%2C%22args%22%3A%5B%22-y%22%2C%22%40cyanheads%2Feurostat-mcp-server%22%5D%7D)
[](https://www.npmjs.com/package/@cyanheads/mcp-ts-core)
**Public Hosted Server:** [https://eurostat.caseyjhand.com/mcp](https://eurostat.caseyjhand.com/mcp)
---
## Tools
5 tools for discovering and querying Eurostat statistical datasets:
| Tool | Description |
|:---|:---|
| `eurostat_search_datasets` | Search the Eurostat catalogue (8,933 datasets) by keyword — returns codes, descriptions, period coverage, and theme breadcrumbs |
| `eurostat_browse_themes` | Navigate the Eurostat theme hierarchy — list root themes or drill into subthemes and datasets |
| `eurostat_get_dataset_info` | Fetch metadata for a dataset: dimensions with sample values, time range, observation count, and last-update date |
| `eurostat_get_dimension_values` | List all valid codes for a specific dimension (e.g., all geo codes, all unit codes); supports NUTS hierarchy filtering |
| `eurostat_query_dataset` | Fetch decoded statistical observations with dimension filters, NUTS geo-level, and time-range controls |
### `eurostat_search_datasets`
Search the Eurostat dataset catalogue by keyword.
- Case-insensitive substring match against dataset labels across 8,933 datasets
- Returns code, label, type (dataset/table), period coverage, observation count, and theme breadcrumb
- Configurable result limit (1–100, default 20); reports total matches before the limit
- Catalogue loaded once per session from the Eurostat TOC file
- Pair with `eurostat_browse_themes` for structured domain exploration when keywords are unclear
---
### `eurostat_browse_themes`
Navigate the Eurostat theme tree.
- Without `theme_code`: returns the 11 top-level themes (Economy and finance, Population, Transport, etc.)
- With `theme_code`: returns immediate children — subtheme folders and datasets in that branch
- Each entry includes code, label, type (folder/dataset/table), data period, and observation count where available
- Returns a breadcrumb path from root to the current node
- Use for structured discovery when you know the domain but not the exact dataset code
---
### `eurostat_get_dataset_info`
Fetch metadata for a Eurostat dataset before querying it.
- Returns all dimensions with their codes, labels, and up to 10 sample values each
- Reports overall time range and total observation count across all periods
- Uses a minimal Statistics API call (most recent period only) for efficiency
- For dimensions with more than 10 values, use `eurostat_get_dimension_values` for the full list
- Provides a link to the ESMS metadata page when available
---
### `eurostat_get_dimension_values`
List all valid values for a specific dataset dimension.
- Retrieves the complete set of valid codes and labels for any dimension (unit, na_item, geo, etc.)
- For the `geo` dimension, supports NUTS hierarchy filtering: `aggregate` (EU/EA totals), `country` (41 states), `nuts1` (127 major regions), `nuts2` (309 basic regions), `nuts3` (1,343 small regions)
- Prevents silent no-data returns — invalid dimension values in `eurostat_query_dataset` return nothing without error; verify codes here first
---
### `eurostat_query_dataset`
Fetch statistical data from a Eurostat dataset.
- Accepts dimension filters as a map of `{dimension_code: [value1, value2, ...]}`
- NUTS geo-level filter (`aggregate`, `country`, `nuts1`, `nuts2`, `nuts3`) — mutually exclusive with a `geo` key in filters
- Time range via `since_period`/`until_period` (e.g., `"2020"`, `"2023-Q1"`) or `last_n_periods` for the N most recent
- Returns decoded observations with dimension codes and labels, numeric values, and status flags (`p` = provisional, `e` = estimated, etc.)
- Reports total observation count, missing value count, and effective time range of the result
- Async-response detection — large unfiltered queries return an actionable error with filter guidance rather than silently timing out
## Resource
| Type | Name | Description |
|:---|:---|:---|
| Resource | `eurostat://dataset/{dataset_code}` | Dataset metadata (dimensions, time range, obs count, last-updated) accessible by URI for cache-injectable context |
## Features
Built on [`@cyanheads/mcp-ts-core`](https://github.com/cyanheads/mcp-ts-core):
- Declarative tool definitions — single file per tool, framework handles registration and validation
- Unified error handling across all tools
- Pluggable auth (`none`, `jwt`, `oauth`)
- Swappable storage backends: `in-memory`, `filesystem`, `Supabase`, `Cloudflare KV/R2/D1`
- Structured logging with optional OpenTelemetry tracing
- Runs locally (stdio/HTTP) or on Cloudflare Workers from the same codebase
Eurostat-specific:
- Session-level in-memory cache for the TOC file — loaded once, reused across all search and browse calls
- JSON-stat 2.0 stride-based decoder for the Statistics API response format
- Async-response detection — Eurostat returns a warning object rather than an error for over-limit queries; the server intercepts it and returns an actionable error with filter guidance
- NUTS hierarchy geo-level filtering across query and dimension-value tools
- Status flag decoding (provisional, estimated, definition differs, etc.)
Agent-friendly output:
- Discovery workflow: `eurostat_search_datasets` / `eurostat_browse_themes` → `eurostat_get_dataset_info` → `eurostat_get_dimension_values` → `eurostat_query_dataset`
- Invalid dimension codes in query filters silently return no data from Eurostat — the `eurostat_get_dimension_values` tool prevents this by letting agents verify codes first
- Structured error contracts with typed reasons and recovery hints on all tools
## Getting started
### Public Hosted Instance
A public instance is available at `https://eurostat.caseyjhand.com/mcp` — no installation required. Point any MCP client at it via Streamable HTTP:
```json
{
"mcpServers": {
"eurostat-mcp-server": {
"type": "streamable-http",
"url": "https://eurostat.caseyjhand.com/mcp"
}
}
}
```
### Self-Hosted / Local
Add the following to your MCP client configuration file.
```json
{
"mcpServers": {
"eurostat-mcp-server": {
"type": "stdio",
"command": "bunx",
"args": ["@cyanheads/eurostat-mcp-server@latest"],
"env": {
"MCP_TRANSPORT_TYPE": "stdio",
"MCP_LOG_LEVEL": "info"
}
}
}
}
```
Or with npx (no Bun required):
```json
{
"mcpServers": {
"eurostat-mcp-server": {
"type": "stdio",
"command": "npx",
"args": ["-y", "@cyanheads/eurostat-mcp-server@latest"],
"env": {
"MCP_TRANSPORT_TYPE": "stdio",
"MCP_LOG_LEVEL": "info"
}
}
}
}
```
Or with Docker:
```json
{
"mcpServers": {
"eurostat-mcp-server": {
"type": "stdio",
"command": "docker",
"args": ["run", "-i", "--rm", "-e", "MCP_TRANSPORT_TYPE=stdio", "ghcr.io/cyanheads/eurostat-mcp-server:latest"]
}
}
}
```
For Streamable HTTP, set the transport and start the server:
```sh
MCP_TRANSPORT_TYPE=http MCP_HTTP_PORT=3010 bun run start:http
# Server listens at http://localhost:3010/mcp
```
### Prerequisites
- [Bun v1.3.2](https://bun.sh/) or higher. No API key required — Eurostat's dissemination API is public.
### Installation
1. **Clone the repository:**
```sh
git clone https://github.com/cyanheads/eurostat-mcp-server.git
```
2. **Navigate into the directory:**
```sh
cd eurostat-mcp-server
```
3. **Install dependencies:**
```sh
bun install
```
## Configuration
All configuration is validated at startup via Zod schemas in `src/config/server-config.ts`. Key environment variables:
| Variable | Description | Default |
|:---|:---|:---|
| `MCP_TRANSPORT_TYPE` | Transport: `stdio` or `http` | `stdio` |
| `MCP_HTTP_PORT` | HTTP server port | `3010` |
| `MCP_HTTP_ENDPOINT_PATH` | HTTP endpoint path | `/mcp` |
| `MCP_PUBLIC_URL` | Public origin override for TLS-terminating reverse-proxy deployments | none |
| `MCP_AUTH_MODE` | Authentication: `none`, `jwt`, or `oauth` | `none` |
| `MCP_LOG_LEVEL` | Log level (`debug`, `info`, `warning`, `error`, etc.) | `info` |
| `MCP_GC_PRESSURE_INTERVAL_MS` | Opt-in Bun-only forced-GC pressure loop (ms). Recommended starting point if heap growth is observed: `60000`. | `0` (disabled) |
| `LOGS_DIR` | Directory for log files (Node.js only) | `/logs` |
| `STORAGE_PROVIDER_TYPE` | Storage backend: `in-memory`, `filesystem`, `supabase`, `cloudflare-kv/r2/d1` | `in-memory` |
| `EUROSTAT_BASE_URL` | Eurostat API base URL | `https://ec.europa.eu/eurostat/api/dissemination` |
| `EUROSTAT_REQUEST_TIMEOUT_MS` | HTTP request timeout in ms | `30000` |
| `OTEL_ENABLED` | Enable OpenTelemetry | `false` |
## Running the server
### Local development
- **Build and run the production version**:
```sh
# One-time build
bun run rebuild
# Run the built server
bun run start:http
# or
bun run start:stdio
```
- **Run checks and tests**:
```sh
bun run devcheck # Lints, formats, type-checks, and more
bun run test # Runs the test suite
```
## Project structure
| Directory | Purpose |
|:---|:---|
| `src/mcp-server/tools` | Tool definitions (`*.tool.ts`). Five tools for discovery and data access. |
| `src/mcp-server/resources` | Resource definitions. Dataset metadata resource. |
| `src/services/eurostat-catalogue` | Catalogue service — fetches and parses the Eurostat TOC TXT file; session-level in-memory cache. |
| `src/services/eurostat-data` | Data service — Statistics API HTTP client, JSON-stat 2.0 decoder, async-response detection. |
| `src/config` | Server-specific environment variable parsing and validation with Zod. |
| `tests/` | Unit and integration tests, mirroring the `src/` structure. |
## Development guide
See [`CLAUDE.md`](./CLAUDE.md) for development guidelines and architectural rules. The short version:
- Handlers throw, framework catches — no `try/catch` in tool logic
- Use `ctx.log` for logging, `ctx.state` for storage
- Register new tools and resources in the `createApp()` arrays
## Contributing
Issues and pull requests are welcome. Run checks and tests before submitting:
```sh
bun run devcheck
bun run test
```
## License
This project is licensed under the Apache 2.0 License. See the [LICENSE](./LICENSE) file for details.