# Asub Ax [Health: Active]

**Category:** 🧮 Data Science Tools  
**Repository:** https://github.com/pipeworx-io/mcp-asub-ax  
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**Directory Page:** https://allmcps.com/mcp/asub-ax

## Description
Statistics and Research Åland (ÅSUB) PxWeb MCP.

## Tools
Capabilities this server exposes over MCP:

- **subjects** — Browse the ÅSUB (Statistics Åland) PxWeb subject tree. Pass a sub-path like "Statistik" or "Statistik/BE" to list folders (type "l") and tables (type "t", id ends in ".px"); omit path to list the top-level databases (Statistik, Utredning).
- **table_meta** — Fetch dimension definitions and valid values for an ÅSUB PxWeb table (.px file). Path must be the full table path ending in ".px" (e.g. "Statistik/BE/Befolkningsrörelsen/BE006.px"). Returns dimension codes, labels, and the value lists needed to build a query_table body.
- **query_table** — POST a PxWeb selection query to an ÅSUB table and return the data as json-stat2. Path must end in ".px"; body is a PxWeb query object with a "query" array of {code, selection: {filter, values}} entries plus {response: {format: "json-stat2"}}. Narrow each dimension's values to stay under PxWeb's per…

## Claude Desktop Quick Installation
Install path detected from listing signals. Uses `npx` (confidence: high):

```json
"mcpServers": {
  "asub-ax": {
    "command": "npx",
    "args": ["-y","@pipeworx/mcp-asub-ax"]
  }
}
```

## Documentation

## What Asub Ax does

Asub Ax connects MCP clients to the ÅSUB PxWeb data service, covering the Statistics and Research Åland subject tree. It exposes three data-oriented tools:

- `subjects` lists top-level databases, folders, and statistical tables.
- `table_meta` returns a table's dimensions, labels, and permitted values.
- `query_table` submits a PxWeb selection and returns the resulting dataset in json-stat2 format.

The intended workflow is to discover a table, inspect its dimensions, and then select values for each dimension in a query. Table paths use the ÅSUB hierarchy and end in `.px`, such as `Statistik/BE/Befolkningsrörelsen/BE006.px`.

This is an independent, unofficial integration and is not affiliated with, endorsed by, or published by ÅSUB.

## How it works

With the hosted connection, an MCP client connects to `https://gateway.pipeworx.io/asub-ax/mcp`. The scoped endpoint lists the three Asub Ax tools alongside shared Pipeworx gateway tools. Those shared tools can route broader questions through the Pipeworx catalog, while the pack-specific tools operate on ÅSUB data directly.

The same gateway also offers a full endpoint at `https://gateway.pipeworx.io/mcp`. The full endpoint lists all available packs directly; the Asub Ax endpoint lists this pack directly while still exposing the gateway's shared tools.

A local installation runs over MCP stdin/stdout and exposes only the Asub Ax tools. It uses the same source and avoids the gateway round trip.

## Setup and configuration

For a hosted MCP connection, add the following server entry to a compatible client:

```json
{
  "mcpServers": {
    "asub-ax": {
      "url": "https://gateway.pipeworx.io/asub-ax/mcp"
    }
  }
}
```

The package can also be launched locally with `npx`:

```json
{
  "mcpServers": {
    "asub-ax": {
      "command": "npx",
      "args": ["-y", "@pipeworx/mcp-asub-ax"]
    }
  }
}
```

Run `npx -y @pipeworx/mcp-asub-ax` directly to start the local server. The hosted gateway can also be called without an MCP client through HTTP. For example, post `{"path":""}` as JSON to `https://gateway.pipeworx.io/v1/tools/asub_ax_subjects` to list the top-level subjects. Initial gateway calls do not require an account.

## Tools and capabilities

`subjects` accepts an optional path. An empty path lists the top-level databases, including `Statistik` and `Utredning`. A path such as `Statistik` or `Statistik/BE` lists child folders and tables. Folders are identified with type `l`; tables use type `t` and have IDs ending in `.px`.

`table_meta` requires the complete path to a `.px` table. Its response provides dimension codes, human-readable labels, and valid value lists. Use these values to construct a PxWeb request rather than guessing dimension codes or selections.

`query_table` requires a table path and a PxWeb query body. The body contains a `query` array with dimension codes and selection objects, plus a response declaration using the `json-stat2` format. Keep selections narrow enough to remain below ÅSUB PxWeb's response cell limit.

## Limitations and notes

The scoped gateway endpoint includes shared Pipeworx meta-tools in addition to the three pack tools, so its tool list is larger than the Asub Ax tool list. The local package does not include those shared tools or cross-catalog routing.

The HTTP gateway and local package are different access modes for the same Asub Ax source. Use the hosted endpoint when a remote MCP connection is preferable, or the local package when the client should communicate over stdio without a Pipeworx account. MIT licensing applies.

_Full upstream README: https://allmcps.com/mcp/asub-ax/readme_