ElkassabgiData MCP Server

A Model Context Protocol server that gives an AI assistant direct access to the three Elkassabgi data libraries: economic statistics, high-frequency US equity bars, and patent/innovation measures.

It runs as a Cloudflare Worker with a Durable Object per session.

Endpoint: https://elkassabgidata-mcp.elkassabgi.workers.dev/mcp

What it does

Twelve tools across the three libraries, one server for all of them. Browsing, searching and the download links work with no account; the data itself needs a free API key (see below).

Every response carries the source's own licence with it, because the licence differs per source and honouring it is the user's obligation as much as ours.

Related MCP server: Wealthnow

Getting an API key

Free, instant, and one key works across all three libraries: https://econdatalibrary.com/account

The key is used server-side only and is never echoed back into the conversation in full: get_auth_status shows only its first four characters and its length, so you can tell which key is set.

Install

Claude Code

claude mcp add --transport http elkassabgidata \
  https://elkassabgidata-mcp.elkassabgi.workers.dev/mcp \
  --header "Authorization: Bearer YOUR_KEY"

Claude Desktop

{
  "mcpServers": {
    "elkassabgidata": {
      "url": "https://elkassabgidata-mcp.elkassabgi.workers.dev/mcp",
      "headers": { "Authorization": "Bearer YOUR_KEY" }
    }
  }
}

Cursor

{
  "mcpServers": {
    "elkassabgidata": {
      "serverUrl": "https://elkassabgidata-mcp.elkassabgi.workers.dev/mcp",
      "headers": { "Authorization": "Bearer YOUR_KEY" }
    }
  }
}

ChatGPT developer mode

Add the connector URL directly:

https://elkassabgidata-mcp.elkassabgi.workers.dev/mcp?api_key=YOUR_KEY

A worked example

Calling search_econ_series with no API key:

{
  "jsonrpc": "2.0", "id": 2, "method": "tools/call",
  "params": {
    "name": "search_econ_series",
    "arguments": { "query": "unemployment rate", "limit": 3 }
  }
}

The actual response (live server, 2026-10-02; counts change as the catalogue grows):

8,294 series match "unemployment rate". Showing 3:

abs:LF:M13.3.1599.20.AUS.M
   Unemployment rate (persons, SA, Australia) [M, AU, Percent] 1978-02-28→2026-04-30 · license:cc-by-4.0
adb:ADB:PPL:LUR_PT:AFG
   Unemployment rate [?, ?] 2001-12-31→2020-12-31 · license:cc-by-3.0-igo-adb
adb:ADB:PPL:LUR_PT:ARM
   Unemployment rate [?, ?] 2000-12-31→2023-12-31 · license:cc-by-3.0-igo-adb

Fetch data with get_econ_series(series_id). Metadata + citation with get_econ_series_metadata.

Pass series_id to get_econ_series to pull the observations.

Development

npm install
npx wrangler dev      # local
npx wrangler deploy   # publish

The libraries

• Econ Data Library — https://econdatalibrary.com

• HF Data Library — https://hfdatalibrary.com

• IP Data Library — https://ipdatalibrary.com

Licence

MIT — see LICENSE.

The data reached through this server is not MIT. Each dataset stays under the terms of the agency that published it, and those terms travel with every response.