Connect OECD Data to Claude Code
Query OECD Data directly from Claude Code. Arlet links the two through one MCP connection and takes care of API keys.
Connects your AI client to the OECD SDMX API (sdmx.oecd.org), the backend of OECD Data Explorer.
Tools:
- search_oecd_dataflows: keyword search over OECD-provided dataflows (the full list is cached; the first call can take ~10 seconds).
- get_oecd_dataflow_dimensions: dimension order and codes for one dataflow; shows the exact key template for the data query.
- get_oecd_data: observations for a dimension key (empty segment = wildcard, or 'all'), with lastNObservations control.
Implementation note: the OECD service returns HTTP 500 unless an Accept-Language header is sent; this server handles that. Attribution: data are from OECD Data Explorer (https://data-explorer.oecd.org).
How to connect OECD Data to Claude Code
- 1
In the Arlet dashboard, open Data tools, find OECD Data and switch it on. No API key setup is needed.
- 2
In your terminal, run claude mcp add --transport http arlet https://mcp.arlet.dev/mcp/ to add Arlet as an MCP server.
- 3
Start Claude Code, run /mcp, select arlet and click Authenticate.
- 4
Your browser opens. Sign in with Google and click Allow on the consent screen. The connection is complete.
The connection is per user and works across every project on the same machine.