Connect GLEIF (LEI) to Codex
Query GLEIF (LEI) directly from Codex. Arlet links the two through one MCP connection and takes care of API keys.
Connects your AI client to the GLEIF API v1 (the operator of the global LEI system).
Tools:
- search_lei_records: full-text search by company name. Returns LEI, legal name, jurisdiction and status.
- get_lei_record: one entity record by its 20-character LEI.
- get_lei_ownership: the reported direct parent and ultimate parent of an entity. Note that a missing parent means none is *reported* to GLEIF, not necessarily that none exists.
LEI is the cross-reference hub for other corporate data sources (it also carries BIC and other identifier mappings), which makes this server useful together with jurisdiction-specific corporate registries.
How to connect GLEIF (LEI) to Codex
- 1
In the Arlet dashboard, open Data tools, find GLEIF (LEI) and switch it on. No API key setup is needed.
- 2
In your terminal, run codex mcp add arlet --url https://mcp.arlet.dev/mcp/ to add Arlet as an MCP server.
- 3
Codex detects OAuth support and opens your browser. Sign in with Google and click Allow on the consent screen.
- 4
Once connected, both the CLI and the IDE extension can call Arlet tools (the configuration is shared).
If the browser does not open, run codex mcp login arlet to redo the authentication.