Connect Psychology Research to Codex
Query Psychology Research directly from Codex. Arlet links the two through one MCP connection and takes care of API keys.
A research assistant for psychology that covers what PubMed alone misses.
Tools:
- search_psychology_papers: OpenAlex restricted to the psychology field, so social, cognitive, developmental and clinical psychology journals outside the biomedical index are included. Returns title, authors, journal, year, DOI, citation count and open-access status.
- search_psyarxiv_preprints: PsyArXiv preprints on OSF, for work not yet in a journal.
- search_preregistrations: OSF Registries, to check whether hypotheses and an analysis plan were filed before data collection.
- search_education_psychology: ERIC, for education and educational-psychology literature.
Abstract handling: abstracts are returned only for open-access articles under a CC license. For everything else the record carries metadata and a link, because abstract text remains the publisher's copyright. ERIC summaries are written by ERIC itself and are always safe to quote.
OpenAlex requires an API key as of 2026-02-13 and bills against credits, so the key stays in your own Arlet environment variables and usage is attributed to you. The key is declared optional so the three key-free tools stay usable without it; search_psychology_papers reports clearly when it is missing.
How to connect Psychology Research to Codex
- 1
In the Arlet dashboard, open Data tools, find Psychology Research 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.