{"data":{"slug":"openalex","name":"OpenAlex","homepage":"https://openalex.org/","record_types":["scholarly_works","people"],"places":["global"],"years":null,"access_method":"api","api_docs_url":"https://help.openalex.org/api/authentication/","terms_url":"https://help.openalex.org/access/example-costs/","robots_ok":true,"rate_limit":"Without a key: 10 requests a second, and one free daily budget of 10 US cents shared by every client on the caller's IP address (a search costs a tenth of a cent, a filtered list a hundredth of a cent, a single record nothing). The mailto parameter no longer raises the limit. A free key raises the budget to one US dollar a day.","key_required":false,"key_env":null,"review":"verified","verified_at":"2026-11-02","evidence":["https://help.openalex.org/how-to-use-the-api/rate-limits-and-authentication","https://help.openalex.org/api/authentication.md","https://help.openalex.org/access/example-costs.md","https://help.openalex.org/llms.txt","https://api.openalex.org/robots.txt"],"notes":"Academic works, authors and their affiliations (theses, papers, institutions by year). Lineage calls it without a key: one author search (10 credits of OpenAlex's own budget) and one filtered works list (1 credit) per node, each sent with the Lineage User-Agent and the contact address from LINEAGE_CONTACT_EMAIL when set. Responses are cached 6 hours per instance. On a server whose shared keyless budget is spent, OpenAlex answers 429 and the node is listed in skipped[]; Lineage never asks for or creates a key. OpenAlex data is CC0. Citations point at the work's openalex.org page, which OpenAlex serves to scripts.","status":"live","key_configured":null,"health":{"status":"live","checked_at":"2026-11-03T03:51:17.754Z","http_status":200,"latency_ms":179,"probe_url":"https://api.openalex.org/works/W2741809807?select=id","reason":null},"links":{"self":"https://api.lineage.rexstjohn.com/v1/sources/openalex","page":"https://api.lineage.rexstjohn.com/sources/openalex","llms_txt":"https://api.lineage.rexstjohn.com/sources/openalex/llms.txt"}},"checked_at":"2026-11-03T03:51:17.754Z"}