2026-09-16

Free APIs worth wiring on Vercel

Set PSI_API_KEY for lab performance and the Lighthouse SEO category.

Set GOOGLE_CSE_KEY and GOOGLE_CSE_CX if you want related titles from Custom Search.

Set MOZ_ACCESS_ID and MOZ_SECRET_KEY for url_metrics on the free Moz tier.

AnswerThePublic does not ship a public JSON API. Auditly links the research UI instead of pretending to scrape it.