USE FOR spell correction. Returns corrected query if misspelled. Most search endpoints have spellcheck built-in; use this only for pre-search query cleanup or "Did you mean?" UI.

Spellcheck Requires API Key : Get one at https://api.search.brave.com Plan : Included in the Spellcheck plan. See https://api dashboard.search.brave.com/app/subscriptions/subscribe Quick Start (cURL) Endpoint Authentication : X Subscription Token: <API KEY header Parameters Parameter Type Required Default Description q string Yes — Query to spell check (1 400 chars, max 50 words) lang string No en Language preference (2+ char language code, e.g. en , fr , de , pt br , zh hans ). 51 codes supported country string No US Search country (2 letter country code or ALL ) Response Fields Field Type Description type string Always "spellcheck" query.original string The input query as submitted results array Spell corrected suggestions. May be empty when no correction is found results[].query string A corrected version of the query Example Response Use Cases Pre search query cleanup : Check spelling before deciding which search endpoint to call "Did you mean?" UI : Show users a corrected suggestion before running the search Batch query normalization : Clean up user inputs in bulk Notes Built in alternative : Web Search and LLM Context have spellcheck=true by default — use this standalone endpoint only when you need the correction before searching Context aware : Corrections consider the full query context, not just individual words