{"name":"wiki-brief","description":"Looks up a topic on Wikipedia and digests it in one call: canonical article, bullet brief, and named entities. Returns the article's title, URL, Wikidata Q-id, and intro, a bullet brief distilled from the article body, and the named entities (people, organizations, locations, dates) it mentions. One paid call replaces the lookup-then-digest agent loop: ideal for topic primers, RAG context assembly, research agents, quiz/content generation. Composite: one call runs wikipedia-lookup first, then summarize-text + extract-entities in parallel over the article text. Use it as an encyclopedia lookup + summary + entities bundle, RAG context builder, or topic primer API.","price":"$0.03","method":"POST","input_schema":{"properties":{"topic":{"type":"string","description":"Topic, person, place, or concept to brief. 1-300 chars."}},"required":["topic"]},"input_example":{"topic":"Albert Einstein"},"output_example":{"topic":"Albert Einstein","title":"Albert_Einstein","canonical_url":"https://en.wikipedia.org/wiki/Albert_Einstein","description":"German-born physicist (1879-1955)","wikidata_item":"Q937","intro":"Albert Einstein was a German-born theoretical physicist best known for developing the theory of relativity...","brief":"- Developed the theory of relativity\n- Won the 1921 Nobel Prize in Physics","entities":{"people":["Albert Einstein"],"locations":["Ulm","Princeton"]},"composed_of":["wikipedia-lookup","summarize-text","extract-entities"],"components":[{"name":"wikipedia-lookup","ok":true,"ms":1100},{"name":"summarize-text","ok":true,"ms":2300},{"name":"extract-entities","ok":true,"ms":1900}],"degraded":false},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}