Build on the same engine.

const stream = await yesil.chat.stream({
question: "Should I take vitamin D this winter?",
demographics: { age: 38, sex: "f" },
});
 
// SSE: token · citation · memory_extracted · done
for await (const e of stream) {
if (e.type === "citation") {
// { source: "NEJM", doi: "10.1056/…" }
}
}

const papers = await yesil.evidence.search({
query: "omega-3 and cardiovascular risk",
filters: { study_types: ["rct"], year_min: 2018 },
limit: 5,
});
 
// Ranked papers — title, DOI, journal, score
papers.results.forEach((p) => {
console.log(p.doi, p.relevance_score);
});