{"query":"science","matched":6,"count":6,"catalog_size":133,"note":"Ranked by where the terms matched (id and tags beat prose). Call example_url as-is; free products need no payment, paid ones return 402 with the price.","products":[{"id":"science_topics","endpoint":"/v1/science/topics","price_usd":0.0,"description":"4,500-topic research directory with weekly-computed growth and momentum stats: search by name or field, sort by momentum, works or growth. Raw numbers, no LLM. Free, no key.","when_to_use":"You need topic resolution or raw growth numbers for research areas — screening before the graded momentum products.","tags":["science","research","topics","momentum","free"],"example_url":"https://answerpool.io/v1/science/topics?q=quantum","sample_url":"https://answerpool.io/v1/samples/science_topics"},{"id":"science_fields","endpoint":"/v1/science/fields","price_usd":0.0,"description":"Every research field with tracked-topic count, recent works volume, emerging-topic count and its top-momentum topic — the one-call landscape map. Free, no key.","when_to_use":"You want the field-level map before topic-level analysis.","tags":["science","research","fields","landscape","free"],"example_url":"https://answerpool.io/v1/science/fields?topic=","sample_url":"https://answerpool.io/v1/samples/science_fields"},{"id":"science_related","endpoint":"/v1/science/related","price_usd":0.0,"description":"One topic in, its OpenAlex subfield peers out with works volume, 3y growth and momentum rank from our weekly scan, term-matched peers first. Honest about subfield breadth via term_matched. Free, no key.","when_to_use":"You have a topic and want its subfield peers ranked, for landscape mapping.","tags":["science","research","topics","subfield","free"],"example_url":"https://answerpool.io/v1/science/related?q=quantum+computing","sample_url":"https://answerpool.io/v1/samples/science_related"},{"id":"technology_emerging","endpoint":"/v1/technology/emerging","price_usd":0.05,"description":"Rank the fastest-accelerating research topics across ~4,500 OpenAlex topics, weekly — returns rank, momentum z-score, growth, acceleration and citation-quality growth per topic, filterable by field. Use to find what is accelerating.","when_to_use":"You need a ranked, evidence-backed list of accelerating fields (optionally within one discipline) to seed scouting, diligence, or content, and would otherwise scan topic by topic.","tags":["emerging-technology","research-trends","openalex","technology-scouting","science"],"example_url":"https://answerpool.io/v1/technology/emerging?limit=25","sample_url":"https://answerpool.io/v1/samples/technology_emerging"},{"id":"technology_lookup","endpoint":"/v1/technology/lookup","price_usd":0.0,"description":"Look up statistical research momentum for one OpenAlex topic (free) — returns rank among ~4,500 topics, momentum z-score, 1y/3y/5y growth, acceleration and per-year counts. Use to screen a field before paying for a full judgment.","when_to_use":"You have a topic and want its numbers now, or you are screening many topics.","tags":["research-momentum","openalex","technology-scouting","free","science"],"example_url":"https://answerpool.io/v1/technology/lookup?topic=photonic+computing","sample_url":"https://answerpool.io/v1/samples/technology_lookup"},{"id":"technology_momentum","endpoint":"/v1/technology/momentum","price_usd":0.05,"description":"Score research momentum for any technology from OpenAlex (CC0) — returns momentum_score, acceleration_score, trend_label, growth series, leading institutions and researchers, key works, confidence and provenance. Use before betting a field is accelerating.","when_to_use":"You need a quantified, source-cited answer to \"is this research or technology field accelerating, growing, stable, or declining?\" for one named topic, with growth ratios, leaders, and recent influential works, in one call.","tags":["technology-momentum","research-trends","openalex","deep-tech","science"],"example_url":"https://answerpool.io/v1/technology/momentum?topic=photonic+computing","sample_url":"https://answerpool.io/v1/samples/technology_momentum"}]}