{"query":"activity-code","matched":1,"count":1,"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":"nih_activity_codes","endpoint":"/v1/nih/activity-codes","price_usd":0.0,"description":"NIH grant mechanism decoder: R01, R21, K-series, U-series, P-series, SBIR/STTR activity codes with names and one-line meanings. Free, no key.","when_to_use":"You have an NIH activity code to decode or want the standard mechanisms for a career stage or program type.","tags":["nih","grants","activity-code","glossary","free"],"example_url":"https://answerpool.io/v1/nih/activity-codes?q=R01","sample_url":"https://answerpool.io/v1/samples/nih_activity_codes"}]}