LinkDigest adds a one-call Xiaohongshu topic search that reads and ranks posts by engagement

LinkDigest, a service built by its author, offers a Xiaohongshu (RedNote) search endpoint that finds posts on a topic, reads each one in full including image text and video speech, and returns them ranked hottest first. A sample run on camping gear returned four posts for 7 credits, and the ranking used a heat score that weights saves twice because they signal the reader plans to return. The API processes requests as a batch, so callers poll for completion, and results that cannot be read are skipped and replaced without charge. The article notes limits: some topics have too few indexed notes to fill a batch, and failed reads are reported through the usage endpoint with suggested fixes.