{"name":"ssgraph","description":"Persona-graph API — cultural/psychographic grounding for AI applications","entities":8368,"segments":80,"categories":19,"subcategories":158,"built_at":"2026-05-16T01:29:21.902821+00:00","source_version":"latest","endpoints":{"GET /v1/attention/similar/:handle":"Top-K by audience shape (cosine). Optional: ?k=50&category=X&subcategory=Y","GET /v1/attention/similar/search?q=":"Text → best match → similarity results","GET /v1/attention/similar/matches?q=":"Text → all matches → array of similarity result sets","GET /v1/attention/affinity/:handle":"Top-K by distinctive co-affinity (PMI). Optional: ?k=50&category=X&drivers=5","GET /v1/attention/affinity/search?q=":"Text → best match → affinity results","GET /v1/attention/affinity/matches?q=":"Text → all matches → array of affinity result sets","GET /v1/attention/similarity/:a/:b":"Pairwise cosine similarity","GET /v1/attention/search?q=":"Text → matching entities (handle, title, match_type)","GET /v1/attention/handles?q=":"Text → matching canonical handles only","GET /v1/attention/categories":"All categories and subcategories"},"pricing":{"model":"per-call","rate":"$0.00 / 1,000 calls (free tier)"}}