{"id":"calculator-mcp","name":"calculator-mcp","af_score":59.5,"security_score":49.0,"reliability_score":47.5,"what_it_does":"A simple Model Context Protocol calculator server","best_when":null,"avoid_when":null,"last_evaluated":"2026-03-22T00:12:54.127790+00:00","has_mcp":true,"has_api":false,"auth_methods":[],"has_free_tier":false,"known_gotchas":[],"error_quality":null}