Turn any LLM into a reliable local JSON API | Contract-first local LLM API builder for structured JSON outputs, model/prompt comparison, schema validation, repair/retry, model switching, and runtime testing.

A lenient, fast JSON processor for Ruby. It extracts strict JSON, NDJSON, JSONL, JSON5, HJSON, and messy JSON input humans or LLMs actually write — and in benchmarks it matches or beats Oj on nearly every file. SmarterJSON is opinionated: we want your JSON processing to be successful. Traditional JSON parsers are strict - SmarterJSON keep going