JSON repair & validation MCP server for AI agents: fixes malformed JSON (trailing commas, truncation, etc.) and validates/coerces against a JSON Schema, with deterministic free tier and paid LLM-fallback.
Enables repair of malformed JSON strings into valid JSON for agent workflows by fixing common LLM formatting issues. Supports cleanup of code fences, smart quotes, unquoted keys, trailing commas, and missing brackets to ensure reliable data parsing.
Fact-checks and fixes AI outputs by catching hallucinations, repairing broken JSON, and correcting errors before they reach users, with tools for verification, validation, and correction.