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.
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
Hono JWK Auth Middleware has JWT algorithm confusion when JWK lacks "alg" (untrusted header.alg fallback)
hono: CORS Middleware reflects any Origin with credentials when `origin` defaults to the wildcard
Hono JWT Middleware's JWT Algorithm Confusion via Unsafe Default (HS256) Allows Token Forgery and Auth Bypass
process.env. You'll be asked to provide them before it can run.DEV_ALLOW_FREE_LLM— true opens the paid tier for local dev only —PORT[](https://m8ven.ai/mcp/shoggi211-jsonaut-1cwwh7)