io.github.walkojas-boop/jsonshelf

up checked 2026-11-11T00:37:58.682Z

Unclaimed · Unverified

Publisher-provided title

JSONShelf

Publisher-provided description

Deterministic JSON repair, validate, example-gen, schema-coerce for agents. Zero LLM, sub-10ms.

Summary by lookupd

Repairs malformed JSON, validates it against schemas, coerces values to match types, and generates example instances, deterministically.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http jsonshelf https://jsonshelf.vercel.app/mcp

Codex, remote (streamable-http)

codex mcp add jsonshelf --url https://jsonshelf.vercel.app/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "jsonshelf": {
      "url": "https://jsonshelf.vercel.app/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Publisher-provided text

jsonshelf_repair Repair malformed JSON. Returns valid JSON plus a diff of what was fixed.
jsonshelf_validate Validate JSON against a schema. Returns structured errors with JSON Pointer paths and remedies.
jsonshelf_example Generate a minimal valid example matching a JSON schema.
jsonshelf_coerce Soft-cast values to match a schema (string "42" → 42 for integer fields, etc.).

Shows this live status and links here; updates hourly.

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