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jsonshim

Official registry AI and agents

Recovers malformed LLM JSON. MCP build: 218/300 on MALFORMED-300 (library build 282/300).

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package jsonshim-mcp
Claude Code 
claude mcp add jsonshim -- npx -y jsonshim-mcp@1.0.2
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "jsonshim": {
            "command": "npx",
            "args": [
                "-y",
                "jsonshim-mcp@1.0.2"
            ]
        }
    }
}

Frequently asked questions

What is jsonshim?

Recovers malformed LLM JSON. MCP build: 218/300 on MALFORMED-300 (library build 282/300).

How do I install jsonshim?

It runs on your machine. In Claude Code: claude mcp add jsonshim -- npx -y jsonshim-mcp@1.0.2. For other clients, paste the JSON configuration from this page into their MCP settings.

Does jsonshim need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains jsonshim?

It is published by org.toolkitlabs. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.