JSON Repair API MCP Server: Install & Setup

Install JSON Repair API in Claude Code

Claude Code

claude mcp add json-repair-api -e JSON_REPAIR_API_KEY=... -- npx -y json-repair-mcp

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "json-repair-api": {
      "command": "npx",
      "args": [
        "-y",
        "json-repair-mcp"
      ],
      "env": {
        "JSON_REPAIR_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the JSON Repair API MCP server do?

Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.

Is the JSON Repair API MCP server free?

Probably not entirely. The listing mentions pay-per-call, credits or a subscription. Check the provider for current pricing.

Does JSON Repair API run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add JSON Repair API to Claude Code?

Run: claude mcp add json-repair-api -e JSON_REPAIR_API_KEY=... -- npx -y json-repair-mcp

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