# jsonaut MCP server

Repair malformed JSON from LLM/agent output; optional JSON Schema coercion. Free + x402 paid.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-shoggi211-jsonaut
- Repository: https://github.com/shoggi211/jsonaut
- Website: https://jsonaut.jsonaut-shaurya.workers.dev

## Install
- Endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp
- Auth: Not captured

## Setup notes
- Remote endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp

## Tools
- repair_json - Repair malformed JSON (trailing commas, single quotes, truncation, markdown fences, comments, python literals) and optionally validate/coerce it against a JSON Schema. Deterministic repair is free. If it fails and allow_llm_fallback is true, a paid LLM repair is attempted (requires x402 payment; charged only on success). Endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp
- validate_json - Validate a JSON string against a JSON Schema. Free. Returns validity and a list of violations. Endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp
- extract_json - Extract JSON embedded in arbitrary text — LLM prose, chat messages, logs, emails — then repair and validate it. Deterministic extraction is free. If no JSON can be located and allow_llm_fallback is true, a paid LLM extracts structured data from the text (requires x402 payment; charged only on success). Pass a JSON Schema to shape the output. Endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp
- infer_schema - Infer a JSON Schema (draft 2020-12) from an example JSON value. Free and deterministic. Set as_samples=true when the input is an array of example objects of the same shape to merge them into one schema. Turns sample agent/tool output into a reusable schema. Endpoint: https://jsonaut.jsonaut-shaurya.workers.dev/mcp

## Resources
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## Prompts
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## Metadata
- Owner: io.github.shoggi211
- Version: 0.1.0
- Runtime: Streamable Http
- Transports: HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Jul 2, 2026
- Source: https://registry.modelcontextprotocol.io