Json Repair MCP server
Repairs malformed JSON from LLM output, validated against a schema. Paid per call via Stripe.
42 downloads/wk
Reviews
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If you have run it, two minutes of your experience saves the next person an afternoon.
Json Repair tools (1)
write = sends, deletes, buys or postsRead from the package source without running it. The installed server may list more.
repair_jsonRepairs malformed JSON text (trailing commas, single quotes, unquoted keys, missing braces, markdown-fenced LLM output, etc.) and optionally validates the result against a JSON Schema. This is a paid tool: requires a JSON_REPAIR_API_KEY environment variable obtained by visiting the /signup endpoint of the API once.
Public scan report
scanner v0.1.5 · 2026-09-19 · same rubric, same numbers if you re-run it
- Code scan5 source files scanned25/25
- –Live reliabilityno gateway calls yet and no remote to proben/a
- –Tool poisoningtools not inspected (local package is not executed); not countedn/a
- Auth qualitystatic API keys via environment variables6/15
- Maintenancerepository not readable: repo not found3/15
- Maintainer identityno repository or website to verify2/10
Install directly
Runs npx -y json-repair-mcp on your machine. Read the scan report first; the gateway never runs local packages.
claude mcp add json-repair-mcp -- npx -y json-repair-mcp
Json Repair: common questions
- Is Json Repair MCP server safe?
- With care: it is graded C, so read the findings first (55/100). Read the Json Repair safety report
- How do I install Json Repair?
- It runs on your machine. Copy the Claude Code, Claude Desktop or Cursor config from the install section.
- Does Json Repair need an API key?
- Yes. The registry entry asks for
JSON_REPAIR_API_KEY. - Is Json Repair maintained?
- The latest release is v1.0.1.
- What can I use instead of Json Repair?
- Servers from other publishers that do the same job: COTAL actions (cotal.ai) MCP server, HasData Walmart MCP server and Savvly MCP server. Compare all Json Repair alternatives.
Alternatives to Json Repair
Same job from other publishers: the closest match first, then the best rated.
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