validate-json — Utility 89 MCP Tool
validate-json
(validate json) is one of 31 tools on the
Utility 89
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call validate-json from your client
- Claude Code Utility 89 validate-json run in your project directory
- Claude Desktop Utility 89 validate-json ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Utility 89 validate-json ~/.cursor/mcp.json
- VS Code Utility 89 validate-json .vscode/mcp.json
- Zed Utility 89 validate-json ~/.config/zed/settings.json
- Windsurf Utility 89 validate-json ~/.codeium/windsurf/mcp_config.json
- Cline Utility 89 validate-json ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Utility 89 validate-json ~/.gemini/settings.json
- Grok Utility 89 validate-json .mcp.json (in your project root)
- ChatGPT Utility 89 validate-json Settings → Connectors → Advanced → Developer mode
- Claude.ai Utility 89 validate-json Settings → Connectors → Add custom connector
- LangChain Utility 89 validate-json pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http util-089 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-089/mcpOther tools on this server
- util-089
- utc-time
- timezone
- normalize-url
- inspect-robots
- domain-shape
- citation
- compatibility
- status-catalog
- iana-zones
- web-fetch
- fetch-status
- github-repo-shape
- weather-hint
- memory-key-count
- file-path-ok
- browser-url-ok
- think-steps
- search-query-len
- hn-front-count
- lib-docs-hint
- playwright-url-ok
- figma-url-shape
- jira-key-shape
- geo-hint
- calc-eval
- wiki-title-ok
- agent-tool-index
- people-search-index
- agent-ads-index
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.