validate-json — Nil UUID constant MCP Tool
validate-json
(validate json) is one of 31 tools on the
Nil UUID constant
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 Nil UUID constant validate-json run in your project directory
- Claude Desktop Nil UUID constant validate-json ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Nil UUID constant validate-json ~/.cursor/mcp.json
- VS Code Nil UUID constant validate-json .vscode/mcp.json
- Zed Nil UUID constant validate-json ~/.config/zed/settings.json
- Windsurf Nil UUID constant validate-json ~/.codeium/windsurf/mcp_config.json
- Cline Nil UUID constant validate-json ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Nil UUID constant validate-json ~/.gemini/settings.json
- Grok Nil UUID constant validate-json .mcp.json (in your project root)
- ChatGPT Nil UUID constant validate-json Settings → Connectors → Advanced → Developer mode
- Claude.ai Nil UUID constant validate-json Settings → Connectors → Add custom connector
- LangChain Nil UUID constant validate-json pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http uuid-nil https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/uuid-nil/mcpOther tools on this server
- uuid-nil
- 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.