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