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