validate-json — Port 20 MCP Tool
validate-json
(validate json) is one of 31 tools on the
Port 20
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 Port 20 validate-json run in your project directory
- Claude Desktop Port 20 validate-json ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Port 20 validate-json ~/.cursor/mcp.json
- VS Code Port 20 validate-json .vscode/mcp.json
- Zed Port 20 validate-json ~/.config/zed/settings.json
- Windsurf Port 20 validate-json ~/.codeium/windsurf/mcp_config.json
- Cline Port 20 validate-json ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Port 20 validate-json ~/.gemini/settings.json
- Grok Port 20 validate-json .mcp.json (in your project root)
- ChatGPT Port 20 validate-json Settings → Connectors → Advanced → Developer mode
- Claude.ai Port 20 validate-json Settings → Connectors → Add custom connector
- LangChain Port 20 validate-json pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http port-20 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/port-20/mcpOther tools on this server
- port-20
- 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.