compatibility — HTTP 403 forbidden MCP Tool
compatibility
(compatibility) is one of 31 tools on the
HTTP 403 forbidden
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call compatibility from your client
- Claude Code HTTP 403 forbidden compatibility run in your project directory
- Claude Desktop HTTP 403 forbidden compatibility ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor HTTP 403 forbidden compatibility ~/.cursor/mcp.json
- VS Code HTTP 403 forbidden compatibility .vscode/mcp.json
- Zed HTTP 403 forbidden compatibility ~/.config/zed/settings.json
- Windsurf HTTP 403 forbidden compatibility ~/.codeium/windsurf/mcp_config.json
- Cline HTTP 403 forbidden compatibility ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI HTTP 403 forbidden compatibility ~/.gemini/settings.json
- Grok HTTP 403 forbidden compatibility .mcp.json (in your project root)
- ChatGPT HTTP 403 forbidden compatibility Settings → Connectors → Advanced → Developer mode
- Claude.ai HTTP 403 forbidden compatibility Settings → Connectors → Add custom connector
- LangChain HTTP 403 forbidden compatibility pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http http-403 https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/http-403/mcpOther tools on this server
- http-403
- utc-time
- timezone
- validate-json
- normalize-url
- inspect-robots
- domain-shape
- citation
- 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.