postcard_check_link_preview — Postcard MCP Tool
postcard_check_link_preview
(postcard check link preview) is one of 2 tools on the
Postcard
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call postcard_check_link_preview from your client
- Claude Code Postcard postcard_check_link_preview run in your project directory
- Claude Desktop Postcard postcard_check_link_preview ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Postcard postcard_check_link_preview ~/.cursor/mcp.json
- VS Code Postcard postcard_check_link_preview .vscode/mcp.json
- Zed Postcard postcard_check_link_preview ~/.config/zed/settings.json
- Windsurf Postcard postcard_check_link_preview ~/.codeium/windsurf/mcp_config.json
- Cline Postcard postcard_check_link_preview ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Postcard postcard_check_link_preview ~/.gemini/settings.json
- Grok Postcard postcard_check_link_preview .mcp.json (in your project root)
- ChatGPT Postcard postcard_check_link_preview Settings → Connectors → Advanced → Developer mode
- Claude.ai Postcard postcard_check_link_preview Settings → Connectors → Add custom connector
- LangChain Postcard postcard_check_link_preview pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http postcard https://postcard.clawhard.com/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 14 November 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.