{"name":"com.clawhard/postcard","title":"Postcard","version":"1.0.0","transport":"streamable-http","endpoint":"https://postcard.clawhard.com/mcp","method":"POST","auth":"none","docs":"https://postcard.clawhard.com/llms.txt","serverCard":"https://postcard.clawhard.com/.well-known/mcp/server-card.json","tools":["postcard_check_link_preview","postcard_check_preview_tags"]}