https://agentshare.dev/registry registers one native WebMCP tool, search_listings , when Chrome exposes document.modelContext . The same directory stays available to agents that never open a browser, through remote MCP at https://agentshare.dev/mcp .

WebMCP is the browser API. A page calls document.modelContext.registerTool . An agent in that Chrome tab calls the tool and gets JSON back. The tool lives only while the tab is open. Closing the tab drops it.

Two ways to read the same registry

Remote MCP Native WebMCP

Where https://agentshare.dev/mcp https://agentshare.dev/registry , tab open

Call style Streamable HTTP. API key or x402 document.modelContext in Chrome

Lifetime The server stays up Ends when the tab closes

Payload The MCP tool list, including paid Objective Trust search_listings only. Public fields. At most 5 matches

Remote MCP is the path for an agent that is not sitting on the page.…