Cloudflare One, Access - MCP server portals support MCP 2026-07-28 specification

<p><a href="https://developers.cloudflare.com/cloudflare-one/access-controls/ai-controls/mcp-portals/">MCP server portals</a> support the stateless MCP <code>2026-07-28</code> specification for client and upstream server connections.</p> <p>The portal's <code>/mcp</code> endpoint automatically accepts stateless MCP <code>2026-07-28</code> requests and earlier 2025 Streamable HTTP clients. When the portal connects to an upstream Streamable HTTP server, it checks for MCP <code>2026-07-28</code> support and falls back to the 2025 handshake when needed. Client and upstream protocol selection are independent, so clients and servers can upgrade separately without portal configuration changes.</p> <p>SSE connections continue to use the legacy protocol. For details, refer to <a href="https://developers.cloudflare.com/cloudflare-one/access-controls/ai-controls/mcp-portals/#transport">MCP server portal transport and protocol compatibility</a>.</p>