MCP server portals support the stateless MCP 2026-07-28 specification for client and upstream server connections. The portal’s /mcp endpoint automatically accepts stateless MCP 2026-07-28 requests and earlier 2025 Streamable HTTP clients. When the portal connects to an upstream Streamable HTTP server, it checks for MCP 2026-07-28 support and falls back to the 2025 handshake when needed.
Cloudflare One, Access - MCP server portals support MCP 2026-07-28 specification
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August 25, 2026
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cloudflare