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Title: SEP-2567: Sessionless MCP via Explicit State Handles by pja-ant · Pull Request #2567 · modelcontextprotocol/modelcontextprotocol · GitHub

Open Graph Title: SEP-2567: Sessionless MCP via Explicit State Handles by pja-ant · Pull Request #2567 · modelcontextprotocol/modelcontextprotocol

X Title: SEP-2567: Sessionless MCP via Explicit State Handles by pja-ant · Pull Request #2567 · modelcontextprotocol/modelcontextprotocol

Description: Specification and documentation for the Model Context Protocol - SEP-2567: Sessionless MCP via Explicit State Handles by pja-ant · Pull Request #2567 · modelcontextprotocol/modelcontextprotocol

Open Graph Description: Summary Draft SEP proposing the removal of protocol-level sessions from MCP, replacing implicit session-scoped state with explicit, server-minted state handles. Builds on SEP-1442 (stateless-by-def...

X Description: Summary Draft SEP proposing the removal of protocol-level sessions from MCP, replacing implicit session-scoped state with explicit, server-minted state handles. Builds on SEP-1442 (stateless-by-def...

Opengraph URL: https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2567

X: @github

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Default draft protocol support: sessionless + handshake-less (SEP-2575 + SEP-2567) modelcontextprotocol/csharp-sdk#1610 https://github.com/modelcontextprotocol/csharp-sdk/pull/1610
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Implement SEP-2567: Sessionless MCP via Explicit State Handles modelcontextprotocol/swift-sdk#244 https://github.com/modelcontextprotocol/swift-sdk/issues/244
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[MCP: SEP Tracker] Week of 2026-06-29 jeffhandley/dotnet-vitals-servicing-release-manager#27 https://github.com/jeffhandley/dotnet-vitals-servicing-release-manager/issues/27
platform: mint an explicit session handle from platform_info and require it on all tool calls (MCP 2026-07-28 sessionless readiness) txn2/mcp-data-platform#792 https://github.com/txn2/mcp-data-platform/issues/792
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