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Specification Enhancement Proposals (SEPs)
Index of all MCP Specification Enhancement Proposals
Specification Enhancement Proposals (SEPs) 是对 Model Context Protocol 提出重大变更的主要机制。每个 SEP 都针对所提议的特性提供简洁的技术规范和理由说明。
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Learn how to submit your own Specification Enhancement Proposal
概述
- Final: 42
全部 SEP
| SEP | Title | Status | Type | Created |
|---|---|---|---|---|
| SEP-2663 | Tasks Extension | Final | Extensions Track | 2026-04-27 |
| SEP-2640 | Skills Extension | Final | Extensions Track | 2026-04-23 |
| SEP-2596 | Specification Feature Lifecycle and Deprecation Policy | Final | Process | 2026-04-17 |
| SEP-2577 | Deprecate Roots, Sampling, and Logging | Final | Standards Track | 2026-04-14 |
| SEP-2575 | Make MCP Stateless | Final | Standards Track | 2025-06-18 |
| SEP-2567 | Sessionless MCP via Explicit State Handles | Final | Standards Track | 2026-03-11 |
| SEP-2549 | TTL for List Results | Final | Standards Track | 2026-04-09 |
| SEP-2484 | Require Conformance Tests for Standards Track SEPs to Reach Final Status | Final | Process | 2026-03-27 |
| SEP-2468 | Recommend Issuer (iss) Parameter in MCP Auth Responses | Final | Standards Track | 2026-03-25 |
| SEP-2322 | Multi Round-Trip Requests | Final | Standards Track | 2026-02-03 |
| SEP-2260 | Require Server requests to be associated with a Client request. | Final | Standards Track | 2026-02-16 |
| SEP-2243 | HTTP Header Standardization for Streamable HTTP Transport | Final | Standards Track | 2026-02-04 |
| SEP-2207 | OIDC-Flavored Refresh Token Guidance | Final | Standards Track | 2026-02-04 |
| SEP-2164 | Standardize Resource Not Found Error Code | Final | Standards Track | 2026-01-28 |
| SEP-2149 | MCP Group Governance and Charter Template | Final | Process | 2025-01-15 |
| SEP-2148 | MCP Contributor Ladder | Final | Process | 2026-01-15 |
| SEP-2133 | Extensions | Final | Standards Track | 2025-01-21 |
| SEP-2106 | Tools inputSchema & outputSchema Conform to JSON Schema 2020-12 | Final | Standards Track | 2026-01-06 |
| SEP-2085 | Governance Succession and Amendment Procedures | Final | Process | 2025-12-05 |
| SEP-1865 | MCP Apps - Interactive User Interfaces for MCP | Final | Extensions Track | 2025-11-21 |
| SEP-1850 | PR-Based SEP Workflow | Final | Process | 2025-11-20 |
| SEP-1730 | SDKs Tiering System | Final | Standards Track | 2025-10-29 |
| SEP-1699 | Support SSE polling via server-side disconnect | Final | Standards Track | 2025-10-22 |
| SEP-1686 | Tasks | Final | Standards Track | 2025-10-20 |
| SEP-1613 | Establish JSON Schema 2020-12 as Default Dialect for MCP | Final | Standards Track | 2025-10-06 |
| SEP-1577 | Sampling With Tools | Final | Standards Track | 2025-09-30 |
| SEP-1330 | Elicitation Enum Schema Improvements and Standards Compliance | Final | Standards Track | 2025-08-11 |
| SEP-1319 | Decouple Request Payload from RPC Methods Definition | Final | Standards Track | 2025-08-08 |
| SEP-1303 | Input Validation Errors as Tool Execution Errors | Final | Standards Track | 2025-08-05 |
| SEP-1302 | Formalize Working Groups and Interest Groups in MCP Governance | Final | Standards Track | 2025-08-05 |
| SEP-1046 | Support OAuth client credentials flow in authorization | Final | Standards Track | 2025-07-23 |
| SEP-1036 | URL Mode Elicitation for secure out-of-band interactions | Final | Standards Track | 2025-07-22 |
| SEP-1034 | Support default values for all primitive types in elicitation schemas | Final | Standards Track | 2025-07-22 |
| SEP-1024 | MCP Client Security Requirements for Local Server Installation | Final | Standards Track | 2025-07-22 |
| SEP-994 | Shared Communication Practices/Guidelines | Final | Process | 2025-07-17 |
| SEP-991 | Enable URL-based Client Registration using OAuth Client ID Metadata Documents | Final | Standards Track | 2025-07-07 |
| SEP-990 | Enable enterprise IdP policy controls during MCP OAuth flows | Final | Standards Track | 2025-06-04 |
| SEP-986 | Specify Format for Tool Names | Final | Standards Track | 2025-07-16 |
| SEP-985 | Align OAuth 2.0 Protected Resource Metadata with RFC 9728 | Final | Standards Track | 2025-07-16 |
| SEP-973 | Expose additional metadata for Implementations, Resources, Tools and Prompts | Final | Standards Track | 2025-07-15 |
| SEP-932 | Model Context Protocol Governance | Final | Process | 2025-07-08 |
| SEP-414 | Document OpenTelemetry Trace Context Propagation Conventions | Final | Standards Track | 2025-04-25 |
SEP 状态定义
| 状态 | 定义 |
|---|---|
| Draft | 已有发起人的 SEP 提案，正在进行非正式评审 |
| In-Review | SEP 提案已准备好接受核心维护者的正式评审 |
| Accepted | SEP 已接受，等待参考实现 |
| Final | SEP 已定稿，参考实现已完成 |
| Rejected | SEP 被核心维护者拒绝 |
| Withdrawn | SEP 被作者撤回 |
| Superseded | SEP 被更新的 SEP 取代 |
| Dormant | 无发起人的 SEP，在 6 个月后关闭 |