Model Context Protocol

Name: Model Context Protocol
Author: Anthropic

Developer Tools

An open protocol for connecting AI applications to external tools, data and context.

Latest 2026-07-28 · Jul 28, 2026by AnthropicWritten in TypeScriptWebsite modelcontextprotocol/modelcontextprotocol RSS

Release activity

Release activity — 4 releases across 4 days in the last year. Each cell is one day; darker means more releases that day. Older weeks are hidden at this screen width.
	Sep			Oct				Nov					Dec				Jan				Feb				Mar					Apr				May					Jun				Jul				Aug					Sep
Sunday	No releases on Sep 14, 2025	No releases on Sep 21, 2025	No releases on Sep 28, 2025	No releases on Oct 5, 2025	No releases on Oct 12, 2025	No releases on Oct 19, 2025	No releases on Oct 26, 2025	No releases on Nov 2, 2025	No releases on Nov 9, 2025	No releases on Nov 16, 2025	No releases on Nov 23, 2025	No releases on Nov 30, 2025	No releases on Dec 7, 2025	No releases on Dec 14, 2025	No releases on Dec 21, 2025	No releases on Dec 28, 2025	No releases on Jan 4, 2026	No releases on Jan 11, 2026	No releases on Jan 18, 2026	No releases on Jan 25, 2026	No releases on Feb 1, 2026	No releases on Feb 8, 2026	No releases on Feb 15, 2026	No releases on Feb 22, 2026	No releases on Mar 1, 2026	No releases on Mar 8, 2026	No releases on Mar 15, 2026	No releases on Mar 22, 2026	No releases on Mar 29, 2026	No releases on Apr 5, 2026	No releases on Apr 12, 2026	No releases on Apr 19, 2026	No releases on Apr 26, 2026	No releases on May 3, 2026	No releases on May 10, 2026	No releases on May 17, 2026	No releases on May 24, 2026	No releases on May 31, 2026	No releases on Jun 7, 2026	No releases on Jun 14, 2026	No releases on Jun 21, 2026	No releases on Jun 28, 2026	No releases on Jul 5, 2026	No releases on Jul 12, 2026	No releases on Jul 19, 2026	No releases on Jul 26, 2026	No releases on Aug 2, 2026	No releases on Aug 9, 2026	No releases on Aug 16, 2026	No releases on Aug 23, 2026	No releases on Aug 30, 2026	No releases on Sep 6, 2026	No releases on Sep 13, 2026
Monday	No releases on Sep 15, 2025	No releases on Sep 22, 2025	No releases on Sep 29, 2025	No releases on Oct 6, 2025	No releases on Oct 13, 2025	No releases on Oct 20, 2025	No releases on Oct 27, 2025	No releases on Nov 3, 2025	No releases on Nov 10, 2025	No releases on Nov 17, 2025	No releases on Nov 24, 2025	No releases on Dec 1, 2025	No releases on Dec 8, 2025	No releases on Dec 15, 2025	No releases on Dec 22, 2025	No releases on Dec 29, 2025	No releases on Jan 5, 2026	No releases on Jan 12, 2026	No releases on Jan 19, 2026	No releases on Jan 26, 2026	No releases on Feb 2, 2026	No releases on Feb 9, 2026	No releases on Feb 16, 2026	No releases on Feb 23, 2026	No releases on Mar 2, 2026	No releases on Mar 9, 2026	No releases on Mar 16, 2026	No releases on Mar 23, 2026	No releases on Mar 30, 2026	No releases on Apr 6, 2026	No releases on Apr 13, 2026	No releases on Apr 20, 2026	No releases on Apr 27, 2026	No releases on May 4, 2026	No releases on May 11, 2026	No releases on May 18, 2026	No releases on May 25, 2026	No releases on Jun 1, 2026	No releases on Jun 8, 2026	No releases on Jun 15, 2026	No releases on Jun 22, 2026	No releases on Jun 29, 2026	No releases on Jul 6, 2026	No releases on Jul 13, 2026	No releases on Jul 20, 2026	No releases on Jul 27, 2026	No releases on Aug 3, 2026	No releases on Aug 10, 2026	No releases on Aug 17, 2026	No releases on Aug 24, 2026	No releases on Aug 31, 2026	No releases on Sep 7, 2026	No releases on Sep 14, 2026
Tuesday	No releases on Sep 16, 2025	No releases on Sep 23, 2025	No releases on Sep 30, 2025	No releases on Oct 7, 2025	No releases on Oct 14, 2025	No releases on Oct 21, 2025	No releases on Oct 28, 2025	No releases on Nov 4, 2025	No releases on Nov 11, 2025	No releases on Nov 18, 2025	1 release on Nov 25, 2025	No releases on Dec 2, 2025	No releases on Dec 9, 2025	No releases on Dec 16, 2025	No releases on Dec 23, 2025	No releases on Dec 30, 2025	No releases on Jan 6, 2026	No releases on Jan 13, 2026	No releases on Jan 20, 2026	No releases on Jan 27, 2026	No releases on Feb 3, 2026	No releases on Feb 10, 2026	No releases on Feb 17, 2026	No releases on Feb 24, 2026	No releases on Mar 3, 2026	No releases on Mar 10, 2026	No releases on Mar 17, 2026	No releases on Mar 24, 2026	No releases on Mar 31, 2026	No releases on Apr 7, 2026	No releases on Apr 14, 2026	No releases on Apr 21, 2026	No releases on Apr 28, 2026	No releases on May 5, 2026	No releases on May 12, 2026	No releases on May 19, 2026	No releases on May 26, 2026	No releases on Jun 2, 2026	No releases on Jun 9, 2026	No releases on Jun 16, 2026	No releases on Jun 23, 2026	No releases on Jun 30, 2026	No releases on Jul 7, 2026	No releases on Jul 14, 2026	No releases on Jul 21, 2026	1 release on Jul 28, 2026	No releases on Aug 4, 2026	No releases on Aug 11, 2026	No releases on Aug 18, 2026	No releases on Aug 25, 2026	No releases on Sep 1, 2026	No releases on Sep 8, 2026
Wednesday	No releases on Sep 17, 2025	No releases on Sep 24, 2025	No releases on Oct 1, 2025	No releases on Oct 8, 2025	No releases on Oct 15, 2025	No releases on Oct 22, 2025	No releases on Oct 29, 2025	No releases on Nov 5, 2025	No releases on Nov 12, 2025	No releases on Nov 19, 2025	No releases on Nov 26, 2025	No releases on Dec 3, 2025	No releases on Dec 10, 2025	No releases on Dec 17, 2025	No releases on Dec 24, 2025	No releases on Dec 31, 2025	No releases on Jan 7, 2026	No releases on Jan 14, 2026	No releases on Jan 21, 2026	No releases on Jan 28, 2026	No releases on Feb 4, 2026	No releases on Feb 11, 2026	No releases on Feb 18, 2026	No releases on Feb 25, 2026	No releases on Mar 4, 2026	No releases on Mar 11, 2026	No releases on Mar 18, 2026	No releases on Mar 25, 2026	No releases on Apr 1, 2026	No releases on Apr 8, 2026	No releases on Apr 15, 2026	No releases on Apr 22, 2026	No releases on Apr 29, 2026	No releases on May 6, 2026	No releases on May 13, 2026	No releases on May 20, 2026	No releases on May 27, 2026	No releases on Jun 3, 2026	No releases on Jun 10, 2026	No releases on Jun 17, 2026	No releases on Jun 24, 2026	No releases on Jul 1, 2026	No releases on Jul 8, 2026	No releases on Jul 15, 2026	No releases on Jul 22, 2026	No releases on Jul 29, 2026	No releases on Aug 5, 2026	No releases on Aug 12, 2026	No releases on Aug 19, 2026	No releases on Aug 26, 2026	No releases on Sep 2, 2026	No releases on Sep 9, 2026
Thursday	No releases on Sep 18, 2025	No releases on Sep 25, 2025	No releases on Oct 2, 2025	No releases on Oct 9, 2025	No releases on Oct 16, 2025	No releases on Oct 23, 2025	No releases on Oct 30, 2025	No releases on Nov 6, 2025	No releases on Nov 13, 2025	No releases on Nov 20, 2025	No releases on Nov 27, 2025	No releases on Dec 4, 2025	No releases on Dec 11, 2025	No releases on Dec 18, 2025	No releases on Dec 25, 2025	No releases on Jan 1, 2026	No releases on Jan 8, 2026	No releases on Jan 15, 2026	No releases on Jan 22, 2026	No releases on Jan 29, 2026	No releases on Feb 5, 2026	No releases on Feb 12, 2026	No releases on Feb 19, 2026	No releases on Feb 26, 2026	No releases on Mar 5, 2026	No releases on Mar 12, 2026	No releases on Mar 19, 2026	No releases on Mar 26, 2026	No releases on Apr 2, 2026	No releases on Apr 9, 2026	No releases on Apr 16, 2026	No releases on Apr 23, 2026	No releases on Apr 30, 2026	No releases on May 7, 2026	No releases on May 14, 2026	No releases on May 21, 2026	No releases on May 28, 2026	No releases on Jun 4, 2026	No releases on Jun 11, 2026	No releases on Jun 18, 2026	No releases on Jun 25, 2026	No releases on Jul 2, 2026	No releases on Jul 9, 2026	No releases on Jul 16, 2026	No releases on Jul 23, 2026	No releases on Jul 30, 2026	No releases on Aug 6, 2026	No releases on Aug 13, 2026	No releases on Aug 20, 2026	No releases on Aug 27, 2026	No releases on Sep 3, 2026	No releases on Sep 10, 2026
Friday	No releases on Sep 19, 2025	No releases on Sep 26, 2025	No releases on Oct 3, 2025	No releases on Oct 10, 2025	No releases on Oct 17, 2025	No releases on Oct 24, 2025	No releases on Oct 31, 2025	No releases on Nov 7, 2025	No releases on Nov 14, 2025	No releases on Nov 21, 2025	No releases on Nov 28, 2025	No releases on Dec 5, 2025	No releases on Dec 12, 2025	No releases on Dec 19, 2025	No releases on Dec 26, 2025	No releases on Jan 2, 2026	No releases on Jan 9, 2026	No releases on Jan 16, 2026	No releases on Jan 23, 2026	No releases on Jan 30, 2026	No releases on Feb 6, 2026	No releases on Feb 13, 2026	No releases on Feb 20, 2026	No releases on Feb 27, 2026	No releases on Mar 6, 2026	No releases on Mar 13, 2026	No releases on Mar 20, 2026	No releases on Mar 27, 2026	No releases on Apr 3, 2026	No releases on Apr 10, 2026	No releases on Apr 17, 2026	No releases on Apr 24, 2026	No releases on May 1, 2026	No releases on May 8, 2026	No releases on May 15, 2026	No releases on May 22, 2026	1 release on May 29, 2026	No releases on Jun 5, 2026	No releases on Jun 12, 2026	No releases on Jun 19, 2026	No releases on Jun 26, 2026	No releases on Jul 3, 2026	No releases on Jul 10, 2026	No releases on Jul 17, 2026	No releases on Jul 24, 2026	No releases on Jul 31, 2026	No releases on Aug 7, 2026	No releases on Aug 14, 2026	No releases on Aug 21, 2026	No releases on Aug 28, 2026	No releases on Sep 4, 2026	No releases on Sep 11, 2026
Saturday	No releases on Sep 20, 2025	No releases on Sep 27, 2025	No releases on Oct 4, 2025	No releases on Oct 11, 2025	No releases on Oct 18, 2025	No releases on Oct 25, 2025	No releases on Nov 1, 2025	No releases on Nov 8, 2025	1 release on Nov 15, 2025	No releases on Nov 22, 2025	No releases on Nov 29, 2025	No releases on Dec 6, 2025	No releases on Dec 13, 2025	No releases on Dec 20, 2025	No releases on Dec 27, 2025	No releases on Jan 3, 2026	No releases on Jan 10, 2026	No releases on Jan 17, 2026	No releases on Jan 24, 2026	No releases on Jan 31, 2026	No releases on Feb 7, 2026	No releases on Feb 14, 2026	No releases on Feb 21, 2026	No releases on Feb 28, 2026	No releases on Mar 7, 2026	No releases on Mar 14, 2026	No releases on Mar 21, 2026	No releases on Mar 28, 2026	No releases on Apr 4, 2026	No releases on Apr 11, 2026	No releases on Apr 18, 2026	No releases on Apr 25, 2026	No releases on May 2, 2026	No releases on May 9, 2026	No releases on May 16, 2026	No releases on May 23, 2026	No releases on May 30, 2026	No releases on Jun 6, 2026	No releases on Jun 13, 2026	No releases on Jun 20, 2026	No releases on Jun 27, 2026	No releases on Jul 4, 2026	No releases on Jul 11, 2026	No releases on Jul 18, 2026	No releases on Jul 25, 2026	No releases on Aug 1, 2026	No releases on Aug 8, 2026	No releases on Aug 15, 2026	No releases on Aug 22, 2026	No releases on Aug 29, 2026	No releases on Sep 5, 2026	No releases on Sep 12, 2026

4 releases in the last year

Changelog

2026-07-28

LatestJul 28, 2026 · about 2 months ago

This release marks the stable release of the 2026-07-28 revision of the Model Context Protocol.

The specification is available on the official Model Context Protocol website.

For a detailed overview of changes, see 2026-07-28 changelog.

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2026-07-28-RCPre-releaseMay 29, 2026 · 4 months ago

2026-07-28 RC

This release marks the release candidate (RC) 2026-07-28 revision of the Model Context Protocol.

The specification is available in draft form.

For a detailed overview of changes, see 2026-07-28 draft changelog.

[!NOTE] To users and implementers: this specification is not final. Changes may be introduced between the RC and the final release. SDKs will adopt this version at their own pace, and the prior version of the spec may remain in use for an undetermined amount of time.

Refer to the Version Negotiation documentation to learn about the process for clients and servers to determine the version of the protocol being used.

View originalPermalink

2025-11-25

Nov 25, 2025 · 10 months ago

Added 1

Stable release of the 2025-11-25 revision of the Model Context Protocol specification

From Model Context Protocol

This release marks the stable release of the 2025-11-25 revision of the Model Context Protocol.

The specification is available on the official Model Context Protocol website.

For a detailed overview of changes, see 2025-11-25 changelog.

View originalPermalink

2025-11-25-RC

Pre-releaseNov 15, 2025 · 10 months ago

This release marks the release candidate (RC) 2025-11-25 revision of the Model Context Protocol.

The specification is available in draft form.

For a detailed overview of changes, see 2025-11-25 draft changelog.

[!NOTE] To users and implementers: this specification is not final. Changes may be introduced between the RC and the final release. SDKs will adopt this version at their own pace, and the prior version of the spec may remain in use for an undetermined amount of time.

Refer to the Version Negotiation documentation to learn about the process for clients and servers to determine the version of the protocol being used.

View originalPermalink

2025-06-18

Jun 18, 2025 · about 1 year ago

This release marks the initial 2025-06-18 revision of the Model Context Protocol.

For a detailed overview of changes, see 2025-06-18 changelog.

To users and implementors: note that SDKs will adopt this version at their own pace, and the prior version of the spec may remain in use for an undetermined amount of time. The spec describes how clients and servers perform version negotiation with one another, permitting backwards and forwards compatibility.

View originalPermalink

2025-03-26

Mar 26, 2025 · over 1 year ago

This release marks the initial 2025-03-26 revision of the Model Context Protocol.

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2024-11-05-final

Mar 26, 2025 · over 1 year ago

This release marks the final 2024-11-05 revision of the Model Context Protocol, including all backwards compatible changes made since the initial 2024-11-05 release.