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The Model Context Protocol ecosystem, verified

Current spec 2026-07-28

Microsoft 365 Calendar

Earlier Revision Publisher unverified Confidence: Good (0.85)

Microsoft 365 Calendar is an MCP server published by mindstone, verified on MCP revision 2025-11-25; support for the current revision (2026-07-28) is not yet confirmed. Last verified 2026-08-20.

Does Microsoft 365 Calendar support the current MCP specification (2026-07-28)?

Not yet confirmed. Microsoft 365 Calendar is verified on revision 2025-11-25; we have not confirmed support for the current revision (2026-07-28) as of 2026-08-20.

Is Microsoft 365 Calendar a first-party (official) MCP server?

Undetermined. We have not verified the publisher relationship for Microsoft 365 Calendar (as of 2026-08-20).

How do I connect to Microsoft 365 Calendar?

Microsoft 365 Calendar is available via the package npm:@mindstone/mcp-server-microsoft-calendar, the official MCP Registry under io.github.mindstone/mcp-server-microsoft-calendar, the source repository at https://github.com/mindstone/mcp-servers. Authentication: unknown. Transports: stdio.

Does Microsoft 365 Calendar support MCP revision 2025-11-25?

Yes. Microsoft 365 Calendar supports MCP revision 2025-11-25 (checked 2026-08-20).

Does Microsoft 365 Calendar support MCP revision 2026-07-28?

No. Microsoft 365 Calendar was checked against MCP revision 2026-07-28 and does not support it (checked 2026-08-20).

When were Microsoft 365 Calendar's facts last verified?

2026-08-20. Each fact on this page links to the sources used to verify it.

Microsoft 365 Outlook calendar via Graph: list, get, create, update, respond, free/busy.

Which MCP spec revisions does Microsoft 365 Calendar support?

Microsoft 365 Calendar has 2 verified spec-support records. Each row lists the revision, the verified status, the evidence URL, and the date that fact was last checked.

Spec revision Status Last checked Evidence
MCP 2025-11-25 Supported Source
MCP 2026-07-28 Not supported Source

How widely adopted is Microsoft 365 Calendar?

Not ranked in The MCP 500: insufficient public data (coverage floor not met) (snapshot ). The Adoption Index measures public signals only; it says nothing about quality.

Repository and package signals for Microsoft 365 Calendar

Measured directly from the source registries, not asserted from a document. Each figure carries the date it was read; none of it affects the verified spec status above.

Repository as of

Stars
10
Forks
4
Last pushed
(44 days ago)
Created
Open issues
22
Primary language
TypeScript
Continuous integration
Present
Tests
None detected
Security policy
Present

Package (npm) as of

Latest version
0.2.0
Last published
First published
Releases
4
License (package)
FSL-1.1-MIT
Maintainers
1
Direct dependencies
3
Unpacked size
144 KB
Registry signature
Signed
Build provenance
Attested

How was this verified, and what are the sources?

Verified · method: sdk-protocol-constant · confidence 0.85 (Good).

  1. Official MCP Registry record for io.github.mindstone/mcp-server-microsoft-calendar at version 0.2.0 - lists package npm:@mindstone/mcp-server-microsoft-calendar and repository https://github.com/mindstone/mcp-servers - accessed
  2. npm registry metadata for @mindstone/mcp-server-microsoft-calendar at published version 0.2.0, retrieved 2026-08-20 - declares a dependency on @modelcontextprotocol/sdk, which resolves to @modelcontextprotocol/sdk@1.30.0 - accessed
  3. Published artifact of @modelcontextprotocol/sdk@1.30.0, retrieved 2026-08-20 - the artifact declares LATEST_PROTOCOL_VERSION 2025-11-25 and carries no 2026-07-28 implementation. Read from the artifact itself, not from release notes - accessed