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The Model Context Protocol ecosystem, verified

Current spec 2026-07-28

caldav-mcp

Earlier Revision Publisher unverified Confidence: Good (0.85)

caldav-mcp is an MCP server published by dominik1001, 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 caldav-mcp support the current MCP specification (2026-07-28)?

Not yet confirmed. caldav-mcp 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 caldav-mcp a first-party (official) MCP server?

Undetermined. We have not verified the publisher relationship for caldav-mcp (as of 2026-08-20).

How do I connect to caldav-mcp?

caldav-mcp is available via the package npm:caldav-mcp, the official MCP Registry under io.github.dominik1001/caldav-mcp, the source repository at https://github.com/dominik1001/caldav-mcp. Authentication: unknown. Transports: stdio.

Does caldav-mcp support MCP revision 2025-11-25?

Yes. caldav-mcp supports MCP revision 2025-11-25 (checked 2026-08-20).

Does caldav-mcp support MCP revision 2026-07-28?

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

When were caldav-mcp's facts last verified?

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

CalDAV calendar operations (list, create, update, delete events) as MCP tools.

Which MCP spec revisions does caldav-mcp support?

caldav-mcp 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 caldav-mcp?

Ranked #214 in The MCP 500 with Adoption Index 50.53 (snapshot , methodology v1).

Measurement Value Source
Official MCP Registry yes API ·
Docker MCP Catalog no API ·
npm downloads (weekly) 358 API ·
GitHub stars 100 API ·
GitHub forks 33 API ·
Last push 2026-09-15T14:40:48Z API ·
Repository archived no API ·

Repository and package signals for caldav-mcp

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

Created
Open issues
13
Primary language
TypeScript
License (repository)
MIT
Continuous integration
Present
Tests
Present
Security policy
Present

Declared topics: caldav, mcp, mcp-server, typescript — author-declared on the repository, not our taxonomy.

Package (npm) as of

Latest version
0.10.0
Last published
First published
Releases
18
License (package)
MIT
Maintainers
1
Direct dependencies
3
Unpacked size
35 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.dominik1001/caldav-mcp at version 0.9.0 - lists package npm:caldav-mcp and repository https://github.com/dominik1001/caldav-mcp - accessed
  2. npm registry metadata for caldav-mcp at published version 0.10.0, 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