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The Model Context Protocol ecosystem, verified

Current spec 2026-07-28

emailmd

Earlier Revision Publisher unverified Confidence: Good (0.85)

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

Does emailmd support the current MCP specification (2026-07-28)?

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

Is emailmd a first-party (official) MCP server?

Undetermined. We have not verified the publisher relationship for emailmd (as of 2026-08-25).

How do I connect to emailmd?

emailmd is available via a hosted remote endpoint at https://www.emailmd.dev/api/mcp, the package npm:emailmd, the official MCP Registry under dev.emailmd/emailmd, the source repository at https://github.com/anypost/emailmd. Authentication: none. Transports: sse-legacy.

What tools does emailmd expose?

emailmd exposes 3 tools, including render, lint, read_docs (last verified 2026-08-25).

Does emailmd support MCP revision 2025-11-25?

Yes. emailmd supports MCP revision 2025-11-25 (checked 2026-08-25).

When were emailmd's facts last verified?

2026-08-25. Each fact on this page links to the sources used to verify it.

Which tools does emailmd expose?

3 tools verified.

  • render
  • lint
  • read_docs

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Which MCP spec revisions does emailmd support?

emailmd has 1 verified spec-support record. 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

How widely adopted is emailmd?

Ranked #65 in The MCP 500 with Adoption Index 58.59 (snapshot , methodology v1).

Measurement Value Source
Official MCP Registry yes API ·
Docker MCP Catalog no API ·
npm downloads (weekly) 4,148 API ·
GitHub stars 1,373 API ·
GitHub forks 41 API ·
Last push 2026-08-26T19:42:32Z API ·
Repository archived no API ·

Repository and package signals for emailmd

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
1
Primary language
TypeScript
License (repository)
MIT
Continuous integration
Present
Tests
None detected
Security policy
None

Package (npm) as of

Latest version
0.10.0
Last published
First published
Releases
26
License (package)
MIT
Maintainers
1
Direct dependencies
15
Unpacked size
482 KB
Registry signature
Signed
Build provenance
Attested

How was this verified, and what are the sources?

Verified · method: endpoint-probe · confidence 0.85 (Good).

  1. Official MCP Registry record for dev.emailmd/emailmd at version 0.9.1 - lists remote endpoint https://www.emailmd.dev/api/mcp and repository https://github.com/anypost/emailmd - accessed
  2. Endpoint probe of https://www.emailmd.dev/api/mcp - declined server/discover; negotiated 2025-11-25 via the legacy initialize handshake; tools/list returned 3 tools - accessed
  3. Staleness re-verification via the GitHub API - repository anypost/emailmd active (pushed 2026-07-26, not archived), latest release v0.10.0 (2026-07-26); entity facts unchanged - accessed
  4. Endpoint re-probe - server/discover at 2026-07-28 again rejected with error -32000 "Unsupported protocol version: 2026-07-28 (supported versions: 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05, 2024-10-07)"; legacy status unchanged - accessed
  5. Endpoint probe of https://www.emailmd.dev/api/mcp - declined server/discover; negotiated 2025-11-25 via the legacy initialize handshake; tools/list returned 3 tools - accessed