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Apple Mail

io.github.JonathanRReed/apple-mcp-mailv1.0.2Email

Read, search, compose, and send emails via Apple Mail on macOS.

In-path gate · all MCP tools

Using Apple Mail in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts-before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

uv tool install mcpindex-gate && mcpindex-config-wire
Auditable install path →Watch it hold a drift →
Trust verdict · v1 advisory · method
NOT YET SCREENEDno verdict on file

Verdict not yet evaluated for this tool. The semantic screen takes adversarial cases first; coverage rolls out as the corpus expands (15/150 labels to graduation). The deterministic conformance probe is built but has not yet run on the public corpus, so a recorded verdict here is REVIEW or UNVERIFIED, never a clearing ALLOW. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: the eval, four-state verdict, honest limits.

Own this server? Screen its description →

That verdict was true at screening time (snapshot 2026-08-05).

Contracts can change after screening, with no version bump. The gate pins Apple Mail’s tool contracts on first sight and holds any silent change before your agent acts - the check that keeps being true on Tuesday.

See your first HOLD in 2 minutes →

Related: how to trust an MCP server · screen before install · silent contract drift

Environment variables
APPLE_MAIL_MCP_SAFETY_PROFILE

Safety mode for Mail operations: safe_readonly, safe_manage, or full_access.

APPLE_MAIL_MCP_ALLOWED_ATTACHMENT_ROOT

Directory attachments may be saved to or attached from. Unset disables attachment file access.

APPLE_MAIL_MCP_VISIBLE_DRAFTS

Whether compose tools open visible draft windows in Mail.app.

MCP quality score · maturity, not trust · methodology
freshness
25
completeness
20
installability
25
documentation
15
stability
10
Alternatives in Email
Mermail
app.mermail/mcp

Email inbox API for AI agents: read, search, draft, send, and triage mail over Streamable HTTP.

MCP Emails
com.mcpemails/emails

Read, search, send, organize, draft and schedule email across your inboxes from any MCP client.

MailboxValidator
io.github.MailboxValidator/mcp-mailboxvalidator

Email validation MCP server using the MailboxValidator API. It can validate email addresses.