Jmap MCP

Unclaimed

by wyattjoh

A Model Context Protocol (MCP) server that provides tools for interacting with JMAP (JSON Meta Application Protocol) email servers. Built with Deno and using the jmap-jam client library.

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Tools (40)

after

(optional): Only emails after date (ISO 8601 datetime)

allInThreadHaveKeyword

(optional): All emails in thread must have keyword

bcc

(optional): Array of BCC recipients

before

(optional): Only emails before date (ISO 8601 datetime)

body

(optional): Search in message body only

cc

(optional): Array of CC recipients

delete_emails

Delete emails permanently (cannot be undone). Prefer moving to Trash via

fetchEmails

(optional): Auto-fetch full email details for changed IDs

flagged

(optional): Mark as flagged (true) or unflagged (false)

from

(optional): Filter by sender email address

get_email_changes

Get IDs of emails created, updated, or destroyed since a previous state. Use the

get_emails

Retrieve specific emails by their IDs. Use properties to request only what you

get_mailboxes

List mailboxes/folders with their IDs, names, and metadata. Call this first

get_search_updates

Get changes within a previous search query since its queryState. Must use the

get_threads

Get email threads by their IDs. Thread IDs come from getemails responses

hasKeyword

(optional): Filter by keyword (e.g., $seen, $flagged)

htmlBody

(optional): HTML body

identityId

(optional): JMAP identity ID to send from (uses server default if

ids

Array of email IDs (1-50 IDs)

inMailbox

(optional): Mailbox ID to search within (get from getmailboxes)

limit

(optional): Max results (1-200, default: 100)

mailboxId

Target mailbox ID (get from getmailboxes)

mark_emails

Mark emails as read/unread or flagged/unflagged.

maxChanges

(optional): Max changes to return (1-500)

move_emails

Move emails to a different mailbox. Use getmailboxes to find the target

notKeyword

(optional): Exclude by keyword (e.g., $seen, $draft)

parentId

(optional): Filter by parent mailbox ID

position

(optional): Starting position for pagination

properties

(optional): Specific properties to return. Recommended sets:

query

(optional): Text search across all fields

reply_to_email

Reply to an existing email. Automatically sets To/CC, Re: subject prefix, and

search_emails

Search emails with filters. All filters are AND'd together. Returns only

seen

(optional): Mark as read (true) or unread (false)

send_email

Send a new email. Requires either textBody or htmlBody (or both).

sinceQueryState

queryState from a previous searchemails response

sinceState

State string from a previous getemails response

someInThreadHaveKeyword

(optional): At least one email in thread must have

subject

(optional): Filter by subject text

textBody

(optional): Plain text body

to

(optional): Filter by recipient email address