Schema | Proton MCP Server

Proton MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`PROTON_PASS`	Yes	Your Proton Mail Bridge password
`PROTON_USER`	Yes	Your Proton Mail email address used for Bridge authentication
`PROTON_IMAP_HOST`	Yes	IMAP server host for Proton Mail Bridge (usually 127.0.0.1)	127.0.0.1
`PROTON_IMAP_PORT`	Yes	IMAP server port for Proton Mail Bridge (usually 1143)	1143
`PROTON_SMTP_HOST`	Yes	SMTP server host for Proton Mail Bridge (usually 127.0.0.1)	127.0.0.1
`PROTON_SMTP_PORT`	Yes	SMTP server port for Proton Mail Bridge (usually 1025)	1025

Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.

This server publishes no instructions, or was last inspected before Glama recorded them.

Features and capabilities supported by this server

Protocol revision2025-11-25

Capability	Details
`tools`	{ "listChanged": true }

Functions exposed to the LLM to take actions

Name	Description
proton_list_foldersA	List all mailbox folders (INBOX, Sent, Drafts, Trash, etc.) with message counts and unread counts
proton_list_emailsA	List emails in a specific folder with pagination. Shows sender, subject, date, and read status. Results are newest first.
proton_search_emailsA	Search emails by sender, recipient, subject, date range, body content, or unread status. Multiple criteria are combined with AND logic.
proton_read_emailA	Read the complete content of an email, including headers, body, and attachments. Specify folder and email UID.
proton_send_emailC	Send a new email. Supports plain text and HTML formats. Recipients can be a single string or array of strings.
proton_reply_emailA	Send a reply to an existing email. Properly sets In-Reply-To and References headers for threading. Can reply to all or just the sender.
proton_move_emailA	Move an email from one folder to another. Specify source folder, email UID, and destination folder.
proton_delete_emailA	Delete an email by moving it to the Trash folder. Use the folder name and email UID.

Interactive templates invoked by user choice

Name	Description
No prompts

Contextual data attached and managed by the client

Name	Description
No resources

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