Schema | Yahoo Mail MCP Server

Yahoo Mail MCP Server

Describes the environment variables required to run the server.

Name	Required	Description	Default
`PORT`	No	Port for SSE mode (auto-set by Render)	3000
`NODE_ENV`	No	Environment: `development` or `production`	development
`YAHOO_EMAIL`	Yes	Your Yahoo Mail email address
`TRANSPORT_MODE`	No	Transport mode: `stdio` or `sse`	stdio
`OAUTH_CLIENT_ID`	No	OAuth 2.0 client ID for MCP server authentication (generate with `openssl rand -hex 16`)
`YAHOO_APP_PASSWORD`	Yes	16-character app-specific password from Yahoo
`OAUTH_CLIENT_SECRET`	No	OAuth 2.0 client secret for MCP server authentication (generate with `openssl rand -hex 32`)

Features and capabilities supported by this server

Capability	Details
`tools`	{}

Functions exposed to the LLM to take actions

Name	Description
list_emailsA	List recent emails from a Yahoo Mail folder. Returns UIDs (permanent identifiers) and enriched metadata including size, flags, and attachment status.
read_emailA	Read email content using UIDs (permanent identifiers). UIDs don't change when emails are deleted. Get UIDs from list_emails or search_emails.
search_emailsA	Search emails using UIDs with advanced filters. Returns UIDs which are permanent identifiers that don't change when emails are deleted. Get UIDs from results for subsequent operations.
delete_emailsA	Move emails to Trash folder using UIDs (soft delete, recoverable). UIDs are permanent identifiers.
archive_emailsA	Move emails to Archive folder using UIDs for long-term storage. UIDs are permanent identifiers.
mark_as_readB	Mark emails as read using UIDs. UIDs are permanent identifiers.
mark_as_unreadB	Mark emails as unread using UIDs. UIDs are permanent identifiers.
flag_emailsA	Flag emails as important/starred using UIDs. UIDs are permanent identifiers.
unflag_emailsA	Remove flag/star from emails using UIDs. UIDs are permanent identifiers.
move_emailsA	Move emails to a specified folder using UIDs. UIDs are permanent identifiers. Use list_folders to see available folders.
list_foldersA	List all available IMAP folders/mailboxes in your Yahoo Mail account

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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