usefulapi

Nylas MCP server. MCP server for Nylas — read email, calendars, events and contacts, and send email or create events.

Claude

Open Settings → Connectors → Add custom connector
Paste this URL:
https://nylas.usefulapi.io/mcp
Authenticate with Nylas when prompted

Cursor · VS Code · Windsurf · Cline

Add to your MCP config, then reload & authorize:

{
  "mcpServers": {
    "nylas": {
      "url": "https://nylas.usefulapi.io/mcp"
    }
  }
}

live17 toolsFree 100 tool calls / monthPro $9/mo · $90/yr

Tools 17

Tool	Type	What it does
`nylas_list_grants`	read	List grants List the connected accounts (grants) on your Nylas application, each with the grant_id used to scope every other email, calendar, and contacts tool.
`nylas_get_grant`	read	Get grant Get the details of a single connected account (grant) by id, including its provider and connection state.
`nylas_list_messages`	read	List messages List email messages for a connected account, filterable by subject, sender, recipient, folder, and unread or starred status.
`nylas_get_message`	read	Get message Get a single email message by id, including its headers, body, and metadata.
`nylas_list_folders`	read	List folders List the mail folders and labels for a connected account.
`nylas_list_calendars`	read	List calendars List the calendars on a connected account, each with the calendar_id used by the events tools.
`nylas_get_calendar`	read	Get calendar Get a single calendar by id, including its name, timezone, and metadata.
`nylas_list_events`	read	List events List events on a given calendar over an optional start/end time window, optionally including cancelled events.
`nylas_get_event`	read	Get event Get a single calendar event by id from a given calendar, including its time, participants, and location.
`nylas_list_contacts`	read	List contacts List contacts for a connected account, filterable by email address or phone number.
`nylas_get_contact`	read	Get contact Get a single contact by id, including names, email addresses, phone numbers, and other details.
`nylas_list_drafts`	read	List drafts List the saved draft emails on a connected account.
`nylas_send_message`	write	Send message Send a real email from a connected account to the given recipients, with optional cc, bcc, and reply-to-message threading — destructive.
`nylas_create_event`	write	Create event Create a calendar event on a given calendar with a title, start/end time, description, and location, optionally inviting participants.
`nylas_create_draft`	write	Create draft Create (but do not send) a draft email on a connected account — safe and additive.
`nylas_usage_status`	meta	Usage status (free-tier meter) Report the caller's current free-tier usage this month: calls used, monthly limit, remaining, and whether the cap is reached. Read-only; does not count against the meter.
`nylas_upgrade`	meta	Upgrade to Pro (unlimited) Subscribe to the Pro plan for UNLIMITED Nylas tool calls (the free tier caps monthly usage). Choose monthly ($9/month) or yearly ($90/year — 2 months free) billing. Returns a Stripe Checkout link to open in your browser; after payment your account upgrades automatically. Read-only; does not count against the meter.

Pricing

Plan	Price	Limit
Free	$0	100 tool calls / month
Pro	$9/mo · $90/yr	Unlimited

This is a Model Context Protocol endpoint — meant to be connected from an AI client, not opened in a browser. An invalid_token response at the URL is the auth gate working as designed; clients authenticate automatically.