MCP server for Nylas — read email, calendars, events and contacts, and send email or create events. Hosted by usefulapi: connect it to Claude, ChatGPT, Cursor or any MCP client.
Turn on the Nylas connector, then ask in plain words. The AI picks the tools.
For people who want an AI to work with their connected email, calendar and contacts through Nylas.
The AI lists messages with the available filters and opens single messages, so you get a summary of what a person wants or what arrived today.
The AI lists your calendars and the events in one calendar, and opens an event for details, so you see your meetings.
The AI lists contacts with an email or phone filter and opens a single contact for its details.
The AI creates a draft email, for example to confirm a meeting. A draft is not sent, and you can list your drafts to review it.
Changes dataThe AI sends a real email from the connected account, or creates a calendar event that may send invites to participants.
Changes dataThe login page asks for your Nylas API key and Region.
Optional: Default grant id.
Find your API key in the Nylas dashboard → API keys, and pick the region your Nylas application lives in. A default grant id is optional — you can set one now or pass grant_id per call (list connected accounts with nylas_list_grants). Your API key is used only to call the API on your behalf and to derive a private account id; it is never shown to anyone.
Team and Enterprise: an Owner adds the connector for the organization first.
No Add custom MCP server option? It depends on your account or workspace settings: see OpenAI's guide.
Run this command, then run /mcp in Claude Code to log in:
Add to Cursor or add this to ~/.cursor/mcp.json:
{
"mcpServers": {
"nylas": {
"url": "https://nylas.usefulapi.io/mcp"
}
}
} Add to VS Code or add this to .vscode/mcp.json:
{
"servers": {
"nylas": {
"type": "http",
"url": "https://nylas.usefulapi.io/mcp"
}
}
} Run these commands. The second one opens the login page:
Windsurf, Cline, Zed and other MCP clients: add this URL as a remote MCP server (Streamable HTTP). The client then opens the login page in your browser.
Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Nylas API key and Region. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro | $9/mo · $90/yr | 10,000 tool calls / month |
| Pro+ | $39/mo · $390/yr | 100,000 tool calls / month |
Each paid plan covers this Nylas server only. Ask your AI to run nylas_upgrade and choose Pro or Pro+, billed monthly or yearly (it returns a Stripe Checkout link). If you already have Pro, ask to change it to Pro+. The change requires your confirmation, keeps your billing interval and charges the price difference for the rest of the period immediately. Cancel any time with nylas_cancel_subscription: your paid plan continues to the end of the paid period, with no refund for the current period, and asking to resume the same plan with nylas_upgrade before then undoes the cancel. Or write to [email protected].
nylas_list_grantsnylas_get_grantnylas_list_messagesnylas_get_messagenylas_list_foldersnylas_list_calendarsnylas_get_calendarnylas_list_eventsnylas_get_eventnylas_list_contactsnylas_get_contactnylas_list_draftsnylas_send_messagenylas_create_eventnylas_create_draftnylas_usage_statusnylas_request_featurenylas_upgradenylas_cancel_subscriptionRead and summarize recent emails from a sender. Check what is on your calendar this week. Find a contact by email or phone. Write a draft email and leave it unsent. Send an email or create a calendar event. See what you can do for the details.
No. usefulapi is an independent service. It is not affiliated with or endorsed by Nylas. The server calls the Nylas API with your own Nylas access, so it sees only the data that your account can see.
Yes. In Claude, add this server's URL as a custom connector. In ChatGPT, add it as a custom MCP server in Plugins. Then log in once. Cursor, VS Code, Claude Code and Codex work too. See the setup steps.
The login page asks for your Nylas API key and Region. See Before you connect for where to find them.
No. Add only the URL. Do not add an Authorization header or an API key to the client config. The server signs you in with OAuth: the login page asks for your Nylas API key and Region. If the config has such a header, remove it: some clients then send that header instead of the login token, and every call fails with 401.
The login stores them encrypted in the authorization grant of your connection. The server uses them to call the Nylas API for you and to derive a private account id for usage metering. usefulapi does not show them on any page or in any reply. To stop all access, remove the connector and change or delete these credentials in Nylas.
Yes, if you approve it. 3 of the 15 Nylas tools can create or change data. The other 12 are marked read-only. Most MCP clients ask you to approve a tool call before it runs.
The Free plan gives 50 tool calls / month. Pro costs $9/mo or $90/yr, with 10,000 tool calls / month. Pro+ costs $39/mo or $390/yr, with 100,000 tool calls / month. Each subscription covers this Nylas server only. Cancel any time: your paid plan then runs to the end of the paid period. Run nylas_usage_status to see how many calls you used.
Ask the AI to run nylas_upgrade and choose Pro or Pro+, billed monthly or yearly: it returns a Stripe Checkout link. If you already have Pro, ask to change it to Pro+. After you confirm, your existing subscription changes in place, keeps its billing interval and charges the price difference for the rest of the period immediately. To cancel, run nylas_cancel_subscription. Your paid plan continues to the end of the paid period.
Tell the AI what you wanted to do. It can send the request with nylas_request_feature. We store the text with the server name, the type of AI client and the tool you tried, not with your account, and read every request when we plan new tools. You can send up to 5 requests per day.
Any client that supports remote MCP servers (Streamable HTTP) with OAuth login: Claude (web and desktop), Claude Code, ChatGPT, Codex, Cursor, VS Code, Windsurf and others.
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.
Need a tool this server does not have, or a connection to another system? We build custom integrations and MCP servers.