Nylas MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.36.4Updated Nov 7, 2026

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

The publisher's own server: Ably MCP by usefulapi

VerifiedStreamable HTTPWeb executableProductivity & WorkflowCommunication & Collaboration

Overview

AI-generated overview

Hosted Nylas MCP server that lets an assistant read email, calendars, events and contacts, and send mail or create events for connected accounts.

What you can do
  • List and inspect connected accounts (grants) and mail folders
  • List and read email messages and drafts
  • List calendars and events, and read individual events
  • List and read contacts, with optional email or phone filters
  • Send a real email, create a draft, or create a calendar event
  • Check usage, request a feature, upgrade or cancel the subscription
When to use it
Useful when you want an assistant to triage an inbox, summarize messages from a specific sender, review the week's meetings, look up contacts, or draft and send mail and calendar invites through a Nylas-connected account.
Requirements
Remote streamable HTTP endpoint; no local install. Connect with the server URL only, then sign in through the server's OAuth login page with your Nylas credentials; on first connect you paste a Nylas API key, which is validated and stored per user. A free plan allows 50 tool calls per month.
Before you install
Sending email and creating events are real actions that reach recipients and may send invites; confirm before running them. The server asks for a Nylas API key, which grants access to your connected accounts. Paid plans are billed through a payment link, and cancellation runs to the end of the paid period with no refund for the current period. Usage is metered per month.

Installation

In SourceWeft

  1. Open Nylas MCP by usefulapi in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.usefulapi%2Fnylas/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "nylas-by-usefulapi": {
      "type": "http",
      "url": "https://nylas.usefulapi.io/mcp"
    }
  }
}

README

Nylas MCP by usefulapi

Read your email, calendars, events and contacts, and send email or create events, from Claude, Cursor, or any MCP client. Hosted, no local install — connect with your Nylas API key.

Live endpoint: https://nylas.usefulapi.io/mcp · Homepage: https://usefulapi.io/nylas

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://nylas.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http nylas https://nylas.usefulapi.io/mcp, then run /mcp to log in.
  • VS Code: Add to VS Code.
  • Cursor and other clients: add the URL as a remote MCP server:
json
{  "mcpServers": {    "nylas": {      "url": "https://nylas.usefulapi.io/mcp"    }  }}

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, and the login page asks for your Nylas credentials.

Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/nylas/

On first connect you'll paste your Nylas API key. It's validated, stored per-user, and scoped to you.

Tools

ToolTypeWhat it does
nylas_list_grantsreadList grants (connected accounts)
nylas_get_grantreadGet a grant
nylas_list_messagesreadList messages
nylas_get_messagereadGet a message
nylas_list_foldersreadList folders
nylas_list_calendarsreadList calendars
nylas_get_calendarreadGet a calendar
nylas_list_eventsreadList events
nylas_get_eventreadGet an event
nylas_list_contactsreadList contacts
nylas_get_contactreadGet a contact
nylas_list_draftsreadList drafts
nylas_send_messagewriteSend an email
nylas_create_eventwriteCreate a calendar event
nylas_create_draftwriteCreate a draft email
nylas_usage_statusmetaUsage status (free-tier meter)
nylas_request_featuremetaRequest a missing feature
nylas_upgrademetaUpgrade to Pro or Pro+
nylas_cancel_subscriptionmetaCancel the Pro subscription

read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.

Pricing

PlanPriceLimit
Free$050 tool calls / month
Pro$9/mo or $90/yr (2 months free)Unlimited*

*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].

Pro covers this server only. Subscribe with nylas_upgrade (it returns a Stripe Checkout link). Cancel any time with nylas_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running nylas_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT — see LICENSE. Documentation only; the server is hosted.

Source: servers/nylas/README.md at commit 4046075

Tools

15

nylas_list_grants

List grants (connected accounts)

List the connected accounts (grants) on this Nylas application, each with a grant_id used to scope other tools. Not grant-scoped. Nylas v3: GET /v3/grants.

Parameterslimitoffset

nylas_get_grant

Get a grant

Get details for a single connected account (grant). Nylas v3: GET /v3/grants/{grant_id}.

Parametersgrant_id

nylas_list_messages

List messages

List email messages for the connected account, with optional filters. Nylas v3: GET /v3/grants/{grant_id}/messages.

Parametersintofromlimitunreadstarredsubjectgrant_idpage_tokensearch_query_native

nylas_get_message

Get a message

Get a single email message by id. Nylas v3: GET /v3/grants/{grant_id}/messages/{message_id}.

Parametersgrant_idmessage_idrequired

nylas_list_folders

List folders

List mail folders/labels for the connected account. Nylas v3: GET /v3/grants/{grant_id}/folders.

Parameterslimitgrant_id

nylas_list_calendars

List calendars

List calendars for the connected account (each has a calendar_id used by the events tools). Nylas v3: GET /v3/grants/{grant_id}/calendars.

Parameterslimitgrant_idpage_token

nylas_get_calendar

Get a calendar

Get a single calendar by id. Nylas v3: GET /v3/grants/{grant_id}/calendars/{calendar_id}.

Parametersgrant_idcalendar_idrequired

nylas_list_events

List events

List calendar events. Requires calendar_id (sent as a query param). Nylas v3: GET /v3/grants/{grant_id}/events.

Parametersendlimitstartgrant_idpage_tokencalendar_idrequiredshow_cancelled

nylas_get_event

Get an event

Get a single calendar event by id. Requires calendar_id (sent as a query param). Nylas v3: GET /v3/grants/{grant_id}/events/{event_id}.

Parametersevent_idrequiredgrant_idcalendar_idrequired

nylas_list_contacts

List contacts

List contacts for the connected account, with optional email/phone filters. Nylas v3: GET /v3/grants/{grant_id}/contacts.

Parametersemaillimitgrant_idpage_tokenphone_number

nylas_get_contact

Get a contact

Get a single contact by id. Nylas v3: GET /v3/grants/{grant_id}/contacts/{contact_id}.

Parametersgrant_idcontact_idrequired

nylas_list_drafts

List drafts

List draft emails for the connected account. Nylas v3: GET /v3/grants/{grant_id}/drafts.

Parameterslimitgrant_idpage_token

nylas_send_message

Send an email

SENDS a real email via the connected account. This dispatches an actual message. Nylas v3: POST /v3/grants/{grant_id}/messages/send.

Parameterscctorequiredbccbodysubjectgrant_idreply_to_message_id

nylas_create_event

Create a calendar event

Creates a calendar event (may send invites to participants). Requires calendar_id (sent as a query param). Nylas v3: POST /v3/grants/{grant_id}/events.

Parameterstitlerequiredend_timerequiredgrant_idlocationstart_timerequiredcalendar_idrequireddescriptionparticipants

nylas_create_draft

Create a draft email

Creates a draft email (does NOT send — safe/additive). Nylas v3: POST /v3/grants/{grant_id}/drafts.

Parameterscctorequiredbccbodysubjectgrant_id

Version history

21
  1. v1.36.4LatestNov 7, 2026
  2. v1.35.3Nov 5, 2026
  3. v1.35.2Nov 5, 2026
  4. v1.35.1Nov 4, 2026
  5. v1.35.0Nov 3, 2026
  6. v1.34.1Nov 3, 2026
  7. v1.33.0Nov 1, 2026
  8. v1.31.0Oct 31, 2026
  9. v1.30.0Oct 31, 2026
  10. v1.29.2Oct 30, 2026
  11. v1.29.0Oct 30, 2026
  12. v1.24.0Oct 26, 2026
  13. v1.21.3Oct 25, 2026
  14. v1.21.0Oct 25, 2026
  15. v1.20.0Oct 24, 2026
  16. v1.17.0Oct 23, 2026
  17. v1.16.4Oct 22, 2026
  18. v1.16.3Oct 21, 2026
  19. v1.11.1Oct 9, 2026
  20. v1.10.0Oct 9, 2026
  21. v1.0.1Sep 16, 2026

Score

100% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts
  • License10 pts

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