Claude Superhuman Mail connectorWhat Claude can do in your inbox and calendar.
The Claude Superhuman Mail connector exposes 19 tools: 8 in read, 9 in write, 2 undocumented. Claude searches your threads, checks who opened your emails, drafts replies in your voice, sends, trashes or unsubscribes, and books calendar events.
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What changes when Claude works in Superhuman Mail
Copying an email into a chat window, asking for a reply and pasting it back is over. With the connector, Claude reads your Superhuman Mail inbox and calendar directly, drafts in your own tone, files threads, and can send. Superhuman's own advice is the key to using it well: keep the send step on approval so nothing leaves without your sign-off.
Catching up on a thread. Claude finds it with list_threads using sender, subject or date filters, opens it with get_thread, and can check who opened your last message through get_read_statuses.
Replying without copy and paste. create_or_update_draft writes a reply in your voice that shows up in your Mail drafts, and send_draft sends it, optionally scheduled or with Smart Send, once you approve.
Booking the follow-up. get_availability looks for a slot that suits a group, and create_or_update_event puts it in the calendar.
What it will not do: no tool sends attachments yet, according to Superhuman, and two tools on the directory sheet are described nowhere. Nothing runs on its own either: Superhuman states its server does no scheduling, and Claude acts only while it answers you. The Claude connectors hub lists the other email connectors, and the Integrations page covers rule-based automation platforms.
Five words before you connect
The Claude vocabulary behind this connector, in one minute.
- Connector
- Set up once, it links Claude to the mailbox and calendar you already use in Superhuman Mail, so Claude can act there while it answers you.
- Tool
- One named thing the connector lets Claude do on that account. Claude chooses the tools it needs, and the directory sheet lists them by name.
- Authorization
- Superhuman's own sign-in screen, where you give Claude the access it will use from then on. Granted once per person, and revocable.
- Approval
- The confirmation Claude waits for before it goes ahead with something that changes the account, such as sending an email.
- MCP
- The open protocol connectors rely on: through it, Claude exchanges with a service outside itself, here Superhuman Mail.
Connecting Superhuman Mail to Claude in three steps
- 01
Find Superhuman Mail in Claude
Open Claude's settings, go to Customize then Connectors, and search for Superhuman Mail. On a Team or Enterprise workspace, an Owner or Primary Owner first enables it so each member can then sign in with their own inbox.
- 02
Start the connection
Click Connect on its row and complete the Superhuman sign-in in your browser. Superhuman notes the screen may look familiar even when you are logged in: it is the step that grants Claude access. If the link breaks, use Disconnect and reconnect.
- 03
Read the authorization screen
Check the authorization screen before you accept. It belongs to Superhuman, not to Claude, and it decides what the access covers. You can also take that access back later from the Superhuman side.
The 19 Superhuman Mail tools, sorted by what they do
Superhuman Mail gives Claude 19 tools: 8 that read your account, 9 that change something in it, and 2 no official source describes.
Superhuman's help centre describes seventeen of them; two appear on the directory sheet with only a name. Names stay exactly as Claude shows them.
- 8 read
- 9 write
- 2 not documented
What Claude reads (8)
8 toolsEight tools that search, open and summarise email and calendar data without altering it.
get_attachment
Fetches a file attached to an email you received, so that its content is brought into the conversation instead of staying in your inbox.
list_splits
Returns your Split Inboxes from Superhuman Mail, such as Important or Other, so Claude knows how your inbox is divided before searching inside one split.
get_availability
Looks across calendars for meeting times that work for a group of participants and returns the open slots Claude can propose.
get_message
Fetches a single email by its identifier, which Claude uses when it needs one precise message rather than the whole conversation around it.
get_read_statuses
Tells you who opened the emails you sent, when they did, and on what device, using Superhuman's read tracking.
get_thread
Opens a complete email thread with its messages, any drafts attached to it and the comments left on it, so Claude reads the whole exchange in order.
list_threads
Searches your threads with structured filters such as sender, recipient, subject, label, split and date range, and returns the matches.
query_email_and_calendar
Answers a question about your email and calendar through semantic search, so you can ask in plain words instead of building filters.
What Claude can change or send (9)
9 toolsNine tools that draft, send, file, trash, unsubscribe or schedule. Superhuman describes approval for sending; for the rest, the general rule below applies.
create_or_update_draft
Approval: see the ruleWrites a new email draft or edits an existing one in your voice and tone. Drafts made this way appear in your Superhuman Mail drafts folder.
create_or_update_event
Approval: see the ruleCreates a calendar event or modifies one already in your calendar, using the event preferences stored in your Superhuman personalization.
discard_draft
Approval: see the ruleDeletes a draft from your drafts, for instance one of several versions Claude prepared that you no longer need.
send_draft
Asks you firstSends an email with recipients, copies, subject and body, and supports Smart Send, scheduled sending and Undo Send.
trash_thread
Approval: see the ruleMoves a whole thread to the Trash.
undo_send
Approval: see the ruleCancels an email you sent a moment ago, as long as it is still within the Undo window.
unsubscribe
Approval: see the ruleUnsubscribes you from a mailing list and can also trash its messages and block the sender.
update_personalization
Approval: see the ruleUpdates the writing style, event preferences and personal facts Superhuman Mail uses when it drafts emails and events. The change is saved in your Personalization settings.
update_thread
Approval: see the ruleAdds or removes a label, stars or unstars, marks Done or not Done, marks read or unread, and moves threads in or out of Trash, on one or several threads at once.
Not documented (2)
2 toolsListed by name on the directory sheet, described by no official source. Nothing more is said about them here.
mark_spam
The directory sheet names this tool, yet Superhuman's help article on its server never mentions it and no other official text describes it. Nothing is stated here about its effect. If Claude calls it, Superhuman's default of confirming every action and Claude's general approval rule both apply.
get_labels
Only its name appears on the directory sheet. Superhuman's help article on its server never mentions this name, and no other official source documents it. Its behaviour is therefore not described on this page. Any call falls under Superhuman's default of confirming every action and Claude's general approval rule.
What Claude asks before acting
By default, Claude stops and asks for your go-ahead before any action it takes on an account in your place. Superhuman goes further: by default the assistant asks you to confirm every action, reading included.
That safety net can be loosened. In Claude, admins set each Superhuman Mail tool to Always Allow or Needs approval from the organisation's connector settings, and users with the right permissions adjust it from their own connector settings. Superhuman also says the server can run in read-only mode. Owners of a Team or Enterprise workspace can bound what the connector may do for everyone. Claude works with your mailbox rights and nothing beyond them.
Which plans include it
None of the 819 sheets in the official directory displays availability by Claude plan. Connector by connector, the answer is published nowhere: it is a real gap in the catalogue.
What is published is the general rule: remote connectors are open to all users on Claude, Cowork, Claude Desktop and mobile. On Team and Enterprise, an Owner or Primary Owner enables the connector for the organisation before each member signs in. For the current state of this one, check its sheet in the official directory. Note that only Superhuman documents it; no Claude help article covers it.
Where the Claude Superhuman Mail connector stops
A connector is not an automation. Claude calls these tools while it answers you: nothing fires when a new email arrives, and Superhuman says its server does no scheduling.
The tool list is an observed floor, not a promise: an administrator can open actions that no public sheet shows. The partner badge in the directory is not a security audit, and Anthropic says on every sheet that it does not choose the tools a publisher exposes and cannot guarantee they behave as announced. Superhuman adds a data point worth knowing: what the server returns, email content included, is sent to the AI provider, and its own retention commitments cover only its built-in AI.
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