Emailchaser

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "emailchaser": {
      "type": "http",
      "url": "https://app.emailchaser.com/api/mcp"
    }
  }
}

102 tools

• confirm_connection

  Confirms the API key works and tells Emailchaser which AI assistant connected. Call it as your first action after connecting, and whenever the user asks you to confirm or check the Emailchaser connection: it records the assistant and time on the key, which the app's API & MCP…

• list_campaigns

  Lists cold email campaigns in the workspace with their status and stats (sent, replies, bounces). Supports pagination and filtering by status or folder.

• create_campaign

  Creates a campaign in the workspace. The campaign starts as a DRAFT and sends nothing. A new campaign has no emails in it, so it cannot be launched until a sequence is written with replace_campaign_sequence and a sender email is attached. Sending limits and deliverability…

• get_campaign

  Retrieves a campaign by ID, including settings, sending schedule, stats and per-status email counts. minimumHealth lists each connected email account on the campaign with its healthScore and whether the campaign's minimum health score (settings.minimumHealthScore) holds it back…

• update_campaign

  Updates campaign properties such as name, emoji, timezone, sending limits, the minimum email account health score and deliverability settings. Only the provided fields are changed. A new minimum health score re-plans a running campaign at once.

• launch_campaign

  Launches a new campaign or resumes a paused one. The campaign configuration is validated before launching; emails start sending per the campaign schedule.

• pause_campaign

  Pauses a running campaign and cancels all currently scheduled emails.

• update_campaign_schedule

  Updates a campaign's sending schedule: timezone, sending days, daily time window and frequency. everySchedule can be left out: the campaign keeps its current frequency, or 5 minutes (the app's default) if it has none.

• get_campaign_sequence

  Returns the ordered emails that make up a campaign's sequence, including any A/B variants. delayDays on each step is counted from the previous step, and the first step is always 0.

• replace_campaign_sequence

  Replaces a campaign's WHOLE sequence with the steps provided. This is not a partial edit: steps you leave out are removed, so send the full sequence every time. Sending the same payload twice leaves the same result, so a retry cannot duplicate steps. Editing a running campaign…

• delete_campaign

  Permanently deletes a campaign and all associated data, including its emails, sequences and scheduled tasks. This cannot be undone.

• get_campaign_stats

  Returns a campaign's performance in one call: totals (sent, replied, positive, bounced, meetings), per-A/B-variant results, per-sequence-step results and a daily time series (UTC days). Use it to judge how a campaign is doing or to compare variants. There is no opens metric…

• attach_campaign_sender_emails

  Attaches connected sender email accounts to a campaign. A campaign only sends through the senders attached to it, so this call decides which mailboxes it uses. Idempotent: already-attached senders are left untouched and only missing ones are added. The call is refused whole when…

• detach_campaign_sender_email

  Detaches a sender email from a campaign so the campaign stops sending through that mailbox. Unsent follow-ups to emails this sender already sent are canceled and do not come back on re-attach; a running campaign is rescheduled onto its remaining senders; already-sent emails are…

• move_lead_to_campaign

  Moves a lead from one campaign to another: the lead's unsent emails in the source campaign are deleted, and if the target campaign is running, emails for the lead are enqueued there. Use it to re-route a lead into a better-fitting campaign.

• list_leads

  Lists the leads in the workspace, newest first, 20 per page. Filter by exact email to look up a single lead, or by campaign to list only that campaign's leads. This is how you find the ID of a lead you added earlier.

• add_leads

  Creates or updates up to 1,000 leads in one request, optionally adding them to a campaign via campaignId. Existing leads (matched by email) are updated instead of duplicated. Returns the id of every lead written, so they can be fetched or updated afterwards. Attributes outside…

• get_lead

  Retrieves a lead by ID, including contact details and company information.

• update_lead

  Updates a lead's contact details. Only the provided fields are changed.

• delete_lead

  Permanently deletes a lead by ID. This cannot be undone.

• get_lead_conversation

  Returns a lead's full email thread in chronological order: outbound emails (sent, scheduled and unsent drafts) plus inbound replies, each with direction and status. AI reply drafts awaiting review are marked isDraft; edit one with update_reply_draft and send it with…

• mark_lead_meeting

  Records that a meeting was actually booked with this lead: sets meetingBookedAt to now, sets the lead's category to meeting_booked and fires the LeadCategoryUpdate webhook. Emailchaser never infers meetings from reply text or calendars, so this explicit mark is the only way a…

• unmark_lead_meeting

  Removes the booked-meeting mark from a lead, e.g. when it was recorded by mistake or the meeting was canceled: clears meetingBookedAt and, when the category is still meeting_booked, reverts it to interested. The original booked time is lost. Idempotent: unmarking a lead with no…

• update_lead_category

  Sets or corrects a lead's category (tag), typically to fix an AI misclassification of a reply. Setting meeting_booked behaves exactly like mark_lead_meeting. Changing the category away from meeting_booked does NOT clear the booked-meeting mark; use unmark_lead_meeting for that…

• list_replies

  Lists inbound emails (replies received from prospects) in the workspace, newest first, 20 per page. Filter by AI response category, campaign, lead or a time floor. responseCategory is null while AI categorization is still pending. This tool only lists. To answer a reply, write…

• list_reply_drafts

  Lists AI-suggested reply drafts awaiting review, newest first, 20 per page. Each draft answers the inbound reply referenced by inReplyToEmailId. Nothing here has been sent: a draft stays a draft until a human sends it from the app or send_reply_draft is called. Edit one first…

• update_reply_draft

  Edits the subject and/or body of an AI reply draft before it goes out. Provide at least one field; provided fields must be non-empty. This never changes the draft's status or sends anything: the draft stays a draft until a human sends it from the app or send_reply_draft is…

• send_reply_draft

  Sends an AI reply draft to the prospect through the conversation's sender mailbox; it is scheduled for delivery right away and cannot be recalled. The draft's CURRENT subject and body are what goes out, so read it first (list_reply_drafts or get_lead_conversation) and fix it…

• send_reply

  Answers an inbound reply with your own message, in the same email thread and from the mailbox the conversation runs through (in a conversation the prospect started, your mailbox they wrote to). It works for every inbound reply, including the ones Emailchaser writes no AI draft…

• list_sender_emails

  Lists the sending email accounts in the workspace, 20 per page, with their connection status, daily limits and health score. Filter to one campaign's senders, to connected or disconnected mailboxes only, or to one workspace on the account. healthScore is the account's health…

• get_sender_email

  Retrieves a connected sending email account by ID, including its health score. healthScore is the account's health score: 0-100, higher is better, the share of its warm-up emails over the last 7 full days that landed in the inbox rather than spam. It moves daily as warm-up…

• connect_sender_email

  Connects an SMTP/IMAP mailbox to the workspace using an app password, with no browser step. Google and Microsoft mailboxes are NOT supported here because both require an interactive consent screen that cannot be automated; connect those in the app. The address must be on a…

• update_sender_email

  Updates a connected sending email account's display name, signature or daily sending limits. Only the provided fields are changed. Warm-up settings are separate: use update_sender_email_warmup. The returned account includes its healthScore (see get_sender_email).

• get_sender_email_dns

  Checks the sender domain's SPF, DKIM, DMARC and MX records and reports each as OK, WARNING, MISSING or ERROR with human-readable issues (the same checks behind the app's DNS vitals view), plus the mailbox's warm-up status: whether it is enrolled, today's ramp target, the daily…

• get_sender_email_warmup

  Reads a mailbox's warm-up settings: whether warm-up is on, the ramp (startLimit warm-up emails on the first day, increaseBy more each sending day, up to capLimit a day), weekdays-only, timezone, today's ramp target (currentPerDay) and the account's healthScore (0-100, higher is…

• update_sender_email_warmup

  Switches warm-up on or off and changes the warm-up ramp for up to 100 mailboxes in one call, applying the same settings to each. Only the settings provided change. Warm-up sends startLimit emails on the first day and adds increaseBy each sending day until it reaches capLimit a…

• list_inbox_placement_tests

  Lists every inbox placement test defined in the workspace, newest first. A test is the definition: the email content, which mailboxes send it and, for a recurring test, how often it runs. Each execution of a test is a run (list_inbox_placement_runs). Inbox placement is a paid…

• list_inbox_placement_runs

  Lists inbox placement runs, newest first, optionally only those of one test. Each run counts how many probe emails landed in the inbox, in spam, in a Gmail category tab (promotions) or nowhere (missing, which usually means a silent block). Counters are only final once status is…

• get_inbox_placement_run

  Returns one inbox placement run with its complete report: the headline inbox / spam / promotions / missing split, the breakdown per mailbox provider and per sending mailbox, and the content spam rules the copy triggered. 'Promotions' rolls up every Gmail category tab. 'Missing'…

• list_inbox_placement_run_results

  Returns one row per probe email of a run: which of your mailboxes sent it, which seed mailbox received it, where it landed and how many seconds it took to arrive. deliverySeconds is worth watching on its own: greylisting and throttling show up there before they show up in a…

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