io.usefulapi/mailblaze

up checked 2026-11-11T05:38:06.128Z

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Publisher-provided title

Mail Blaze MCP by usefulapi

Publisher-provided description

Manage Mail Blaze lists, subscribers, templates, campaigns and reports; send transactional email.

Summary by lookupd

Manages mailing lists, subscribers, templates and campaigns, reads send reports, and can send transactional email on the account.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http mailblaze https://mailblaze.usefulapi.io/mcp

Codex, remote (streamable-http)

codex mcp add mailblaze --url https://mailblaze.usefulapi.io/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

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

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (26 tools)

Publisher-provided text

• mailblaze_list_lists List the account's mailing lists (name, uid, subscriber counts, defaults). Use the list uid in the other tools. Paged: page + per_page.
• mailblaze_get_list Get one mailing list by its uid: general settings, default sender, company details and counts.
• mailblaze_list_list_fields List the fields of a mailing list (label, tag, type, required). The tags (EMAIL, FNAME, LNAME, custom ones) are the keys used when adding or updating subscriber
• mailblaze_list_segments List the segments defined on a mailing list (uid, name). A segment uid can be used when creating a campaign.
• mailblaze_list_subscribers List the subscribers of a mailing list (sets of 10 per page; use page to go on). Contains personal data (emails, names).
• mailblaze_get_subscriber Get one subscriber of a list by subscriber uid (status, fields, dates).
• mailblaze_find_subscriber_by_email Look up a subscriber in one list by email address. Returns the subscriber (with its uid) or a not-found error.
• mailblaze_add_subscriber WRITE, MAY SEND A CONFIRMATION EMAIL: add one subscriber to a mailing list. Depending on the list's settings Mail Blaze may send the person a confirmation (doub
• mailblaze_add_subscribers_bulk WRITE, MAY SEND CONFIRMATION EMAILS: add up to 100 subscribers to a mailing list in one request; an email already on the list is updated instead. Depending on t
• mailblaze_update_subscriber WRITE: update a subscriber's name or custom fields. Pass the subscriber's current email (Mail Blaze requires it) plus only the values to change. Does not change
• mailblaze_unsubscribe_subscriber WRITE: set a subscriber's status to unsubscribed so they receive no more campaigns from this list. By default Mail Blaze also adds the address to the account's
• mailblaze_resubscribe_subscriber WRITE: set a previously unsubscribed subscriber back to subscribed so campaigns reach them again. Only do this when the person asked to be re-added (consent).
• mailblaze_list_templates List the account's email templates (uid, name). A template uid is needed to create a campaign.
• mailblaze_get_template Get one email template by uid (name and content).
• mailblaze_create_template WRITE: create an email template from HTML (the tool base64-encodes it). Mail Blaze requires the HTML to contain an unsubscribe link. Sends nothing.
• mailblaze_list_campaigns List the account's email campaigns (uid, name, status, dates). Use the campaign uid for details and reports.
• mailblaze_get_campaign Get one campaign by uid: sender, subject, list, template, status and schedule.
• mailblaze_create_campaign WRITE, SENDS EMAIL TO PEOPLE: create a campaign for a mailing list (or one of its segments) from an existing template and schedule it for send_at. Once it goes
• mailblaze_get_campaign_summaries Bulk report summary (sent, opens, clicks, bounces, unsubscribes) for up to 50 campaigns in one call. Read-only (it is a POST in the API only because of the id l
• mailblaze_get_campaign_inbox_breakdown Inbox-provider breakdown (e.g. Gmail, Outlook, Yahoo) of a campaign's delivery.
• mailblaze_list_campaign_events List the individual events of a campaign by kind: opens, clicks, bounces or unsubscribes. Cursor-paged: pass the reply's next_cursor back until it is null. For
• mailblaze_get_subscriber_activity Email activity (sends, opens, clicks, bounces) of one subscriber by email address, optionally limited to one list. Cursor-paged.
• mailblaze_get_report_job Status (and result when finished) of an asynchronous report job, as returned in a 202 reply with a job_id.
• mailblaze_list_transactional_emails List the transactional emails sent through the account (uid, recipient, subject, status). Paged.
• mailblaze_get_transactional_email Get one transactional email by uid: recipient, subject, status and timestamps.
• mailblaze_send_transactional_email WRITE, SENDS ONE EMAIL NOW: send a single one-to-one email to one recipient through Mail Blaze. It leaves immediately, uses sending credit and cannot be recalle

Details

• Version: 1.16.3
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 421 ms
• First indexed: 2026-11-01T10:05:17.443Z
• Last seen in registry: 2026-11-11T00:17:29.407Z
• Repository: https://github.com/m190/usefulapi-mcp
• Website: https://usefulapi.io/mailblaze/

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