ENFRESDE
List your agent

Mail Blaze MCP by usefulapi

MCP server · hosted · v1.0.0 · io.usefulapi/mailblaze
Online · tested 1h agoNEW · 2h agoSeen in the registry 1h ago

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

Website ↗Source code ↗How to connect ↓

What it does

Mail Blaze MCP by usefulapi is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence). None of this is a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.0.0
PriceNot in the registry
First seen25 Oct 2026
Last checked1h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)

Hosted endpoint

  • https://mailblaze.usefulapi.io/mcp streamable-http

In Claude Code: claude mcp add --transport http mail-blaze-mcp-by-usefulapi https://mailblaze.usefulapi.io/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "mail-blaze-mcp-by-usefulapi": {
      "url": "https://mailblaze.usefulapi.io/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 1h ago

ONLINE Mail Blaze MCP by usefulapi answered an MCP connection on 25 Oct 2026 and introduced itself as mailblaze-mcp 1.0.0 (MCP protocol 2025-06-18).

26 tools offered to AI assistants

  • 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 subscribers.
  • 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 (double opt-in) email. Only add people who agreed to receive your email. An email tha
  • 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 the list's settings Mail Blaze may send confirmation emails. Only add people who
  • 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 subscription status.
  • 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 local blacklist. Do this only when the person asked to stop (or a data-protectio
  • 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).
Show 14 more
  • 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 out it reaches every subscriber of the list or segment, may use sending credit a
  • 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 list).
  • 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 very large campaigns Mail Blaze answers 202 with a job_id; check it with mailbla
  • 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 recalled. Give either html (the body) or template_id (a transactional template, with me

What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. Launch offer: $39.99 once, for life.

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://mailblaze.usefulapi.io/mcpDECLAREDSRC-001 Official MCP Registry1h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry1h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry1h ago
Websitehttps://usefulapi.io/mailblaze/DECLAREDSRC-001 Official MCP Registry1h ago
Repositoryhttps://github.com/m190/usefulapi-mcpDECLAREDSRC-001 Official MCP Registry1h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry1h ago
Version1.0.0DECLAREDSRC-001 Official MCP Registry1h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry1h ago

Change history

  • NEW25 Oct 2026
    first seen in the index

Is this page accurate?

Flag it and our robot re-checks the official source. Reports never change a score.

Are you the publisher of Mail Blaze MCP by usefulapi?

Free · show your listing

An independent listing builds trust with your buyers. Announce it, and add the badge to your website or README.

Announce it on LinkedInListed on Electra Index
<a href="https://electraindex.com/mcp/mail-blaze-mcp-by-usefulapi?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/mail-blaze-mcp-by-usefulapi" alt="Listed on Electra Index"></a>

Questions about Mail Blaze MCP by usefulapi

How do I connect Mail Blaze MCP by usefulapi?

Use the hosted endpoint https://mailblaze.usefulapi.io/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Mail Blaze MCP by usefulapi offer?

When Electra Index connected on 25 Oct 2026, it listed 26 tools: mailblaze_list_lists, mailblaze_get_list, mailblaze_list_list_fields, mailblaze_list_segments, mailblaze_list_subscribers, mailblaze_get_subscriber, mailblaze_find_subscriber_by_email, mailblaze_add_subscriber and more. The full list is in "Live check" above.

Is Mail Blaze MCP by usefulapi online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.