rapidmail MCP by usefulapi

io.usefulapiPublished by usefulapi.ioOfficial publisherv1.23.4Updated Nov 7, 2026

Read rapidmail lists, recipients, mailings and stats; add, update or unsubscribe one recipient.

The publisher's own server: Ably MCP by usefulapi

Overview

AI-generated overview

Hosted MCP server for a rapidmail newsletter account: browse lists, subscribers, mailings and stats, and add, update or unsubscribe one recipient.

What you can do
  • List and inspect recipient lists, including subscription activity stats over a date range
  • List, read, add, update and unsubscribe individual recipients in one list
  • List mailings and folders, and read a mailing's details and open/click/bounce statistics
  • Inspect per-recipient delivery and engagement activity for a mailing
  • Read the account blacklist and transactional e-mail logs (metadata only)
  • Check usage quota, request a feature, and upgrade or cancel the paid plan
When to use it
Useful when you want an assistant to answer questions about a rapidmail newsletter account — subscriber counts, list activity, campaign open and click rates, whether an address is subscribed — or to make occasional single-subscriber changes without opening the rapidmail dashboard.
Requirements
Remote endpoint only, no local install. Connect the server URL in an MCP client; the server signs in via OAuth and its login page asks for your rapidmail credentials. No API key or Authorization header is added to the client config. A rapidmail account is required, and the free tier allows 50 tool calls per month.
Before you install
Three tools write to the account: adding a recipient (by default triggers a double opt-in confirmation e-mail), updating a recipient, and unsubscribing one (a soft delete counted as an unsubscription). Confirm before running them. Usage is metered: the free plan is 50 calls a month, and paid plans (Pro, Pro+) are billed through a Stripe checkout link returned by the upgrade tool, with no refund for the current period on cancellation. Your rapidmail credentials are entered on the hosted…

Installation

In SourceWeft

  1. Open rapidmail 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%2Frapidmail/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": {
    "rapidmail-by-usefulapi": {
      "type": "http",
      "url": "https://rapidmail.usefulapi.io/mcp"
    }
  }
}

README

rapidmail MCP by usefulapi

Use rapidmail from Claude, Cursor, or any MCP client — recipient lists, recipients, mailings, statistics, the blacklist and transactional mail logs, plus single-recipient writes. Hosted, no local install: connect with your own rapidmail credentials.

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

Connect

  • Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste https://rapidmail.usefulapi.io/mcp.
  • Claude Code: claude mcp add --transport http rapidmail https://rapidmail.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": {    "rapidmail": {      "url": "https://rapidmail.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 rapidmail credentials.

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

Tools

ToolTypeWhat it does
rapidmail_list_recipientlistsreadList recipient lists
rapidmail_get_recipientlistreadGet recipient list
rapidmail_get_recipientlist_activity_statsreadGet recipient list activity stats
rapidmail_list_recipientsreadList recipients
rapidmail_get_recipientreadGet recipient
rapidmail_create_recipientwriteAdd recipient
rapidmail_update_recipientwriteUpdate recipient
rapidmail_unsubscribe_recipientwriteUnsubscribe recipient
rapidmail_list_mailingsreadList mailings
rapidmail_get_mailingreadGet mailing
rapidmail_get_mailing_statsreadGet mailing statistics
rapidmail_list_mailing_activityreadList mailing recipient activity
rapidmail_get_mailing_recipient_activityreadGet one recipient's activity in a mailing
rapidmail_list_mailing_foldersreadList mailing folders
rapidmail_list_blacklistreadList blacklist entries
rapidmail_list_transactional_emailsreadList transactional e-mails
rapidmail_usage_statusmetaUsage status (free-tier meter)
rapidmail_request_featuremetaRequest a missing feature
rapidmail_upgrademetaUpgrade to Pro or Pro+
rapidmail_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 (per user)$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 rapidmail_upgrade (it returns a Stripe Checkout link). Cancel any time with rapidmail_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running rapidmail_upgrade before then undoes the cancel. Or write to [email protected].

License

MIT © usefulapi. Not affiliated with or endorsed by rapidmail.

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

Tools

16

rapidmail_list_recipientlists

List recipient lists

List the recipient lists (newsletter audiences) of the rapidmail account with id, name, description, whether unsubscribed recipients are blacklisted, and which is the default. Use the ids for recipients and mailing filters. GET /recipientlists.

Parameterspage

rapidmail_get_recipientlist

Get recipient list

One recipient list by id. GET /recipientlists/{id}.

Parametersrecipientlist_idrequired

rapidmail_get_recipientlist_activity_stats

Get recipient list activity stats

Subscription activity of one recipient list between two dates (for example new subscriptions and unsubscriptions). The range may be at most one year, must not start before the list was created and must not lie in the future. GET /recipientlists/{id}/stats/activity.

Parameterstorequiredfromrequiredrecipientlist_idrequired

rapidmail_list_recipients

List recipients

List the recipients (subscribers) of ONE recipient list, optionally filtered by e-mail address, external id or status. recipientlist_id is required. The long text fields (extrabig1-10) are only returned with include_extrabig. GET /recipients.

Parameterspageemailstatussort_byforeign_idsort_orderinclude_extrabigrecipientlist_idrequired

rapidmail_get_recipient

Get recipient

One recipient by id: e-mail, name, status, custom fields and timestamps. GET /recipients/{id}.

Parametersrecipient_idrequired

rapidmail_create_recipient

Add recipient

WRITE: add ONE recipient (subscriber) to a recipient list. By default double opt-in is used: the recipient is created with status 'new' and rapidmail sends ONE confirmation e-mail to that address; they only receive newsletters after confirming. Set double_opt_in=false only if you hold the person's documented consent: the recipient is then stored as 'active' and no e-mail is sent (refused if the address was unsubscribed before). If a deleted recipient with the same address exists it is re-activated; an existing address returns a conflict error. Never use for bulk imports. POST /recipients.

Parameterszipemailrequiredtitleextra1extra2extra3extra4extra5extra6extra7extra8extra9+10 more

rapidmail_update_recipient

Update recipient

WRITE: partially update ONE recipient (only the fields you pass change): e-mail, name, custom fields. The status and the recipient list cannot be changed here, and no e-mail is sent. An e-mail address that already exists in the list returns a conflict error. PATCH /recipients/{id}.

Parameterszipemailtitleextra1extra2extra3extra4extra5extra6extra7extra8extra9+8 more

rapidmail_unsubscribe_recipient

Unsubscribe recipient

WRITE: remove ONE recipient from their list. rapidmail only soft-deletes the record (status 'deleted', as if the person had unsubscribed) and the statistics count it as an unsubscription. No goodbye e-mail is sent. Single recipient only. DELETE /recipients/{id}.

Parametersrecipient_idrequired

rapidmail_list_mailings

List mailings

List newsletters (mailings) with status, subject, sender, send time, recipient count and recipient lists. Filter by status, recipient list, created / updated / sent date. Read only: mailings are never created, sent or scheduled by this server. GET /mailings.

Parameterspagestatussent_tosort_bysent_fromsort_ordercreated_sinceupdated_sincerecipientlist_id

rapidmail_get_mailing

Get mailing

One mailing by id: status, subject, sender, destinations (recipient lists), send time, size and attachments. GET /mailings/{id}.

Parametersmailing_idrequired

rapidmail_get_mailing_stats

Get mailing statistics

Statistics of one sent mailing (opens, clicks, bounces, unsubscriptions and similar totals). GET /mailings/{id}/stats.

Parametersmailing_idrequired

rapidmail_list_mailing_activity

List mailing recipient activity

The recipients a mailing went to and what each did (delivered, opened, clicked, bounced). Detailed event information is only available if the respective plugin is enabled in the rapidmail account. GET /mailings/{id}/stats/activity.

Parameterspagemailing_idrequired

rapidmail_get_mailing_recipient_activity

Get one recipient's activity in a mailing

Delivery and engagement details of one recipient of one mailing. GET /mailings/{id}/stats/activity/{mailingrecipient_id}.

Parametersmailing_idrequiredmailingrecipient_idrequired

rapidmail_list_mailing_folders

List mailing folders

The folders used to organise mailings, with id and name. GET /mailings/folders.

Takes no parameters.

rapidmail_list_blacklist

List blacklist entries

The account's blacklist: e-mail addresses, domains and patterns that never receive mailings, with their type, source and dates. GET /blacklist.

Parameterspagepatternpage_sizecreated_sinceupdated_since

rapidmail_list_transactional_emails

List transactional e-mails

Transactional (SMTP) e-mails sent through the rapidmail account: sender, recipient, subject, status (queued, delivered, bounced...), delivery diagnostics and open/click counts. Metadata only, no message bodies. Filter by date, status, project or address. GET /trx/emails.

Parameterstofrompagestatusdate_tosubjectdate_fromproject_idhas_attachments

Version history

19
  1. v1.23.4LatestNov 7, 2026
  2. v1.22.3Nov 5, 2026
  3. v1.22.2Nov 5, 2026
  4. v1.22.1Nov 4, 2026
  5. v1.22.0Nov 3, 2026
  6. v1.21.1Nov 3, 2026
  7. v1.20.0Nov 1, 2026
  8. v1.18.0Oct 31, 2026
  9. v1.17.0Oct 31, 2026
  10. v1.16.2Oct 30, 2026
  11. v1.16.0Oct 30, 2026
  12. v1.11.0Oct 26, 2026
  13. v1.8.3Oct 25, 2026
  14. v1.8.0Oct 25, 2026
  15. v1.7.0Oct 24, 2026
  16. v1.4.0Oct 23, 2026
  17. v1.3.4Oct 22, 2026
  18. v1.3.3Oct 21, 2026
  19. v1.0.0Oct 12, 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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