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Maildroppa for AI agents

Maildroppa is an email marketing platform for managing subscriber segmentation, newsletters, transactional email, and automated events for small businesses and creators. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

Connect MaildroppaSee the 23 actions ↓
MarketingAPI keyMCP + RESTmaildroppa.com
AUDIT LOG · MAILDROPPAPOLICY: acme-support
09:41:07 · claude · u_8f2read
maildroppa.list_tags
List Tags✓ allowed · 212ms
09:41:08 · claude · u_8f2read
maildroppa.list_forms
List Forms✓ allowed · 164ms
09:41:09 · claude · u_8f2write
maildroppa.create_tag
Create Tag✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
maildroppa.delete_segment
Delete Segment✕ blocked · policy: deny
EVERY MAILDROPPA CALL, ON THE RECORD
01 · USE CASES

What agents do in Maildroppa.

01

Add a subscriber to a segment

Create a subscriber and place them into the right segment based on signup details.

02

Check a segment's subscriber count

Count subscribers currently in a segment to size an upcoming send before scheduling the campaign.

03

Approve before deleting a segment

Require approval before deleting a segment, since campaigns targeting it would lose their audience.

02 · ACTIONS

23 Maildroppa actions, graded by risk.

Every Maildroppa action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

13

Look things up. Allowed by default.

  • maildroppa.list_tags
    List Tags
  • maildroppa.list_forms
    List Forms
  • maildroppa.get_segment
    Get Segment
  • maildroppa.get_tag_usage
    Get Tag Usage
  • maildroppa.list_segments
    List Segments
  • maildroppa.get_subscriber
    Get Subscriber
  • maildroppa.list_subscribers
    List Subscribers
  • maildroppa.get_form_embedding
    Get Form Embedding
  • maildroppa.list_rss_newsletters
    List RSS Newsletters
  • maildroppa.list_subscriber_fields
    List Subscriber Fields
  • maildroppa.list_rss_sender_profiles
    List RSS Sender Profiles
  • maildroppa.list_subscriber_activity
    List Subscriber Activity
  • maildroppa.count_segment_subscribers
    Count Segment Subscribers

write

7

Create and change things. Allow, or ask the user first.

  • maildroppa.create_tag
    Create Tag
  • maildroppa.update_tag
    Update Tag
  • maildroppa.create_segment
    Create Segment
  • maildroppa.update_segment
    Update Segment
  • maildroppa.create_subscriber
    Create Subscriber
  • maildroppa.create_subscribers
    Create Subscribers
  • maildroppa.restore_tag
    Restore Tag

destructive

3

Delete, cancel or archive. Ask first, or deny outright.

  • maildroppa.archive_tag
    Archive Tag
  • maildroppa.delete_segment
    Delete Segment
  • maildroppa.delete_subscriber
    Delete Subscriber
03 · HOW IT WORKS

Maildroppa in three steps.

  1. 01Your users connect MaildroppaThey add their Maildroppa api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Tag” can wait for the user, and “delete Segment” can be denied outright.
  3. 03Any agent can actYour agent calls Maildroppa through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('maildroppa', {
  read: 'allow',
  write: 'ask',        // create_tag
  destructive: 'deny',  // delete_segment
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Maildroppa connects.

Users add their Maildroppa api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Maildroppa connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH
API key
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use Maildroppa from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More marketing apps.

Meta Ads67 actionsActiveCampaign298 actionsActiveTrail159 actionsAdobe Marketing Agent12 actionsAdtraction22 actionsAdyntel8 actionsAhrefs40 actionsAirOps96 actions
ALL MARKETING APPS →
07 · FAQ

Maildroppa and Arc0, answered.

Q01

Can I use Maildroppa with Claude, ChatGPT or Cursor?

Yes. Connect Maildroppa to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Maildroppa actions you allow.

Q02

How do users connect Maildroppa?

Users add their Maildroppa api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Maildroppa actions can my agent take?

23 in total: 13 read, 7 write and 3 destructive, such as “create Tag”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Maildroppa?

Yes. Actions like “delete Segment” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Maildroppa too?

Yes. The same Maildroppa connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Maildroppa into your agent.

Your users connect Maildroppa once, under your brand. Your agent gets 23 actions behind your policies, with every call on the record.

Connect MaildroppaBrowse all apps →

Free to build · MCP + REST · Audit log on every plan