Moosend for AI agents

Moosend is an AI-assisted email marketing platform for building and sending campaigns to segmented mailing lists at scale for growing businesses. 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 Moosend See the 31 actions ↓

MarketingAPI keyMCP + RESTmoosend.com

AUDIT LOG · MOOSENDPOLICY: acme-support

09:41:07 · claude · u_8f2read

moosend.list_segments

List Segments✓ allowed · 212ms

09:41:08 · claude · u_8f2read

moosend.list_all_senders

List all senders✓ allowed · 164ms

09:41:09 · claude · u_8f2write

moosend.create_segment

Create Segment✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

moosend.delete_campaign

Delete Campaign✕ blocked · policy: deny

EVERY MOOSEND CALL, ON THE RECORD

01 · USE CASES

What agents do in Moosend.

Add a subscriber to a list

Add a new subscriber to a mailing list after they sign up on another channel.

Check a campaign's stats

Pull open and click stats by location for a sent campaign, read-only.

Approve before sending a campaign

Require sign-off before sending a campaign, since it reaches the entire mailing list at once.

02 · ACTIONS

31 Moosend actions, graded by risk.

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

read

Look things up. Allowed by default.

moosend.list_segments
List Segments
moosend.list_all_senders
List all senders
moosend.get_all_campaigns
Get all campaigns
moosend.get_all_subscribers
Get All Subscribers
moosend.get_campaign_details
Get Campaign Details
moosend.list_all_mailing_lists
List all mailing lists
moosend.get_subscriber_by_email
Get Subscriber By Email
moosend.get_mailing_list_details
Get Mailing List Details
moosend.list_campaigns_with_paging
List campaigns with paging
moosend.get_campaign_stats_by_location
Get Campaign Stats by Location

write

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

moosend.send_campaign
Send Campaign
moosend.add_subscriber
Add or Update Subscriber
moosend.create_segment
Create Segment
moosend.update_segment
Update Segment
moosend.update_campaign
Update Campaign
moosend.update_subscriber
Update Subscriber
moosend.create_custom_field
Create custom field
moosend.create_mailing_list
Create Mailing List
moosend.update_custom_field
Update custom field
moosend.update_mailing_list
Update Mailing List
moosend.add_segment_criteria
Add Segment Criteria
moosend.update_segment_criteria
Update Segment Criteria
moosend.clone_campaign
Clone Campaign
moosend.schedule_campaign
Schedule Campaign
moosend.unschedule_campaign
Unschedule Campaign

destructive

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

moosend.delete_campaign
Delete Campaign
moosend.delete_custom_field
Delete custom field
moosend.delete_mailing_list
Delete Mailing List
moosend.remove_multiple_subscribers
Remove Multiple Subscribers
moosend.unsubscribe_from_account
Unsubscribe From Account
moosend.unsubscribe_from_mailing_list
Unsubscribe from Mailing List

03 · HOW IT WORKS

Moosend in three steps.

01Your users connect MoosendThey add their Moosend api key on Arc0 Connect, under your brand. It goes straight into the vault.
02You set the rulesReads run, writes like “create Segment” can wait for the user, and “delete Campaign” can be denied outright.
03Any agent can actYour agent calls Moosend 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('moosend', {
  read: 'allow',
  write: 'ask',        // create_segment
  destructive: 'deny',  // delete_campaign
})

# 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 Moosend connects.

Users add their Moosend 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 Moosend 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 Moosend 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 actions

ActiveCampaign298 actions ActiveTrail159 actions

Adobe Marketing Agent12 actions

07 · FAQ

Moosend and Arc0, answered.

Q01

Can I use Moosend with Claude, ChatGPT or Cursor?

Yes. Connect Moosend 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 Moosend actions you allow.

Q02

How do users connect Moosend?

Users add their Moosend 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 Moosend actions can my agent take?

31 in total: 10 read, 15 write and 6 destructive, such as “create Segment”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Moosend?

Yes. Actions like “delete Campaign” 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 Moosend too?

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

Get started

Plug Moosend into your agent.

Your users connect Moosend once, under your brand. Your agent gets 31 actions behind your policies, with every call on the record.

Connect Moosend Browse all apps →

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