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Campayn for AI agents

Campayn is an email marketing platform for creating, sending, and reporting on campaigns, keeping contact lists and webforms in one connected place. 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 CampaynSee the 14 actions ↓
MarketingAPI keyMCP + RESTcampayn.com
AUDIT LOG · CAMPAYNPOLICY: acme-support
09:41:07 · claude · u_8f2read
campayn.get_lists
Get Lists✓ allowed · 212ms
09:41:08 · claude · u_8f2read
campayn.get_contact
Get Contact✓ allowed · 164ms
09:41:09 · claude · u_8f2write
campayn.create_contact
Create Contact✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
campayn.delete_list
Delete List✕ blocked · policy: deny
EVERY CAMPAYN CALL, ON THE RECORD
01 · USE CASES

What agents do in Campayn.

01

Check a campaign's message stats

Pull open and click statistics for a sent message before deciding on the next send.

02

Add a new contact to a list

Add a new contact to a mailing list, ready to receive the next campaign.

03

Confirm before deleting a list

Confirm before deleting a contact list, since every subscriber on it is removed as well.

02 · ACTIONS

14 Campayn actions, graded by risk.

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

read

8

Look things up. Allowed by default.

  • campayn.get_lists
    Get Lists
  • campayn.get_contact
    Get Contact
  • campayn.get_message
    Get Message Statistics
  • campayn.get_reports
    Get Reports
  • campayn.get_webform
    Get Webform
  • campayn.get_contacts
    Get Contacts
  • campayn.get_messages
    Get Messages
  • campayn.get_webforms
    Get Webforms

write

2

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

  • campayn.update_list
    Update List
  • campayn.create_contact
    Create Contact

destructive

4

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

  • campayn.delete_list
    Delete List
  • campayn.delete_contact
    Delete Contact
  • campayn.delete_webform
    Delete webform
  • campayn.unsubscribe_contact
    Unsubscribe Contact
03 · HOW IT WORKS

Campayn in three steps.

  1. 01Your users connect CampaynThey add their Campayn api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Contact” can wait for the user, and “delete List” can be denied outright.
  3. 03Any agent can actYour agent calls Campayn 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('campayn', {
  read: 'allow',
  write: 'ask',        // create_contact
  destructive: 'deny',  // delete_list
})

# 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 Campayn connects.

Users add their Campayn 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 Campayn 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 Campayn 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

Campayn and Arc0, answered.

Q01

Can I use Campayn with Claude, ChatGPT or Cursor?

Yes. Connect Campayn 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 Campayn actions you allow.

Q02

How do users connect Campayn?

Users add their Campayn 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 Campayn actions can my agent take?

14 in total: 8 read, 2 write and 4 destructive, such as “create Contact”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Campayn?

Yes. Actions like “delete List” 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 Campayn too?

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

Get started

Plug Campayn into your agent.

Your users connect Campayn once, under your brand. Your agent gets 14 actions behind your policies, with every call on the record.

Connect CampaynBrowse all apps →

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