Get started

EmailOctopus for AI agents

EmailOctopus is an affordable email marketing platform for building subscriber lists and sending campaigns, used by small businesses and creators who want simple tools without a big price tag. 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 EmailOctopusSee the 20 actions ↓
MarketingAPI keyMCP + RESTemailoctopus.com
AUDIT LOG · EMAILOCTOPUSPOLICY: acme-support
09:41:07 · claude · u_8f2read
emailoctopus.list_tags
List Tags✓ allowed · 212ms
09:41:08 · claude · u_8f2read
emailoctopus.get_list
Get List✓ allowed · 164ms
09:41:09 · claude · u_8f2write
emailoctopus.create_tag
Create Tag✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
emailoctopus.delete_tag
Delete Tag✕ blocked · policy: deny
EVERY EMAILOCTOPUS CALL, ON THE RECORD
01 · USE CASES

What agents do in EmailOctopus.

01

Add a contact to a list

Add a new contact to a list once they sign up through a form.

02

Check recent campaign results

Get recent campaigns to report on open and click performance.

03

Confirm before deleting a list

Require approval before deleting a list, since it removes every contact and tag tied to it.

02 · ACTIONS

20 EmailOctopus actions, graded by risk.

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

read

6

Look things up. Allowed by default.

  • emailoctopus.get_list
    Get List
  • emailoctopus.list_tags
    List Tags
  • emailoctopus.get_contact
    Get Contact
  • emailoctopus.get_all_lists
    Get All Lists
  • emailoctopus.list_contacts
    List Contacts
  • emailoctopus.get_recent_campaigns
    Get Recent Campaigns

write

9

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

  • emailoctopus.create_tag
    Create Tag
  • emailoctopus.update_tag
    Update Tag
  • emailoctopus.create_list
    Create List
  • emailoctopus.update_list
    Update List
  • emailoctopus.create_field
    Create Field
  • emailoctopus.update_field
    Update Field
  • emailoctopus.create_contact
    Create Contact
  • emailoctopus.update_contacts_batch
    Batch Update Contacts
  • emailoctopus.upsert_contact
    Create or Update Contact

destructive

5

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

  • emailoctopus.delete_tag
    Delete Tag
  • emailoctopus.delete_list
    Delete List
  • emailoctopus.delete_field
    Delete Field
  • emailoctopus.delete_contact
    Delete Contact
  • emailoctopus.unsubscribe_contact
    Unsubscribe Contact
03 · HOW IT WORKS

EmailOctopus in three steps.

  1. 01Your users connect EmailOctopusThey add their EmailOctopus 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 Tag” can be denied outright.
  3. 03Any agent can actYour agent calls EmailOctopus 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('emailoctopus', {
  read: 'allow',
  write: 'ask',        // create_tag
  destructive: 'deny',  // delete_tag
})

# 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 EmailOctopus connects.

Users add their EmailOctopus 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 EmailOctopus 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 EmailOctopus 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

EmailOctopus and Arc0, answered.

Q01

Can I use EmailOctopus with Claude, ChatGPT or Cursor?

Yes. Connect EmailOctopus 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 EmailOctopus actions you allow.

Q02

How do users connect EmailOctopus?

Users add their EmailOctopus 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 EmailOctopus actions can my agent take?

20 in total: 6 read, 9 write and 5 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 EmailOctopus?

Yes. Actions like “delete Tag” 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 EmailOctopus too?

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

Get started

Plug EmailOctopus into your agent.

Your users connect EmailOctopus once, under your brand. Your agent gets 20 actions behind your policies, with every call on the record.

Connect EmailOctopusBrowse all apps →

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