Omnisend for AI agents

Omnisend is a marketing automation platform built for ecommerce brands to run email and SMS campaigns tied to orders and customer behavior. Marketing teams use it to drive repeat purchases. 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 Omnisend See the 43 actions ↓

MarketingOAuth 2.0MCP + RESTomnisend.com

AUDIT LOG · OMNISENDPOLICY: acme-support

09:41:07 · claude · u_8f2read

omnisend.list_carts

List Carts✓ allowed · 212ms

09:41:08 · claude · u_8f2read

omnisend.get_cart

Get Cart✓ allowed · 164ms

09:41:09 · claude · u_8f2write

omnisend.create_cart

Create Cart✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

omnisend.delete_cart

Delete Cart✕ blocked · policy: deny

EVERY OMNISEND CALL, ON THE RECORD

01 · USE CASES

What agents do in Omnisend.

Create or update a contact

Sync a customer's profile and marketing preferences into Omnisend after a purchase or signup.

Look up campaign performance

List recent campaigns read-only to check open and click activity before planning the next one.

Delete a product with approval

Remove a discontinued product from the catalog only after a marketing lead confirms.

02 · ACTIONS

43 Omnisend actions, graded by risk.

Every Omnisend 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.

omnisend.get_cart
Get Cart
omnisend.get_brand
Get Brand
omnisend.get_order
Get Order
omnisend.list_carts
List Carts
omnisend.get_batches
Get Batches
omnisend.get_contact
Get Contact
omnisend.get_product
Get Product
omnisend.list_events
List Events
omnisend.get_category
Get Category
omnisend.list_contacts
List Contacts
omnisend.list_products
List Products
omnisend.get_batch_item
Get Batch Item
omnisend.list_campaigns
List Campaigns
omnisend.get_batch_items
Get Batch Items
omnisend.list_categories
List Categories
omnisend.get_product_category
Get Product Category

+ 2 MORE

write

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

omnisend.send_event
Send Event
omnisend.create_cart
Create Cart
omnisend.update_cart
Update Cart
omnisend.create_batch
Create Batch
omnisend.create_order
Create Order
omnisend.create_product
Create Product
omnisend.update_contact
Update Contact
omnisend.create_category
Create Category
omnisend.add_cart_product
Add Cart Product
omnisend.update_cart_product
Update Cart Product
omnisend.update_order_status
Update Order Status
omnisend.create_product_category
Create Product Category
omnisend.update_product_category
Update Product Category
omnisend.create_or_update_contact
Create or Update Contact
omnisend.replace_cart
Replace Cart
omnisend.replace_order
Replace Order

+ 3 MORE

destructive

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

omnisend.delete_cart
Delete Cart
omnisend.delete_order
Delete Order
omnisend.delete_product
Delete Product
omnisend.delete_category
Delete Category
omnisend.remove_cart_product
Remove Cart Product
omnisend.delete_product_category
Delete Product Category

03 · HOW IT WORKS

Omnisend in three steps.

01Your users connect OmnisendThey sign in to Omnisend on Arc0 Connect, under your brand, and approve the access you ask for.
02You set the rulesReads run, writes like “create Cart” can wait for the user, and “delete Cart” can be denied outright.
03Any agent can actYour agent calls Omnisend 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('omnisend', {
  read: 'allow',
  write: 'ask',        // create_cart
  destructive: 'deny',  // delete_cart
})

# 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 Omnisend connects.

Users sign in to Omnisend on Arc0 Connect and approve the scopes you request. Build with Arc0’s Omnisend OAuth app, or bring your own so the Omnisend consent screen names you. Tokens refresh automatically, and you can export them whenever you want.

The same Omnisend 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 · OAuth 2.0
CREDENTIALS: Per-tenant encrypted vault
MODEL SEES: Results only, never credentials
AUDIT LOG: Every call, on every plan

05 · WORKS WITH

Use Omnisend 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

Omnisend and Arc0, answered.

Q01

Can I use Omnisend with Claude, ChatGPT or Cursor?

Yes. Connect Omnisend 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 Omnisend actions you allow.

Q02

How do users connect Omnisend?

Q03

Which Omnisend actions can my agent take?

43 in total: 18 read, 19 write and 6 destructive, such as “create Cart”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Omnisend?

Yes. Actions like “delete Cart” 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 Omnisend too?

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

Get started

Plug Omnisend into your agent.

Your users connect Omnisend once, under your brand. Your agent gets 43 actions behind your policies, with every call on the record.

Connect Omnisend Browse all apps →

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