Klaviyo for AI agents

Klaviyo is an email and SMS marketing platform e-commerce brands use to segment customers, send campaigns, and track revenue from messages. 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 Klaviyo See the 225 actions ↓

MarketingOAuth 2.0MCP + RESTklaviyo.com

AUDIT LOG · KLAVIYOPOLICY: acme-support

09:41:07 · claude · u_8f2read

klaviyo.get_tag

Get tag✓ allowed · 212ms

09:41:08 · claude · u_8f2read

klaviyo.get_flow

Get flow✓ allowed · 164ms

09:41:09 · claude · u_8f2write

klaviyo.create_tag

Create tag✓ approved · approved by user

09:41:12 · claude · u_8f2destructive

klaviyo.delete_tag

Delete tag✕ blocked · policy: deny

EVERY KLAVIYO CALL, ON THE RECORD

01 · USE CASES

What agents do in Klaviyo.

Add a customer to a segment

Add a profile to a marketing list or segment after a qualifying purchase event comes in.

Look up a customer profile

Pull a profile's event history and list memberships before answering a support question.

Approve a campaign before sending

Require sign-off before a campaign send job goes out, since it reaches every profile on the list.

02 · ACTIONS

225 Klaviyo actions, graded by risk.

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

read

126

Look things up. Allowed by default.

klaviyo.get_tag
Get tag
klaviyo.get_flow
Get flow
klaviyo.get_form
Get form
klaviyo.get_list
Get list
klaviyo.get_tags
Get tags
klaviyo.get_event
Get event
klaviyo.get_flows
Get flows
klaviyo.get_forms
Get forms
klaviyo.get_image
Get image
klaviyo.get_lists
Get Lists
klaviyo.get_coupon
Get coupon
klaviyo.get_events
Get events
klaviyo.get_images
Get images
klaviyo.get_metric
Get metric
klaviyo.get_account
Get account
klaviyo.get_coupons
Get coupons

+ 110 MORE

write

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

klaviyo.create_tag
Create tag
klaviyo.update_tag
Update tag
klaviyo.create_list
Create list
klaviyo.update_list
Update list
klaviyo.create_event
Create event
klaviyo.update_image
Update image
klaviyo.create_coupon
Create coupon
klaviyo.update_coupon
Update coupon
klaviyo.create_profile
Create profile
klaviyo.create_segment
Create segment
klaviyo.create_webhook
Create webhook
klaviyo.update_profile
Update profile
klaviyo.update_segment
Update segment
klaviyo.update_webhook
Update webhook
klaviyo.create_campaign
Create campaign
klaviyo.create_template
Create template

+ 53 MORE

destructive

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

klaviyo.delete_tag
Delete tag
klaviyo.delete_flow
Delete flow
klaviyo.delete_list
Delete list
klaviyo.delete_coupon
Delete coupon
klaviyo.delete_segment
Delete segment
klaviyo.delete_webhook
Delete webhook
klaviyo.delete_campaign
Delete campaign
klaviyo.delete_template
Delete template
klaviyo.delete_tag_group
Delete tag group
klaviyo.delete_coupon_code
Delete coupon code
klaviyo.delete_catalog_item
Delete catalog item
klaviyo.cancel_campaign_send
Cancel Campaign Send
klaviyo.delete_catalog_variant
Delete catalog variant
klaviyo.delete_catalog_category
Delete catalog category
klaviyo.delete_tag_relationships
Delete Tag Relationships
klaviyo.remove_profile_from_list
Remove Profile from List

+ 14 MORE

03 · HOW IT WORKS

Klaviyo in three steps.

01Your users connect KlaviyoThey sign in to Klaviyo on Arc0 Connect, under your brand, and approve the access you ask for.
02You set the rulesReads run, writes like “create tag” can wait for the user, and “delete tag” can be denied outright.
03Any agent can actYour agent calls Klaviyo 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('klaviyo', {
  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 Klaviyo connects.

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

The same Klaviyo 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 Klaviyo 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

Klaviyo and Arc0, answered.

Q01

Can I use Klaviyo with Claude, ChatGPT or Cursor?

Yes. Connect Klaviyo 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 Klaviyo actions you allow.

Q02

How do users connect Klaviyo?

Q03

Which Klaviyo actions can my agent take?

225 in total: 126 read, 69 write and 30 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 Klaviyo?

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 Klaviyo too?

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

Get started

Plug Klaviyo into your agent.

Your users connect Klaviyo once, under your brand. Your agent gets 225 actions behind your policies, with every call on the record.

Connect Klaviyo Browse all apps →

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