Klaviyo (API Key) icon

CONNECT APP

Build with Klaviyo (API Key)

Klaviyo unifies your data, channels, and AI agents in one platform—text, WhatsApp, email marketing, and more—driving growth with every interaction.

Marketing

  • API key

MCP

Give your agent Klaviyo (API Key) tools

Every Klaviyo (API Key) action is exposed as an MCP tool on Pipedream's remote server. Point a client at it with your end user's ID and Connect resolves that user's Klaviyo (API Key) account for each tool call — you store no tokens.

// accessToken: mint a short-lived token with the Connect SDK — see the MCP guide
const transport = new StreamableHTTPClientTransport(
  new URL("https://remote.mcp.pipedream.net/v3"),
  {
    requestInit: {
      headers: {
        Authorization: `Bearer ${accessToken}`,
        "x-pd-project-id": "{project_id}",
        "x-pd-environment": "production",
        "x-pd-external-user-id": "{external_user_id}", // any stable ID for this user in your system
        "x-pd-app-slug": "klaviyo",
      },
    },
  },
)

const mcp = new Client({ name: "my-agent", version: "1.0.0" })
await mcp.connect(transport)

const { tools } = await mcp.listTools()

// e.g. run Add Member To List:
const result = await mcp.callTool({
  name: "klaviyo-add-member-to-list",
  arguments: {
    list: "List",
    profileIds: ["Profile IDs"],
  },
})

API PROXY

Call the Klaviyo (API Key) API directly

For an endpoint with no pre-built tool, the Connect proxy forwards your request to the Klaviyo (API Key) API with the connected user's credentials attached. You store no tokens and write no refresh logic.

const resp = await pd.proxy.get({
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  accountId: "apn_xxxxxxx",
  url: "https://a.klaviyo.com/api/accounts/",
})

// Any allowed Klaviyo (API Key) endpoint works here. Pipedream attaches the
// connected account's credentials to the outgoing request.

SDK

Run Klaviyo (API Key) actions from your backend

Connect a user's Klaviyo (API Key) account once, then run Add Member To List on their behalf from your own code — TypeScript, Python, or plain HTTP.

import { PipedreamClient } from "@pipedream/sdk"

const pd = new PipedreamClient({
  projectId: process.env.PIPEDREAM_PROJECT_ID!,
  clientId: process.env.PIPEDREAM_CLIENT_ID!,
  clientSecret: process.env.PIPEDREAM_CLIENT_SECRET!,
  projectEnvironment: "production",
})

const result = await pd.actions.run({
  id: "klaviyo-add-member-to-list",
  externalUserId: "{external_user_id}", // any stable ID for this user in your system
  configuredProps: {
    klaviyo: { authProvisionId: "apn_xxxxxxx" },
    list: "List",
    profileIds: ["Profile IDs"],
  },
})

EVENTS

Klaviyo (API Key) triggers

Event sources your backend can deploy for users and receive through a webhook.

No Klaviyo (API Key) triggers are available yet.

MULTI-APP

Use Klaviyo (API Key) with other popular apps

Most products don't stop at one integration. Pair Klaviyo (API Key) with the other apps your users rely on, and ship use cases that span both.

REFERENCE

App details

Reference metadata for the Klaviyo (API Key) connector in the Pipedream registry.

App slug
klaviyo
Authentication
API key
Categories
Marketing
Actions
2
Triggers
0
API proxy
Available