MCP server
Klaviyo MCP server
Klaviyo ships an official MCP server, and it is good at what it targets: connecting AI clients to your Klaviyo data. Modiva's Klaviyo MCP server differs in shape: it is hosted (nothing to install) and its 15 typed tools live in the same server as Shopify, your ad accounts and your social platforms, so one agent can reason across email, store and paid data.
Email rarely acts alone: the questions an agent gets asked ("which campaign drove those orders", "add these buyers to a winback list") span Klaviyo plus the store and ad platforms around it. Modiva exposes profiles, lists, segments, campaigns, metrics and flows as typed tools behind the same endpoint as everything else, so cross-platform questions do not need cross-server plumbing.
15 typed Klaviyo tools
Grouped by resource, not by platform — so the same tool names work across every connected account.
accounts_
get · identity
profiles_
list · get · create · update
lists_
list · profiles · add · segments
campaigns_
list · get
metrics_
list · events
flows_
list · get
Add it to your AI client
Point any MCP-compatible client (Claude, Cursor, Windsurf, …) at the hosted server and the Klaviyo tools are discovered automatically.
{
"mcpServers": {
"modiva": {
"url": "https://mcp.modiva.ai/v1",
"headers": { "Authorization": "Bearer mk_live_…" }
}
}
}Connect Klaviyo to your agent
Get your MCP key — freeFAQ
Klaviyo already has an official MCP server. Why use Modiva's?
Use Klaviyo's if you only need Klaviyo. Modiva makes sense when your agent also touches Shopify, ads or social: one hosted endpoint, one key, shared tool conventions, and no local MCP processes to run.
What can an agent read and write in Klaviyo?
Profiles and lists are read-write (create and update profiles, add to lists). Segments, campaigns, metrics, events and flows are readable, which covers reporting and audience operations.
Do I install anything locally?
No. Modiva's MCP server is remote: point your MCP client at the hosted URL with your key and the Klaviyo tools appear next to your other connected platforms.
Related
Modiva is a hosted, multi-tenant MCP server. Your Klaviyo tokens are encrypted and never shared between workspaces.