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Klaviyo MCP server

by scalably.io·io.scalably/klaviyo-mcp·v1.0.0
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Klaviyo MCP: campaigns, flows, segments, metrics, reports, profiles across many accounts. 24 tools.

B80/100grade B
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Safety scan
B80/100

full report

Adoption
Growing

0 stars20 downloads/wk

Reviews

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If you have run it, two minutes of your experience saves the next person an afternoon.

Klaviyo MCP tools

No tool declarations could be read from the package source. They show once the server is installed.

Public scan report

scanner v0.1.10 · 2026-10-15 · same rubric, same numbers if you re-run it

no findings
  • Code scan3 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitystatic API keys via environment variables6/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identitynamespace and repository owner differ; website matches verified namespace6/10
Overall 80/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Klaviyo MCP compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
80/100
higher than 60% of 48,255 servers
Downloads a week
20
more than 7% of 12,191 servers with a package

Install Klaviyo MCP in Claude Code, Cursor or VS Code

Runs npx -y @scalably-io/klaviyo-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add klaviyo-mcp -- npx -y @scalably-io/klaviyo-mcp
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What the publisher says

From the Klaviyo MCP repository's README, as published. We do not edit it. Read it on GitHub

Klaviyo MCP

Klaviyo MCP server. 24 read-only tools cover campaigns, flows, segments, metrics, reports, and profiles across many accounts.

<!-- mcp-name: io.scalably/klaviyo-mcp -->

Install

Claude Code:

claude mcp add klaviyo -e KLAVIYO_KEY_MAIN=pk_your_key -- npx -y @scalably-io/klaviyo-mcp

Codex:

codex mcp add klaviyo --env KLAVIYO_KEY_MAIN=pk_your_key -- npx -y @scalably-io/klaviyo-mcp

Claude Desktop: download klaviyo-mcp.mcpb from the latest GitHub release and open it. Claude Desktop's install form only accepts one account (KLAVIYOKEYMAIN).

Setup

  1. Create a private API key in Klaviyo under Settings > API Keys.
  2. Set one KLAVIYOKEY=pkxxx environment variable per account, for example KLAVIYOKEYMAIN or KLAVIYOKEYSTOREONE. The server auto-discovers every KLAVIYOKEY variable at startup; listaccounts shows what it found.
  3. Multiple Klaviyo accounts (agencies, multi-brand portfolios) work only through Claude Code or Codex, since both let you pass arbitrary extra environment variables. Add as many KLAVIYOKEY variables as you have accounts, then call tools with the matching account argument (the name after KLAVIYOKEY, lowercased).
  4. All 24 tools are read-only.

Tools (24)

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Klaviyo MCP: common questions

Is Klaviyo MCP server safe?
Mostly: it is graded B (80/100). Read the Klaviyo MCP safety report
How do I install Klaviyo MCP?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Klaviyo MCP need an API key?
Yes. The registry entry asks for KLAVIYO_KEY_MAIN.
Is Klaviyo MCP maintained?
The last commit was 21 days ago (2026-10-14). The latest release is v1.0.0.
How does Klaviyo MCP compare with other MCP servers?
safety score 80/100 (higher than 60% of 48,255 servers); downloads a week 20 (more than 7% of 12,191 servers with a package). Full comparison.

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