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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "klaviyo-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/[email protected]"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "${KLAVIYO_KEY_MAIN}"
      }
    }
  }
}

claude mcp add klaviyo-mcp -e "KLAVIYO_KEY_MAIN=${KLAVIYO_KEY_MAIN}" -- npx -y @scalably-io/[email protected]

[mcp_servers.klaviyo-mcp]
command = "npx"
args = ["-y", "@scalably-io/[email protected]"]
env = { "KLAVIYO_KEY_MAIN" = "${KLAVIYO_KEY_MAIN}" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "klaviyo-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@scalably-io/[email protected]"
      ],
      "enabled": true,
      "environment": {
        "KLAVIYO_KEY_MAIN": "{env:KLAVIYO_KEY_MAIN}"
      }
    }
  }
}

{
  "mcpServers": {
    "klaviyo-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/[email protected]"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "${KLAVIYO_KEY_MAIN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=klaviyo-mcp&config=eyJjb21tYW5kIjoibnB4IiwiYXJncyI6WyIteSIsIkBzY2FsYWJseS1pby9rbGF2aXlvLW1jcEAxLjAuMCJdLCJlbnYiOnsiS0xBVklZT19LRVlfTUFJTiI6IiR7S0xBVklZT19LRVlfTUFJTn0ifX0%3D"
}

{
  "servers": {
    "klaviyo-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/[email protected]"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "${KLAVIYO_KEY_MAIN}"
      }
    }
  }
}

{
  "mcpServers": {
    "klaviyo-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@scalably-io/[email protected]"
      ],
      "env": {
        "KLAVIYO_KEY_MAIN": "${KLAVIYO_KEY_MAIN}"
      }
    }
  }
}

extensions:
  "klaviyo-mcp":
    enabled: true
    name: "klaviyo-mcp"
    type: stdio
    cmd: "npx"
    args:
      - "-y"
      - "@scalably-io/[email protected]"
    envs:
      "KLAVIYO_KEY_MAIN": "${KLAVIYO_KEY_MAIN}"
    timeout: 300

Placeholders to fill from your own secret store: ${KLAVIYO_KEY_MAIN}. The registry never accepts secret values.

This is a local package: the command runs on your machine.

Quality – / 100not scored

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

protocoln/a · weight 25

n/a
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygienen/a · weight 30

n/a
tools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool list unknown

dependencies33 · weight 15

fail
deps.known_vulns2 advisories to act on (malicious, or rated high or critical with a fix available): GHSA-8r9p-f939-6h3c in [email protected] (indirect, fixed in 1.16.1), GHSA-q3jh-wrc6-jgq8 in [email protected] (indirect, fixed in 1.16.1); 1 more of lower severity or without a fix
fail
deps.mcp_sdk_version@modelcontextprotocol/client 2.1.0 has 2 known advisories (GHSA-6prh-2h8m-c8cw, GHSA-6qxp-vccf-f47h); update @modelcontextprotocol/client to 2.3.0 or later
pass
deps.resolvable@scalably-io/[email protected] resolved: 196 packages

Tool list unknown · checked 2026-10-20 23:59 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 88 / 100

provenance85

livenessn/a

freshness85

hygiene95

+repository +dns-namespace +website ~liveness-unmeasured ~updated-42d-ago -unpinned-packages(1)

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Dependencies

@scalably-io/[email protected] npm195 dependencies, resolved · MCP SDK @modelcontextprotocol/sdk 1.30.1 · advisories checked 2026-10-20

advisory	severity	package	fixed in
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `2.2.0`
GHSA-22jm-h49p-29qwMCP TypeScript SDK: Experimental tasks were not tied to the session that created them	high	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `1.32.0`
GHSA-6qxp-vccf-f47hMCP TypeScript SDK: OAuth client could send credentials to an authorization server chosen by the MCP server	high	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `1.31.0`
GHSA-8r9p-f939-6h3cfollow-redirects sensitiveHeaders regex escaping can expose credential headers	high	`[email protected]`indirect	fixed in `1.16.1`
GHSA-q3jh-wrc6-jgq8follow-redirects array-form headers bypass cross-origin credential stripping	high	`[email protected]`indirect	fixed in `1.16.1`
GHSA-6prh-2h8m-c8cwMCP TypeScript client SDK: HTTP client transports and OAuth requests followed cross-origin redirects and re-sent custom headers and request bodies	moderate	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `2.3.0`
GHSA-6prh-2h8m-c8cwMCP TypeScript client SDK: HTTP client transports and OAuth requests followed cross-origin redirects and re-sent custom headers and request bodies	moderate	`@modelcontextprotocol/[email protected]`MCP SDK, indirect	fixed in `1.32.0`
GHSA-5r4p-p66f-jhc7Hono: `serveStatic` decodes the request path a second time, leading to bypass of middleware on static paths	moderate	`[email protected]`indirect	fixed in `4.13.11`

Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.

Endpoints

package	registry	version	runtime	secrets
`@scalably-io/klaviyo-mcp`	npm	1.0.0	npx	`KLAVIYO_KEY_MAIN`
`https://github.com/scalably-io/klaviyo-mcp/releases/download/v1.0.0/klaviyo-mcp.mcpb`	mcpb	unpinned	–

Tools (0)

No tools observed. Local packages are never executed by the registry.

Schemas: list_tools.

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Official server.json

{
  "name": "io.scalably/klaviyo-mcp",
  "title": "Klaviyo MCP",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "version": "1.0.0",
  "packages": [
    {
      "version": "1.0.0",
      "transport": {
        "type": "stdio"
      },
      "identifier": "@scalably-io/klaviyo-mcp",
      "runtimeHint": "npx",
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "environmentVariables": [
        {
          "name": "KLAVIYO_KEY_MAIN",
          "isSecret": true,
          "isRequired": true,
          "description": "Private API key for your main Klaviyo account. Add more accounts with extra KLAVIYO_KEY_<name> variables."
        },
        {
          "name": "KLAVIYO_API_BASE",
          "description": "Klaviyo API base URL, default https://a.klaviyo.com/api"
        },
        {
          "name": "KLAVIYO_RETRY_BASE_MS",
          "description": "Base delay in milliseconds for the retry backoff, default 1000"
        }
      ]
    },
    {
      "transport": {
        "type": "stdio"
      },
      "fileSha256": "447e37231ce6307913808a43ecaa0f4c42ff62ff861b777d2b65389530d0cb68",
      "identifier": "https://github.com/scalably-io/klaviyo-mcp/releases/download/v1.0.0/klaviyo-mcp.mcpb",
      "registryType": "mcpb"
    }
  ],
  "repository": {
    "url": "https://github.com/scalably-io/klaviyo-mcp",
    "source": "github"
  },
  "websiteUrl": "https://scalably.io/mcp/klaviyo-mcp",
  "description": "Klaviyo MCP: campaigns, flows, segments, metrics, reports, profiles across many accounts. 24 tools."
}