ToolTrust
C40/100
Smithery

janmacher02-xl8y-klaviyo-mcp

mcpsmithery

@Smithery

Klaviyo email marketing MCP server. Query campaigns, flows, segments, and subscriber profiles directly from your AI assistant. Get performance metrics, look up customers by email, and browse automation flows — all via the official Klaviyo REST API v3.

By Smithery | 19 findings | Scanned 5/4/2026 | tooltrust-scanner/v0.3.9

8 High3 Medium1 Low7 Info

Risk Summary

Needs Approval

Secret Handling plus Dep Visibility raises enough risk that this tool should not be auto-trusted.

Potential impact: Sensitive credentials may be read, logged, or leaked to external systems.

Recommended action: Keep this tool behind manual approval and avoid unattended runs until the risky capabilities are narrowed or removed.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (19)

  • HighAS-010

    🔑Insecure Secret Handling ×7

    input parameter "api_key" appears to accept a secret or credential

    get_campaignsget_campaign_metricsget_profileget_flowsget_segmentsget_account_overviewsearch_profiles

    Fix: Avoid accepting raw credentials as input parameters. Use secret managers (e.g. 1Password CLI, AWS Secrets Manager) and ensure credentials are never logged or stored in agent traces.

  • HighAS-002

    ⚠️Excessive Permissions

    search_profiles:tool declares network permission

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • MediumAS-002

    ⚠️Excessive Permissions ×3

    tool declares fs permission

    get_profileget_segmentssearch_profiles

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout

    search_profiles:tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×7

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    get_campaignsget_campaign_metricsget_profileget_flowsget_segmentsget_account_overviewsearch_profiles

    Fix: Review and remediate the identified issue.

Scan this tool yourself

Reproduce this audit locally, integrate into CI, or let your agent audit its own tools.

Install once, then scan any MCP server:

$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y janmacher02-xl8y-klaviyo-mcp"

Adjust the package name if your npm registry name differs from the tool ID. View source

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