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Klaviyo Install & Auth · jeremylongshore | DecimalAI

codingby jeremylongshore

Klaviyo Install & Auth

jeremylongshore/klaviyo-install-auth

Source jeremylongshore/claude-code-plugins-plus-skills ↗License MIT

Install and configure Klaviyo Node.js SDK with API key authentication.

SkillScore86Maintained

Automatic

Coding packsaasklaviyoemail-marketing

Last verified 8/30/2026

What it changes

Passed 19 of 22 test cases with the skill, and 8 of 22 without it.

Without skill36%

With skill86%

Checks it passed that the model alone missed

Identifies @klaviyo/sdk as deprecated.
Specifies Python version 3.10 or higher.
Directs replacing the dependency with klaviyo-api.

and 10 more in the full report

11 fixed8 passed either way3 still failing0 broke

Pass-rate lift: +50 pp
Tokens: +34%
Agent turns: 0%
Response time: -24%

Model gemini-3.6-flashMeasured 8/30/2026v119 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/jeremylongshore-klaviyo-install-auth/SKILL.md https://app.decimal.ai/s/jeremylongshore-klaviyo-install-auth/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add jeremylongshore-klaviyo-install-auth, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/jeremylongshore-klaviyo-install-auth/ and pins it in .decimal/skills.lock

decimalai skills add jeremylongshore-klaviyo-install-auth

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/jeremylongshore-klaviyo-install-auth/SKILL.md https://app.decimal.ai/s/jeremylongshore-klaviyo-install-auth/SKILL.md

Raw file: /s/jeremylongshore-klaviyo-install-auth/SKILL.md ↗ · machine-readable summary at /s/jeremylongshore-klaviyo-install-auth.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 11 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 11

Prompt

If a development team chooses to implement their server backend in Python instead of Node.js for Klaviyo API integration, what is the minimum Python runtime version required?

What was checked, without and with the skill
Checked	Without skill	With skill
Specifies Python version 3.10 or higher.	Missed	Passed

case-13 · gemini-3.6-flash · 8/30/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md106 lines3 files

Klaviyo Install & Auth

Overview

Set up the official klaviyo-api Node.js SDK and configure private API key authentication against Klaviyo's REST API (revision 2024-10-15). The workflow below is the high-level path; the verbatim code for every step lives in the full implementation walkthrough, and copy-paste sequences live in worked examples.

Prerequisites

Node.js 18+ (or Python 3.10+ for Python SDK)
Klaviyo account at https://www.klaviyo.com/
Private API key from Settings > API Keys in Klaviyo dashboard
Public API key (for client-side only -- never use in server code)

Instructions

The full sequence is five steps. The essentials are below; drill into references/implementation.md for the complete code of each step (verify script, revision header, Python setup, scope table).

Step 1: Install the Official SDK

# Node.js (official SDK -- NOT @klaviyo/sdk, that's deprecated)
npm install klaviyo-api

Important: The npm package is klaviyo-api, not @klaviyo/sdk. The SDK exports per-resource API classes (ProfilesApi, EventsApi, etc.) that each take an ApiKeySession.

Step 2: Configure Authentication

Store the private key in .env and confirm it is gitignored. Klaviyo uses two key types:

Key Type	Prefix	Use Case	Header
Private API Key	`pk_`	Server-side REST API	`Authorization: Klaviyo-API-Key pk_***`
Public API Key	6-char	Client-side Track/Identify	Query param `company_id`

Step 3: Initialize the SDK

Track record

Benchmark

19 / 22

test cases passed, vs 8 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

jeremylongshore / claude-code-plugins-plus-skills

skills/.curated/klaviyo-install-auth/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v1Bundled 2 files

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Klaviyo Install & Auth

Overview

Prerequisites

Instructions

Step 1: Install the Official SDK

Step 2: Configure Authentication

Step 3: Initialize the SDK

Track record

Benchmark

Adoption

SkillSafety

Source

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