@shipeasy/sdk

Feature gates, runtime configs, experiments, and metrics for the Shipeasy hosted service.

Source-available under the Shipeasy-SAL 1.0. Use it freely as a client of Shipeasy. Don't use it to build a competing service.

Install

npm install @shipeasy/sdk
# or
pnpm add @shipeasy/sdk

For React projects use @shipeasy/sdk-react which wraps this package with a <ShipeasyProvider> and hooks.

Quickstart — browser

import { FlagsClientBrowser } from "@shipeasy/sdk/client";

const client = new FlagsClientBrowser({
  sdkKey: process.env.NEXT_PUBLIC_SHIPEASY_CLIENT_KEY!,
});

await client.identify({ user_id: "user-123", plan: "pro" });

if (client.getFlag("new_checkout")) {
  // ship it
}

const cfg = client.getConfig<{ max_uploads: number }>("upload_limits");
const { params } = client.getExperiment("hero_cta", {
  primary_label: "Sign up",
});

identify() automatically merges browser context (locale, timezone, path, referrer, screen_*, user_agent) and a persisted anonymous_id into the payload — so gate rules can target by locale or holdouts can hash anonymous visitors out of the box.

Quickstart — server (Node, Cloudflare Worker, Deno)

import { FlagsClient } from "@shipeasy/sdk/server";

const client = new FlagsClient({ sdkKey: process.env.SHIPEASY_SERVER_KEY! });

const cfg = await client.getConfig("plan_limits", { user_id: "u-1" });

Drop-in <script> loader (no bundler)

<script
  src="https://cdn.shipeasy.ai/sdk/loader.js"
  data-sdk-key="sdk_client_..."
  data-user-id="user-123"
  data-user-email="u@x.com"
  data-user-plan="pro"
  data-attrs='{"country":"US"}'
  defer
></script>
<script>
  await window.shipeasy.ready;
  if (window.shipeasy.getFlag("new_checkout")) { /* … */ }
</script>

The loader IIFE is published to a public R2 bucket on every release and cached for 1y at loader-vX.Y.Z.js (immutable) plus a rolling 5-minute loader.js.

Devtools overlay

Press Shift+Alt+S on any page running the SDK (or append ?se=1 to the URL). The Shipeasy devtools panel mounts in a Shadow DOM overlay and lets you flip every gate / config / experiment / translation for the current session only — handy for QA, demos, and bug repro.

Documentation

Full docs at docs.shipeasy.ai. API surfaces covered there: targeting rules, holdouts, sequential stats, custom metrics, Slack digests, OAuth/SSO, Claude/MCP integration.

License

Shipeasy-SAL 1.0 — source-available, non-commercial-use, permitted for use as a Shipeasy client.