generated: '2026-08-13'
method: searched
source: https://developers.postscript.io/docs/javascript-sdk-api-reference
note: >-
  Postscript ships exactly one first-party client library: a browser JavaScript SDK distributed from
  its own CDN host (sdk.postscript.io) and installed automatically by the Postscript Shopify app.
  There is no first-party package on npm, PyPI, RubyGems, Packagist, crates.io, NuGet, Maven Central
  or pkg.go.dev — an unauthenticated npm registry search for "postscript sms" (2026-08-13) returned
  only third-party work (@sunrise-integration/postscript-sms 1.0.0, published 2021-12-09, and
  n8n-nodes-postscript 1.0.0, published 2026-04-25), neither of which is published by Postscript.
packages:
- language: javascript
  registry: cdn
  name: postscript-sdk
  url: https://sdk.postscript.io/sdk.bundle.js
  install: '<script src="https://sdk.postscript.io/sdk.bundle.js"></script>'
  docs: https://developers.postscript.io/docs/javascript-sdk-api-reference
  official: true
  version: null
  published: null
  note: >-
    Browser SDK exposed as window.postscript (identify, getSubscriberId, event) plus the onsite
    opt-in popups and checkout opt-in checkbox. Distribution is a single unpinned CDN URL — there is
    no version in the path and no registry metadata endpoint to query, so a consumer cannot tell
    which build they are loading and neither can we. A direct GET of the bundle from outside a
    merchant storefront returned HTTP 403 on 2026-08-13, so no version string could be read from
    the artifact either. version/published recorded as null: checked, nothing publishable to record.
third_party:
- language: javascript
  registry: npm
  name: '@sunrise-integration/postscript-sms'
  url: https://www.npmjs.com/package/@sunrise-integration/postscript-sms
  official: false
  version: 1.0.0
  published: '2021-12-09'
  note: Shogun Frontend integration published by Sunrise Integration, not by Postscript.
- language: javascript
  registry: npm
  name: n8n-nodes-postscript
  url: https://www.npmjs.com/package/n8n-nodes-postscript
  official: false
  version: 1.0.0
  published: '2026-04-25'
  note: n8n community node published by Velocity-BPA, not by Postscript.
registries_checked:
- registry: npm
  result: no first-party package
- registry: pypi
  result: no first-party package
- registry: rubygems
  result: no first-party package
- registry: packagist
  result: no first-party package
- registry: crates.io
  result: no first-party package
- registry: nuget
  result: no first-party package
- registry: maven-central
  result: no first-party package
- registry: pkg.go.dev
  result: no first-party package
source_code:
  github_org: null
  note: >-
    No Postscript GitHub organization exists — api.github.com/orgs/{postscript, postscriptio,
    postscript-io, PostscriptIO} all returned HTTP 404 on 2026-08-13. Postscript publishes no
    open-source client code.