generated: '2026-08-26' method: searched source: https://github.com/newscred note: >- Both packages are first-party: they are published from repositories in the newscred GitHub organization (the Newscred/Welcome engineering org, now Optimizely Content Marketing Platform) and carry Optimizely / Welcome authorship. Registries queried unauthenticated on 2026-08-26: registry.npmjs.org. No first-party CMP client was found on PyPI, Maven Central, NuGet, pkg.go.dev, RubyGems, Packagist or crates.io — the SDK surface is JavaScript/TypeScript only. official_count: 2 packages: - name: '@optimizely/cmp-sdk' registry: npm url: https://www.npmjs.com/package/@optimizely/cmp-sdk repo: https://github.com/newscred/opti-cmp-sdk language: TypeScript official: true version: 0.0.5 published: '2026-08-11' license: MIT api: Optimizely CMP Open API v3 note: >- The current, actively developed SDK. Its types are generated from a checked-in OpenAPI document at specification/openapi.json in the same repo — which is the machine-readable contract harvested into openapi/newscred-cmp-open-api-openapi.json. Still 0.0.x, so the package itself signals pre-1.0 stability even though the API is v3. - name: '@welcomesoftware/cmp-sdk' registry: npm url: https://www.npmjs.com/package/@welcomesoftware/cmp-sdk repo: https://github.com/newscred/Welcome-Nodejs-SDK language: TypeScript official: true version: 1.2.2 published: '2026-08-03' first_published: '2023-06-08' releases: 11 license: ISC api: Welcome Open API v3 / Optimizely CMP Open API v3 note: >- The Welcome-branded Node SDK, still published and still maintained (latest release 2026-08-03). Covers auth, apiCaller, library, task, campaign, label, publishing, uploader and user modules and documents automatic access-token refresh on authorization errors. absent: pypi: null maven: null nuget: null go: null rubygems: null packagist: null crates: null note: >- Checked, nothing to record — no first-party Newscred/Welcome/Optimizely-CMP client library exists in these registries. The npm name `newscred` (0.0.2, 2014-11-16) is a THIRD-PARTY wrapper for the old NewsCred content API by an unrelated author and is deliberately excluded.