specification: API Commons Packages specificationVersion: '0.1' provider: LaunchDarkly providerId: launchdarkly generated: '2026-08-27' method: searched source: >- Registry metadata endpoints queried directly (registry.npmjs.org, pypi.org/pypi, rubygems.org/api/v1, crates.io/api/v1, api.nuget.org/v3, search.maven.org, proxy.golang.org, repo.packagist.org) plus the github.com/launchdarkly organization repository list and the LaunchDarkly SDK documentation index. docs: https://launchdarkly.com/docs/sdk checked: '2026-08-27' note: >- Every entry below is published under an account LaunchDarkly controls — the `launchdarkly`/`@launchdarkly` npm scopes, the `com.launchdarkly` Maven group, the `LaunchDarkly.*` NuGet ids, `github.com/launchdarkly/*` Go modules — and each maps to a repository in the github.com/launchdarkly organization, so official:true is a verified attribution rather than a name-similarity guess. Versions and dates are read from the registry metadata endpoint on the date in `checked`. packages: # ── JavaScript / TypeScript ────────────────────────────────────────────── - name: '@launchdarkly/node-server-sdk' registry: npm url: https://www.npmjs.com/package/@launchdarkly/node-server-sdk language: JavaScript kind: server-sdk official: true version: 9.13.1 published: '2026-08-18' repository: https://github.com/launchdarkly/js-core - name: launchdarkly-node-server-sdk registry: npm url: https://www.npmjs.com/package/launchdarkly-node-server-sdk language: JavaScript kind: server-sdk official: true version: 7.0.4 published: '2024-03-01' status: superseded note: >- Pre-scope package name. Superseded by @launchdarkly/node-server-sdk, which shipped 9.13.1 on 2026-08-18. The 2024-03-01 date here is a rename, not abandonment of the Node server surface. - name: '@launchdarkly/js-client-sdk' registry: npm url: https://www.npmjs.com/package/@launchdarkly/js-client-sdk language: JavaScript kind: client-sdk official: true version: 4.10.0 published: '2026-08-26' repository: https://github.com/launchdarkly/js-core - name: launchdarkly-js-client-sdk registry: npm url: https://www.npmjs.com/package/launchdarkly-js-client-sdk language: JavaScript kind: client-sdk official: true version: 3.9.5 published: '2026-08-06' - name: '@launchdarkly/js-client-sdk-common' registry: npm url: https://www.npmjs.com/package/@launchdarkly/js-client-sdk-common language: TypeScript kind: sdk-core official: true version: 1.30.2 published: '2026-08-06' - name: launchdarkly-node-client-sdk registry: npm url: https://www.npmjs.com/package/launchdarkly-node-client-sdk language: JavaScript kind: client-sdk official: true version: 3.4.3 published: '2026-08-07' - name: launchdarkly-react-client-sdk registry: npm url: https://www.npmjs.com/package/launchdarkly-react-client-sdk language: JavaScript kind: client-sdk framework: React official: true version: 3.9.4 published: '2026-08-10' - name: '@launchdarkly/react-native-client-sdk' registry: npm url: https://www.npmjs.com/package/@launchdarkly/react-native-client-sdk language: TypeScript kind: mobile-sdk framework: React Native official: true version: 10.20.0 published: '2026-08-26' - name: '@launchdarkly/browser' registry: npm url: https://www.npmjs.com/package/@launchdarkly/browser language: TypeScript kind: observability-sdk official: true version: 0.1.32 published: '2026-08-26' repository: https://github.com/launchdarkly/observability-sdk - name: '@launchdarkly/observability' registry: npm url: https://www.npmjs.com/package/@launchdarkly/observability language: TypeScript kind: observability-sdk official: true version: 1.1.19 published: '2026-08-13' repository: https://github.com/launchdarkly/observability-sdk - name: '@launchdarkly/vercel-server-sdk' registry: npm url: https://www.npmjs.com/package/@launchdarkly/vercel-server-sdk language: TypeScript kind: edge-sdk official: true version: 1.3.55 published: '2026-08-18' - name: '@launchdarkly/cloudflare-server-sdk' registry: npm url: https://www.npmjs.com/package/@launchdarkly/cloudflare-server-sdk language: TypeScript kind: edge-sdk official: true version: 2.7.31 published: '2026-08-18' - name: launchdarkly-electron-client-sdk registry: npm url: https://www.npmjs.com/package/launchdarkly-electron-client-sdk language: JavaScript kind: client-sdk framework: Electron official: true version: 1.7.0 published: '2022-10-21' status: stale note: >- Last publish 2022-10-21 — nearly four years behind the rest of the JavaScript family. This is the clearest decay signal in LaunchDarkly's package surface; the Electron target is effectively frozen while every other client SDK ships monthly. - name: '@launchdarkly/mcp-server' registry: npm url: https://www.npmjs.com/package/@launchdarkly/mcp-server language: TypeScript kind: mcp-server official: true version: 0.6.2 published: '2026-05-08' repository: https://github.com/launchdarkly/mcp-server note: >- The local (stdio) MCP server. See mcp/launchdarkly-mcp.yml — LaunchDarkly also operates a hosted remote MCP endpoint, which is the surface an agent can reach without a local install. # ── Python ─────────────────────────────────────────────────────────────── - name: launchdarkly-server-sdk registry: pypi url: https://pypi.org/project/launchdarkly-server-sdk/ language: Python kind: server-sdk official: true version: 9.16.1 published: '2026-07-24' repository: https://github.com/launchdarkly/python-server-sdk - name: launchdarkly-eventsource registry: pypi url: https://pypi.org/project/launchdarkly-eventsource/ language: Python kind: sdk-dependency official: true version: 1.7.2 published: '2026-07-22' # ── Ruby ───────────────────────────────────────────────────────────────── - name: launchdarkly-server-sdk registry: rubygems url: https://rubygems.org/gems/launchdarkly-server-sdk language: Ruby kind: server-sdk official: true version: 8.15.0 published: '2026-08-20' repository: https://github.com/launchdarkly/ruby-server-sdk # ── Go ─────────────────────────────────────────────────────────────────── - name: github.com/launchdarkly/go-server-sdk/v7 registry: go url: https://pkg.go.dev/github.com/launchdarkly/go-server-sdk/v7 language: Go kind: server-sdk official: true version: v7.16.0 published: '2026-08-25' repository: https://github.com/launchdarkly/go-server-sdk # ── Rust ───────────────────────────────────────────────────────────────── - name: launchdarkly-server-sdk registry: crates.io url: https://crates.io/crates/launchdarkly-server-sdk language: Rust kind: server-sdk official: true version: 3.2.0 published: '2026-08-11' repository: https://github.com/launchdarkly/rust-server-sdk # ── Java / Android ─────────────────────────────────────────────────────── - name: com.launchdarkly:launchdarkly-java-server-sdk registry: maven url: https://central.sonatype.com/artifact/com.launchdarkly/launchdarkly-java-server-sdk language: Java kind: server-sdk official: true version: 7.9.1 published: '2025-06-25' repository: https://github.com/launchdarkly/java-core - name: com.launchdarkly:launchdarkly-android-client-sdk registry: maven url: https://central.sonatype.com/artifact/com.launchdarkly/launchdarkly-android-client-sdk language: Java kind: mobile-sdk official: true version: 5.8.0 published: '2025-05-27' repository: https://github.com/launchdarkly/android-client-sdk # ── .NET ───────────────────────────────────────────────────────────────── - name: LaunchDarkly.ServerSdk registry: nuget url: https://www.nuget.org/packages/LaunchDarkly.ServerSdk language: C# kind: server-sdk official: true version: 8.16.0 published: null note: >- Version read from the NuGet registration index `upper` bound. api.nuget.org's registration index does not carry a publish date on the page fetched, so the date is recorded null rather than guessed. repository: https://github.com/launchdarkly/dotnet-core - name: LaunchDarkly.ClientSdk registry: nuget url: https://www.nuget.org/packages/LaunchDarkly.ClientSdk language: C# kind: client-sdk official: true version: 5.9.6 published: null note: Same as above — version from the registration index, publish date not exposed there. # ── PHP ────────────────────────────────────────────────────────────────── - name: launchdarkly/server-sdk registry: packagist url: https://packagist.org/packages/launchdarkly/server-sdk language: PHP kind: server-sdk official: true version: 6.8.3 published: '2026-08-24' # ── Binaries / tooling (not language SDKs) ─────────────────────────────── - name: ldcli registry: github-releases url: https://github.com/launchdarkly/ldcli/releases language: Go kind: cli official: true version: v3.11.0 published: '2026-08-25' note: >- Also distributed through the LaunchDarkly Homebrew tap (github.com/launchdarkly/homebrew-tap). Command surface is documented in cli/launchdarkly-cli.yml. - name: ld-find-code-refs registry: github-releases url: https://github.com/launchdarkly/ld-find-code-refs/releases language: Go kind: cli official: true version: v2.17.0 published: '2026-08-13' note: Scans a repository for feature-flag references and feeds the Code references API. - name: ld-relay registry: github-releases url: https://github.com/launchdarkly/ld-relay/releases language: Go kind: proxy official: true version: v8.21.0 published: '2026-08-20' note: >- The self-hosted Relay Proxy. This is why openapi/_original/launchdarkly-relay-proxy-openapi.yml carries a http://localhost:8030 server block — that is the correct default for a customer-run binary, not a placeholder base URL to repair. summary: package_count: 27 official_count: 27 registries: - npm - pypi - rubygems - go - crates.io - maven - nuget - packagist - github-releases languages: - JavaScript - TypeScript - Python - Ruby - Go - Rust - Java - C# - PHP most_recent_release: '2026-08-26' currency_finding: >- 22 of the 25 dated entries published within the last five weeks. Two exceptions matter: launchdarkly-electron-client-sdk has not shipped since 2022-10-21, and the Java/Android Maven artifacts last shipped in mid-2025 while every other server SDK ships monthly. The REST contract they wrap (LD-API-Version 20240415) is older than all of them, so no SDK here trails its own API version.