generated: '2026-08-13' method: searched source: >- npm registry.npmjs.org, pypi.org, repo.packagist.org, api.nuget.org, search.maven.org, proxy.golang.org, github.com/zerobounce note: >- ZeroBounce publishes first-party SDKs from the github.com/zerobounce org across JavaScript/Node, Python, PHP, .NET, Java, Android/Kotlin, Swift/iOS and Go, plus an official MCP server on npm. Several community wrappers exist on crates.io, RubyGems and Packagist under third-party accounts; those are recorded with official: false. Source-only wrappers in the org (C, C++, Pascal/Delphi, Rust) ship no registry package and are recorded with registry: github and version read from the repo, or null. packages: - language: javascript name: '@zerobounce/zero-bounce-sdk' registry: npm url: https://www.npmjs.com/package/@zerobounce/zero-bounce-sdk repository: https://github.com/zerobounce/zero-bounce-javascript official: true version: 2.1.10 published: '2026-07-27' - language: javascript name: '@zerobounce/mcp' registry: npm url: https://www.npmjs.com/package/@zerobounce/mcp repository: https://github.com/zerobounce/zerobounce-mcp official: true version: 0.1.8 published: '2026-06-17' note: >- Official ZeroBounce MCP server, distributed as a local stdio binary (`zerobounce-mcp`). Wraps @zerobounce/zero-bounce-sdk. See mcp/zerobounce-mcp.yml. - language: python name: zerobouncesdk registry: pypi url: https://pypi.org/project/zerobouncesdk/ repository: https://github.com/zerobounce/zero-bounce-python-sdk-setup official: true version: 2.2.3 published: '2026-06-17' - language: php name: zero-bounce/sdk registry: packagist url: https://packagist.org/packages/zero-bounce/sdk repository: https://github.com/zerobounce/zero-bounce-php-sdk-setup official: true version: 2.1.10 published: '2026-06-17' - language: csharp name: ZeroBounce.SDK registry: nuget url: https://www.nuget.org/packages/ZeroBounce.SDK repository: https://github.com/zerobounce/zero-bounce-csharp-sdk-setup official: true version: 2.1.5 published: '2026-06-17' note: Published by the ZeroBounceIntegrations NuGet account, projectUrl https://www.zerobounce.net/. - language: java name: com.zerobounce.java:zerobouncesdk registry: maven url: https://central.sonatype.com/artifact/com.zerobounce.java/zerobouncesdk repository: https://github.com/zerobounce/zero-bounce-java-sdk-setup official: true version: 1.2.0 published: '2025-01-13' note: >- Last Maven Central release predates the 2026 v2 API additions (ai_agent_mailbox sub-status, region-split endpoints) that the JS/Python/PHP SDKs shipped in 2026 — the Java SDK repo itself was pushed 2026-08-03 but no new artifact was published. - language: kotlin name: com.zerobounce.android:zerobouncesdk registry: maven url: https://central.sonatype.com/artifact/com.zerobounce.android/zerobouncesdk repository: https://github.com/zerobounce/zero-bounce-android-sdk-setup official: true version: 1.1.6 published: '2023-08-24' note: >- Android SDK artifact is nearly three years stale on Maven Central even though the setup repo was pushed 2026-08-03. Strongest abandonment signal in this set. - language: go name: github.com/zerobounce/zerobouncego registry: go url: https://pkg.go.dev/github.com/zerobounce/zerobouncego repository: https://github.com/zerobounce/zerobouncego official: true version: v1.3.0 published: '2026-01-26' - language: swift name: ZeroBounceSDK registry: github url: https://github.com/zerobounce/zero-bounce-ios-sdk repository: https://github.com/zerobounce/zero-bounce-ios-sdk official: true version: v2.1.3 published: null note: >- iOS SDK is distributed from the GitHub repo (Swift Package Manager) rather than a registry with a metadata endpoint; latest git tag is v2.1.3. No CocoaPods trunk entry answered (cocoapods.org/pods/ZeroBounceSDK did not resolve), so no registry-published date is available — checked, nothing to record. - language: c name: zerobounce-c-api-wrapper registry: github url: https://github.com/zerobounce/zerobounce-c-api-wrapper official: true version: null published: null note: Source-only wrapper in the ZeroBounce GitHub org; no tags and no package registry entry. - language: cpp name: zerobounce-cpp-api-wrapper registry: github url: https://github.com/zerobounce/zerobounce-cpp-api-wrapper official: true version: null published: null note: Source-only wrapper in the ZeroBounce GitHub org; no tags and no package registry entry. - language: pascal name: zerobounce-delphi-api-v2 registry: github url: https://github.com/zerobounce/zerobounce-delphi-api-v2 official: true version: null published: null note: Source-only Delphi/Pascal wrapper; no registry distribution. - language: rust name: zerobounce-rust-api registry: github url: https://github.com/zerobounce/zerobounce-rust-api official: true version: null published: null note: >- First-party Rust wrapper source lives in the ZeroBounce org but is not published to crates.io. The crates.io crate named `zerobounce` is a third-party build (see below). - language: rust name: zerobounce registry: crates.io url: https://crates.io/crates/zerobounce repository: https://github.com/twisted1919/zerobounce-rust official: false version: 1.0.0 published: '2022-08-15' note: Community crate, not published by ZeroBounce. - language: ruby name: zerobounce registry: rubygems url: https://rubygems.org/gems/zerobounce repository: https://github.com/afrase/zerobounce official: false version: 0.3.1 published: '2023-04-24' note: >- Community gem. ZeroBounce's own org has a zero-bounce-ruby repo but publishes no gem, so Ruby has no first-party registry distribution. - language: javascript name: n8n-nodes-zerobounce registry: npm url: https://www.npmjs.com/package/n8n-nodes-zerobounce repository: https://github.com/KalnuErelis/n8n-nodes-zerobounce official: false version: 0.2.1 published: '2025-11-10' note: >- n8n community node. A fork also sits in the ZeroBounce GitHub org (zerobounce/n8n-nodes-zerobounce) but the published npm package is the third-party original. summary: total: 17 official: 13 registries: - npm - pypi - packagist - nuget - maven - go - crates.io - rubygems - github currency_findings: - >- JS, Python, PHP and .NET SDKs all shipped in mid-2026 and track the current v2 API. - >- Java (2025-01-13) and Android (2023-08-24) Maven artifacts lag the API by a year or more despite active repo pushes in August 2026 — releases are not being cut. - >- Ruby and Rust have first-party source repos but no first-party registry package; integrators land on community builds instead.