Licentivo Launch SDKs

Add merchant-account login and software licensing to your app in just one day.

With your existing application and Launch store configured, install one package, copy the generated connection function, and add login plus protected business actions. Follow the one-day integration plan and manual integration guide, then verify the sandbox purchase-to-use flow before production rollout.

The public v0.1.7 Release describes Launch package 0.1.7 with embedded official SDK 0.11.7. Check the application integration guide for the account-exchange flow and backend requirements. Match artifact checksums and source revisions when checking whether a public package contains a local fix.

Website · Documentation · Source code

Account login and license-protected application operations in Go, Python, C#, Java, JavaScript/TypeScript, Rust, Ruby, C and C++. MIT licensed.

Install only the Launch package for your language. Each package embeds the reviewed Licentivo SDK 0.11.7 and manages its adapter and SDK linking. Ordinary language dependencies still use their package manager.

The Launch merchant address is required at initialization. Select your existing software in Launch → 程序接入 → 接入检查与代码 to copy a connection function with the address, existing product mapping and public signing keys already filled in. The licensing service is fixed to https://www.licentivo.com. No client configuration file or manual entry of two internal product IDs is required.

Version: 0.1.7, with official SDK 0.11.7, paired with the Launch server 0.3.5-beta account-exchange source baseline. The commands below target this release. Check the version, source revision and checksums inside publication status and verification receipts; historical reports do not certify a newer package. The 0.1.7 release notes describe this update.

This update includes device-name/system-information reporting and native portability changes while retaining account ownership, recovery and logout retry behavior. Install one Launch package; it includes its reviewed Licentivo runtime. Confirm the matching backend and database revision before deploying the reviewed device-information clients.

Go requires 1.26+, Python 3.10+, .NET 8+, Java 17+, Node.js 20.3+, Rust 1.85+, Ruby 3.1+, C11 or C++17. Native packages must match the compiler ABI. Windows GNU/MinGW is the qualified native toolchain; other platforms require their normal curl/OpenSSL development libraries when building from source.

The manual nine-language guide covers installation, direct initialization, login, feature guards, restore, logout, device release, secure stores and errors. Each language has its own README and runnable examples. AI is optional; Launch's English prompts describe the same APIs and automatically filled parameters.

Initialization does not authorize a protected operation. Log in with the customer's merchant account, then execute protected business code through the package's feature guard. The wrapper obtains a short-lived identity assertion from Launch's /identity endpoint and passes it in memory to the official SDK for /api/v1/launch/exchange on Licentivo. The removed /credential endpoint returns HTTP 410 (LICENSE_CREDENTIAL_REMOVED); it no longer supplies keys. Launch Restore confirms the account online and obtains a fresh assertion. Applications needing offline startup use the official SDK's recovery contract; explicit denial must not fall back to offline authorization.

The Launch server manages merchant accounts, payments and entitlement delivery. This repository contains client libraries, public examples and release tools. It contains no server startup configuration, merchant credentials or payment keys.

See maintainer release instructions. Public registry installation checks and local signed SDK fixtures do not establish external merchant/payment/license acceptance; see acceptance procedures.