# \#opensource

**URL:** https://forum.klever.org/tag/opensource/150.md

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## [Smart Contract Source Code Validation is Live on KleverScan Mainnet!](https://forum.klever.org/t/smart-contract-source-code-validation-is-live-on-kleverscan-mainnet/4431)

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**Author:** [@Duka](https://forum.klever.org/u/Duka)\
**Replies:** 0\
**Last updated:** [May 18, 2026, 5:18pm UTC](https://forum.klever.org/t/smart-contract-source-code-validation-is-live-on-kleverscan-mainnet/4431 "2026-05-18T17:18:46Z")

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The Klever Blockchain ecosystem just took a massive leap forward. We are thrilled to announce that Smart Contract Source Code Submission and Validation is officially live on Mainnet! This is a milestone we’ve been ea…

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## [Klever Vesting -- Open Source Token Sale with Configurable Vesting for KleverChain](https://forum.klever.org/t/klever-vesting-open-source-token-sale-with-configurable-vesting-for-kleverchain/4357)

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**Author:** [@Maik](https://forum.klever.org/u/Maik)\
**Replies:** 0\
**Last updated:** [April 7, 2026, 7:38pm UTC](https://forum.klever.org/t/klever-vesting-open-source-token-sale-with-configurable-vesting-for-kleverchain/4357 "2026-04-07T19:38:47Z")

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Hey everyone, We just open-sourced Klever Vesting – a complete token sale platform with built-in vesting for KleverChain. It’s MIT licensed and we’re looking for developers who want to build on it, fork it, or contribut…