Bountysource

When the users agree that they are satisfied and the project maintainer merged the proposed changes to the source-code, Bountysource would transfer the money acting as a trustee during the whole process.

[3] On May 11, 2006, Bountysource released their Subversion browser, titled bsSvnBrowser, under the GNU General Public License.

The website was originally written in PHP, but as of March 18, 2006, it switched to Ruby on Rails.

[6] It relaunched as a service using the GitHub-API in 2012 to focus on being a trustee for software development bounties that are collected through PayPal, Bitcoin, and other methods.

[9][10] As of June 2023, Bountysource appears to have stopped paying bounties to developers with verified claims.