Huginn System for Building Agents That Perform Automated Tasks for You Online
…two ravens named Huginn and Muninn sit on Odin’s shoulders. The ravens tell Odin everything they see and hear. Odin sends Huginn and Muninn out at dawn, and the birds fly all over the world before returning at dinner-time. As a result, Odin is kept informed of many events.
Open source. For installation on your own server.