# Memocode > Memocode countersigns each payment with a memo of what the money was meant for—on existing card networks. Memocode is made by Magnitude Inc. (https://www.magnitude.money/). ## Pages - [Memocode](https://memocode.ai/): Memocode countersigns each payment with a memo of what the money was meant for—on existing card networks. ## Optional - [Full text](https://memocode.ai/llms-full.txt): every page above as plain Markdown - [Intent Infrastructure](https://intentinfrastructure.com/llms.txt): a sibling site, also from Magnitude - [OpenOrigin](https://openorigin.sh/llms.txt): a sibling site, also from Magnitude - [BrainBridge](https://brainbridge.sh/llms.txt): a sibling site, also from Magnitude - [Fleet Factory](https://fleetfactory.ai/llms.txt): a sibling site, also from Magnitude