# We need exchanges **URL:** \ **Category:** Market\ **Created:** [January 4, 2025, 9:58am UTC](https://forum.grin.mw/t/we-need-exchanges/11491 "2025-01-04T09:58:08Z")\ **Posts on this page:** 1\ **Showing post:** 21
**Author:** ![ardocrat](https://yyz2.discourse-cdn.com/flex036/user_avatar/forum.grin.mw/ardocrat/32/5164_2.png) [@ardocrat](https://forum.grin.mw/u/ardocrat)\ **Post date:** [May 24, 2025, 3:44pm UTC](https://forum.grin.mw/t/we-need-exchanges/11491/21 "2025-05-24T15:44:35Z")
Multisig is needed to trade peer-to-peer, so 3rd side (AI Agent, algo or human) can lock amount and pass it or cancel payment after some time/action. Contracts transactions with 2+ participants can be useful as well, but marked as unsafe now. > [@Grin-wallet contract prototype](https://forum.grin.mw/t/grin-wallet-contract-prototype/9745): > > Grin contracts NOTE: The software has bugs and it may lose your funds. The author is not responsible for any damage it may cause. Use this in a VM on testnet wallet. I should mention that members of OC have not looked at this attempt yet, they were, like the community, informed I’m going to make a prototype, but I’m sharing this with the community and OC at the same time. This document attempts to explain the contract terminology as well as how to test a prototype including exchange deposit/wi… --- _[View the full topic](https://forum.grin.mw/t/we-need-exchanges/11491)._