# UMIP 128 -Add DFX as a Polygon collateral currency

**URL:** <https://discourse.uma.xyz/t/umip-128-add-dfx-as-a-polygon-collateral-currency/1540>\
**Category:** technical UMIPs\
**Created:** [March 3, 2022, 3:09pm UTC](https://discourse.uma.xyz/t/umip-128-add-dfx-as-a-polygon-collateral-currency/1540 "2022-03-03T15:09:28Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Mhairi](https://yyz2.discourse-cdn.com/flex032/user_avatar/discourse.uma.xyz/mhairi/32/48_2.png) [@Mhairi](https://discourse.uma.xyz/u/Mhairi)\
**Post date:** [March 3, 2022, 3:09pm UTC](https://discourse.uma.xyz/t/umip-128-add-dfx-as-a-polygon-collateral-currency/1540/1 "2022-03-03T15:09:28Z")

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This UMIP proposes adding **DFX** for use as collateral in UMA contracts for the Polygon Network. DFX has already been approved for use as collateral on Ethereum.

> <https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-128.md>