> For the complete documentation index, see [llms.txt](https://docs.verified.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verified.network/reference/verified-sdk/margin-traded-issues/offering-collateral.md).

# Offering collateral

The following function is called on the Margin issue manager contract in the Verified SDK.

### **Offering collateral for a Margin issue**

```typescript
offerCollateral( 
        currency: string, 
        amount: string,
        security: string
        )
```

| currency | address of cash token offered as collateral |
| -------- | ------------------------------------------- |
| amount   | amount of cash token offered as collateral  |
| security | address of security in margin issue pool    |