# SetAPI proc (client)

Source: https://ref.dm-lang.org/client/proc/SetAPI
Added in BYOND 514.

### Format
> `SetAPI(Api, Key, Value)`

### Args
- `Api`: the name of the API (e.g. "steam")
- `Key`: the name of the value to change
- `Value`: the new value to set


Interfaces with supported external APIs to write information. Currently this only has meaning for Steam, for specially built games that have a Steam app ID.

This proc returns null any time the call or its results are invalid.

|                                                                       Key                                                                       |Return type|                                                                            Description                                                                            |
|-------------------------------------------------------------------------------------------------------------------------------------------------|-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|`"steam"` API  <br/>Requires that the server and client are using a valid Steam app ID, such as when a game is built for standalone distribution.|           |                                                                                                                                                                   |
|                                                                   stat:*Name*                                                                   |    num    |                Changes the value of the stat called `Name`. Returns 1 on success. This may fail if the stat change is too much or is out of range.                |
|                                                               achievement:*Name*                                                                |    num    |Earns the achievement called `Name`, or clears it. Value is expected to be a number, or number in text form, where 0 will clear the achievement and 1 will earn it.|

### See also
- [GetAPI proc (client)](https://ref.dm-lang.org/client/proc/GetAPI.md)
- [CheckPassport proc (client)](https://ref.dm-lang.org/client/proc/CheckPassport.md)