# SDK Reference
source: https://developer.mastercard.com/mastercard-agent-pay/documentation/sdk-reference/index.md

👉 Only use this section is your service uses SDKs.

👉 If you are creating a custom SDK you should also add this section and document how to download and use the SDK. Ensure you set the draft value to false in the front matter above if you wish to see this page render.
Alert: Documentation of legacy SDKs are not supported in JAMstack, your SDK must be a higher order one that hides the complexities of your API rather than just being a wrapper around it. See Sonic Branding as an example. You can also refer to SDK Strategies page for more details about Mastercard's approach to SDKs.