> ## Documentation Index
> Fetch the complete documentation index at: https://primer.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

## How Primer enhances every payment

Every payment on Primer can be powered by a set of built-in features that help you route, secure, and optimize transactions by default.

![How Primer enhances every payment](https://goat-assets.production.core.primer.io/marketing/external-docs/overview-pages/features/banner/light.png)

## Processing payments

> [card] [Save payment methods](https://primer.io/docs/payment-services/save-payment-methods.md)
>
> Let customers save cards for faster repeat purchases and smoother checkout.

> [card] [Co-badged cards](https://primer.io/docs/payment-services/cobadged-cards)
>
> Support domestic and international schemes on a single card and optimize routing.

> [card] [Advanced metadata mapper](https://primer.io/docs/payment-services/advanced-metadata-mapper.md)
>
> Attach structured metadata to payments to improve reporting and downstream logic.

> [card] [Surcharge](https://primer.io/docs/payment-services/surcharge.md)
>
> Apply fees dynamically based on the selected payment method or currency.

## Boosting performance

> [card] [Network Tokenization](https://primer.io/docs/payment-services/network-tokenization.md)
>
> Use network-issued tokens to improve authorization rates.

> [card] [Fallbacks](https://primer.io/docs/payment-services/fallbacks.md)
>
> Automatically reroute failed payments to a backup processor to boost success rates.

## Keeping your payments safe

> [card] [3D Secure](https://primer.io/docs/payment-services/3d-secure/overview.md)
>
> Add an extra layer of verification for card payments with flexible 3DS flows.

> [card] [Fraud checks](https://primer.io/docs/payment-services/fraud-checks/overview.md)
>
> Route transactions through fraud prevention tools based on configurable rules.

> [card] [Fingerprinting](https://primer.io/docs/payment-services/fingerprinting.md)
>
> Create a unique ID for each payment method to help detect fraud and inform workflows.


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