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

# Crypto wallet card

> Reference application for partners building a consumer crypto wallet card experience.

A crypto wallet card experience is a consumer app with <Tooltip headline="KYC" tip="Know Your Customer — identity verification that feeds attestation claims onto credentials." cta="Glossary →" href="/glossary">KYC</Tooltip>-verified users, multi-chain wallets, on-ramps, and a Visa card funded directly from the user's wallet. The card runs on **Visa Intelligent Commerce** — **your <Tooltip headline="Sigil" tip="Sumvin's portable, KYC-verified identity — Proof of Personhood." cta="Glossary →" href="/glossary">Sigil</Tooltip>, on a Visa card** — and the payments around it are <Tooltip headline="Atomic Money" tip="Sumvin's payments umbrella: ramps, card issuing, x402, and payment links." cta="Glossary →" href="/glossary">Atomic Money</Tooltip>. Sumvin provides the identity, wallet, and card-management substrate; partners compose it with on/off-ramp and card-issuing integrations.

<Snippet file="product-term-disambiguation.mdx" />

## Live

These slices are live today:

* **Sigil identity & onboarding** — onboard a user end-to-end with identity verification. See the [onboarding guide](/guides/onboarding) and [KYC guide](/guides/kyc).
* **Multi-chain wallets & Safe accounts** — create multi-chain wallets and a Safe smart account for each user. See the [wallets guide](/guides/wallets).
* **Card Management API** — drive card status, limits, and wallet-funded flows. See the [card issuing overview](/products/card-issuing/overview) and [card management API](/products/card-issuing/card-management-api), and [funding wallets](/products/card-issuing/funding-wallets).
* **Atomic Money buy/sell (on-ramp)** — hosted ramp sessions for buying and selling. See the [on/off-ramp overview](/products/ramps/overview) and [buy/sell](/products/ramps/buy-sell).

## Private preview

These slices are in private preview:

<Info>
  * **Off-ramp** — sell-to-fiat payout is in private preview.
  * **Bank / account linking** — linking a bank account through the on/off-ramp provider is in private preview. See [account linking](/products/ramps/bank-linking).
  * **End-to-end Visa card issuance** — the Card Management API and funding wallets are live; network-side provisioning runs through a partner rail in private preview. See the [Visa issuance rail](/products/card-issuing/visa-card-issuance).
</Info>

## Which primitives back it

* **Onboarding & Sigil** — see [onboarding](/guides/onboarding) and [KYC](/guides/kyc).
* **Wallets & Safe accounts** — see the [wallets guide](/guides/wallets).
* **Atomic Money ramps** — see [on/off-ramp overview](/products/ramps/overview) and [buy / sell](/products/ramps/buy-sell).
* **Card issuing** — see [card issuing overview](/products/card-issuing/overview) and [funding wallets](/products/card-issuing/funding-wallets).

## Where to start

<ol className="counter-style">
  <li>**[Onboarding guide](/guides/onboarding)** — bring a user online end-to-end.</li>
  <li>**[Wallets guide](/guides/wallets)** — multi-chain wallets and the Safe smart account that backs the card.</li>
  <li>**[Card issuing overview](/products/card-issuing/overview)** — the wallet-funded Visa card surface.</li>
  <li>**[On/off-ramp overview](/products/ramps/overview)** — account linking, on-ramp, and identity passthrough.</li>
</ol>

## Related

* [Stand up an account quickstart](/guides/quickstarts/stand-up-account)
* [Issue a Visa card quickstart](/guides/quickstarts/issue-card)
* [On-ramp quickstart](/guides/quickstarts/onramp-meld)