> ## 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.

# Card issuing overview

> Your Sigil, on a Visa card — a verified identity that becomes a spendable card carrying the user's rules, limits, and agent permissions.

**Your Sigil, on a Visa card.** A <Tooltip headline="Sigil" tip="Sumvin's portable, KYC-verified identity — Proof of Personhood a user carries across products." cta="Glossary →" href="/glossary">Sigil</Tooltip> is the user's verified identity; card issuing is how that identity becomes a card you can spend with. The card carries the user's rules, limits, and agent permissions everywhere it goes — the same authorisation that governs the rest of their Sumvin life, on a piece of plastic and a tap.

Sumvin is a launch partner on Visa Intelligent Commerce — the rails built for agents that pay.

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

## Why this exists

Card-network rails — issuance, PAN delivery, transaction streams — are not something a partner integrates against directly. Sumvin holds the user binding to their [Sigil](/identity/overview), the lifecycle state machine, and the on-chain wallet that backs spend, then exposes a single API for partners to drive the card forward. End-to-end issuance through the network runs over the Visa issuance partner rail; the surface partners build against today is the lifecycle management layer and the funding wallet that backs it.

## The pieces

| Piece                                                             | What it is                                                                                                                             | Status          |
| ----------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | --------------- |
| [Card Management API](/products/card-issuing/card-management-api) | List, get, freeze, unfreeze, report lost, report stolen, activate. The state machine for an issued card.                               | Live            |
| [Funding wallets](/products/card-issuing/funding-wallets)         | The Safe smart account on the card's chain. Value in the wallet is what the card draws on.                                             | Live            |
| [Visa card issuance](/products/card-issuing/visa-card-issuance)   | The rail that turns a Sumvin card record into a spendable Visa card. Network-side provisioning runs through the Visa issuance partner. | Private preview |

<Info>
  The Card Management API and funding wallets are live today. End-to-end Visa card issuance is in private preview: network-side provisioning runs through the Visa issuance partner rail, and partners lining up now help shape the issuance spec and secure a place in the launch cohort. Contact your account manager to scope your rollout.
</Info>

## How a card composes

```
┌────────────────────────┐
│ Card                   │   id, last_four, brand, exp, state
│  external_id           │
│  linked_wallet_id ─────┼───┐
│  status (state machine)│   │
└────────────────────────┘   │
                             ▼
              ┌────────────────────────┐
              │ Funding wallet         │   Safe smart account
              │  address (0x…)         │   on the card's chain
              │  chain_id              │
              └────────────────────────┘
                             │
                             ▼
              ┌────────────────────────┐
              │ Safe on Sei            │   Sei is the launch chain
              │  EIP-1271 verification │   (chain ID 1329)
              │  Agent-signed actions  │
              └────────────────────────┘
```

The card record carries identifying metadata and a state, bound to the user's Sigil. The funding wallet is a [Safe smart account](/concepts/safes-and-identity) on the card's chain — there is no credit line, so balance in the wallet is what authorises a transaction.

## Where to start

| Concern          | Where to go                                                       | When                                                   |
| ---------------- | ----------------------------------------------------------------- | ------------------------------------------------------ |
| Card lifecycle   | [Card management API](/products/card-issuing/card-management-api) | Freeze, unfreeze, report lost or stolen, activate      |
| Funding wallet   | [Funding wallets](/products/card-issuing/funding-wallets)         | When the card needs balance to authorise a transaction |
| Conceptual model | [Card issuing concept](/concepts/card-issuing)                    | Before integrating — read this first                   |
| Reference app    | [Crypto wallet card](/overview/use-cases/crypto-wallet-card)      | If you're building the consumer surface this unlocks   |

## Related

* [Sigil](/identity/overview) — the verified identity the card is bound to.
* [Issue a card quickstart](/guides/quickstarts/issue-card)
* [Safes and identity](/concepts/safes-and-identity)
* [Funding wallet (glossary)](/glossary)
* [Visa card issuance](/products/card-issuing/visa-card-issuance) — private preview