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

# Quickstart

> Create an account flow, run KYC, and send your first payment.

## Get started in three steps

This quickstart focuses on the public Krypton API surface that is documented in this portal.

### Step 1: Authenticate a user

<AccordionGroup>
  <Accordion icon="user" title="Sign in or create account">
    Call `POST /api/v1/login` to authenticate with your ID token and initialize user/wallet state.
  </Accordion>

  <Accordion icon="at-sign" title="Set username">
    Call `POST /api/v1/set_username` to attach the human-readable identifier used by payment flows.
  </Accordion>
</AccordionGroup>

### Step 2: Run KYC checks

<AccordionGroup>
  <Accordion icon="shield-check" title="Create KYC applicant">
    Use `POST /api/v1/kyc/applicant` and fetch access tokens through `POST /api/v1/kyc/access-token`.
  </Accordion>

  <Accordion icon="server" title="Track KYC status">
    Poll `POST /api/v1/kyc/check-status/{user_id}` or `GET /api/v1/kyc/status/{email}`.
  </Accordion>
</AccordionGroup>

### Step 3: Send and monitor a payment

<Accordion icon="send" title="Transfer USDC">
  Call `POST /api/v1/send_usdc` or `POST /wallet/send-usdc` based on your integration path.
</Accordion>

<Accordion icon="receipt-text" title="Read transaction state">
  Use `GET /circle/transaction/{transaction_id}` and `GET /api/v1/latest_transactions_by_username/{username}` for status and history.
</Accordion>

## Next steps

Once core payment flows work, add read-only market and strategy data endpoints.

<CardGroup cols={2}>
  <Card title="Backend API" icon="wallet" href="/api-reference/introduction">
    Authentication, account profile, KYC, and send payment workflows.
  </Card>

  <Card title="Web3 API" icon="link" href="/api-reference/introduction">
    Transaction status, quote endpoints, and read-only market data.
  </Card>

  <Card title="Hedge Fund API" icon="trending-up" href="/api-reference/introduction">
    Read-only strategy metadata, pricing, and vault details.
  </Card>
</CardGroup>

<Note>
  Wallet-resolution endpoints are intentionally excluded from public docs.
</Note>