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

# Quickstart

> Short Decision API sandbox path — entities, underwrite, webhooks — then production when Vence enables your program.

# Quickstart

Get from zero to an explainable decision when API access is provisioned. Path: **sandbox first**, then the same integration shapes in **production when Vence enables live** for your program.

<Note>
  Intended hosts `sandbox.api.vence.one` and `api.vence.one` are **founder-beta / coming online**. Use the base URL Vence gives your org (Console or Contact us). Do not assume public live DNS today.
</Note>

<Steps>
  <Step title="Open Console (sandbox)">
    Sign in at [console.vence.one](https://console.vence.one) with an invite and create a **sandbox** API key.
  </Step>

  <Step title="Create an entity">
    `POST /v1/entities` with your bearer key against your provisioned sandbox base URL (intended hostname: `https://sandbox.api.vence.one`).
  </Step>

  <Step title="Attach signals">
    Link identity and ingest transactions or feature snapshots as your program requires.
  </Step>

  <Step title="Underwrite">
    Call the underwrite endpoint. Read verdict, reasons, and versions.
  </Step>

  <Step title="Fulfill on webhooks">
    Verify signatures and act on decision events.
  </Step>

  <Step title="Graduate to production when enabled">
    Point the same SDK at your live base URL (intended hostname: `https://api.vence.one`) with a live key when Vence enables production. [Contact us](https://vence.one/contact) for commercial access.
  </Step>
</Steps>

Next: [Authentication](/developers/authentication), [API overview](/developers/api-overview), [Underwrite guide](/guides/underwrite).