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

# Custom API / SDK integration

> Add Filecheck to any stack by embedding the Element or calling the REST API.

No plugin? Add Filecheck to any platform in two parts: gate the upload on the client, and verify the job on your server.

<Steps>
  <Step title="Get your keys and a workflow">
    From the [dashboard](https://admin.filecheck.io), grab a **publishable key**, a **secret key**, and a **workflowId**.
  </Step>

  <Step title="Embed the Element (client)">
    Drop in the Element, mount it, and gate your submit button on `canProceed`.

    ```html theme={null}
    <script src="https://cdn.filecheck.io/element/v1/filecheck.js"></script>
    <div id="fc-slot"></div>
    <script>
      const fc = Filecheck('pk_live_…');
      const intake = fc.elements.create('intake', { workflowId: 'wf_…' });
      intake.mount('#fc-slot');
      intake.on('status', ({ canProceed, jobId }) => {
        submitBtn.disabled = !canProceed;
        hiddenJobIdInput.value = jobId ?? '';
      });
    </script>
    ```

    See [Installation](/element/installation) for async loading and sizing.
  </Step>

  <Step title="Verify the job (server)">
    Before fulfilling, verify the submitted `jobId` with your secret key.

    ```bash theme={null}
    curl https://api.filecheck.io/jobs/{jobId} \
      -H "Authorization: Bearer sk_live_…"
    ```

    See [Verify jobs](/server/verify-jobs) and the full [API reference](/api-reference/introduction).
  </Step>
</Steps>

<Note>
  Prefer a fully headless flow with no widget? Submit files directly with `POST /jobs` and poll or use webhooks. See [Headless & custom platforms](/integrations/headless).
</Note>