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

> ## Agent Instructions
> You are reading OnlyX Help: the OnlyX Help Center and the OnlyX developer documentation. OnlyX is an AI chatting and CRM platform for OnlyFans agencies. Its AI chatter is called Hugo in the app.
> Pages at the site root (for example /inbox/..., /hugo/..., /billing/...) are Help Center articles for agency owners, admins, chatters and creators who use the app at app.onlyx.ai. Words in bold are the exact button, menu and label names the app shows; keep them exactly as written. When these pages do not answer a question, the person can email support at support@onlyx.ai.
> Pages under /developers are the developer documentation. REST API base URL: https://api.onlyx.ai/v1 (authenticate with `Authorization: Bearer <API key>`; keys start with onx_sk_ and are created in app.onlyx.ai under Settings > API & MCP). MCP server: https://mcp.onlyx.ai/mcp (OAuth, or a Bearer API key). In the API the AI chatter is `ai` on the wire. Money is integer US cents in fields ending in Cents; timestamps are UTC ISO-8601.
> Rules for assistants acting on a user's behalf: discover ids with list calls and never invent them; before any call that reaches a real fan or the live OnlyFans account (sending a message, releasing a chat to the AI, turning AI on for a chat, resolving a hand-off, turning review mode off, changing the welcome message, creating a tracking link) show the user the exact content and get explicit confirmation; send every POST with an Idempotency-Key and reuse it on retry; never resend a message whose delivery status is unconfirmed; never ask a creator for her OnlyFans password or codes - she signs in herself through a connect link and the OnlyX Login app.

# Sign in with OnlyX Login on iPhone (TestFlight)

> Install OnlyX Login on your iPhone through Apple's TestFlight app, then sign in to OnlyFans yourself from your agency's link.

<Badge color="green">For creators</Badge>

Your agency sent you a link to connect your OnlyFans account. With it, you sign in to OnlyFans yourself, in the free OnlyX Login app on your iPhone.

## Before you start

* The link from your agency. It works for 24 hours, and it stops working once your account is connected.
* An iPhone. On an iPad, the page asks you to use an iPhone or a computer instead.
* Apple's free TestFlight app. OnlyX Login is not in the App Store yet, so it installs through TestFlight. The page links to both apps.
* Your OnlyFans email and password.
* You do not need an OnlyX account.

## Install OnlyX Login

Do this once. If OnlyX Login is already on your iPhone, go to [Sign in to OnlyFans](#sign-in-to-onlyfans).

<Steps>
  <Step title="Open your link">
    On your iPhone, open the link from your agency. Safari, Chrome and Firefox all work.

    The page shows a card called **Sign in with the OnlyX Login app**.

    <Frame caption="**1** **Get the app (TestFlight)** installs the app. **2** **Open in OnlyX Login** starts your sign-in.">
      <img className="block dark:hidden" src="https://mintcdn.com/onlyx/GlSdjgQ4YW5Ux4-e/images/help/for-creators/onlyx-login-iphone/iphone-card-light.png?fit=max&auto=format&n=GlSdjgQ4YW5Ux4-e&q=85&s=01d3f094a77a9eb9fc90d086190dc9dc" alt="The OnlyX Login card on an iPhone, with the Get the app (TestFlight) button and the Open in OnlyX Login button marked" width="1400" height="1556" data-path="images/help/for-creators/onlyx-login-iphone/iphone-card-light.png" />

      <img className="hidden dark:block" src="https://mintcdn.com/onlyx/GlSdjgQ4YW5Ux4-e/images/help/for-creators/onlyx-login-iphone/iphone-card-dark.png?fit=max&auto=format&n=GlSdjgQ4YW5Ux4-e&q=85&s=8996bb455b7d56847151e2536bdd2f4c" alt="The OnlyX Login card on an iPhone, with the Get the app (TestFlight) button and the Open in OnlyX Login button marked" width="1400" height="1556" data-path="images/help/for-creators/onlyx-login-iphone/iphone-card-dark.png" />
    </Frame>
  </Step>

  <Step title="Install TestFlight">
    If you already have TestFlight, skip this step.

    Tap **Don't have TestFlight yet? Get it from the App Store first**. Install TestFlight from the App Store. It is free and made by Apple.
  </Step>

  <Step title="Install OnlyX Login through TestFlight">
    Go back to the page. Tap **Get the app (TestFlight)**.

    TestFlight opens the invitation. Tap **Accept**, then tap **Install**.
  </Step>

  <Step title="Open the app once">
    In TestFlight, tap **Open**. You can also open OnlyX Login from your Home Screen.

    The app says "Waiting for your link". This is correct. Opening the app once lets your link start it later.
  </Step>
</Steps>

## Sign in to OnlyFans

<Note>
  OnlyFans may ask for your face. For that, the most reliable ways are OnlyX Login on a Mac or Windows computer, or Happ. Ask your agency which link to use.
</Note>

<Steps>
  <Step title="Open your sign-in in the app">
    Go back to the page from your link. Tap **Open in OnlyX Login**.
  </Step>

  <Step title="Allow your iPhone to open the app">
    Your iPhone asks whether to open OnlyX Login. Tap **Open**.

    OnlyX Login opens the OnlyFans sign-in page, in a private window inside the app.
  </Step>

  <Step title="Sign in to OnlyFans">
    Sign in with your OnlyFans email and password, as you always do.
  </Step>

  <Step title="Allow the camera if OnlyFans asks">
    OnlyFans may ask you to confirm your identity with your face. If it does, allow the camera when your iPhone asks. Then follow the instructions on the screen. If the check does not finish, stop and tell your agency.

    For help with this step, see [Face check tips and what OnlyX can see](/for-creators/face-check-tips).
  </Step>

  <Step title="Wait for Connected">
    Keep the app open while it connects your account. When the app says "Connected", you are done.

    The page from your link now says **You're connected**.
  </Step>
</Steps>

## If tapping the button does nothing

Chat apps often refuse to open app links. In that case, copy the app sign-in link on the page, and paste it into the app.

<Steps>
  <Step title="Copy the app sign-in link">
    On the page, tap **Copy app sign-in link**. The button changes to **App sign-in link copied**.

    <Frame caption="**1** The page gives the same fix in its last step: copy the app sign-in link, then paste it in the app.">
      <img className="block dark:hidden" src="https://mintcdn.com/onlyx/GlSdjgQ4YW5Ux4-e/images/help/for-creators/onlyx-login-iphone/iphone-paste-step-light.png?fit=max&auto=format&n=GlSdjgQ4YW5Ux4-e&q=85&s=d32e810c07ec36deca8b4522f928a1f5" alt="The iPhone install steps on the OnlyX Login card, with the last step marked: If nothing happens when you tap the button" width="1400" height="1556" data-path="images/help/for-creators/onlyx-login-iphone/iphone-paste-step-light.png" />

      <img className="hidden dark:block" src="https://mintcdn.com/onlyx/GlSdjgQ4YW5Ux4-e/images/help/for-creators/onlyx-login-iphone/iphone-paste-step-dark.png?fit=max&auto=format&n=GlSdjgQ4YW5Ux4-e&q=85&s=342a1d26eba6abe277b99b94eca81407" alt="The iPhone install steps on the OnlyX Login card, with the last step marked: If nothing happens when you tap the button" width="1400" height="1556" data-path="images/help/for-creators/onlyx-login-iphone/iphone-paste-step-dark.png" />
    </Frame>
  </Step>

  <Step title="Paste it into the app">
    Open OnlyX Login. If it shows an earlier result, tap **Done** first. Tap **Paste your link**. If your iPhone asks whether OnlyX Login may paste, allow it.

    Your sign-in starts in the app. Continue from step 3 of [Sign in to OnlyFans](#sign-in-to-onlyfans).
  </Step>
</Steps>

Paste the link that you copied on the page. The app cannot use the web link to the page itself.

## If something goes wrong

<AccordionGroup>
  <Accordion title="Nothing happens when I tap Get the app (TestFlight)">
    TestFlight is not on your iPhone yet. Tap **Don't have TestFlight yet? Get it from the App Store first**, and install TestFlight. Then go back to the page and tap **Get the app (TestFlight)** again.
  </Accordion>

  <Accordion title="OnlyX Login says &#x22;Nothing on the clipboard looks like a connect link&#x22;">
    You copied something else, for example the web link to the page. Or you did not allow OnlyX Login to paste.

    Go back to the page, and tap **Copy app sign-in link**. Then open the app, and tap **Paste your link** again. If your iPhone asks whether OnlyX Login may paste, allow it.
  </Accordion>

  <Accordion title="The page says &#x22;Your browser refused the clipboard&#x22;">
    The page shows the app sign-in link in a box instead. Tap the box, and choose **Copy**. Then open the app, and tap **Paste your link**. If your iPhone asks whether OnlyX Login may paste, allow it.
  </Accordion>

  <Accordion title="The page says &#x22;This app sign-in link has expired or is unavailable&#x22;">
    Each time the page opens, it makes a new sign-in link for the app. That link works once, and for 15 minutes. Tap **Get a new app sign-in link**. Then tap **Open in OnlyX Login**, or copy the new link.
  </Accordion>

  <Accordion title="OnlyX Login says &#x22;This link has expired&#x22;">
    The app sign-in link was used already, or its time ran out. Go back to the page, and tap **Get a new app sign-in link**. Then open your sign-in again. The app calls your agency "your manager".
  </Accordion>

  <Accordion title="I did not allow the camera">
    Open your iPhone's Settings, then OnlyX Login, then Camera, and switch it on. Then go back to the page, tap **Get a new app sign-in link**, and tap **Open in OnlyX Login**.
  </Accordion>

  <Accordion title="The page says &#x22;Sign in from one of these&#x22;">
    You opened the link on a device without OnlyX Login, such as an iPad or an Android phone. Open the same link on your iPhone, or on a Mac or Windows computer.
  </Accordion>

  <Accordion title="The page says &#x22;Link no longer works&#x22;">
    The link from your agency has expired or was cancelled. Links work for 24 hours. Ask your agency for a new link.

    If the message says to check your connection, the page did not load. Check your internet connection, and reload the page.
  </Accordion>
</AccordionGroup>

## What's next

<Columns cols={2}>
  <Card title="Face check tips and what OnlyX can see" icon="scan-face" href="/for-creators/face-check-tips" horizontal />

  <Card title="Sign in with OnlyX Login on a Mac" icon="laptop" href="/for-creators/onlyx-login-mac" horizontal />

  <Card title="Put your phone on the OnlyX network with Happ" icon="wifi" href="/for-creators/happ-proxy" horizontal />
</Columns>