# Apollo.io

Probo reads your Apollo.io account's team members through the Apollo REST API so you can review who has access. Probo reviews Apollo teammates (account seats), not prospect or contact records.

:::caution
Use a **master API key** created in Apollo under **Settings** > **Integrations** > **API Keys** with **Set as master key** enabled. A **non-master, endpoint-scoped key** will **not** work, because the Get a List of Users endpoint that Probo reads is accessible only to master keys.
:::

## Prerequisites

- Probo organization administrator access
- The **Apollo account admin** role, or a permission profile that grants API key creation
- A **master API key** (created with the **Set as master key** toggle), since Probo reads the master-key-only Get a List of Users endpoint

## Collected Fields

| Probo field | Apollo.io field                                          | Notes                                                         |
| ----------- | -------------------------------------------------------- | ------------------------------------------------------------- |
| Name        | `name`                                                   | Falls back to first and last name, then the email             |
| Email       | `email`                                                  |                                                               |
| Role        | `role`                                                   | The Apollo permission-profile name for the user               |
| Admin       | `role`                                                   | Flagged as an administrator when the role name equals `Admin` |
| Status      |  |                                                               |
| MFA         |  |                                                               |
| Last login  |  |                                                               |
| External ID | `id`                                                     | Stable identifier used to track the account across reviews    |
| Created at  |  |                                                               |

## Step 1: Create an API Key

![Creating a master API key in Apollo settings](/docs/access-review/apollo-create-api-key.webp)

1. In Apollo (signed in as an account admin), go to **Settings** > **Integrations** > **API Keys** > **Create new key**.
2. Name the key (e.g. `Probo Access Review`) and toggle **Set as master key** so it can reach the Get a List of Users endpoint that Probo reads.
3. Save the key immediately and store it securely. Apollo may not show it again.

## Step 2: Connect in Probo

1. In Probo, go to **Access Reviews** > **Sources** > **Add Source**.
2. Find **Apollo.io**, click **API Key**, paste the key, and click **Connect**.

Probo names the source **Apollo.io** (the fixed provider name), since Apollo exposes no stable account-name endpoint. Probo pulls the account's members into your campaigns.

## Troubleshooting

- **Key rejected.** Confirm it's a master key created with **Set as master key** enabled. A non-master, endpoint-scoped key is rejected because the Get a List of Users endpoint is master-key-only.
- **No members appear.** The key must be created by an account admin (or a permission profile that grants API key creation) and belong to the Apollo account you're reviewing.