Apollo.io

Overview

Connect your users to Apollo.io for sales intelligence, lead enrichment, and engagement sequences.

Property	Value
Provider ID	apollo
Category	CRM & Sales
PKCE	Not supported
Token refresh	Automatic
Redirect URI	Shown in Developer Portal

Step 1: Register an OAuth App in Apollo

Go to Apollo Integrations

In Apollo, go to Settings > Integrations at app.apollo.io/#/settings/integrations.

Connect the API integration

Find the API option and click Connect, then choose OAuth registration.

Configure the application

Fill in:

• App Name: A name shown to users when they authorize
• App Logo: Optional logo
• OAuth Redirect URL: Copy the Redirect URI from the Developer Portal. Must use HTTPS. You can register up to 4 URLs (comma-separated).
• Scopes: Select the scopes the application needs. read_user_profile and app_scopes are added by default.

Get credentials

Submit the form, then copy the Client ID and Client Secret. The secret is only displayed once.

Note

Apollo’s OAuth registration lives inside the Apollo app at Settings → Integrations, not at a separate developer portal. The end user registering the app must have the “Can authorize third-party apps/integrations via OAuth” permission, or the Admin or Billing and Seat Manager role. Changing scopes later requires re-running the entire OAuth registration flow.

Warning

Never share your Client Secret publicly. Store it securely and only enter it in the Alter Vault Developer Portal.

Step 2: Add to Alter Vault

Open the Developer Portal

Go to portal.alterauth.com and navigate to the application.

Add Apollo.io provider

Go to OAuth Providers > Add Provider > Apollo.io.

Enter credentials

• Client ID: Paste your Apollo.io Client ID
• Client Secret: Paste your Apollo.io Client Secret

Select scopes

Choose the scopes the application needs.

Save

Click Save. The provider is now active.

Available Scopes

Scope	Description
api:default	Standard access to Apollo.io API for contacts, accounts, and sequences

Notes

• Apollo.io uses a single api:default scope that provides standard access to the API, including contacts, accounts, and sequences.
• See the Apollo OAuth 2.0 (Partners) guide for the official authorization flow documentation.
• Apollo access tokens expire after 30 days; Alter Vault refreshes them automatically using the refresh token.