Apollo REST API

REST discovered

Details

URL: https://api.apollo.io/api/v1
Docs: https://docs.apollo.io/reference

Authentication

Apollo API key api_key discovered Get key ↗

In Apollo, go to Settings > [Integrations](https://app.apollo.io/#/settings/integrations) > [API Keys](https://developer.apollo.io/keys#/), click Create new key, choose the endpoint access (or Set as master key), then click Create API key and copy the displayed key to a secure location. The walkthrough is in Create an API Key.

OAuth 2.0 oauth2 discovered

OAuth 2.0 — self-onboarding

Point your MCP client at the server URL and approve access in the browser. The server supports OAuth Dynamic Client Registration (RFC 7591), so the client registers itself automatically — no developer-portal app, client_id, or client_secret to create.