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Overview

Apollo has two roles in Nous:
  1. Enrichment — Apollo’s people match API enriches contacts with email, phone, title, and company data. Replaces Prospeo when enabled.
  2. Sequence signals — Apollo sequences (emails sent, replies, bounces) ingest as activity signals via webhook.

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Connect Apollo

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For enrichment

  1. In Apollo, go to Settings → API Keys and copy your API key.
  2. In Nous, go to Settings → Integrations → Apollo.
  3. Paste your key and toggle Use for enrichment on.
When Apollo enrichment is enabled, it takes priority over Prospeo. Toggle it off to fall back to Prospeo.

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For sequence signals (webhook)

Apollo does not have a native outbound webhook for sequences. Forward Apollo sequence events to Nous using a custom webhook endpoint. Map Apollo sequence events like this:

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Enrichment fields

When enrichment runs via Apollo, Nous captures:

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Environment variables

Apollo enrichment uses your workspace API key stored in the database — no server-level env var needed.