Connect Apollo as an enrichment provider in the waterfall cascade and/or import your Apollo lists and sequences. API key from Apollo settings; position it in the cascade by your plan's per-credit economics.
As an enrichment provider
Settings → Enrichment → Providers → Apollo → API key. Apollo serves contact-info and firmographic fields in the cascade. Position by cost: on most plans it slots as an early-cascade provider.
List import
Integrations → Apollo → Import Lists brings saved searches and lists into turgo as audiences, with match-and-dedupe against existing Golden Records.
Sequence import
Apollo sequences import like Outreach/Salesloft ones (structure yes, copy needs rework). Import opt-outs first, always.
Credit awareness
Apollo enrichment consumes your Apollo credits per its plan rules. The cascade's cost dashboard shows Apollo-attributed spend so you can compare its cost-per-fill against alternatives.