Apollo.io

At a glance

Availability: Experimental (how to enable).
Auth: API key.
Connection: The key from APOLLO_API_KEY is sent as the X-Api-Key header.
Docs: https://docs.apollo.io/reference/authentication

Set these per environment. See Connect an integration.

Variable	Required	Description
`APOLLO_API_KEY`	Yes	Apollo.io API key (sent as the X-Api-Key header) Docs.

Create an API key: In Apollo, go to Settings → Integrations → API (https://app.apollo.io/#/settings/integrations/api) and click Create new key. Select the endpoints the key may access, or toggle ‘Set as master key’ for full access (some endpoints, like listing users, require a master key).
Check your plan’s API access: API access and hourly/daily rate limits depend on your Apollo plan; free accounts have limited API quotas. Search endpoints are free to call, but enrichment and organization search consume Apollo credits.
Set the environment variable: Add APOLLO_API_KEY to your .env.
Verify access: Run the Search People tool with a simple keyword query.

The API key is sent in the X-Api-Key header; since September 2024 Apollo no longer accepts keys in query or body parameters
Enrich Person, Enrich Organization, and Search Organizations consume Apollo credits
Email addresses in search results may be locked unless your plan/credits allow revealing them

Tool	Access	Description
Search People	Read	Search the Apollo database for people by keywords, titles, and locations
Search Organizations	Write	Search the Apollo database for companies; consumes Apollo credits
Enrich Person	Write	Enrich a person’s profile by name, email, domain, or LinkedIn URL; consumes Apollo credits
Enrich Organization	Write	Enrich a company profile from its domain; consumes Apollo credits
Search Contacts	Read	Search contacts already saved to your Apollo account
Create Contact	Write	Create a new contact in your Apollo account
Update Contact	Write	Update an existing contact in your Apollo account

Search Apollo for heads of sales at SaaS companies in the US and list their names, titles, and companies.
Enrich this person in Apollo using their email address and summarize their role and company.