The Connect Pack is a separate plugin with its own license key, entered on the Add-ons tab. Counted from the pack source at version 1.0.56 it registers 100 connectors: 58 that can act as a source, 47 that can act as a destination, and 5 that can do both.
WordPress native sources on this site:
WooCommerce, Easy Digital Downloads, Studiocart, SureCart, LearnDash, LifterLMS, Tutor LMS, MemberPress, Paid Memberships Pro, Wishlist Member, GiveWP and Amelia. These need no credentials, they hook straight into the plugin once it is active.
Payments, stores and carts:
Stripe, PayPal, Shopify, BigCommerce, Ecwid, Gumroad, Lemon Squeezy, Paddle, Payhip, Sellfy, Sellix, FastSpring, Freemius, Funnelish, Lightfunnels, ThriveCart, SamCart, PayKickstart, Digistore24, Hotmart, CopeCart and GrooveSell.
Affiliate marketplaces:
WarriorPlus, JVZoo and ClickBank.
Creator and membership platforms:
Ko-fi, Patreon, Buy Me a Coffee, Teachable, Thinkific, Kajabi, ProductDyno, Membership.io and Skool.
Calendars, forms and lead ads:
Calendly, Cal.com, Typeform, Jotform, Facebook Lead Ads and Instagram Lead Ads.
Chat destinations:
Slack, Discord and Telegram.
Help desks and support tools:
Intercom, Crisp, Help Scout, Freshdesk, Zendesk, Zoho Desk, Chatwoot, Customerly, HelpCrunch, Fluent Support, SupportCandy, Kustomer, HappyFox, LiveAgent, Re:amaze, Groove, Kayako, Dixa, Helpwise, BoldDesk, Desku, Comm100, Neeto Desk, Paldesk, Helpjuice, Froged, HelpSpace and Grawt.
Databases and spreadsheets:
Baserow, Smartsheet, Stackby, Grist, Retable and Zoho Sheet.
Physical mail destinations:
Thanks.io, Handwrytten, Thankster and Cardly. These need a source address to work.
CRM and other:
SuiteDash, Shape, ManyChat, Viral Loops, Billetto, WP Conversion Tracker and Results AI Commerce. Four of these are currently marked beta: Billetto, ManyChat, Membership.io and Shape.