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 1.0.81 it registers 124 connectors: 74 that can act as a source, 58 that can act as a destination, and 8 that can do both. Every one of them is marked stable.
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, PrestaShop, Gumroad, Lemon Squeezy, Paddle, Payhip, Sellfy, Sellix, FastSpring, Freemius, Funnelish, Lightfunnels, ThriveCart, SamCart, PayKickstart, Digistore24, Hotmart, CopeCart and GrooveSell. PrestaShop needs version 8.1 or newer.
Affiliate marketplaces and programs:
WarriorPlus, JVZoo and ClickBank. Referly works both ways for your own affiliate program and has its own article.
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.
Cold email:
Instantly works both ways. As a source it reports replies and leads marked interested. As a destination it can add a lead to a campaign or a lead list, mark a lead's interest, update a lead, or add somebody to your blocklist so people you already have a relationship with stop receiving cold outreach.
Event sources for your email apps:
Beehiiv Events, Campaign Monitor Events, EmailOctopus Events, FluentCRM Events, GetResponse Events, GoHighLevel Events, Klaviyo Events, Mailchimp Events, MailerLite Events, ResultsAiX Mailer Events and Systeme.io Events. They react to what happens in the app rather than only to new subscribers, and they have their own article.
Content and posting:
RSS Feed is a source that turns each new item in a feed into a story. Slack Post, Discord Post, Telegram Post, Facebook Page Post, Instagram Post, Bluesky and Mastodon are destinations that publish it. They have their own article.
Advertising:
Meta Conversions (CAPI) sends purchase and lead events to your Meta Pixel, server to server. It has its own article.
CRM and other:
SuiteDash, Shape, ManyChat, Viral Loops, Billetto, ResultsAiX Webinars, WP Conversion Tracker and Results AI Commerce.