Integrations

Plays nicely with every tool in your DTC stack.

120+ first-party integrations. 40+ payment processors. Two-way sync everywhere. And a typed API for everything else.

⌘ K

Storefront & commerce

6 apps

Shopify

Two-way sync products, orders, customers.

Shopify Plus

Multi-store + checkout extensibility.

WooCommerce

Headless or classic WP storefronts.

BigCommerce

Native two-way sync.

Magento (Adobe Commerce)

Enterprise commerce sync.

Headless / custom

Storefront API + SDK.

Payments & processors

10 apps

Stripe

Default native processor — full feature parity.

Adyen

Global enterprise routing partner.

Braintree

PayPal-backed processing.

PayPal

Wallets as alternative payment methods.

Venmo

Mobile wallet for US shoppers.

Klarna

BNPL at checkout.

Afterpay

Pay-in-4 BNPL native.

Square

In-person + online for omnichannel brands.

Worldpay

High-risk + global coverage.

Checkout.com

Performance routing partner.

Email & SMS

6 apps

Mailchimp

Lists, segments, automations.

HubSpot

CRM + marketing automation sync.

Klaviyo

Customer + order events stream native.

Postscript

SMS lifecycle on every signal.

Attentive

Enterprise SMS sync.

Customer.io

Event-driven lifecycle.

Shipping & fulfillment

6 apps

Aftership

Tracking + WISMO automation.

ShipStation

Bulk-label + multi-carrier.

EasyPost

API-first shipping rates.

ShipBob

Outsourced fulfillment + 3PL.

Flexport

Freight + customs visibility.

Route

Shipping insurance + tracking.

Ads & attribution

6 apps

Meta (Facebook + Instagram)

CAPI server-side events.

TikTok Ads

Events API + conversion API.

Google Ads

Enhanced conversions native.

Google Analytics

Server-side GA4 events.

Northbeam

Multi-touch attribution.

Triple Whale

DTC-first attribution.

Customer service & support

6 apps

Zendesk

Native + bidirectional sync.

Intercom

Live chat + conversations.

Aircall

Voice + call recording on records.

Discord

Community ops for DTC brands.

Gorgias

Two-way sync conversations.

Front

Shared inbox sync.

Reviews & UGC

6 apps

Trustpilot

Verified review sync.

Okendo

Post-purchase review requests.

Yotpo

Reviews + loyalty + SMS.

Stamped

Reviews + Q&A.

Junip

Modern UGC capture.

Loox

Photo reviews on every order.

Productivity & dev

8 apps

Notion

Embed docs on records.

Linear

Link issues to deals.

GitHub

Webhooks + deploy signals.

GitLab

Same — for GitLab teams.

Sentry

Customer-specific error surfacing.

Datadog

Customer-level metrics on records.

PagerDuty

Account-aware paging.

Figma

Embed Figma frames on records.

Data, ops & finance

12 apps

Snowflake

Reverse ETL out of the box.

BigQuery

Native sync, schema-aware.

MongoDB

Document store for custom objects.

QuickBooks

Auto-syncs orders + refunds.

Xero

Same — for Xero teams.

Gmail

Send + receive from inside.

Google Drive

Attach Drive files to deals.

Dropbox

Attach files to records.

Zoom

Auto-log calls + AI transcripts.

Mixpanel

Event analytics on the customer.

Segment

Event pipe in + out.

Stripe Tax / Avalara

Auto-calc + remit at checkout.

Developer Platform

Don't see it? Build it.

A typed REST + GraphQL API. Inbound and outbound webhooks. Native SDKs for TypeScript, Python, Go, and Ruby. Storefront API for headless brands.

REST + GraphQL APIs
Typed SDKs (TS, Python, Go, Ruby)
Inbound + outbound webhooks
OAuth + scoped API keys
Headless storefront support
99.99% uptime SLA on Enterprise

Read API docs →

create-checkout.ts

// Create a checkout session via the typed SDK
import {`{ GrowthFlowLine }`} from '@gfl/sdk'

const gfl = new GrowthFlowLine({`{ apiKey: process.env.GFL_KEY }`})

const checkout = await gfl.checkout.create({`{
  brand:    'northshore',
  cart:     [{ sku: 'GREEN-30', qty: 1 }],
  upsells:  ['SLEEP-STK'],
  routing:  'auto',
}`})

// → tokenized, routed, ready to redirect.

Connect everything

Your stack — connected in one click.

All integrations included from day one. Talk to us about your stack.

Book a demo See pricing

20-min call Weekend migration Real operators