What we connect
Stripe subscriptions and billing
Plans, trials, upgrades, proration, the customer portal and failed-payment handling, driven by webhooks so your database always matches Stripe.
Checkout, invoices and payment links
One-off payments, deposits and invoices with Stripe Checkout or Payment Links, with receipts and a clear record of who paid for what.
Marketplaces and payouts
Stripe Connect onboarding, fees and payouts for platforms that take payments on behalf of their users.
Texting and calls
Twilio SMS and voice: business numbers, two-way messaging and STOP opt-outs handled correctly.
Email in and out
Transactional email that lands in the inbox, plus reading replies back into your app.
Calendars and the rest of your tools
Google Calendar and Meet, CRMs and other APIs, with retries, logs and alerts when a sync fails.
What we run in production
Workspace369, the client-work platform App369 built and runs, takes payments and sends messages for its users. These integrations are in its codebase.
Stripe billing and Stripe Connect
Subscriptions for Workspace369 plans, and Connect so freelancers get paid directly on their own invoices and proposals.
Twilio texting and calling
Business numbers, two-way SMS with STOP opt-outs, and calls, inside a shared inbox.
Email sending and receiving
Outbound email plus IMAP sync of replies, with sender authentication checks on incoming mail.
Google Calendar and Meet
OAuth-connected calendars with Meet links created for booked events.
Stack: Stripe, Stripe Connect, Twilio, SendGrid, IMAP/SMTP, Google Calendar API, Webhooks, Node.js, TypeScript
Prefer a fixed price?
Fixed scope, fixed price, paid upfront. The work happens in writing; no call needed.
Frequently Asked Questions
Do you test payments before going live?
Yes. Everything is built and tested in Stripe test mode first, including webhooks, failed cards and refunds. Live mode is switched on only when you have checked it.
Can you fix an existing Stripe integration?
Yes. Common fixes are webhooks that fail or arrive out of order, subscriptions that drift out of sync with the database, and customers who are charged but never get access.
Do you need my live Stripe or Twilio keys?
Not to start. We work with test keys or a restricted key with only the permissions the job needs, and keys are stored in a secret manager, never in the code.
Which integrations can you build besides Stripe and Twilio?
Any service with a documented API: email providers, Google Workspace, CRMs, accounting tools and more. Each one gets retries, logging and a test before it ships.
Get a Personalized Assessment by Email
Submit your project details and we'll reply by email with a personalized assessment, usually within one business day.
Prefer a call? Consultations are $100 per 15 minutes, paid upfront.