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Payments & IntegrationsPayments and Integrations

Getting paid, texting customers, sending email and syncing calendars: wired into your app and tested before it touches real money.

Fixed prices

All fixed-price offers

Something else? Describe your project

What we build

What we connect

Running in production

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.

  • Stripe
  • Stripe Connect
  • Twilio
  • SendGrid
  • IMAP/SMTP
  • Google Calendar API
  • Webhooks
  • Node.js
  • TypeScript

Error fixes

Common Stripe errors

Each page explains the error from the vendor’s own docs, with what to try first.

Questions

Before you start

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.

Not a fixed-price job?

Describe it and get a written quote

Send what you need built or fixed. You get a written scope, a fixed price and a timeline; we reply by email, usually within one business day.

Describe your project Instant quote

Prefer a call? Consultations are $100 per 15 minutes, paid upfront.