Shopify · Stripe · HubSpot · Slack · Any REST API

API integrations that make Sheets the hub

Still exporting CSVs from Shopify, Stripe, or your CRM every morning? That data is stale before it hits the sheet — and Zapier bills grow with every task.

I build Apps Script bridges — webhooks, scheduled sync, cleaning, and dashboards — so your tools talk to each other inside Google Workspace. You own the code.

Fixed-scope quotes · From $500 · Within 24 hours · Secrets stay in your account

By the numbers

50+APIs connected for clients
From $500Fixed-scope projects
24hrQuote turnaround
100%You own the scripts

Security & Privacy

  • Data sovereignty

    I never see your data. The script runs entirely within your Google environment.

  • Zero-access policy

    Limited-scope permissions—I only see what is necessary to build the tool.

Trusted to automate workflows involving

Google Sheets
Gmail
Google Drive
OpenAI
Gemini
Vertex AI
Stripe
Slack

Disconnected tools cost more than a subscription

Orders, payments, and CRM stages live in separate silos. By the time someone pastes a CSV into Sheets, decisions are already late — and high-value people are doing $15/hour admin.

  • Manual export loops: Download → open → paste → pray the columns still match.
  • Stale dashboards: Leadership sees yesterday's numbers dressed as "live."
  • Zapier tax: Per-task pricing that scales with success, not with value.
  • Fragile glue: One API change or auth expiry and the pipeline goes silent.

If it has an API and you touch it twice a week, it should sync itself.

Not sure which sync to build first?

On a free 30-minute audit I map your apps, volume, and auth model — then recommend webhook vs schedule and a clear quote.

Book My Free Audit

What we connect to Google Sheets

Pick the platform draining your week. Each build includes auth, retries, logging, and a handover so ops can monitor it without me.

  1. 01 · ShopifyNo more CSV export mornings

    Orders, inventory & refunds → Sheets

    Pull orders and stock levels on a schedule or via webhooks. Clean SKUs, flag exceptions, and keep ops working from one live sheet.

    See how it works →
  2. 02 · StripeDaily reconciliation without copy-paste

    Payments & payouts reconciliation

    Sync charges, refunds, and payouts into a finance sheet with idempotent upserts so you never double-count a payment.

    See how it works →
  3. 03 · HubSpot / CRMOne pipeline view your team trusts

    Deals & contacts pipeline sync

    Mirror deals, owners, and stages into Sheets for forecasting, or push Sheet updates back when reps work offline.

    See how it works →
  4. 04 · SlackInstant ops signals, zero inbox noise

    Threshold alerts & approvals

    Post Slack messages when a sheet cell crosses a limit, a form arrives, or an order needs human review — without another SaaS.

    See how it works →
  5. 05 · OpenAI & custom APIsSheets becomes your integration hub

    AI enrichment + any REST API

    Classify leads, summarize tickets, or hit any REST endpoint with UrlFetchApp — secrets in Script Properties, retries and rate limits baked in.

    See how it works →

Also frequently connected:

ShopifyStripeHubSpotSlackTrelloOpenAI

Not listed? If it has an API or webhook, we can connect it.

What you get out of it

$0/mo Zapier

Replace task-metered Zaps with owned scripts

Real-time or hourly

Webhooks or time-driven sync — you choose

You own the code

Deployed in your Google account

Quote in 24 hrs

Fixed-scope quote after audit

Prefer no-code for a one-off? Fine. For recurring volume and custom logic, see Zapier alternative with Apps Script.

Secure bridges — not rented Zaps

  • Secrets in Script Properties: API keys never live in sheet cells or Git.
  • Quota-safe UrlFetch: Retries, backoff, and cursors so you do not burn daily limits.
  • Idempotent upserts: Webhooks do not duplicate rows when Stripe or Shopify retries.
  • Monitoring sheet: Last run, rows touched, and error alerts to your inbox or Slack.

From audit to live sync in four steps

  1. Free integration audit (30 min): Apps, volume, auth (OAuth vs key), webhook vs poll.
  2. Scope & quote (within 24 hours): Fixed-scope quote with written deliverables.
  3. Build & harden: Auth, sync logic, cleaning, edge cases, rate-limit handling.
  4. Deploy & handoff: Triggers live, docs + walkthrough, optional maintenance.

Why teams hire AppScriptExpert for integrations

I have shipped production UrlFetchApp integrations for e-commerce, finance, and sales teams — with attention to Google quotas, OAuth refresh, and ops-friendly logging. Need Sheets-side automation too? See Google Sheets automation.

Deliverables

What's included

Everything you need to run it on day one.

  • API discovery and auth setup (OAuth2, API keys in Script Properties)
  • UrlFetchApp integration with retry and rate-limit handling
  • Webhook receivers via doPost web apps
  • Data normalization and upsert logic into Sheets
  • Monitoring sheet and error notifications
  • Documentation and handover

Process

How it works

Five clear phases from first call to handoff.

  1. Step 01Free · 30 min

    Discovery call

    Map your workflow, data sources, and success metrics.

  2. Step 02No surprise fees

    Scope & quote

    Fixed-scope quote within 24 hours—projects generally start at $500.

  3. Step 03Your sandbox first

    Build & test

    Develop in your Google environment with edge-case testing.

  4. Step 04Full handoff

    Deploy & document

    Triggers, permissions, runbook, and handover walkthrough.

  5. Step 05Fixed packages

    Optional support

    Optional fixed-scope support packages as you evolve.

Most single-platform syncs ship in 1–2 weeks; multi-app hubs are scoped after the free audit.

By industry

Use cases by industry

Typical CRM and ERP builds mapped to real outcomes, not generic feature lists.

  • E-commerce

    Shopify orders → Sheets

    Outcome: Live inventory hub

  • Finance

    Stripe payouts → reporting sheet

    Outcome: Daily reconciliation

  • Sales

    HubSpot deals → Sheets CRM

    Outcome: Single pipeline view

  • Ops

    Slack alerts from sheet thresholds

    Outcome: Instant notifications

Comparison

Why Apps Script vs alternatives

Zapier and Make are great for quick connects. Custom Apps Script wins when logic, ownership, and Workspace depth matter.

Recommended

Google Apps Script

Cost model
$0 platform + build
Ownership
You own code
Best for
Workspace-native automation

Zapier

Cost model
$20–600+/mo
Ownership
Vendor logic
Best for
No-code quick wins

Make

Cost model
$9–299+/mo
Ownership
Vendor scenarios
Best for
Visual multi-app flows

Custom Apps Script build

Cost model
Fixed-scope project
Ownership
You own code
Best for
Custom complex logic

Compare in depth: Zapier alternative guide · Apps Script vs Zapier

Raj saved our ops team 15 hours a week. The Shopify–Sheets sync he built just runs.

Sarah K., Head of Operations, E-commerce brand

Simple pricing

Normally starts at $500

Fixed-scope api integration packages—quoted by outcome after discovery. Entry work often starts around $500; larger builds are scoped higher.

Get a fixed-scope quote

Frequently asked questions

Any app with an API. Common integrations include Stripe, Shopify, Slack, HubSpot, OpenAI (GPT-4), and various shipping or CRM platforms.

We can set it to sync in real-time (via webhooks), every hour, or once a day. You choose the frequency that fits your business needs.

Absolutely. We can trigger personalized Gmail responses, internal Slack alerts, or even SMS notifications based on specific changes in your spreadsheet.

All secrets live in Script Properties or Google Cloud Secret Manager, never in sheet cells or committed source code. OAuth refresh tokens are scoped to minimum required permissions.

Yes. Apps Script web apps expose doPost endpoints for Stripe, Shopify, Slack, and custom webhooks, writing validated payloads into Sheets with idempotency keys.

Shopify, Stripe, Slack, HubSpot, OpenAI, Twilio, and custom REST APIs. If the platform exposes an API or webhook, we can connect it to Google Sheets.

Ready to stop exporting CSVs by hand?

Book a free 30-minute audit. You leave with a sync plan, timeline, and quote — usually within 24 hours.

Fixed-scope · From $500 · You own the code