API Development · Shopify Native

APIs that scale with your commerce stack

Custom Shopify apps, Admin & Storefront API integrations, webhooks, GraphQL services and middleware built for reliability, observability and clean ownership. We design APIs that power headless storefronts, internal tools, partner portals and agentic commerce — without the fragility of one-off scripts.

  • since 2020
  • vetted
  • enterprise
Tetralogicx ·Year Founded 2019 ·120+API projects shipped ·99.9%uptime target ·<200mstypical p95 latency ·Based in Lahore, PK
Where API ROI leaks

Where Shopify brands waste engineering time on APIs, and what we fix

Eight problems account for most of the API pain we see. Each one has a proven, production-grade fix we run as standard.

  • One-off scripts that breakFragile scripts and Zapier chains that fail when payloads change. We replace them with versioned, tested APIs and proper error contracts.
  • No rate-limit or retry strategySilent 429s and lost events under load. We design backoff, bulk operations and queue-based processing so peaks don’t take down your flows.
  • Undocumented endpointsOnly the original developer knows how it works. We ship OpenAPI/GraphQL schemas, ownership maps and runbooks so the next engineer can move fast.
  • Weak auth and data exposureOver-privileged tokens and public endpoints that shouldn’t be. We implement least-privilege scopes, signed webhooks and secure secrets handling.
  • Webhook chaosDuplicate events, out-of-order processing and no dead-letter path. We build idempotent handlers, ordering guarantees and clear failure recovery.
  • No observability“It stopped working” with no logs or metrics. We add structured logging, tracing, alerts and SLOs so issues are visible before customers are.
  • Tight coupling to Shopify UIBusiness logic trapped in Liquid or admin hacks. We extract it into clean APIs and Shopify Functions so themes and apps stay maintainable.
  • Vendor lock-in without exitBlack-box services with no export or ownership. We deliver code, credentials, schemas and deployment docs so you fully own the stack.
API capabilities

Sixteen ways we design and ship production APIs for Shopify

From Admin and Storefront APIs to custom apps, webhooks, GraphQL services and observability. We build APIs that product and ops teams can rely on.

Shopify Admin API

GraphQL and REST integrations for products, orders, customers, inventory, metafields and bulk operations — with rate-limit-aware design.

Storefront API & headless

Cart, checkout, product and customer APIs for Hydrogen, Next.js and custom storefronts with caching and edge-friendly patterns.

Custom Shopify apps

Embedded admin apps, public App Store apps, theme app extensions and Shopify Functions using Remix, Polaris and modern app architecture.

Webhooks & event systems

Reliable webhook receivers, idempotent handlers, ordering, retries and dead-letter queues so events are never lost or double-processed.

GraphQL services

Internal and partner-facing GraphQL APIs with clear schemas, auth, pagination and performance budgets for product and ops teams.

Shopify Functions

Discount, shipping, payment and cart transform Functions that run at the edge of checkout with typed inputs and deterministic logic.

Middleware & BFF layers

Backend-for-frontend services that aggregate Shopify and third-party APIs, enforce auth and keep storefronts thin and fast.

Auth, scopes & security

OAuth, session tokens, least-privilege scopes, signed webhooks, secrets management and secure multi-tenant patterns.

Bulk operations & jobs

Long-running product, order and customer syncs using Shopify bulk operations, queues and progress tracking without blocking the UI.

Partner & public APIs

Documented, versioned APIs for partners, marketplaces and internal tools with clear SLAs and change management.

Metafields & metaobjects

Structured data models exposed via Admin and Storefront APIs so custom product, content and config data stays queryable and typed.

Agentic & AI-ready APIs

Catalog, inventory and order endpoints structured for ChatGPT, Google AI Mode, Copilot and other agents with clear schemas and auth.

API migration & refactor

Move off legacy REST, undocumented scripts or brittle middleware onto versioned GraphQL or REST services without downtime.

Testing & contract design

Contract tests, OpenAPI/GraphQL schemas, staging environments and CI checks so API changes don’t break consumers.

Performance & caching

Edge caching, query cost control, bulk vs real-time trade-offs and p95 latency targets that hold under real traffic.

Observability & SLOs

Metrics, logs, traces, error budgets and alerting so APIs stay healthy and ownership is clear when they are not.

API development capabilities

Sixteen ways we build production-grade APIs for Shopify brands

From Admin and Storefront APIs to apps, webhooks, GraphQL services and observability. Reliable APIs that product and engineering teams can own.

Admin API integrations

GraphQL and REST for products, orders, customers, inventory and metafields with rate-limit-aware, bulk-ready design.

Storefront API & headless

Cart, product and customer APIs for Hydrogen, Next.js and custom storefronts with caching and edge patterns.

Custom Shopify apps

Embedded admin apps, App Store apps, theme extensions and Shopify Functions on Remix and Polaris.

Webhooks & event pipelines

Idempotent receivers, retries, ordering and dead-letter handling so events are never lost or double-applied.

GraphQL API design

Internal and partner GraphQL services with clear schemas, auth, pagination and performance budgets.

Shopify Functions

Discount, shipping, payment and cart transform Functions that run deterministically at checkout.

BFF & middleware layers

Backend-for-frontend services that aggregate Shopify and third-party APIs and keep clients thin.

Auth & security

OAuth, session tokens, least-privilege scopes, signed webhooks and secure secrets management.

Bulk operations & jobs

Long-running syncs with Shopify bulk ops, queues and progress tracking without blocking the UI.

Partner & public APIs

Versioned, documented APIs for partners and internal tools with clear SLAs and change process.

Metafields & metaobjects

Typed structured data models exposed via Admin and Storefront APIs for products, content and config.

Agentic commerce APIs

Catalog and order endpoints structured for ChatGPT, Google AI Mode, Copilot and similar agents.

API migration & refactor

Move off legacy REST and brittle scripts onto versioned services without downtime or data loss.

Contracts & testing

OpenAPI/GraphQL schemas, contract tests and CI so consumers stay compatible as APIs evolve.

Performance & caching

Query cost control, edge caching and p95 latency targets that hold under real traffic.

Observability & SLOs

Metrics, logs, traces and error budgets so APIs stay healthy and ownership is clear when they are not.

How an API development engagement runs

Every engagement follows the same four stages. You always know what is happening next and how success is measured at each milestone.

Stage 1

Discovery & contracts

We map consumers, data domains, volume and failure modes, then lock API contracts, auth model and SLOs before implementation starts.

Stage 2

Design & architecture

Schemas, versioning, rate limits, error model, observability and deployment strategy are defined so the API is operable from day one.

Stage 3

Build, test & ship

Implementation with contract tests, staging validation, gradual rollout and rollback plans. Documentation and ownership maps ship with the code.

Stage 4

Observe, iterate & support

SLOs, alerts and dashboards stay live. We refine based on real usage and offer retainers for ongoing ownership and evolution.

Tech stack

What we use for API development

Native Shopify APIs and app tooling first, modern TypeScript services and GraphQL when you need custom surfaces, and observability baked in from the first commit.

Shopify APIs

  • Admin API (GraphQL/REST)
  • Storefront API
  • Webhooks
  • Shopify Functions
  • Bulk Operations
  • App Bridge

App & service stack

  • Remix
  • Node
  • TypeScript
  • Polaris
  • Hydrogen
  • Next.js
  • GraphQL Yoga / Apollo

Infra & delivery

  • Shopify CLI
  • GitHub Actions
  • serverless / containers
  • queues
  • edge caching

Observability & quality

  • OpenAPI / GraphQL schemas
  • contract tests
  • structured logs
  • metrics
  • tracing
  • SLOs
Our work

Proof, not promises

Long-form case studies with the numbers behind them, next to the live stores and APIs we build. Filter to whichever kind of proof you came for.

All In One Commerce — Consolidated Shopify Commerce Suite
ShopifyShopify App

All In One Commerce — Consolidated Shopify Commerce Suite

All In One Commerce is a public Shopify app built to replace four separate app subscriptions with one. Merchants running...
AutoTrack — Branded Order Tracking App for Shopify
ShopifyShopify App

AutoTrack — Branded Order Tracking App for Shopify

A public Shopify app that owns the post-purchase window. It syncs orders in real time across 600+ carriers and renders...
B&G Guitars — Handmade Instrument Storefront with Custom Build Configurator
ShopifyMusic

B&G Guitars — Handmade Instrument Storefront with Custom Build Configurator

A Shopify storefront for a Tel Aviv luthier building electric, acoustic and bass guitars by hand. The catalogue is tiered...
ZA Dropshipping (ZAD) — South African Supplier Integration App for Shopify
ShopifyShopify App

ZA Dropshipping (ZAD) — South African Supplier Integration App for Shopify

ZA Dropshipping is a supplier-side Shopify app built for a South African fulfilment operator serving local merchants. South African dropshippers...
Clinikally — Dermatology-Led Skincare Commerce & Teleconsult Platform on Shopify
Shopify PlusHealth

Clinikally — Dermatology-Led Skincare Commerce & Teleconsult Platform on Shopify

Clinikally is India’s #1 teledermatology platform. Patients book doctor-led consultations and fill prescriptions alongside a catalogue of more than 10,000...
Centric — Men's Performance Activewear Storefront on Shopify
ShopifyApparel

Centric — Men's Performance Activewear Storefront on Shopify

A Shopify storefront for a men's activewear brand built around proprietary fabric platforms — Hiflex®, Copper-Dura™, Airstripe™, Stratonic™, Lufton™, Terraflex™,...
Checkout Bricks — Checkout Extensibility App for Shopify Plus
ShopifyShopify App

Checkout Bricks — Checkout Extensibility App for Shopify Plus

A public Shopify app that adds modular blocks to the Plus checkout — AI product recommendations, checkout upsells, custom fields...
Clear'd — Shopify Connector for the Cleard Social Commerce Platform
ShopifyShopify App

Clear'd — Shopify Connector for the Cleard Social Commerce Platform

A free connector app linking a Shopify store to an external Cleard account. The merchant verifies a Cleard API key,...
The British Hovercraft Company — Configurable Craft Catalogue & Parts Store on Shopify
ShopifySpeciality

The British Hovercraft Company — Configurable Craft Catalogue & Parts Store on Shopify

A Shopify store for the world's largest manufacturer of recreational and light-commercial hovercraft, exporting to 40+ countries. The build carries...
Dé Rococo — Global DTC Fashion Storefront on Shopify
ShopifyJewelry

Dé Rococo — Global DTC Fashion Storefront on Shopify

Dé Rococo is a Tel Aviv fashion label founded in 2017 by Romy Spector, known first for swimwear and now...
Dreamland Jewelry — High-SKU Sterling Silver Storefront on Shopify
ShopifyJewelry

Dreamland Jewelry — High-SKU Sterling Silver Storefront on Shopify

A Shopify storefront for a high-volume sterling silver jewelry retailer with roughly 45 collections across rings, chains, necklaces, pendants, earrings...
Duamadé — Recycled-Plastic Design Studio Storefront on Shopify
ShopifyTech

Duamadé — Recycled-Plastic Design Studio Storefront on Shopify

A Shopify storefront for a Spanish design studio making furniture and homeware from recycled plastic — bottle caps, packaging and...
Estimato — Delivery Date ETA Widget for Shopify (Built for Shopify)
ShopifyShopify App

Estimato — Delivery Date ETA Widget for Shopify (Built for Shopify)

A Built for Shopify certified app that adds an estimated-delivery-date widget to product pages. Merchants define processing and shipping times...
Fair Harbor — Sustainable Coastal Apparel Storefront on Shopify
ShopifyApparel

Fair Harbor — Sustainable Coastal Apparel Storefront on Shopify

A Shopify storefront for a Certified B Corp menswear and swim brand built from recycled plastic bottles, selling swim, tops,...
Flabelus — Global Omnichannel Footwear Storefront on Shopify
ShopifyFootwear

Flabelus — Global Omnichannel Footwear Storefront on Shopify

A Shopify storefront for a Spanish handmade footwear brand that has scaled from Mary Janes into a full lifestyle range...
Foberry — Made-to-Measure Menswear Storefront on Shopify
Shopify

Foberry — Made-to-Measure Menswear Storefront on Shopify

A Shopify storefront for a Pakistani made-to-measure menswear brand selling shirts, trousers and jackets from Rs. 4,700 to Rs. 7,450....
Foreclosure OPS (Real Estate Intelligence Platform)
ShopifyCustom Web App

Foreclosure OPS (Real Estate Intelligence Platform)

Foreclosure OPS is a specialized PropTech SaaS platform that automates the collection, enrichment, and analysis of county foreclosure filings. Built...
Ganzitos — Spanish Women's Footwear Storefront on Shopify
ShopifyApparel

Ganzitos — Spanish Women's Footwear Storefront on Shopify

A Shopify storefront for a Madrid women's footwear brand making leather shoes in Spain — ballerinas, Mary Janes, loafers and...
Harber London — Global Leather Goods Storefront on Shopify
ShopifyLeather

Harber London — Global Leather Goods Storefront on Shopify

A Shopify storefront for a London full-grain leather goods brand selling wallets, tech sleeves, bags and accessories worldwide. The catalogue's...
Headshop Drop — Restricted-Category Dropshipping App & Supplier Platform for Shopify
ShopifyShopify App

Headshop Drop — Restricted-Category Dropshipping App & Supplier Platform for Shopify

Headshop Drop is a supplier-side Shopify app built for One Wholesale, a Toronto-based distributor of smoking accessories and cannabis-adjacent products....
Heimat Atlantica — Artisan Fashion & Accessories Storefront on Shopify
ShopifyJewelry

Heimat Atlantica — Artisan Fashion & Accessories Storefront on Shopify

A Shopify storefront for a Galician artisan label selling handwoven bags, mother-of-pearl jewellery and ready-to-wear, priced €70–€540. The site is...
MIMS — Multi-Market Gummy Supplement Storefront on Shopify
ShopifyBeauty

MIMS — Multi-Market Gummy Supplement Storefront on Shopify

A Shopify storefront for a sugar-free gummy vitamin brand, split into Adults and Kids ranges across six formulas (immunity, sleep,...
Peanut Butter & Co — CPG Brand Storefront on Shopify
ShopifyF & B

Peanut Butter & Co — CPG Brand Storefront on Shopify

A Shopify storefront for a family-owned CPG brand best known for its ten peanut butter flavours, extended into powders, almond...
IBOSH – International Certification Board & Partner Portal
ShopifyCustom Web App

IBOSH – International Certification Board & Partner Portal

IBOSH is an enterprise-grade certification and accreditation platform engineered for the International Board of Occupational Safety and Health. Built to...
InnoGear — Multi-Category Consumer Electronics & Home Storefront on Shopify
ShopifyTech

InnoGear — Multi-Category Consumer Electronics & Home Storefront on Shopify

A Shopify storefront for InnoGear, a consumer brand best known on Amazon for aroma diffusers, solar spotlights and microphone arms...
Instafeed — Instagram Feed, Stories, Highlights & Reels for Shopify
ShopifyShopify App

Instafeed — Instagram Feed, Stories, Highlights & Reels for Shopify

A Shopify app that pulls a merchant's Instagram content into their storefront — posts, Stories, Highlights and Reels — and...
JB Equipment — Excavator Attachment Catalogue Storefront on Shopify
ShopifyB2B

JB Equipment — Excavator Attachment Catalogue Storefront on Shopify

A Shopify storefront for a Hertfordshire manufacturer and distributor of excavator, telehandler and skid-steer attachments — buckets, grabs, tree shears,...
JoSephine — Slow-Fashion Womenswear Storefront on Shopify
ShopifyApparel

JoSephine — Slow-Fashion Womenswear Storefront on Shopify

A Shopify storefront for a Madrid slow-fashion womenswear label. Each season is presented as an editorial chapter — the current...
Joon Haircare — DTC + Wholesale Haircare Storefront on Shopify
ShopifyBeauty

Joon Haircare — DTC + Wholesale Haircare Storefront on Shopify

A Shopify storefront for a US haircare brand built on Persian ingredient heritage — saffron, rose and Middle Eastern oils....
JSON-LD for SEO by DMB — Structured Data & Rich Results App for Shopify
ShopifyShopify App

JSON-LD for SEO by DMB — Structured Data & Rich Results App for Shopify

A Shopify app that generates valid JSON-LD structured data across a store so products qualify for Google Rich Results and...
Juice Press — Multi-Channel Organic Juice & Grocery Storefront on Shopify
ShopifyF & B

Juice Press — Multi-Channel Organic Juice & Grocery Storefront on Shopify

A Shopify storefront for a 25+ location New York juice and organic grocery chain, built to route customers across five...
Kakao Alimtalk Notifications — KakaoTalk Order Messaging App for Shopify
ShopifyShopify App

Kakao Alimtalk Notifications — KakaoTalk Order Messaging App for Shopify

A public Shopify app that delivers order, shipping, delivery and refund notifications to Korean customers over KakaoTalk rather than email...
Kensington Furniture — Multi-Brand Furniture & Mattress Retail Storefront on Shopify
ShopifyHome

Kensington Furniture — Multi-Brand Furniture & Mattress Retail Storefront on Shopify

A Shopify storefront for a 113-year-old South Jersey furniture and mattress retailer operating a two-acre showroom. The site mirrors the...
Kissmetrics — Shopify Analytics Integration App
ShopifyShopify App

Kissmetrics — Shopify Analytics Integration App

A public Shopify app connecting a merchant's store to Kissmetrics, the customer-analytics platform. It captures storefront and checkout events automatically...
Kpostcode — Korean Address & Postcode Lookup for Shopify Plus Checkout
ShopifyShopify App

Kpostcode — Korean Address & Postcode Lookup for Shopify Plus Checkout

A Shopify Plus checkout extension that brings Korea's standard address-entry pattern into Shopify. Rather than typing a street address, the...
Les emballages PickPack — Reusable Packaging Option for Shopify Checkout
ShopifyShopify App

Les emballages PickPack — Reusable Packaging Option for Shopify Checkout

A free Shopify app that lets shoppers choose PickPack reusable packaging instead of single-use boxes at checkout. The customer sees...
LogMyPrice — Price History & Strike-Price Compliance App for Shopify
ShopifyShopify App

LogMyPrice — Price History & Strike-Price Compliance App for Shopify

A Shopify app that records every price change automatically and renders a verifiable 12-month price history chart on the product...
LOOPS Beauty — Hydrogel Mask Storefront on Shopify
ShopifyBeauty

LOOPS Beauty — Hydrogel Mask Storefront on Shopify

Loops Beauty is a quiz-driven subscription beauty brand in the United States. Customers answer a personalised quiz that routes them...
Masderm — At-Home Radiofrequency Skincare Storefront on Shopify
ShopifyBeauty

Masderm — At-Home Radiofrequency Skincare Storefront on Shopify

A Shopify storefront for a Spanish skincare brand selling at-home radiofrequency devices and paired treatment creams — facial, body and...
Meller — Influencer-Led Eyewear Storefront on Shopify
ShopifyEyewear

Meller — Influencer-Led Eyewear Storefront on Shopify

A Shopify storefront for a Barcelona eyewear and accessories brand founded in 2014, selling sunglasses, blue-light glasses, chains and premium...
Miss Lamonique — Polish Health & Supplement Retailer for the UK Market
ShopifyCustom Web App

Miss Lamonique — Polish Health & Supplement Retailer for the UK Market

A bilingual (English/Polish) Shopify storefront importing Polish natural-health brands — Slavito, Skoczylas, Biowen, Visanto, Dobre Konopie — for the UK's...
Moonday — Global Lifestyle Apparel Storefront on Shopify
ShopifyApparel

Moonday — Global Lifestyle Apparel Storefront on Shopify

A Shopify storefront for a Spanish lifestyle apparel brand spanning clothing, swimwear, accessories, kids and home. It sells worldwide across...
Lead Apparel — B2B Corporate Merch Storefront + Launch Swag-Store Platform
ShopifyApparel

Lead Apparel — B2B Corporate Merch Storefront + Launch Swag-Store Platform

A Shopify storefront for a B2B corporate merchandise supplier, carrying 50+ licensed brands (Nike, The North Face, Patagonia, Peter Millar,...
Necklace Builder — Step-by-Step Custom Jewellery Configurator for Shopify
ShopifyCustom Web App

Necklace Builder — Step-by-Step Custom Jewellery Configurator for Shopify

A Shopify app that lets jewellery shoppers build a necklace in three steps — pendant, centre stone, chain — and...
NUNC Nutrition — Gummy Supplement DTC Storefront on Shopify
ShopifyDTC

NUNC Nutrition — Gummy Supplement DTC Storefront on Shopify

A Shopify storefront for a US gummy supplement brand covering roughly a dozen formulas — ACV, energy, beauty, sleep, biotin,...
Ölend — High-Variant Bag Storefront on Shopify
ShopifyApparel

Ölend — High-Variant Bag Storefront on Shopify

A Shopify storefront for a Spanish soft-bag brand selling backpacks, crossbodies, shoulder and small bags from €85 to €120. Its...
Ooh La Luxe — Multi-Brand Boutique Storefront on Shopify
ShopifyApparel

Ooh La Luxe — Multi-Brand Boutique Storefront on Shopify

A Shopify storefront for a boho-inspired California boutique stocking third-party labels (Free People, Daydreamer LA, Billini, Angie, Cotton Candy LA,...
OUNASS — Luxury Fashion E-Commerce Mobile App (Android)
AndroidMobile App

OUNASS — Luxury Fashion E-Commerce Mobile App (Android)

The Android app for Ounass, Al Tayer Group's digital-only luxury retailer and the Middle East's largest luxury e-commerce platform, launched...
Payeo — Subscriptions & Recurring Payments App for Israeli Shopify Brands
ShopifyShopify App

Payeo — Subscriptions & Recurring Payments App for Israeli Shopify Brands

A public Shopify subscriptions app built specifically for the Israeli market — the gap being that mainstream subscription apps don't...
Philippa 1970 — Spanish Luxury Womenswear Storefront on Shopify
ShopifyApparel

Philippa 1970 — Spanish Luxury Womenswear Storefront on Shopify

A bilingual Shopify storefront for a Spanish luxury womenswear label known for printed occasion dresses, worn by Queen Letizia, Tamara...
Phoenix40 – Radiation Safety Training Platform
ShopifyCustom Web App

Phoenix40 – Radiation Safety Training Platform

Phoenix40 is a specialized e-learning and compliance management platform delivering state-approved, 40-hour radiation safety certification for industrial radiographers. The web...
Poly & Bark — DTC Furniture Storefront on Shopify
Shopify

Poly & Bark — DTC Furniture Storefront on Shopify

A Shopify storefront for a DTC furniture brand selling sofas, sectionals, dining, bedroom, workspace, outdoor, lighting and decor. The build...
Pretty Sales Popup — FOMO & Social Proof App for Shopify
ShopifyShopify App

Pretty Sales Popup — FOMO & Social Proof App for Shopify

A public Shopify app bundling five conversion widgets into one install: sale notifications (recent purchase popups), exit-intent discount offers, promotion...
PUR Cold Pressed — Subscription-First Juice Cleanse Storefront on Shopify
ShopifyF & B

PUR Cold Pressed — Subscription-First Juice Cleanse Storefront on Shopify

A Shopify storefront for a US cold-pressed juice brand that ships perishable, HPP-protected juice nationwide in insulated coolers. The site...
Quilt Direct — Multi-Axis Retail & Tuition Storefront on Shopify
ShopifyHome

Quilt Direct — Multi-Axis Retail & Tuition Storefront on Shopify

A Shopify store for a UK premier stockist of Bernina machines, OESD stabilisers, AccuQuilt cutters and Mettler/Aurifil threads. The catalogue...
Replaceit — Bulk Find-and-Replace Editor for Shopify (delisted)
ShopifyShopify App

Replaceit — Bulk Find-and-Replace Editor for Shopify (delisted)

A bulk-editing app that ran find-and-replace across an entire Shopify catalogue in a single operation — titles, descriptions, SEO meta...
ShopifyCustom Web App

SDS — Certified Pre-Owned Camera Gear Marketplace with Automated Trade-In

A two-sided platform for used photo and video equipment: shoppers buy certified pre-owned camera bodies, lenses and accessories (Sony, Canon,...
SEO Image Optimizer by DMB — Compression, Alt-Text & Filename Automation for Shopify
ShopifyShopify App

SEO Image Optimizer by DMB — Compression, Alt-Text & Filename Automation for Shopify

A Shopify app that handles the three image jobs that affect page speed and search visibility: lossless compression, auto-generated keyword-rich...
Diaspora Co. — Single-Origin Spice DTC Storefront on Shopify
Shopify PlusF & B

Diaspora Co. — Single-Origin Spice DTC Storefront on Shopify

A Shopify storefront for a single-origin spice brand sourcing from 150+ family farms across India and Sri Lanka. Roughly 40...
SHOUT — Creator Marketplace & UGC Video Testimonial App for Shopify
ShopifyShopify App

SHOUT — Creator Marketplace & UGC Video Testimonial App for Shopify

A Shopify app that runs the entire UGC video pipeline inside the merchant admin — sourcing, briefing, fulfilment and display....
Social Bar — Floating Social Media Icon Bar for Shopify
ShopifyShopify App

Social Bar — Floating Social Media Icon Bar for Shopify

A Shopify app that adds a floating social media icon bar to any storefront. Merchants pick from 50+ platform icons...
Social Proof & FOMO Sales Pop — Real-Time Activity Notification App for Shopify
ShopifyShopify App

Social Proof & FOMO Sales Pop — Real-Time Activity Notification App for Shopify

A Shopify app that surfaces real-time store activity as storefront popups: recent orders, add-to-cart events, live visitor counts, abandoned carts,...
Sophie Ratner Jewelry — Fine Jewelry Storefront with Bridal & Bespoke Studio
ShopifyJewelry

Sophie Ratner Jewelry — Fine Jewelry Storefront with Bridal & Bespoke Studio

A Shopify storefront for a New York designer of handmade 14k gold fine jewelry. Alongside the standard catalogue (earrings, necklaces,...
SourcEquip — Multi-Vendor Industrial Equipment Marketplace on Shopify
ShopifyCustom Web App

SourcEquip — Multi-Vendor Industrial Equipment Marketplace on Shopify

A B2B marketplace on Shopify for material-handling and construction equipment — forklifts, pallet jacks, stackers, scissor and boom lifts, attachments,...
StoreCopilot — Semantic Data Layer Connecting Shopify to ChatGPT and Claude
ShopifyShopify App

StoreCopilot — Semantic Data Layer Connecting Shopify to ChatGPT and Claude

A Shopify app that lets merchants query their business in plain language through ChatGPT or Claude instead of reading dashboards....
Sunshine — Succulent & Gift Storefront on Shopify (Hebrew / RTL)
Shopify

Sunshine — Succulent & Gift Storefront on Shopify (Hebrew / RTL)

A Hebrew RTL Shopify storefront for what positions itself as Israel's largest succulent and gift centre. Plants run ₪23–₪200 alongside...
Support Hero — AI Helpdesk & Unified Inbox for Shopify
ShopifyShopify App

Support Hero — AI Helpdesk & Unified Inbox for Shopify

An AI helpdesk that consolidates Gmail and custom email accounts into one Shopify-native ticketing inbox. The AI is trained on...
Support Hero — Knowledge Management SaaS Marketing Site
ShopifyCustom Web App

Support Hero — Knowledge Management SaaS Marketing Site

A Squarespace marketing site for a knowledge-management SaaS product that runs separately on supporthero.io. The product provides a hosted help-centre...
Tailor Shirt Shop — Made-to-Measure Shirt Configurator for Shopify
ShopifyCustom Web App

Tailor Shirt Shop — Made-to-Measure Shirt Configurator for Shopify

A Shopify app that turns a shirt into a made-to-measure product. Customers work through a design panel — fabric, sleeves,...
TRAC91 — Delhivery Fulfilment App for Indian Shopify Merchants
ShopifyShopify App

TRAC91 — Delhivery Fulfilment App for Indian Shopify Merchants

A free Shopify app connecting Indian merchants to Delhivery courier services. Orders import automatically, ship in bulk, and generate carrier-specific...
Travelingos — Lead-Generation Site for a Mexico Travel Agency (WordPress)
WordPress

Travelingos — Lead-Generation Site for a Mexico Travel Agency (WordPress)

A WordPress lead-generation site for a travel agency specialising in Mexico's Caribbean coast. Seven destinations (Cancún, Riviera Maya, Tulum, Playa...
Tru Diamonds
ShopifyJewelry

Tru Diamonds

A Shopify storefront for a British simulated-diamond jewellery brand selling rings, earrings, neckwear and bracelets at £74–£300 against mined equivalents...
Ultimate Speed Booster Plus — Page Speed Optimisation App for Shopify
ShopifyShopify App

Ultimate Speed Booster Plus — Page Speed Optimisation App for Shopify

A public Shopify app that reduces perceived page load time using browser preloading — anticipating the shopper's next navigation and...
Dana's Bakery — Perishable Food DTC Storefront on Shopify
ShopifyShopify Plus

Dana's Bakery — Perishable Food DTC Storefront on Shopify

A Shopify storefront for a New York bakery known for American-flavoured French macarons, now selling Mookie™ boxes, stuffed cookies, Krisp...
Vanuat Coffee Dropshipper — Private-Label Coffee Dropshipping App & Shopify Storefront
ShopifyShopify App

Vanuat Coffee Dropshipper — Private-Label Coffee Dropshipping App & Shopify Storefront

Vanuat Coffee Dropshipper is a public Shopify app that turns a US coffee roaster and 3PL operation into a private-label...
Wefulfil Global — Shopify ↔ China 3PL Sourcing, Branding & Fulfilment Integration
ShopifyB2B

Wefulfil Global — Shopify ↔ China 3PL Sourcing, Branding & Fulfilment Integration

Wefulfil Global is the Shopify integration layer for a China-based third-party logistics operator serving DTC brands in Europe, Australia and...
White Space — Personalised Gift Storefront on Shopify (Hebrew / RTL)
Shopify

White Space — Personalised Gift Storefront on Shopify (Hebrew / RTL)

A Hebrew RTL Shopify storefront for an Israeli personalised-gift brand. Every product is made to order from customer-supplied input —...
Goom: Multi-region Plus build with Hebrew/English RTL
Shopify PlusDTC

Goom: Multi-region Plus build with Hebrew/English RTL

Goom is a fast-growing Israeli premium DTC brand selling internationally. It trades in Hebrew and English across three markets —...
Yooletta — Multi-Brand Stationery & Lifestyle Storefront on Shopify (Hebrew / RTL)
ShopifyDTC

Yooletta — Multi-Brand Stationery & Lifestyle Storefront on Shopify (Hebrew / RTL)

A Hebrew RTL Shopify storefront for Israel's "paradise for paper lovers" — a curated retailer of international stationery and lifestyle...
YUXUS — Multi-Market Streetwear Storefront on Shopify
ShopifyApparel

YUXUS — Multi-Market Streetwear Storefront on Shopify

A Shopify storefront for a Madrid streetwear label founded in 2018, selling 11 seasonal drop collections (FW26, Forher 2.0, Memories,...

Results from API development programmes we have shipped

120+API projects shippedcustom apps, Admin/Storefront integrations and middleware
99.9%Uptime targetwith monitoring, retries and clear ownership of failures
<200msTypical p95 latencyfor critical read paths under production traffic
100%Documented handoversschemas, credentials, runbooks and ownership on every project
Client reviews

What clients say about our API development work

Recorded and written, from brands we have shipped Shopify builds and retainers for.

★★★★★
"

They replaced fragile scripts with a proper GraphQL layer and webhook pipeline. Latency is stable and we finally have alerts when something fails.

SK
Sarah KennedyFounder · DTC Beauty, UK
Video
1:24
★★★★★

Clinikally

Teledermatology · India

★★★★★
"

Custom app and Admin API work was clean, documented and rate-limit safe. Our internal tools stopped timing out under peak order volume.

DM
David MorrisonHead of Ecommerce · Home Retailer, US
Video
2:05
★★★★★

Goom

Premium DTC · International

★★★★★
"

They owned the full API surface for our headless storefront. Contracts, auth and observability were production-ready from the first release.

JT
Jennifer TangCMO · Health & Wellness, US
★★★★★
"

Webhook reliability used to be a weekly fire drill. Now events are idempotent, monitored and we have a dead-letter path when something fails.

DL
Dana LewisFounder · Bakery, NYC
Video
1:38
★★★★★

Dana’s Bakery

F&B · New York

Engagement models

Transparent pricing. Pick the model that fits your API goals.

Fixed-scope API projects, ongoing retainers, or full-time dedicated teams. Whatever the engagement, you’ll see the price before you sign: no hourly creep, no surprise change orders.

Project

Fixed-scope API project

$8K – $55K
Fixed timeline · Milestone-billed
Best for: Custom apps, Admin/Storefront integrations, webhook systems, GraphQL services
  • Fixed SOW & written contracts
  • Schemas, tests & observability
  • Full documentation & ownership map
  • Easy off-ramp, no lock-in
Retainer

Monthly API partnership

$2.5K – $11K / mo
20–50 hrs/month · Month-to-month
Best for: Ongoing ownership, new endpoints, performance work and incident response
  • Dedicated API lead
  • SLO ownership & alerts
  • Priority fixes & new surfaces
  • Unused hours roll 50% forward
Dedicated team

Full-time API pod

$7K – $20K / mo
1–3 specialists · Embedded with your engineering team
Best for: Complex multi-API programmes, continuous platform work, high volume
  • Senior API specialists full-time
  • Direct Slack & weekly standups
  • Reports to your eng / product lead
  • Signed SLA & continuous ownership

Not sure which fits? Book a free 30-min strategy call →

Why brands stay

Six reasons brands stay with us for API development

Most of our API work is repeat business or referral. These are the reasons clients give when we ask why.

  • Production-first designContracts, auth, rate limits, retries and observability are designed up front — not bolted on after the first outage.
  • Shopify-native depthWe work daily with Admin API, Storefront API, Functions, webhooks and app architecture — not generic REST tutorials.
  • A dedicated lead on every projectOne accountable owner, clear weekly updates, no account-manager telephone game.
  • Schemas and docs that match realityOpenAPI/GraphQL schemas, ownership maps and runbooks so the next engineer can extend the API without archaeology.
  • Transparent, fixed-scope pricingWritten scope and a fixed number before work starts. No surprise line items or hourly creep.
  • You own the code & credentialsFull repository access, deployment docs and secrets ownership. We stay because the work is good, not because exit is hard.
API Development FAQ

Questions we hear before every API engagement

Honest answers, including the ones most agencies dodge.

How long does a typical API project take?

Focused integrations and webhook systems often land in 4–8 weeks. Custom apps or multi-surface GraphQL platforms usually run 8–16 weeks. Timeline is fixed in the SOW before work starts.

Do you build public App Store apps or only private/custom?

Both. We build private custom apps for a single merchant and public App Store apps with listing, review and multi-tenant architecture when that is the goal.

GraphQL or REST — which do you recommend?

We use GraphQL for Admin API and most new internal surfaces, REST when a consumer or legacy system requires it, and often a mix with a clear BFF or gateway in front.

What does a typical engagement cost?

Projects: $8K–$55K. Monthly retainers: $2.5K–$11K/mo. Dedicated team: $7K–$20K/mo. Every quote is fixed-fee and locked in the SOW.

How do you handle rate limits and high volume?

Rate-limit-aware clients, bulk operations, queues, backoff and caching are designed in from the start. We set realistic SLOs and test under load before go-live.

Do you support APIs after launch?

Yes. Retainers include SLO ownership, alerts, priority fixes and new endpoints as product needs evolve. Most clients keep a retainer after the initial project.

Ready to start?

Let’s build APIs that scale with your commerce stack.

Tell us about your current API landscape, consumers and pain points. We’ll respond within 24 hours with a written proposal and fixed-fee quote.

Book a 30-min Call
★★★★★ 4.8 on Clutch · 5.0 on GoodFirms