All Case Studies
Trust built into every endpoint we ship
Every Dcrayon build rests on six things across our API development and integration services: versioned contracts, tested integrations, signed webhooks, and clear reporting.
One number, full API build
Spec plus tests We agree on one measurable outcome before the first endpoint ships, like cutting p95 response time or ending duplicate order webhooks. Your senior engineer owns that number and reports it every month.
One engineer, spec to ship
Same hands throughout The senior engineer who writes your OpenAPI spec is the same one who ships the endpoints. No junior handing you untested routes on your budget.
Shipping APIs since 2016
Endpoints in production We have shipped production APIs across payments, logistics, and CRM sync since 2016 for teams in India, the US, the UK, and the UAE. REST, GraphQL, idempotency keys, webhook retries, and OAuth 2.0 flows are routine work here, not a guess.
Walk away, no lock-in
Month to month Month-to-month once the first build cycle closes. We re-earn the account each cycle, and teams stay because the endpoints keep holding under real traffic.
APIs plus the wider stack
Add pieces as needed Your API work sits alongside our mobile and software builds. Teams add cloud setup, app work, or Jamstack development services as the system grows.
A monthly note you can read
Weekly call, monthly note A weekly call with your engineer and a monthly note tied to your number: uptime, error rate, and integration health your finance team can follow.
HOW WE WORK
How Dcrayon works with the brands we partner with
A short film on how we work: the people you deal with, how we report, and the results we hold ourselves to.
What is API Development?
API development is building the endpoints and integrations that let your apps, storefront, Jamstack front end, and back office exchange data. Three cards cover what it is, how our custom API development differs, and how we measure each project.
Step 1: What API Development covers
Definition API development is a standing part of our Mobile & Software practice, not a one-off script. We version each endpoint, hold it to an OpenAPI contract, and judge the work against a single reliability or latency target you set.
Step 2: Why a Dcrayon API build is different
Difference Since 2016 we have learned where integrations fail: silent webhook drops, token expiry, and pagination that times out. We answer with idempotent endpoints, signed webhook payloads, retry queues, and tested links to Razorpay, Stripe, and Zoho. Fewer surprises after go-live.
Step 3: How we measure the work
Measurement A first review sets the baseline. A weekly call and a monthly note track your number across the cycle. You can walk away when the cycle closes.
What goes into every API we ship
What you get on every Dcrayon API build
Each item maps to real work that makes your APIs faster, safer, and easier to call. Built and reviewed by the senior engineer on your account.
One number per project
Every build targets one number you name, like checkout latency or failed-payment rate.
The engineer codes to it; the monthly note reports it. No noise.
Clean REST and GraphQL
REST and GraphQL endpoints documented with OpenAPI and a Postman collection, so your app and partners call them without guesswork.
Tested integrations
We link your app to Razorpay, Stripe, and Zoho with OAuth 2.0 and signed webhooks, tested in sandbox and production so payments and data move correctly.
Free build review
A free review reads your current APIs against a 150-point checklist.
We map what is slow, what is unsafe, and what to fix first.
Weekly call, monthly note
A weekly call with your engineer and a plain monthly note tied to your number.
The reporting rhythm is written into the contract.
Walk away any cycle
Month-to-month once the first cycle closes.
The walk-away right sits in every contract. We re-earn the account each cycle.
Three tools behind every API build
Review, Plan, and Build: the opening audit, the 90-day plan, and the kit we use on every project.
Dcrayon API Review
A review against a 150-point checklist covering auth, versioning, and integration health. Free on every proposal call.
Dcrayon Build Plan (API sequencing)
The 90-day plan that orders endpoints, auth, and integrations behind one number you pick, so each step moves toward it.
DcrayonAI (build kit)
Our in-house kit that helps with the review, the scaffolding, and the testing of each new endpoint and integration.
How Dcrayon builds your APIs
Three steps we repeat so each cycle builds on the last.
Step 1: Review
A free Dcrayon review of your APIs, mapped to your number and where it leaks today.
Step 2: Plan
A written 90-day plan tied to one number you pick. Senior engineer on the account from the first sprint. Walk away any cycle.
Step 3: Compound
A weekly call and a plain monthly note. Work carries across cycles, so the endpoints built in cycle one support the next.
Get my free Dcrayon API review
A free read of your APIs and a 90-day plan to close the gaps and wire up your integrations.
+187%
Median revenue lift, year 1
Other Mobile & Software services
API Development sits inside the Mobile & Software category. Most clients add nearby services as the project grows.
Real client work, with the receipts
200%
Improvement in conversion performance
Proven Water Industries
Proven's growth on Amazon over the engagementDcrayon's work on Proven's Amazon account has run as a long-term growth programme rather...
Keratine Professional
What is in place on Keratine Professional's accountOn Amazon.in today, the brand's lead listings name the product type, the hair concern...
3,400%
Sales growth on Amazon India
GetSetNova
Sales up 3,400% on Amazon IndiaOver the engagement, GetSetNova's sales on Amazon India are up 3,400%, and the brand holds Amazon Best...
McCormick & Company
What changed on McCormick's front endThe front end now loads non-essential scripts after the main content, runs third-party tags through...
Roundglass
What changed for Roundglass's HR team, IT and new employeesAccount creation, group membership and licence assignment now follow the...
GRYT Health Labs
What GRYT shoppers can do on the storeShoppers can check the brand's licence and ownership details, compare single units with packs of...
Daddy of Tastes
What the Daddy of Tastes kitchens and riders work withCustomers can order from the full menu, pin their exact location, pay through...
Instacertify
What Instacertify's visitors could doVisitors could search for a certification from the first screen, see two clear next steps, and move...
Northern Tile Distributors
The storefront delivers a clean shopping experience on both desktop and mobile. Page load times improved significantly, the add-to-cart rate...
RAA Logistics
What RAA's customers and team have nowProspective customers can find the exact service they need, read what it covers, see who runs the...
What clients say about building APIs with Dcrayon
Senior dev on every account. Weekly calls. No offshore handoffs.
“Dcrayon provided website development and design services for our regulatory compliance and taxation company. On-time delivery was commendable. The team was supportive, provided timely deliverables, and communicated with us through virtual meetings throughout the engagement.”
“The process was smooth and professional. Dcrayon delivered digital marketing for our beauty brand and the work landed measurable outcomes. 35% traffic increase, 45% social growth, and first-page Google rankings, with responsive management throughout.”
“They ensure all campaigns go live as scheduled without delays. The e-commerce and digital marketing support raised engagement, website traffic, and sales, and the project oversight stayed organised and responsive across the engagement.”
Chief Executive Officer, Nirwana Jewellers Private Limited
Verified on Clutch“Dcrayon made everything right. We commissioned a website design + development build from scratch. it shipped on schedule with responsive adjustments through the review cycles and met the Google feature compatibility we needed.”
“Their attention to detail and compliance-focused approach helps build a stronger and more sustainable business. Initially they ask for documentation many sellers find difficult to provide. that is exactly what sets them apart. They now also offer USA seller account management. Loved the service. Bestseller in 3 category.”
“Dcrayon took our Amazon account from steady but flat to explosive growth: 180 percent more revenue, from Rs 1.82 crore to Rs 5.10 crore.”
Keratine Professional
Salon-grade Hair Care on Amazon
WHY DCRAYON
Why teams pick Dcrayon as their API development company
Stand out on reliability
Reliable APIs take years of hands-on work to get right. Hire an API developer team at Dcrayon and keep your own focus on running the business.
Flat monthly fees
Flat monthly pricing tied to build scope, not hours logged. Your quote is set by the free API review.
Engineers plus our kit
A senior engineer plus the DcrayonAI kit on every account. The kit handles scaffolding and tests; the engineer reviews and ships.
Clear, honest reports
A weekly call and a plain monthly note. One number shapes a report your finance team can read.
No long-term contracts
Month-to-month once the first cycle closes. The walk-away right sits in every contract.
One team for the whole build
API Development plus the mobile, cloud, and frontend work around it, one team. No handoffs between vendors.
Work across many markets
500+ projects shipped across India, the US, the UK, and the UAE. The patterns carry over; the auth and compliance details adapt per client.
The API review is free. The 90-day plan is yours to keep.
Across the 485+ brands we have served, brittle or unversioned APIs quietly cost brands between Rs 5L and Rs 28L over six months in failed orders and manual fixes. Book the call to size yours.
Free Dcrayon API review of your current endpoints
A written 90-day build plan tied to one number you pick
Walk-away right in every contract, no annual lock-in
Senior engineer on every account, and our spots are limited
Question & Answer
Frequently asked questions
Real questions teams ask Dcrayon about API development before signing on.
Most builds start showing steadier response times and fewer failed calls in 30 to 90 days, depending on your current setup, the scope, and your market. A clear payback usually lands by month 3.
Many shops bill by the hour and hand over undocumented code. Dcrayon builds to one reliability goal, ships an OpenAPI spec and a test suite, and stands behind our links to Razorpay, Stripe, and Zoho.
API development retainers usually run Rs 1.8L to Rs 5L per month for single-region work. Multi-region or heavier integration builds run above Rs 7L.
No. Month-to-month once the first cycle closes. The walk-away right sits in every contract.
API Development is one of several Dcrayon Mobile & Software services. Teams often start with an api development and integration layer, then add app or backend work as they grow. See the full Mobile & Software overview at /services/mobile-software.
Get my free Dcrayon API review
A free read of your APIs and the 90-day plan to close the gaps.
Ready to Grow Your Business?
Get a free consultation and custom marketing strategy from our expert team.
Bring the numbers you already have. We will read them against what we see across 500-plus campaigns and show you where the real opportunity sits.
If we are not the right fit for the work, we will tell you that too.