API Integration

What's included

Every integration project I deliver includes the following as standard.

  • A working connection between your system and the third-party service, tested end-to-end
  • Proper error handling, if the third-party service goes down, your system fails gracefully instead of breaking
  • Security built in, data transmitted correctly, credentials stored safely, no shortcuts
  • Full documentation of how the integration works and how to manage it
  • A ready-to-run test collection your team can use to verify the integration at any time
  • Deployed to your environment and confirmed working in production
  • 2 weeks post-launch support included

What I build

Types of integrations I take on most often.

  • Payment system connections: connect your website or software to a payment provider (Stripe, PayPal, JazzCash, EasyPaisa) so customers can pay online, including the full payment flow
  • Accounting software sync: connect your sales system and accounting software so invoices, payments, and customer records sync automatically with no manual re-entry
  • Shipping and logistics integrations: connect to a shipping provider so orders automatically generate shipments and tracking numbers are sent to customers
  • CRM and marketing tool connections: when a customer submits a form, they automatically appear in your CRM or email marketing list
  • FBR e-invoicing: connect your invoicing system to FBR's platform and handle the technical compliance requirements for Pakistan
  • Connecting two systems that don't talk to each other: ou have two pieces of software that require manual copying between them; I build the connection that makes it automatic

At a glance

Starting from $800
Typical timeline 1–6 weeks
Delivered as A working integration in your existing system
Documentation Full written docs + test collection
Post-launch support 2 weeks included
Discuss your project

Not sure if API Integration is the right fit? Get in touch and we can discuss your project.

Pricing

Prices below are fixed ranges based on scope. I send a written quote before starting — no surprises.

Basic
$800
Typical timeline: 1–2 weeks
A single, focused integration with a clearly defined scope. Suitable for connecting one system to one service, a payment gateway, an email platform, or a shipping provider.
  • One third-party connection
  • Full error handling
  • Documentation
  • Test collection
  • Deployed and confirmed working
Most common
Standard
$1,600
Typical timeline: 3–6 weeks
A full set of integrations for a product or platform, multiple connections, automatic updates when something changes, and testing across all the ways things can go wrong.
  • Multiple third-party connections
  • Automatic sync, when something changes in one system, the other finds out immediately
  • Access control, different users can access different parts of the system
  • Automated test coverage
  • Full documentation
Premium
From $3,000
Typical timeline: Quoted individually
A public API that lets your customers build on top of your product, or a complex integration layer connecting multiple enterprise systems. Quoted after a discovery call.
  • Public API with developer documentation
  • Enterprise system integrations
  • High-volume data processing
  • Ongoing retainer available

Does not include third-party service subscription costs (payment gateway fees, SMS, email delivery, etc.).

How a project runs

  1. 1

    Mapping the connection

    I understand what data needs to move between systems, in which direction, and what should trigger it. I document this clearly before writing a line of code — the most expensive integrations are built on misunderstood requirements.

  2. 2

    Building against test environments

    Every major service has a test mode. I build and test the entire integration in test mode before touching a live environment or real data.

  3. 3

    Edge case testing

    The easy path always works. I test what happens when a payment fails, when a service is temporarily unavailable, or when an unexpected response comes back. These are the scenarios that break integrations in production.

  4. 4

    Deployment

    I deploy to your production environment and run the full integration end-to-end with real credentials. Confirmed working before I hand over.

  5. 5

    Documentation and handoff

    You get written documentation explaining what the integration does, how to test it, and what to do if something goes wrong.

What I need from you

To get started without delays.

  • A description of what you want to integrate, which systems, what data should move between them, and what should trigger it
  • API documentation or sandbox access for the services you want to integrate (most major services provide this)
  • Access to your existing system if the integration is being added to something already built
  • Your credentials for any third-party services involved, or sandbox credentials to start