APIs for Payments, Shipping and Logistics
Payment gateway, UPI, courier and logistics APIs connected to your store so checkout, rate calculation, waybill generation and tracking happen automatically instead of through separate manual steps. Built and run by GullySystem.
Why Checkout and Dispatch Break at the Seams Between Systems
Payment confirmation, courier rate and waybill generation, and delivery tracking often live in different accounts and dashboards that do not talk to each other. Someone manually copies an order into a courier panel, checks a gateway dashboard separately for payment status, and updates the customer by hand when a parcel is delayed. Each manual step is a place an order can be forgotten or mismatched.
What Gets Connected
Payment Gateway and UPI Integration
Card, UPI, netbanking and wallet payments are confirmed automatically against the order, with failed and pending payments handled by rule rather than a manual check.
Courier and Shipping Rate APIs
Delivery cost and estimated days are calculated at checkout from live courier rates by pincode and weight, instead of a flat guess.
Waybill and Pickup Automation
Waybills are generated and pickups requested automatically once an order is confirmed, without re-entering the order into a courier's own panel.
Tracking Written Back to the Order
Courier tracking updates flow back into the order status automatically, so the customer and your team see the same picture.
Custom API Connections
Where a partner does not offer a ready plugin, a direct API integration is built to your specific setup.
An Example: One Order, Three Couriers and Two Gateways
An electronics accessories brand ships pan-India using different couriers depending on pincode and package weight, and accepts both a card gateway and a separate UPI-only option because one offers a better rate on small transactions. Connecting both gateways and all three couriers to the order system means checkout automatically picks the right delivery estimate for the buyer's pincode, and dispatch staff generate the correct courier's waybill from inside the same order screen instead of switching between three separate courier logins.
What Shapes the Cost and Timeline of These Integrations
- How many payment and courier partners need to be connected at once
- Whether the gateway or courier offers a documented API or only a manual dashboard
- How delivery cost and estimate should be calculated, flat, weight-based or live-rate
- What should happen automatically versus what should still need a person to confirm
- Whether failed payments and undelivered parcels need automated retry or alert rules
Frequently asked questions
Do we need custom API work, or can a plugin handle our integrations?
A plugin is enough when your gateway and courier are both common and well-supported. Custom API work is worth it when you use more than one of each, or when a partner has no ready plugin for your platform.
What drives the cost of connecting several payment and courier accounts?
The number of partners and how well-documented each one's API is. A partner with a clear API costs far less to connect than one that requires working around gaps in their documentation.
What usually takes longest to complete?
Getting live credentials and test access from each payment or courier partner, since that approval sits with them, not with us.
Can this work with the payment and courier accounts we already have?
Yes, integrations are built against your own existing accounts, so your settlement and courier relationships are unchanged.
Who holds the payment and courier accounts once this is set up?
You do. Accounts stay in your business name, and our access is scoped and can be revoked.
What accounts and details do we need to provide before this starts?
Your current payment gateway and courier accounts, or a decision on which ones to open, and a list of the pincodes and package types you ship.
Tell us what you need.
Send a short brief and one of our engineers will come back to you — usually the same day.
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