Skip to main content
To access Sandbox APIs, you need an active subscription plan. You pay for subscriptions monthly or annually through payment instructions with a valid payment method.

​
What’s included

Every Sandbox subscription provides the following:
​
API access
included
Access to 200+ Sandbox APIs across KYC, GST, TDS, Income Tax, and Banking products.
​
API keys
included
Authentication credentials for test and production environments to integrate with your applications.
​
Monthly quota
included
A fixed number of API calls per month based on your plan. Quota resets at the start of each billing cycle.
View and compare all available plans on the Pricing page.
Learn how to purchase a plan through your Console.

​
Free trial

Sandbox offers a 14-day free trial with full platform access. Use this period to test APIs and build a proof of concept for your stakeholders.

​
Quota management

Quota refers to the number of API calls you can make each month without additional charges. Your quota allocation depends on your subscribed plan and resets monthly.
Unused quota does not carry forward to the next billing cycle.

​
How quota works

Not all API requests count toward your quota. Understanding what consumes quota helps you optimize usage and costs.
​
Successful requests (2xx)
consumed
You consume quota only for successful API responses with 2xx status codes.
​
Client errors (4xx)
not consumed
Requests that fail due to client errors (invalid parameters, authentication issues) do not consume quota.
​
Server errors (5xx)
not consumed
Requests that fail due to server errors do not consume quota or deduct wallet balance.

​
Wallet charges

Wallet charges are separate from quota consumption. Certain APIs incur per-call charges that deduct from your wallet balance. These charges apply only on successful API calls (2xx responses). View quota limits for all standard plans on the Pricing page.

​
Overdraft

Overdraft allows you to continue making API calls after exhausting your monthly quota, ensuring production workloads remain uninterrupted during traffic spikes or higher than expected usage.
Learn how to enable or disable overdraft in your Console.

​
How overdraft works

When you enable overdraft, you can make API calls beyond your monthly quota. Here’s what happens:
1

Quota exhausted

Once you reach 100% of your monthly quota, overdraft automatically activates if enabled.
2

Overdraft usage tracked

The system tracks all API calls beyond your quota as overdraft usage and charges them at the per-call rate defined in your subscription plan.
3

Invoice generated

At the end of your billing cycle, the system generates a separate overdraft invoice with all usage and charges.

​
Overdraft charges

You pay for overdraft usage on a pro-rata basis according to your plan’s per-call rate. The system adds these charges to your invoice at the end of each billing cycle.

​
Usage notifications

Sandbox sends email alerts to help you monitor quota consumption:
  • 50% quota consumed - Early warning to plan for potential overages
  • 90% quota consumed - Approaching quota limit, consider optimizing usage
  • 100% quota consumed - Quota exhausted, overdraft activated (if enabled)
You can also configure postback notifications to alert your team when your subscription enters overdraft mode.