Introduction

We recently launched a promotional campaign for our website, currently offering both the inviter and qualified new users a resource package worth $20 for Claude Code API. However, we've noticed that many users haven't properly understood how to use this gift correctly, so we've written this article to provide detailed instructions about this promotion.

Referral Reward Distribution Mechanism

For Existing Platform Customers (Inviters)

First, logged-in users can click on these areas on the homepage to navigate to the "Referral Program" page:

https://www.ohmygpt.com/i

In the referral program, you can see your exclusive invitation link:

Example invitation link: https://www.ohmygpt.com/i/F81GTESR

Share this link and have your friends/colleagues register with a qualifying email address. After that, it's the invitee's turn to proceed.

For New Customers (Invitees)

After new customers access the invitation link, they will see the following page:

Please read these notes carefully and check them, then click the "I Understand" button to proceed to the login page:

Enter your email address and click continue. We will send you a login verification email.

Click the button or link in the email, then click the confirm button to log in:

After logging in, you will be directed to the /i invitation page. You may not see the gifted resource package initially, but it will appear after refreshing:

If after refreshing, you still see the invitation code input box, you may not qualify for the referral reward, or your invitation reward code may not have been automatically entered. In this case, you can try entering it manually:

How to Properly Check and Use Referral Rewards

Check Your Resource Package

You can check your current resource packages in the menu under "Billing"/"Resource Packages":

How to Start Using Resource Packages

Create Your API Key

Start Calling Claude Code Exclusive Messages API

Online debugging addresses:
https://ohmygpt-docs.apifox.cn/us/api-381322015
https://ohmygpt-docs.apifox.cn/us/api-381322080

This indicates a successful call:

Check Your Resource Package Deduction Records

We just completed two Claude Code API calls. These two requests fall within the resource package deduction scope of this promotion, so they will be automatically deducted with priority:

Since they were deducted, the amount for related records in the bill is 0:

Free Use of Claude Chat on the Web

Click the new conversation button in the upper left corner:

Recommended to select CS4.5 + Enable Deep Thinking:

Using in Claude Code

If you're a developer, please check this article on how to set up CC:

https://ohmygpt-docs.apifox.cn/us/doc-7511353

Frequently Asked Questions

Why am I encountering a 402 error?

Many users ask why they have a total account value of 100 or 20 dollars but cannot call the API.

When your balance is <= 0("Package Value" is NOT Account Balance), your API access will be blocked, regardless of whether you have valid resource packages.

Our system and rules are designed this way; we currently do not provide services to users who are in arrears, even if you still have valid resource packs under your account.

This commonly occurs when you've called paid services without topping up. The reason for this is that we need to prioritize providing better services for paying users, and we don't have enough resources and budget to serve users with outstanding debts.

In this situation, you need to restore your account balance to a positive number through top-up to restore service.

Why do I still have a negative balance after topping up?

Please carefully follow the documentation above to ensure you're calling the correct API and that the resource package has normal deduction records before using it extensively. If you're confident that you've read the documentation carefully and configured everything correctly, please contact us via email for feedback.

How to increase rate limits?

If you want to use Claude Code API in software with high rate requirements like Immersive Translate, the default 60 RPM for free users may not be enough. You can top up about 4USD to increase to 1000 RPM, or top up about 45USD to increase to 10000 RPM.

What is the actual price for continuing to use Claude Code service after my Claude Code resource package is depleted?

Currently, both our Claude Code exclusive API and CodeX exclusive API have a rate of 0.2, meaning the official API price *0.2 is the actual charge to your account balance. Charges from resource packages will not be multiplied by the 0.2 discount.

For example, if you make a Claude Opus 4.1 call worth

1, i f i t^{'} s d e d u c t e df ro ma reso u rce p a c ka g e, t h e p a c ka g e w i ll b e d e d u c t e d

1 worth of resources. If you don't have a valid resource package and are paying with your balance, the discount will be applied before charging, meaning $0.2 will be deducted from your account balance.

Instructions for Using Promotional Program Rewards

Introduction#

Referral Reward Distribution Mechanism#

For Existing Platform Customers (Inviters)#

For New Customers (Invitees)#

How to Properly Check and Use Referral Rewards#

Check Your Resource Package#

How to Start Using Resource Packages#

Create Your API Key#

Start Calling Claude Code Exclusive Messages API#

Check Your Resource Package Deduction Records#

Free Use of Claude Chat on the Web#

Using in Claude Code#

Frequently Asked Questions#

Why am I encountering a 402 error?#

Why do I still have a negative balance after topping up?#

How to increase rate limits?#

What is the actual price for continuing to use Claude Code service after my Claude Code resource package is depleted?#