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Grok 3 is an artificial intelligence model provided by xAI. Its API allows developers to call for tasks such as text generation, data analysis, etc. xAI provides new users with a free API call limit of $150 per month, which is enough to support a variety of daily development needs. The following are the detailed application steps. Mainland users please set up an agent environment in advance. It is recommended to use a US agent to apply.
Access portal: Open the browser and access the xAI console . If the domestic network cannot load, it is recommended to use a VPN to connect to the US node to ensure that the page is displayed normally.
Registration method: Support two methods:
Log in with X account: Click "Sign in with X", enter the X account and password, and complete quickly.
Email registration: Select "Sign up with Email", enter common email addresses (such as Gmail, Outlook mailbox) and set a password to complete the registration (see Gmail mailbox as an example).
Note: CAPTCHA verification may be encountered during the registration process. It is recommended to use a desktop browser to avoid mobile restrictions.
The account registration process is very simple. After registration is completed, the xAI console homepage will be displayed directly.
Enter the Billing page: After logging in, navigate to "Billing" in the menu on the left and select the "Payment" option.
Fill in the information: Billing address and credit card information are required. The address can be directly used in the domestic address, such as "No. XX Road, XX, Chaoyang District, Beijing", and the zip code can be filled in "100,000". Credit cards need to support Visa or Mastercards for international payments, common for dual-standard cards such as China Merchants Bank and China Construction Bank.
Recharge operation: Choose to recharge USD 5, which is the minimum recharge amount. The account will be activated immediately after payment. During the payment process, the SMS verification code sent by the bank may be required and operated according to the bank's requirements.
Potential issue: If the payment page shows "Region Not Supported", try refreshing the page or replacing the VPN node. Some users report successful payments by clearing the browser cache.
The billing address can be filled in according to your actual address. If you encounter problems when adding payment methods: the virtual credit card is a redpay that you applied for from the Internet before. If you try to add it several times and cannot be displayed in the background, you can switch the agent or use other credit cards. Until the payment method appears in the background, that is, the binding is successful, you can recharge.
Note: You may encounter problems that cannot be added when adding payment methods. Please try changing the card or switching the proxy, refreshing and checking whether it is successful.
During the process of adding a credit card, you will receive a verification email from link. This is a normal card binding verification, click Verification. ( link official payment platform built by Stripe)
Click "Purchase credits" next to the payment method (purchase points)
Enter: "5" in the pop-up window and click "Proceed"
Confirm purchase
After the recharge is successful, you will see that the balance in the figure below shows USD 5, and the share data button has become active. At this point we need to click the "Share Data" button to get a free $150 per month.
Confirm sharing: After clicking on the shared data above, a confirmation box will appear, agree to the sharing API usage data (see the xAI data sharing instructions for details). After confirmation, the system will immediately allocate a monthly limit of US$150.
Credit management: The credit limit will be automatically renewed on the 1st of each month, and the unused part will not accumulate. Users can view the current balance on the "Credits" page.
After refreshing the page, the free amount of USD 150 is successfully received:
Enter the API Keys page: Navigate to "API Keys" in the menu on the left and click "Create new key".
Naming and Generation: Name the API Key (such as "Grok3"). After clicking Generation, a string of keys will be displayed. Copy and store it safely. It is recommended to save it to a local file (such as "xAI_API_Key.txt"), because the key is only displayed once and it needs to be regenerated if it is lost.
Preparation for use: This key will be used for subsequent API calls and is the only credential for accessing Grok 3.
The following solutions are provided for possible obstacles for mainland users:
Network problems: Direct connections to mainland users may cause page loading failure or API call timeout. It is recommended to use a reliable VPN and give priority to US nodes.
Credit card compatibility: Only Visa and Mastercard are supported. It is recommended to confirm in advance whether the bank card supports international payments. Some banks may need to activate foreign currency functions.
Data Sharing Concerns: According to the xAI data sharing instructions , shared data is limited to API call content and does not involve personal privacy, but users can carefully choose whether to upload sensitive information according to their needs.
Credit usage recommendation: The $150 credit limit is suitable for medium-sized tasks, but high-intensity usage (such as batch generation) may be consumed quickly. It is recommended to check the balance of the "Credits" page regularly.
A free $150 can support a variety of development scenarios, such as:
Text generation: Generate articles, advertising copy, etc., and the cost per call is as low as a few cents.
Code optimization: Use Grok 3 to debug code to save development time.
Data analysis: Process complex queries, the context length is up to 128k, suitable for long document processing.
Taking ordinary use as an example, 1000 monthly Q&As may only consume $10-20, and the remaining amount can be used for more complex tasks. Compared with other AI APIs on the market (such as OpenAI's GPT-4), this amount is extremely cost-effective, especially for startup teams or individual developers.
