‘Claim Claude Code Free One-Week Trial: Limited Guest Pass Invitation Codes

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Author's Note: Anthropic has launched the Claude Code Guest Pass feature, allowing MAX users to share invitation codes for friends to try Claude Pro free for 7 days. This article shares 3 invitation codes for interested readers.

Want to experience Anthropic's latest AI coding assistant Claude Code? Here's a great opportunity—through Guest Pass, you can try the complete Claude Pro features for free for a week. This article details this promotion and shares my 3 invitation codes.

Core Value: No subscription required—experience 7 days of full Claude Pro and Claude Code features through invitation codes.

What is Claude Code Guest Pass

Claude Code Guest Pass is a referral feature launched by Anthropic in December 2025. Simply put, it allows MAX subscription users to invite friends to try Claude Pro service for free.

Claude Code Guest Pass Campaign Background

This campaign launched in mid-December 2025, coinciding with the release of Claude Opus 4.5. Anthropic allows MAX subscription users ($100/month or $200/month plans) to generate invitation links using the /passes command.

Each MAX user receives 3 invitation codes, which are not replenished once used. Friends who receive invitations can enjoy a 7-day Claude Pro trial, including:

• Latest models like Claude Opus 4.5, Claude Sonnet 4
• Claude Code command-line programming assistant
• Higher conversation quotas and priority
• Advanced features like Projects and Artifacts

Technical Note: Claude Code is Anthropic's official CLI tool that allows direct interaction with Claude in the terminal for code writing, debugging, refactoring, and other operations—currently one of the most powerful AI programming assistants available.

Claude Code Guest Pass Free Invitation Code Sharing

Sharing my invitation code here, 3 slots available, first come first served:

Invitation Link

https://claude.ai/referral/JHSFtvi3jA

Click the link above directly to claim, or copy the link to your browser.

Claude Code Guest Pass Claiming Instructions

Claiming Requirements:

• Valid credit card required (no charges during trial period)
• One claim per person
• Limited slots, while supplies last

Friendly Reminder: If you don't plan to renew, remember to cancel the subscription before the 7-day expiration to avoid automatic charges.

What Can Claude Code Do

After claiming the Guest Pass, the most worthwhile feature to experience is Claude Code. It's Anthropic's official command-line AI programming assistant.

Claude Code Core Capabilities

Claude Code can work directly in your development environment, understanding the context of your entire codebase:

• Code Writing: Generate complete functional code based on descriptions
• Bug Fixing: Analyze error messages, locate and fix issues
• Code Refactoring: Optimize code structure, improve maintainability
• Documentation Generation: Automatically generate code comments and API documentation
• Test Writing: Generate unit tests and integration tests

Claude Code Quick Start

Installation and usage are very simple:

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Launch in project directory
cd your-project
claude

# Start conversation
> Help me analyze the structure of this project
> Fix the bug in src/api.js
> Add unit tests for the UserService class

# Common commands
claude                    # Start interactive session
claude "your question"    # Single question
claude --continue         # Continue last conversation
claude --resume           # Resume previous session

# Project operations
claude --init            # Initialize project configuration
claude /passes           # View and share Guest Pass (MAX users)

# Practical tips
# You can directly reference files in conversation
> Look at what's wrong with @src/index.ts
> Help me refactor @components/Header.tsx

Usage Tip: Claude Code's biggest advantage is understanding complete code context. It's recommended to launch it in the project root directory so it can read the entire codebase, which makes answers more accurate.

Using Claude Code with API Services

Claude Code focuses on interactive programming. If you need to integrate Claude capabilities into your applications, it's recommended to use the API approach.

Why Choose API Calls

Minimal API Call Example

import openai

client = openai.OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://vip.apiyi.com/v1"
)

response = client.chat.completions.create(
    model="claude-sonnet-4-20250514",
    messages=[{"role": "user", "content": "Explain how Python decorators work"}]
)
print(response.choices[0].message.content)

import openai

client = openai.OpenAI(
    api_key="YOUR_API_KEY",
    base_url="https://vip.apiyi.com/v1"
)

# Supported Claude models
models = [
    "claude-sonnet-4-20250514",    # Claude Sonnet 4 - Balanced performance
    "claude-opus-4-20250514",       # Claude Opus 4 - Strongest reasoning
    "claude-3-5-sonnet-20241022",   # Claude 3.5 Sonnet - High cost-effectiveness
]

prompt = "Write a quicksort algorithm in Python"

for model in models:
    print(f"\n=== {model} ===")
    response = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": prompt}],
        max_tokens=500
    )
    print(response.choices[0].message.content[:200] + "...")

Platform Recommendation: Through APIyi apiyi.com, you can use a unified interface to call mainstream models like Claude, GPT, and Gemini. It supports free trial credits, making it ideal for developers to quickly validate and compare different model performances.

Frequently Asked Questions

Summary

Claude Code Guest Pass is a great opportunity to experience AI programming assistants. Key points:

1. Free for 7 Days: Claim through invitation link to experience full Claude Pro features
2. Limited Sharing: This article shares invitation code https://claude.ai/referral/JHSFtvi3jA, first come first served
3. Claude Code: The most worthwhile AI programming assistant to try, supporting code writing, debugging, and refactoring

If the invitation code has been fully redeemed, you can also use Claude API through APIYI apiyi.com, which also supports the latest Claude Opus 4.5 and Sonnet 4 models with more flexible pay-as-you-go pricing.

Author: Technical Team
Technical Discussion: Welcome to discuss Claude Code usage tips in the comments. For more AI development resources, visit APIYI apiyi.com technical community