How to Access Claude API from Anywhere — 2025 Guide
Step-by-step for China, Indonesia, Vietnam, India, Australia, USA — all the ways to get Claude API working, compared.
The Problem: Claude API Is Not Available Everywhere
Anthropic's Claude API is one of the most powerful AI tools available — but it's not officially supported in many countries, including China, and has friction in parts of Southeast Asia. Developers in these regions face:
- IP/region blocks
- Foreign credit card requirements
- Account verification issues
- Unreliable direct connections
Option 1: AI Token Relay (Recommended)
A token relay service gives you a unified API key that works with Claude, Codex, Gemini, and more. No need to register on each platform. No foreign credit card. No VPN.
BlackSea Token Relay — One Key, All Models
Supports Claude Sonnet 4.5, Opus 4.6, Codex, Gemini 2.5 Pro. OpenAI SDK compatible. 5-minute setup.
Option 2: Self-Hosted Proxy
Rent a VPS in a supported country (US/Singapore/Japan), run a reverse proxy. You handle: server maintenance, SSL, rate limiting, abuse prevention, monitoring. Best for teams with DevOps capacity.
Option 3: Direct Access (If Available)
If you're in a supported country (US, UK, EU, Japan, Australia, etc.), you can sign up directly at anthropic.com. You'll need a supported credit card and a verified phone number.
By Country: What Works Best
| Country | Direct Access | Best Option |
|---|---|---|
| 🇨🇳 China | Blocked | Token Relay |
| 🇮🇩 Indonesia | Limited | Token Relay |
| 🇻🇳 Vietnam | Blocked | Token Relay |
| 🇮🇳 India | Available | Direct or Relay |
| 🇦🇺 Australia | Available | Direct or Relay |
| 🇺🇸 USA | Available | Direct or Relay |
FAQ
Is using a relay service legal?
Token relay services operate in a regulatory gray area — not illegal, but against API providers' ToS. Many businesses (OpenRouter, APIYI, etc.) operate in this space successfully. The practical risk is account termination, not legal liability.
Does the relay affect model quality?
No. The relay only handles network routing. The model you're calling is the real Claude — same quality, same output.
What about latency?
Minimal. Our infrastructure is optimized for Asia-Pacific and North America. Typical overhead is under 200ms.