Quick Start

From zero to your first Claude API response in under 5 minutes. No VPN, no credit card, no passport verification.

Prerequisites

Just an email address. No credit card, no documents, no VPN.

Step 1 — Register

Go to claudeapitech.com and register with your email. The process takes under 30 seconds. After registration you immediately receive $1.50 in test balance — enough to send your first requests.

Step 2 — Create an API Key

In your dashboard, go to API Keys → Create key. The key format is sk-cs2-*. Copy it and keep it secret — you won't be able to see the full key again.

Dashboard → API Keys

sk-cs2-xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Step 3 — Send Your First Request

Use cURL, Python, or any HTTP client. The only change from the official Anthropic API is the base URL:

cURL

curl https://api3.claudeapitech.com/v1/messages \
  -H "x-api-key: $CLAUDE_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 1024,
    "messages": [{"role": "user", "content": "Hello, Claude!"}]
  }'

Python

import anthropic

client = anthropic.Anthropic(
    api_key="sk-cs2-...",
    base_url="https://api3.claudeapitech.com"
)

message = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello, Claude!"}]
)
print(message.content[0].text)

Supported Tools

Cursor — AI code editor with native Claude support
Cline (VSCode extension) — agent-mode coding assistant
Continue — open-source IDE AI assistant
Claude in IDE (Windsurf) — built-in coding assistant
Python SDK — anthropic package
TypeScript SDK — @anthropic-ai/sdk
OpenAI SDK — use openai package with our OpenAI-compatible endpoint

← Models Authentication →