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1. Sign up + grab your master key

1

Create an account

Sign up at qlaud.ai/sign-up. $5 starter credit, no card required.
2

Mint a master (admin) key

Go to API keys, click Create, set the scope to Master (admin). This is the key you’ll use server-side to mint per-user keys.Copy the qlk_live_... it shows once — we only store the hash.
3

Set your env

export QLAUD_MASTER_KEY=qlk_live_...

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2. Send your first request

curl https://api.qlaud.ai/v1/messages \
  -H "x-api-key: $QLAUD_MASTER_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 100,
    "messages": [{"role":"user","content":"hello"}]
  }'

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3. Try a different model

Change model to one of:
slugauthor
claude-opus-4-7Anthropic
claude-sonnet-4-6Anthropic
gpt-5.4OpenAI
gpt-5.4-miniOpenAI
gemini-3-pro-previewGoogle
grok-4.20-0309-reasoningxAI
qwen-coder-plusAlibaba
kimi-k2.6Moonshot
deepseek-chat, deepseek-reasonerDeepSeek
MiniMax-M2MiniMax
Same body, same auth, same usage record.

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4. Use it from Claude Code

export ANTHROPIC_BASE_URL=https://api.qlaud.ai
export ANTHROPIC_API_KEY=$QLAUD_MASTER_KEY
claude --model claude-opus-4-7
Works with Cursor, Cline, Aider — anything that reads ANTHROPIC_BASE_URL / ANTHROPIC_API_KEY.

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5. Next: per-user billing

If you’re building a product on top of this, you don’t want every end-user hitting your master key. Read the per-user billing quickstart — that’s where qlaud actually shines.