claude-api
Anthropic Claude API patterns for Python and TypeScript. Covers Messages API, streaming, tool use, vision, extended thinking, batches, prompt caching, and Claude Agent SDK. Use when building applications with the Claude API or Anthropic SDKs.
npx skills add majiayu000/claude-skill-registry --skill claude-api-throokie-claude-code-skills --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Claude API Build applications with the Anthropic Claude API and SDKs. ## When to Activate - Building applications that call the Claude API - Code imports `anthropic` (Python) or `@anthropic-ai/sdk` (TypeScript) - User asks about Claude API patterns, tool use, streaming, or vision - Implementing agent workflows with Claude Agent SDK - Optimizing API costs, token usage, or latency ## Model Selection | Model | ID | Best For | |-------|-----|----------| | Opus 4.1 | `claude-opus-4-1` | Complex reasoning, architecture, research | | Sonnet 4 | `claude-sonnet-4-0` | Balanced coding, most development tasks | | Haiku 3.5 | `claude-3-5-haiku-latest` | Fast responses, high-volume, cost-sensitive | Default to Sonnet 4 unless the task requires deep reasoning (Opus) or speed/cost optimization (Haiku). For production, prefer pinned snapshot IDs over aliases. ## Python SDK ### Installation ```bash pip install anthropic ``` ### Basic Message ```python import anthropic client = anthropic.Anthropic() # reads ANTHROPIC_API_KEY from env message = client.messages.create( model="claude-sonnet-4-0", max_tokens=1024, messages=[ {"role": "user", "content": "Explain async/await in Python"} ] ) print(messag
- When to Activate
- Model Selection
- Python SDK
- Installation
- Basic Message
- Streaming
- System Prompt
- TypeScript SDK
- Tool Use
- Vision
- Extended Thinking
- Prompt Caching
- Batches API
- Claude Agent SDK
pip install anthropic npm install @anthropic-ai/sdk Required export ANTHROPIC_API_KEY="your-api-key-here" export ANTHROPIC_MODEL="claude-sonnet-4-0"
What does the claude-api skill do?
Anthropic Claude API patterns for Python and TypeScript. Covers Messages API, streaming, tool use, vision, extended thinking, batches, prompt caching, and Claude Agent SDK. Use when building applications with the Claude API or Anthropic SDKs.
How do I install it?
Run `npx skills add majiayu000/claude-skill-registry --skill claude-api-throokie-claude-code-skills --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From majiayu000/claude-skill-registry, a repository with 534 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.
