A specialized technical skill for implementing high-performance Anthropic API integrations, including tool use, streaming, and prompt caching.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install claude-code-claude-api-builder
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install claude-code-claude-api-builder using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Claude API Builder?
Claude API Builder is a dedicated module within the Openclaw Skills library designed to streamline the development of applications powered by Anthropic's model family. It provides a structured framework for developers to implement complex API patterns—such as stateful agent workflows, file uploads, and Claude batch jobs—while maintaining strict adherence to SDK-native best practices.
This skill acts as a bridge between high-level agent logic and the specific technical requirements of the Anthropic SDK. By leveraging this skill, developers can ensure their AI agents use the most efficient communication patterns, whether they are building simple message interfaces or sophisticated, tool-enabled autonomous systems.
Claude API Builder Use Cases
- Implementing real-time streaming interfaces for responsive UI/UX.
- Configuring complex tool use (function calling) for autonomous agent actions.
- Setting up high-volume data processing using the Claude Batch API.
- Optimizing API costs and performance through prompt caching implementation.
- Building robust error handling and retry logic for enterprise-grade Anthropic integrations.
How Claude API Builder Works
- SDK Detection: The skill identifies the project language and active Anthropic SDK surface (e.g., Python
anthropicor TypeScript@anthropic-ai/sdk). - Pattern Selection: Based on the user intent, it selects the most efficient architecture, ranging from simple message completion to stateful streaming.
- Reference Validation: It prioritizes official documentation and native examples over legacy patterns to ensure compatibility with the latest model versions.
- Implementation: It generates explicit code for model selection, parameter tuning, and error handling.
- Documentation Linkage: Provides pointers to live documentation for rapidly evolving API features like prompt caching limits or new model identifiers.
Claude API Builder Setup
To integrate this skill into your agentic workflow, ensure you have the relevant SDKs installed via the Openclaw Skills environment:
# For Node.js environments
npm install @anthropic-ai/sdk
# For Python environments
pip install anthropic
Configure your API credentials as environment variables:
export ANTHROPIC_API_KEY='your-api-key-here'
Claude API Builder Data Schema & Taxonomy
The Claude API Builder organizes implementation logic according to the following taxonomy:
| Component | Description | Metadata Captured |
|---|---|---|
| Pattern Type | The architectural style used | streaming, batch, tools, simple |
| SDK Surface | The target language library | typescript, python |
| Model ID | Specific Claude model version | claude-3-5-sonnet, claude-3-opus |
| Workflow State | Whether the logic is stateless or stateful | one-shot, agentic-loop |
Claude API Builder Advanced Features
- Prompt Caching Integration: Automatically identifies opportunities to reduce latency and costs using Anthropic's caching headers.
- Agent SDK Compatibility: Specialized support for the Anthropic Agent SDK to manage complex multi-turn conversations.
- Dynamic Model Switching: Logic to fallback between different Claude models based on error codes or performance requirements.
- Native File Support: Streamlined handling of PDF and image uploads within the Claude API context.
SKILL.md
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