How to set up Anthropic
You can use Anthropic in two ways:- Cargo credits – Use Claude through Cargo’s managed integration
- Your own API key – Connect your Anthropic account
Connection details
| Field | Description |
|---|---|
| API Key | Your Anthropic API key |
Anthropic actions
Instruct
Send a prompt to a Claude model and receive a text response. Use cases- Content generation – Generate personalized emails and messages
- Classification – Categorize text into predefined categories
- Summarization – Summarize long documents or conversations
- Data extraction – Extract structured information from text
- Analysis – Analyze sentiment, intent, or other properties
- Reasoning – Complex multi-step problem solving
| Field | Description |
|---|---|
| Model | Select the Claude model to use |
| Prompt | The prompt to send to the model |
| System prompt | Optional system instructions |
| Maximum tokens | Limit output length |
| Temperature | Control randomness (0-1) |
| With web search | Enable web search capabilities |
Available models
Claude Opus 4.1
Claude Opus 4.1
The most powerful Claude model for complex and creative tasks with reasoning capabilities.Best for: Complex reasoning, advanced coding, creative tasksCredit cost: ~2 credits per 1,000 tokens
Claude Opus 4
Claude Opus 4
Premium model supporting images with advanced reasoning.Best for: Complex multi-modal tasks, detailed analysisCredit cost: ~2 credits per 1,000 tokens
Claude Sonnet 4.5
Claude Sonnet 4.5
Most intelligent model for building agents and coding.Best for: Agentic tasks, coding, complex reasoningCredit cost: ~0.2 credits per 1,000 tokens
Claude Sonnet 4
Claude Sonnet 4
Premium model with exceptional reasoning capabilities.Best for: Balanced performance, everyday complex tasksCredit cost: ~0.2 credits per 1,000 tokens
Claude Sonnet 3.7
Claude Sonnet 3.7
High-performance model supporting images.Best for: Multimodal tasks, detailed analysisCredit cost: ~0.2 credits per 1,000 tokens
Claude Haiku 3.5
Claude Haiku 3.5
Fast inference model optimized for speed.Best for: High-volume, low-latency tasksCredit cost: ~0.2 credits per 1,000 tokens
Recommended model: Claude Sonnet 4 offers excellent performance for most use cases with reasonable cost.
Advanced settings
System prompt
Set instructions that guide Claude’s behavior:- Define the model’s role or persona
- Set output format guidelines
- Provide context about your use case
- Establish constraints or rules
Temperature
Control the randomness of outputs:| Temperature | Behavior |
|---|---|
| 0 | Most deterministic |
| 0.3-0.5 | Balanced |
| 0.7-1 | More creative, varied |
Web search
Enable Claude to search the web for current information:- Real-time data lookups
- Current events research
- Fact verification

