Claude API
Claude API Pricing: Every Model Token Cost Explained
Claude API pricing per million tokens: Opus 4.8, Sonnet and Haiku rates, batch's 50% cut, prompt caching, and worked cost examples.
10 min read
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Claude API
Claude API
Claude API Error 500: A Developer's Fix Guide
Claude API error 500 from api.anthropic.com: what api_error and 529 mean, exponential backoff with jitter, retry caps and request_id logging.
11 min read
Claude API
How to Use the Claude API: A Getting-Started Guide
How to use Claude API from scratch: get an API key, learn the Messages request, and make your first call in curl and Python — with model and cost basics.
10 min read
Claude API
Claude API Stream Idle Timeout: How to Fix the Error
Claude API stream idle timeout means the SSE stream went quiet. Raise client timeouts, stop proxy buffering, keep-alive and retry with backoff.
11 min read
Claude API
Claude Prompt Caching: Cut API Costs and Latency
Claude prompt caching stores a stable prompt prefix so cached reads bill at ~10% of input price — how cache_control works, the TTLs, and the gotchas.
11 min read
Claude API
Claude Tool Use: Function Calling With the API
Claude tool use (function calling) lets Claude call tools you define via a JSON schema. The tool_use and tool_result loop, a worked example, and how it ties to MCP.
10 min read