How does a developer maintain conversation context across multiple API calls with Claude?
Select an answer to reveal the explanation.
Short Explanation and Infographic
Every new API call starts fresh. To maintain context, you append each exchange to the messages array and send the entire growing conversation with every call.
Full explanation below image
![Multi-turn conversation state management infographic. Turn 1: [user: hello] → response. Turn 2: messages array = [user: hello, assistant: hi, user: next question] → send full history. Token budget growing indicator. Code pattern showing history accumulation. Stateless API reminder. 1024x768.](/media/anthropic/ccao-f/CCAO-F-q073-infographic.webp)
Full Explanation
Because the Claude API is stateless, maintaining conversation context requires the developer to include the full conversation history in each API call's messages array. The pattern is: start with user message → get assistant response → append both to history → next user message → append → send full history as messages array → get next response. This approach gives developers full control over context management. Option A is wrong — no session_id parameter exists in the Anthropic API for stateful sessions. Option C is wrong — no server-side conversation storage exists. Option D is a web concept unrelated to API design.