Agent SDK overview changedagent-sdk/overview
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Upstream edited this page at 21 Sep 2026 22:47 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 20 Oct 2026 18:37 UTC.
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3737Follow the [Quickstart](/docs/en/agent-sdk/quickstart) to install the SDK, set your API key, and build your first agent, one that finds and fixes bugs in existing code.
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39<Note>
40 Unless previously approved, Anthropic does not allow third party developers to offer claude.ai login or rate limits for their products, including agents built on the Claude Agent SDK. Use the API key authentication methods described in the [Quickstart](/docs/en/agent-sdk/quickstart) instead.
41</Note>
39> [!NOTE]
40>
41> Unless previously approved, Anthropic does not allow third party developers to offer claude.ai login or rate limits for their products, including agents built on the Claude Agent SDK. Use the API key authentication methods described in the [Quickstart](/docs/en/agent-sdk/quickstart) instead.
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4343## Changelog
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