Frameworks

Anthropic Claude Agent SDK

Anthropic's SDK for building agents on Claude — the same harness that powers Claude Code.

As of 1 November 2026, Anthropic Claude Agent SDK ranks 9th of 34 in Frameworks on the Agent Reality Index — scored 57.0 of 100, led by market demand.

#957.0Index / 100

Score breakdown

Market demand58
Developer adoption49
Real usage88
Momentum42
Production readiness24
Community36

Why this rank: the index weights market demand most heavily — how much Anthropic Claude Agent SDK is actually searched for and asked about inside AI tools.

Real-world demand

9.9kGoogle searches / mo
160AI / LLM searches / mo
10kGitHub stars
78590kPackage downloads / mo

Demand measured via Brand search volume · confidence: low — name collides with common terms, so demand is a conservative estimate.

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Common questions

Anthropic Claude Agent SDK — frequently asked questions

What is Anthropic Claude Agent SDK?

Anthropic's SDK for building agents on Claude — the same harness that powers Claude Code. It is tracked in the Frameworks category of the Agent Reality Index.

What is Anthropic Claude Agent SDK's Agent Reality Index ranking?

As of 1 November 2026, Anthropic Claude Agent SDK ranks 9th of 34 in Frameworks, with an overall Agent Reality Index score of 57.0 of 100.

How is Anthropic Claude Agent SDK scored?

The index blends six real-world signals — market demand (weighted most heavily), developer adoption, real usage, momentum, production-readiness, and community — into a 0–100 score, rather than relying on GitHub stars or vendor opinion.

Is Anthropic Claude Agent SDK open source?

Anthropic Claude Agent SDK is open source; its code is publicly available on GitHub.

How popular is Anthropic Claude Agent SDK?

Measured 1 November 2026, Anthropic Claude Agent SDK draws about 9.9k Google searches a month, around 160 AI and LLM searches, roughly 10k GitHub stars, about 78590k package downloads a month. Demand confidence is rated low.

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