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Claude Agent SDK
S
TaglineAnthropic's SDK for building your own agents on Claude.
Categoryagents
PricingAPI usage + SDK is free
Best forDevelopers building custom agents for their own company/product.
Strengths
  • Production-grade agent primitives
  • Built on Claude (best reasoning)
  • Full control — build exactly what you need
Weaknesses
  • Developer-only
  • You build the UI
Kai's verdictS-tier for builders. The right primitives. What Kai is built on under the hood.
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