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Anthropic TypeScript SDK updated with middleware support

Anthropic has released version 0.101.0 of its TypeScript SDK. This update introduces support for middleware, allowing for more advanced request handling. Additionally, it includes several bug fixes, such as applying request timeouts only to the inner fetch and ensuring correct parsing of JSON numbers with scientific notation. AI

IMPACT Minor improvement for developers integrating with Anthropic's models.

RANK_REASON This is a software development kit update, not a core model release or significant industry event.

Read on Anthropic SDK (TypeScript) — Releases →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic TypeScript SDK updated with middleware support

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  1. Anthropic SDK (TypeScript) — Releases TIER_1 (SK) · stainless-app[bot] ·

    sdk: v0.101.0

    <h2>0.101.0 (2026-06-05)</h2> <p>Full Changelog: <a href="https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.100.1...sdk-v0.101.0">sdk-v0.100.1...sdk-v0.101.0</a></p> <h3>Features</h3> <ul> <li><strong>client:</strong> add support for middleware (<a href="https…