Anthropic

Announced · AI agents · Last reviewed 2026-10-20

AI developer behind the Claude models and Claude Agent SDK. Circle's 2025-10-28 testnet announcement lists AI-powered developer tools for Arc built on the Claude Agent SDK.

Website · X @AnthropicAI

Status

• First announced 2025-10-28

Evidence: Circle Arc public testnet announcement

Sources

1. Circle launches Arc public testnet (2025-10-28) (2026-10-20)
2. Anthropic website (2026-10-20)

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