Releases
13 matching — model launches, API releases, product updates, financial events and news.
October 20251
Oct 16, 2025
Claude Agent Skills introducedSDK release
Anthropic introduced reusable Skills across Claude apps, Claude Code, and the API.
September 20251
Sep 29, 2025Claude Agent SDK releasedSDK release
Anthropic released an SDK exposing the agent-building infrastructure used by Claude Code.
May 20251
May 7, 2025Web search tool launched on the Anthropic APIAPI release
Anthropic released a web search tool for developers building Claude-powered applications.
March 20251
Mar 13, 2025Token-saving API updates releasedAPI update
Anthropic released API features designed to reduce token use and improve long-running agent workflows.
November 20241
Nov 25, 2024Model Context Protocol open-sourcedSDK release
Anthropic introduced and open-sourced MCP, its specification, SDKs, local Claude Desktop support, and reference servers.
October 20242
Oct 22, 2024Claude computer use public beta launchedAPI release
Anthropic launched computer use in public beta, allowing developers to direct Claude to operate graphical computer interfaces.
Oct 8, 2024Message Batches API launchedAPI release
Anthropic launched asynchronous batch processing for large volumes of Claude API requests.
September 20241
Sep 19, 2024Contextual Retrieval introducedAPI update
Anthropic introduced Contextual Retrieval, combining contextual embeddings and BM25 to improve retrieval-augmented generation.
August 20241
Aug 14, 2024Prompt caching launched on the Claude APIAPI update
Anthropic launched prompt caching to reduce latency and cost for repeated long-context prompts.
May 20241
May 30, 2024Claude tool use became generally availableAPI update
Anthropic made tool use generally available across the Claude API, Amazon Bedrock, and Google Vertex AI.
December 20231
Dec 19, 2023Anthropic expands API legal protectionsAPI update
Anthropic expanded commercial legal protections and improved API access and enterprise terms.
May 20231
May 11, 2023Claude context window expanded to 100K tokensAPI update
Anthropic expanded Claude's API context window from 9K to 100K tokens.
March 20231
Mar 14, 2023Claude API and developer console launchedAPI release
Anthropic made Claude available through an API and chat interface in its developer console.