Claude Code
Anthropic's terminal coding agent for delegating coding tasks with natural language.
At a glance
Notable moments
Went viral over the 2025–2026 winter holidays, Used by cybercriminals, China-based espionage …
See all 5Used by
Microsoft and Google
Connections
See all 2
Also on this page: Key facts · Links · Sources · Related pages
- An agentic command line tool that delegates coding tasks from the terminal using natural language prompts.
- It was released in February 2025 and made generally available in May 2025 alongside Claude 4.
- Anthropic reported a 5.5x increase in Claude Code revenue by July 2025 based on enterprise adoption.
- A web version and a sandboxing feature launched on October 20, 2025.
Why it matters
- For developers who want an AI agent that edits code and runs tasks from the terminal.
- It is one of Anthropic's main agentic tools and has been used across the industry.
Key facts
- Released
- 2025-021
- Generally available
- 2025-05, alongside Claude 41
- Publisher
- Anthropic1
- Web version and sandboxing
- 20 Oct 20251
- Claude Code Security
- launched 2026-02, reviews codebases for vulnerabilities1
Notable moments
The line under a date fills as it gets older: empty when new, full at 2 years.
-
Went viral over the 2025–2026 winter holidays1
Performance improvements tied to Claude Opus 4.5 drove many non-programmers to use it for vibe coding.
-
Used by cybercriminals1
Anthropic reported a group it designated "GTG-2002" used Claude Code in a data-extortion campaign against at least 17 organizations.
-
China-based espionage1
Anthropic said a China-based cybercrime group used Claude Code to automate 80–90% of its espionage cyberattacks against 30 organizations in September 2025.
-
OpenAI's API access revoked1
OpenAI employees had used Claude Code until Anthropic revoked their API access, calling it "a direct violation of our terms of service".
-
Source code leaked1
The leak of the CLI's source code revealed multiple upcoming features and models, including a memory consolidation feature called autoDream.
Used by
-
Microsoft and Google1
Both companies use Claude Code.
Connections
Published by
Links
Sources
Last checked against its sources today
Is something on this page wrong or out of date? Tell us
The line under a date fills as time passes: empty when new, then one equal share each for a day, a week, a month and a year. For episodes and other items it is full at 2 years; for "last checked", at a year. A striped line means the date is known only to the month or year.