Anthropic's popular AI assistant Claude experienced a widespread service disruption on Wednesday, July 29, leaving thousands of users unable to access the chatbot or its developer tools. The outage, which affected Claude's web app, mobile interface, and API services, prompted an investigation from the company, who confirmed they had identified the issue and were working to restore normal service .

The Scope of the Disruption

The disruption began around 3:30 p.m. EDT, with error reports rapidly accumulating on Downdetector . According to the outage tracker, over 3,800 users across the United States reported problems, with additional complaints coming from Germany, France, India, and the United Kingdom .

Users attempting to access Claude were met with various error messages. One common message read: "Due to unexpected capacity constraints, Claude is unable to respond to your message. Please try again soon" . Others encountered a "529 Overloaded" error, indicating Claude's servers were unable to handle the current volume of requests . The issue also impacted Claude Code, Anthropic's popular coding assistant, which accounted for roughly half of all complaints .

Anthropic's Response and Recovery

Anthropic's official status page confirmed "elevated errors across all models" and flagged the event as a "major outage" . The company began investigating the issue at 19:49 UTC and identified a root cause within minutes .

"We're aware some users are experiencing errors across Claude.ai, Claude Code, and the Claude API," an Anthropic spokesperson said. "Our team is working to restore service and we're appreciative of everyone's understanding while we work through this" .

The situation began to stabilize after about an hour. By 17:30 EDT, Anthropic reported recovery across most models, though some users continued to experience intermittent errors . The incident highlighted the increasing dependence on AI platforms like Claude for everyday workflows .

A History of Service Instability

Wednesday's outage is not an isolated incident. Anthropic has logged several similar disruptions in recent months, with previous issues affecting models like Claude Opus 5 and Claude Haiku 4.5 . A notable global outage also occurred on June 23, impacting Claude.ai, Claude Code, and the API with similar "overloaded" errors .

The repeated service wobbles have raised concerns about the reliability of AI providers as their tools become integrated into critical business infrastructure . Experts warn that treating AI services as a single point of failure without backup plans poses a significant business continuity risk .

Anthropic has attributed previous outages to demand outpacing available compute capacity, driven by enterprise adoption and a surge in consumer signups .