Claude Code sessions expose Anthropic API keys, terminal output, and environment secrets in real time. StreamBlur automatically blurs sensitive data the moment it appears on screen.
Claude Code surfaces credentials across your terminal and browser. Each of these can appear on screen without warning.
Your Anthropic API key appears in terminal output, config files, and environment exports during any Claude Code session.
Claude Code reads your project root, and .env files with database URLs, secret keys, and service tokens come along for the ride.
Personal access tokens and CI secrets stored alongside your code can surface in terminal output or diff views mid-stream.
Three steps. No configuration required. Works the moment you go live.
Add the extension in one click. No account required, no permissions beyond the active tab.
30 secondsClick the StreamBlur icon in your toolbar and activate Stream Mode. Detection begins immediately across all open tabs.
One clickRun Claude Code as you normally would. Any API key, token, or credential that appears on screen is blurred before your viewers can read it.
Continuous protectionThe StreamBlur MCP server lets Claude Code redact secrets from files and directories before they ever touch your screen.
npm install @streamblur/mcp
redact_text
Redacts secrets from any string before output.
redact_file
Reads a file and returns clean output. Non-destructive.
scan_directory Pro
Scans your whole project for exposed secrets.
How to Stream Claude Code Without Exposing Your Keys
Step-by-step guide to protecting Anthropic API keys, .env files, and terminal output during live sessions.
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