CCR_AGENT_PROXY_STANDALONE_URL
A Claude Code environment variable, read out of the shipped bundle. It was in the build from v2.1.300 and was gone by v2.1.307.
On self-hosted runners, Claude Code can route all session traffic through a proxy you run, and refuses to start if it cannot
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.300.
In the changelogs
2Releases whose published page names CCR_AGENT_PROXY_STANDALONE_URL.
-
v2.1.307
Self-hosted runner options for proxies, checkout hook time limits and nested repositories
The self-hosted runner reads its proxy from --agent-proxy-url, limits checkout hook time and tightens how nested-repository diffs are shown
found in this entry's text
-
v2.1.300
Self-hosted runner sessions can send all traffic through your own proxy
On self-hosted runners, Claude Code can route all session traffic through a proxy you run, and refuses to start if it cannot
found in this entry's text
First cited
1The earliest release whose published evidence quoted CCR_AGENT_PROXY_STANDALONE_URL was v2.1.300, 14 Oct 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
2Build by build
9One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.