Claude Code
Route Claude Code through base/mnt.ai with env vars, settings, or a bash function.
Claude Code speaks the Anthropic Messages protocol natively, and the router serves
/v1/messages wire-compatibly. Point it at base/mnt.ai and every
session — chat, tools, subagents — routes through your key.
Three equivalent ways to configure it. Pick one.
Option 1 — env vars (recommended)
Claude Code reads ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN from its environment:
export ANTHROPIC_BASE_URL=https://api.basemnt.ai
export ANTHROPIC_AUTH_TOKEN=sk-your-keySet once, applies to every new shell and every project.
ANTHROPIC_AUTH_TOKEN (sent as Authorization: Bearer)
over ANTHROPIC_API_KEY (sent as x-api-key). The router accepts both
headers; AUTH_TOKEN avoids conflicts if a real Anthropic key is also set.
Option 2 — Claude Code settings
Per-user or per-project, without touching your shell env. In
~/.claude/settings.json (or .claude/settings.json in a repo):
{
"env": {
"ANTHROPIC_BASE_URL": "https://api.basemnt.ai",
"ANTHROPIC_AUTH_TOKEN": "sk-your-key"
}
}Project-level settings are committed to the repo — use ~/.claude/settings.local.json or env
vars for keys so secrets never land in git.
Option 3 — bash function
Wrap the binary so only invocations through the function carry the config:
claude() {
ANTHROPIC_BASE_URL=https://api.basemnt.ai \
ANTHROPIC_AUTH_TOKEN="$SK_KEY" \
command claude "$@"
}command claude resolves the real binary — without it the function recurses into itself.
This pattern keeps your global env clean and makes it obvious which terminal is routed.
Model selection
Claude Code pins an Anthropic model name by default (claude-sonnet-4-5 or similar). Pass a
catalog model ID at launch or mid-session:
claude --model z-ai/glm-5.2Inside a session: /model deepseek/deepseek-v4-flash-0731.
Verify it worked
Launch claude and ask anything. A working setup shows base/mnt.ai requests in your usage
dashboard. A 401 means the key is wrong; a 404 on /v1/messages means the base URL lost
its host or gained a trailing /v1 — Claude Code appends the path itself.