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GoModel can sit in front of Claude Code so every request goes through your own gateway first. Flow: Claude Code -> GoModel -> Anthropic

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Before you start

  • Install Claude Code on your machine.
  • Choose a GoModel master key, for example change-me.
  • Make sure GoModel has an Anthropic upstream credential.
Claude Code can be routed through GoModel whether or not you personally use a Claude Code subscription. For gateway mode, Claude Code talks to GoModel with ANTHROPIC_BASE_URL and ANTHROPIC_AUTH_TOKEN. GoModel still needs its own ANTHROPIC_API_KEY to reach Anthropic upstream.

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How to get ANTHROPIC_API_KEY

  1. Open the Claude Console and sign in to your API account.
  2. Go to account settings in Console, then create an API key.
  3. Copy the key once and set it for GoModel as ANTHROPIC_API_KEY.
Anthropic’s API docs state that API keys are created in Console account settings.
Claude paid plans (Pro, Max, Team, Enterprise) and Claude API Console billing are separate. API key usage is billed as API usage.

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1. Run GoModel

Start GoModel with a master key and an Anthropic provider key: 
docker run --rm -p 8080:8080 \
  -e GOMODEL_MASTER_KEY="change-me" \
  -e ANTHROPIC_API_KEY="sk-ant-..." \
  enterpilot/gomodel

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2. Confirm Anthropic passthrough with curl

Check that the Anthropic passthrough models endpoint responds: 
curl -s http://localhost:8080/p/anthropic/v1/models \
  -H "Authorization: Bearer change-me"
Then send one small test message: 
curl -s http://localhost:8080/p/anthropic/v1/messages \
  -H "Authorization: Bearer change-me" \
  -H "Content-Type: application/json" \
  -H "anthropic-version: 2023-06-01" \
  -d '{
    "model": "claude-3-haiku-20240307",
    "max_tokens": 16,
    "messages": [
      {
        "role": "user",
        "content": "Reply with exactly ok"
      }
    ]
  }'
If the gateway is wired correctly, the response will contain ok.

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3. Configure Claude Code to use GoModel

Point Claude Code at GoModel’s Anthropic passthrough: 
export ANTHROPIC_BASE_URL=http://localhost:8080/p/anthropic
export ANTHROPIC_AUTH_TOKEN=change-me
export CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1
Short Claude Code doc summary: for gateway mode, set ANTHROPIC_BASE_URL to your gateway URL and ANTHROPIC_AUTH_TOKEN to your gateway token, then run Claude Code normally. See the official guide: Claude Code LLM gateway docs. If GoModel is not running on your local machine, replace localhost:8080 with the correct host and port.

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4. Run a Claude Code test prompt

claude -p --output-format text --model claude-3-haiku-20240307 \
  'Reply with exactly ok and no punctuation.'
The validated result was: 
ok

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5. Check the traffic in GoModel

Open the GoModel dashboard audit logs: http://localhost:8080/admin/dashboard/audit This is the easiest place to confirm that Claude Code is reaching GoModel and to inspect the full request and response trail. From the same dashboard, you can keep following your GoModel traffic and usage.

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References

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Validated on March 10, 2026

This guide was validated against:
  • a local GoModel instance on http://localhost:8080
  • a GoModel branch exposing /p/{provider}/v1/...
  • Claude Code 2.1.72
Local validation confirmed:
  • GET /p/anthropic/v1/models returned 200 OK
  • POST /p/anthropic/v1/messages returned 200 OK
  • claude returned ok when pointed at GoModel