Test Claude Code on Claude seats in VS Code

Try the Claude subscription mode of the WASViking AI Gateway on one computer before you distribute the managed settings file. A separate VS Code profile, the settings to paste, and six tests with what to expect in Claude Code and on Traffic.

Before you distribute the managed settings file to the whole team, you can try the WASViking^® AI Gateway with Claude Code on one computer. This guide uses a separate VS Code profile, so only that window goes through the gateway, and ends with six tests that show what developers will see.

Before you start

• A gateway with the Claude subscription sign-in and the policies of Steps 1 and 2 of Protect Claude Code on Claude seats.
• VS Code on the computer, and a Claude account of your organization.
• To try with a personal Claude account, save the gateway with any organization ID, send the first test of Step 5, then add the ID that the gateway row on Workloads lists as refused, and send it again.
• Test data only. The examples use AKIAIOSFODNN7EXAMPLE, the example access key from AWS's own documentation. Never use a real key or a real person's data in a test.

Step 1: copy the VS Code block

On Integrations, under Claude Code on Claude Team or Enterprise seats, select Generate the managed settings file next to the gateway. Below the file, the result shows To test in VS Code on one computer: the same settings in the format of VS Code. Select Copy next to that block.

The key in the picture is an example. Yours is shown once.

The block carries the organization key. Keep it like a password and revoke it when you finish (Step 7).

Step 2: open a separate VS Code profile

The settings of a profile apply to every Claude Code session of that window. A separate profile keeps your usual VS Code as it is.

1. In VS Code, select File, New Window with Profile, New Profile.
2. Give it a name, for example WASViking gateway test, and select Create. A new window opens with that profile.
3. In that window, open Extensions, search for Claude Code and install the extension published by Anthropic, if it is not there yet.

Step 3: paste the settings

1. In the new window, open the Command Palette: Cmd+Shift+P on macOS, Ctrl+Shift+P on Windows and Linux.
2. Run Preferences: Open User Settings (JSON).
3. Paste the block inside the outer braces. If other settings are already there, add a comma at the end of the line before it. Save the file.

A complete file looks like this. Your address and key come from your block:

{
  "editor.fontSize": 14,
  "claudeCode.environmentVariables": [
    { "name": "ANTHROPIC_BASE_URL", "value": "https://api.wasviking.com/ai-gateway/claude-subscription" },
    { "name": "ANTHROPIC_CUSTOM_HEADERS", "value": "x-wasviking-gateway-key: wvag_your-organization-key" },
    { "name": "CLAUDE_CODE_ENABLE_TELEMETRY", "value": "1" },
    { "name": "OTEL_LOGS_EXPORTER", "value": "otlp" },
    { "name": "OTEL_METRICS_EXPORTER", "value": "otlp" },
    { "name": "OTEL_EXPORTER_OTLP_PROTOCOL", "value": "http/json" },
    { "name": "OTEL_EXPORTER_OTLP_ENDPOINT", "value": "https://api.wasviking.com/ai-gateway/claude-subscription/otlp" },
    { "name": "OTEL_EXPORTER_OTLP_HEADERS", "value": "x-wasviking-gateway-key=wvag_your-organization-key" },
    { "name": "OTEL_LOGS_EXPORT_INTERVAL", "value": "1000" },
    { "name": "CLAUDE_CODE_GATEWAY_HINT_HEADERS", "value": "1" }
  ]
}

VS Code underlines a missing comma in red: fix it before you go on.

Do not paste the block in your usual profile, and do not use a project's .claude folder for it: Claude Code does not take the telemetry from a project folder, and the gateway would refuse the session.

Step 4: reload and sign in

1. In the Command Palette, run Developer: Reload Window.
2. Open Claude Code in that window from its icon.
3. If Claude Code asks you to sign in, choose the option for a Claude account with a subscription and sign in with your company Claude account.

Step 5: run the tests

Keep Traffic open in the portal, choose the gateway in the filter and select Filter after each test to see the new rows.

Test 2 uses the message of the Block secrets in requests template. If you wrote your own rule, Claude Code shows your rule's message.

Select a row on Traffic to see the decision, the rule, what was found and the status. The gateway keeps metadata only, never prompts or answers.

Step 6 (optional): test in the terminal

To try the same settings with Claude Code in a terminal on this computer, set the variables in that terminal and start Claude Code. On macOS and Linux:

export ANTHROPIC_BASE_URL="https://api.wasviking.com/ai-gateway/claude-subscription"
export ANTHROPIC_CUSTOM_HEADERS="x-wasviking-gateway-key: wvag_your-organization-key"
export CLAUDE_CODE_ENABLE_TELEMETRY=1
export OTEL_LOGS_EXPORTER=otlp
export OTEL_METRICS_EXPORTER=otlp
export OTEL_EXPORTER_OTLP_PROTOCOL=http/json
export OTEL_EXPORTER_OTLP_ENDPOINT="https://api.wasviking.com/ai-gateway/claude-subscription/otlp"
export OTEL_EXPORTER_OTLP_HEADERS="x-wasviking-gateway-key=wvag_your-organization-key"
export OTEL_LOGS_EXPORT_INTERVAL=1000
export CLAUDE_CODE_GATEWAY_HINT_HEADERS=1
claude

On Windows, in PowerShell, set each variable the same way, for example $env:ANTHROPIC_BASE_URL = "https://api.wasviking.com/ai-gateway/claude-subscription", then run claude.

In Claude Code, run /status: the Anthropic base URL line shows the gateway address. The variables last until you close that terminal.

Step 7: finish the test

1. Remove the block from the profile's settings, or delete the test profile in VS Code's Profiles editor.
2. On Access & Keys, revoke the key of the block: its label is claude-code- followed by the gateway identifier.
3. To roll out to the team, generate a new file and distribute it as in Steps 3 and 4 of Protect Claude Code on Claude seats.

Troubleshooting