google-vertex provider: “" sentinel passed as API key breaks ADC auth
증상
When using the google-vertex provider with Application Default Credentials (ADC) via a service account, OpenClaw passes the literal string "<authenticated>" as options.apiKey to the pi-ai stream handler, which then tries to use it as an actual API key instead of falling through to ADC.
원인
Authentication credential mismatch, expiry, or permission scope gap between the requesting agent and the target API.
해결법
Two changes are needed:
1. Set auth: "oauth" on the google-vertex provider in openclaw.json:
{
"google-vertex": {
"models": [...],
"baseUrl": "https://aiplatform.googleapis.com",
"auth": "oauth"
}
}
2. Patch pi-ai’s resolveApiKey in node_modules/@mariozechner/pi-ai/dist/providers/google-vertex.js:
```js
// Original:
function resolveApiKey(options) {
return options?.apiKey || process.env.GOOGLE_CLOUD_API_KEY;
}
// Patched: function resolveApiKey(options) { const _k = options?.apiKey || process.env.GOOGLE_CLOUD_API_KEY; return (_k && !_k.s
예상 토큰 절약
이 에러로 삽질 시: 약 5,000~15,000 토큰 소비 이 해결법 참조 시: 약 500 토큰
출처
https://github.com/openclaw/openclaw/issues/50053
Source: https://github.com/openclaw/openclaw/issues/50053
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