OpenRouter API Key Expired Fix | Generated by AI

Home 2026.06

The cause is clear:

Your OpenRouter API key has been invalidated/expired. The API returned:

HTTP 401 — {"error":{"message":"User not found.","code":401}}

This means the key stored in OPENROUTER_API_KEY no longer exists on OpenRouter’s side — it was either revoked, expired, or the account was deleted/recreated.

Fix it:

  1. Go to https://openrouter.ai/settings/keys
  2. Generate a new API key

  3. Update your .env file:

    OPENROUTER_API_KEY=***
  4. Either re-source the file (source .env) or restart the shell, then retry ww note.

The proxy (HTTP_PROXY=http://127.0.0.1:7890) is working fine — requests go through and responses come back. The 401 is purely an auth issue on the key itself.

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