LangChain Agent MCP Server

# API Key Troubleshooting ## Current Status ✅ **API Key is configured** in Cloud Run service ❌ **OpenAI returned 401 Unauthorized** error ## Error Details ``` Error code: 401 - Incorrect API key provided ``` ## Possible Causes ### 1. Invalid or Expired API Key - Check your API key at: https://platform.openai.com/account/api-keys - Make sure the key is active and not revoked - Verify you're using the correct key (not a test key) ### 2. API Key Format Issue The key should start with `sk-proj-` or `sk-` and be the full key. ### 3. Billing/Quota Issues - Check your OpenAI account has credits/billing set up - Verify you haven't exceeded rate limits ## Verify Your Key Works ### Test Locally ```powershell # Test if your key works py -c "from openai import OpenAI; client = OpenAI(api_key='sk-proj-your-key'); models = list(client.models.list()); print('✅ Key works!' if models else '❌ Key invalid')" ``` ### Check in OpenAI Dashboard 1. Go to: https://platform.openai.com/account/api-keys 2. Verify your key is listed and active 3. Check usage/credits: https://platform.openai.com/usage ## Update the Key If you need to update the key in Cloud Run: ```powershell $env:PATH += ";C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\bin" # Update with new key gcloud run services update langchain-agent-mcp-server ` --set-env-vars "OPENAI_API_KEY=sk-proj-your-new-key-here" ` --region us-central1 ``` ## Alternative: Use Secret Manager For better security, use Secret Manager: ```powershell # Create secret "sk-proj-your-key" | gcloud secrets create openai-api-key --data-file=- # Grant access $projectNumber = (gcloud projects describe slashmcp --format="value(projectNumber)") gcloud secrets add-iam-policy-binding openai-api-key ` --member="serviceAccount:$projectNumber-compute@developer.gserviceaccount.com" ` --role="roles/secretmanager.secretAccessor" # Update service gcloud run services update langchain-agent-mcp-server ` --update-secrets=OPENAI_API_KEY=openai-api-key:latest ` --region us-central1 ``` ## Check Service Logs ```powershell gcloud run services logs read langchain-agent-mcp-server ` --platform managed ` --region us-central1 ` --project slashmcp ` --limit 50 ``` --- **Next Step:** Verify your API key is valid at https://platform.openai.com/account/api-keys