LangChain Agent MCP Server

# Setting Up OpenAI API Key ## Current Status ❌ **OPENAI_API_KEY is NOT configured** The service is running but won't be able to execute agent requests without the API key. ## Option 1: Using Secret Manager (Recommended) **More secure** - API key is stored encrypted in Google Secret Manager. ### Step 1: Create the Secret ```powershell $env:PATH += ";C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\bin" # Replace with your actual API key "sk-proj-your-actual-api-key-here" | gcloud secrets create openai-api-key --data-file=- ``` ### Step 2: Grant Cloud Run Access ```powershell $projectNumber = (gcloud projects describe slashmcp --format="value(projectNumber)") gcloud secrets add-iam-policy-binding openai-api-key ` --member="serviceAccount:$projectNumber-compute@developer.gserviceaccount.com" ` --role="roles/secretmanager.secretAccessor" ``` ### Step 3: Update the Service ```powershell gcloud run services update langchain-agent-mcp-server ` --update-secrets=OPENAI_API_KEY=openai-api-key:latest ` --region us-central1 ``` ## Option 2: Using Environment Variable (Quick) **Less secure** - API key is visible in service configuration. ```powershell $env:PATH += ";C:\Program Files (x86)\Google\Cloud SDK\google-cloud-sdk\bin" # Replace with your actual API key gcloud run services update langchain-agent-mcp-server ` --set-env-vars OPENAI_API_KEY=sk-proj-your-actual-api-key-here ` --region us-central1 ``` ## Option 3: Using Google Cloud Console (GUI) 1. Go to: https://console.cloud.google.com/run/detail/us-central1/langchain-agent-mcp-server?project=slashmcp 2. Click **"EDIT & DEPLOY NEW REVISION"** 3. Go to **"Variables & Secrets"** tab 4. Click **"ADD VARIABLE"** or **"REFERENCE A SECRET"** 5. For environment variable: - Name: `OPENAI_API_KEY` - Value: Your API key 6. For secret (recommended): - Click **"REFERENCE A SECRET"** - Create new secret or select existing - Name: `OPENAI_API_KEY` - Secret: `openai-api-key:latest` 7. Click **"DEPLOY"** ## Verify It's Set After setting the key, test it: ```powershell $serviceUrl = "https://langchain-agent-mcp-server-554655392699.us-central1.run.app" $body = @{ tool = "agent_executor" arguments = @{ query = "What is 2+2?" } } | ConvertTo-Json Invoke-WebRequest -Uri "$serviceUrl/mcp/invoke" ` -Method POST ` -ContentType "application/json" ` -Body $body ``` If it works, you'll get a response. If not, check the logs: ```powershell gcloud run services logs read langchain-agent-mcp-server ` --platform managed ` --region us-central1 ` --project slashmcp ` --limit 20 ``` --- **Recommendation:** Use Secret Manager (Option 1) for production deployments.