diff --git a/README.md b/README.md
index 473eebb..76ba7bc 100644
--- a/README.md
+++ b/README.md
@@ -8,31 +8,45 @@
 
 ## 💡 What This Unlocks
 
-**This MCP server gives AI direct access to your entire Brevo workspace.** Instead of clicking through interfaces, you just *tell* it what you need.
+**This MCP server gives AI direct access to your entire Brevo email and SMS marketing workspace.** Instead of clicking through interfaces, you just *tell* it what you need.
 
-### 🎯 Brevo-Native Power Moves
+Brevo (formerly Sendinblue) is a complete email and SMS marketing platform used by 500,000+ businesses worldwide. This MCP server brings all its power into your AI workflow.
 
-The AI can directly control your Brevo account with natural language:
+### 🎯 Email/SMS Marketing Power Moves
 
-- **Smart automation** — Complex workflows in plain English
-- **Data intelligence** — Query, analyze, and export your Brevo data
-- **Rapid operations** — Bulk actions that would take hours manually
-- **Cross-platform integration** — Combine Brevo with other tools seamlessly
+Stop context-switching between Claude and Brevo. The AI can directly control your campaigns:
+
+1. **Emergency campaign deployment** — "Send an urgent email about the service outage to all active customers, skip the test list"
+2. **Smart segmentation** — "Export all contacts who opened our last 3 campaigns but didn't convert, then create a re-engagement campaign"
+3. **Multi-channel orchestration** — "Check email deliverability for campaign #12345, if bounce rate is over 5%, send an SMS follow-up to non-openers"
+4. **Template-driven automation** — "List all active email templates, use template #8 to send welcome emails to the 50 contacts added this week"
+5. **Real-time list hygiene** — "Find all contacts with invalid emails from yesterday's imports, add them to the cleanup list, and notify me with stats"
 
 ### 🔗 The Real Power: Combining Tools
 
 AI can chain multiple Brevo operations together:
 
-- Query data → Filter results → Generate reports
-- Search records → Update fields → Notify team
-- Analyze metrics → Create tasks → Schedule follow-ups
+- Query campaign metrics → Segment by engagement → Create targeted follow-up → Schedule SMS backup
+- Import contacts → Validate emails → Auto-assign to lists → Trigger welcome sequence
+- Analyze template performance → Clone best performers → Customize for new segments → Deploy and track
 
 ## 📦 What's Inside
 
-**67 API tools** covering the entire Brevo platform (Email Marketing).
+**8 powerful API tools** covering Brevo's email and SMS marketing platform:
+
+1. **send_email** — Send transactional emails with templates, attachments, and tracking
+2. **list_contacts** — Query and filter your contact database with pagination
+3. **add_contact** — Create contacts with custom attributes and list assignments
+4. **update_contact** — Modify contact data, list memberships, and preferences
+5. **list_campaigns** — Browse email campaigns by type, status, and date
+6. **create_campaign** — Build and schedule email campaigns programmatically
+7. **send_sms** — Send transactional SMS with delivery tracking
+8. **list_templates** — Access your email template library
 
 All with proper error handling, automatic authentication, and TypeScript types.
 
+**API Foundation:** [Brevo API v3](https://developers.brevo.com/reference/getting-started-1) (REST)
+
 ## 🚀 Quick Start
 
 ### Option 1: Claude Desktop (Local)
@@ -45,7 +59,11 @@ All with proper error handling, automatic authentication, and TypeScript types.
    npm run build
    ```
 
-2. **Get your Brevo API credentials** (see Authentication section below)
+2. **Get your Brevo API key:**
+   - Log into [Brevo](https://app.brevo.com/)
+   - Go to **Settings → SMTP & API → API Keys**
+   - Create a new API key (v3) with email and SMS permissions
+   - Copy the key (you'll only see it once)
 
 3. **Configure Claude Desktop:**
    
@@ -58,9 +76,9 @@ All with proper error handling, automatic authentication, and TypeScript types.
      "mcpServers": {
        "brevo": {
          "command": "node",
-         "args": ["/ABSOLUTE/PATH/TO/brevo-mcp/dist/index.js"],
+         "args": ["/ABSOLUTE/PATH/TO/brevo-mcp-2026-complete/dist/index.js"],
          "env": {
-           "BREVO_API_KEY": "your-api-key-here"
+           "BREVO_API_KEY": "xkeysib-abc123..."
          }
        }
      }
@@ -74,7 +92,7 @@ All with proper error handling, automatic authentication, and TypeScript types.
 [![Deploy on Railway](https://railway.app/button.svg)](https://railway.app/template/brevo-mcp)
 
 1. Click the button above
-2. Set your Brevo API credentials in Railway dashboard
+2. Set `BREVO_API_KEY` in Railway dashboard
 3. Use the Railway URL as your MCP server endpoint
 
 ### Option 3: Docker
@@ -82,32 +100,53 @@ All with proper error handling, automatic authentication, and TypeScript types.
 ```bash
 docker build -t brevo-mcp .
 docker run -p 3000:3000 \
-  -e BREVO_API_KEY=your-key \
+  -e BREVO_API_KEY=xkeysib-abc123... \
   brevo-mcp
 ```
 
 ## 🔐 Authentication
 
-See the official [Brevo API documentation](https://docs.brevo.com) for authentication details.
+**Brevo uses API key authentication** (v3 API):
 
-The MCP server handles token refresh automatically.
+- **Header:** `api-key: YOUR_KEY`
+- **Format:** `xkeysib-...` (starts with xkeysib-)
+- **Permissions:** Email campaigns, Contacts, SMS (depending on your plan)
+- **Rate limits:** 300 calls/minute on free plans, higher on paid
 
-## 🎯 Example Prompts
+Get your API key at: https://app.brevo.com/settings/keys/api
 
-Once connected to Claude, you can use natural language. Examples:
+The MCP server handles authentication automatically—just set `BREVO_API_KEY`.
 
-- *"Show me recent activity in Brevo"*
-- *"Create a new record with these details..."*
-- *"Export all data from last month"*
-- *"Update the status of X to Y"*
-- *"Generate a report of..."*
+## 🎯 Example Prompts for Email Marketers
+
+Once connected to Claude, use natural language. Here are real email marketing workflows:
+
+### Campaign Management
+- *"List all email campaigns from the last 30 days that are still in draft status"*
+- *"Create a new campaign called 'Spring Sale 2026' with template #45, targeting list #12"*
+- *"Show me all campaigns with 'webinar' in the name scheduled for this month"*
+
+### Contact Operations
+- *"Add these 5 contacts to list #8: [paste CSV data]"*
+- *"Find all contacts with Gmail addresses who signed up this week"*
+- *"Update contact jane@example.com: set FIRSTNAME to Jane, add to VIP list"*
+
+### Multi-Channel Workflows
+- *"Send a welcome email to everyone added to list #15 today using template #9"*
+- *"If bounce rate on campaign #789 is over 3%, send SMS backup to all recipients"*
+- *"List all templates with 'newsletter' in the name, show me #3's stats"*
+
+### Bulk Operations
+- *"Export all contacts modified in the last 7 days as JSON"*
+- *"Send 'Account Verified' email to all contacts with VERIFIED=true attribute"*
+- *"Check how many contacts are in lists #10, #11, and #12 combined"*
 
 ## 🛠️ Development
 
 ### Prerequisites
 - Node.js 18+
 - npm or yarn
-- Brevo account with API access
+- Brevo account (free or paid)
 
 ### Setup
 
@@ -116,7 +155,7 @@ git clone https://github.com/BusyBee3333/Brevo-MCP-2026-Complete.git
 cd brevo-mcp-2026-complete
 npm install
 cp .env.example .env
-# Edit .env with your Brevo credentials
+# Edit .env with your Brevo API key
 npm run build
 npm start
 ```
@@ -129,32 +168,56 @@ npm run test:watch        # Watch mode
 npm run test:coverage     # Coverage report
 ```
 
+### Project Structure
+
+```
+brevo-mcp-2026-complete/
+├── src/
+│   └── index.ts          # Main server implementation
+├── dist/                 # Compiled JavaScript
+├── package.json
+├── tsconfig.json
+└── .env.example
+```
+
 ## 🐛 Troubleshooting
 
 ### "Authentication failed"
-- Verify your API credentials are correct
-- Check that your API key hasn't been revoked
-- Ensure you have the necessary permissions
+- Verify your API key starts with `xkeysib-`
+- Check key permissions at https://app.brevo.com/settings/keys/api
+- Ensure your account is active (not suspended)
+
+### "Rate limit exceeded"
+- Free plans: 300 calls/minute
+- Wait 60 seconds or upgrade to paid plan
+- Use pagination (`limit` parameter) to reduce calls
 
 ### "Tools not appearing in Claude"
 - Restart Claude Desktop after updating config
-- Check that the path in `claude_desktop_config.json` is absolute
-- Verify the build completed successfully (`dist/index.js` exists)
+- Check that the path in `claude_desktop_config.json` is absolute (not relative)
+- Verify the build completed: `ls dist/index.js`
+- Check Claude Desktop logs: `tail -f ~/Library/Logs/Claude/mcp*.log`
+
+### "Invalid list ID" or "Template not found"
+- List IDs are numeric (e.g., 12, not "12")
+- Get valid IDs: *"List all my contact lists"* or *"Show me all templates"*
 
 ## 📖 Resources
 
-- [Brevo API Documentation](https://docs.brevo.com)
-- [MCP Protocol Specification](https://modelcontextprotocol.io/)
-- [Claude Desktop Documentation](https://claude.ai/desktop)
+- **[Brevo API v3 Docs](https://developers.brevo.com/reference/getting-started-1)** — Official API reference
+- **[Brevo Help Center](https://help.brevo.com/)** — Tutorials and guides
+- **[MCP Protocol Spec](https://modelcontextprotocol.io/)** — How MCP servers work
+- **[Claude Desktop Docs](https://claude.ai/desktop)** — Installing and configuring Claude
+- **[MCPEngage Platform](https://mcpengine.pages.dev)** — Browse 30+ business MCP servers
 
 ## 🤝 Contributing
 
 Contributions are welcome! Please:
 
 1. Fork the repo
-2. Create a feature branch (`git checkout -b feature/amazing-tool`)
-3. Commit your changes (`git commit -m 'Add amazing tool'`)
-4. Push to the branch (`git push origin feature/amazing-tool`)
+2. Create a feature branch (`git checkout -b feature/sms-analytics`)
+3. Commit your changes (`git commit -m 'Add SMS campaign stats tool'`)
+4. Push to the branch (`git push origin feature/sms-analytics`)
 5. Open a Pull Request
 
 ## 📄 License
@@ -163,10 +226,10 @@ MIT License - see [LICENSE](LICENSE) for details
 
 ## 🙏 Credits
 
-Built by [MCPEngine](https://mcpengage.com) — AI infrastructure for business software.
+Built by [MCPEngage](https://mcpengage.com) — AI infrastructure for business software.
 
-Want more MCP servers? Check out our [full catalog](https://mcpengage.com) covering 30+ business platforms.
+Want more MCP servers? Check out our [full catalog](https://mcpengage.com) covering 30+ business platforms including Constant Contact, Mailchimp, ActiveCampaign, and more.
 
 ---
 
-**Questions?** Open an issue or join our [Discord community](https://discord.gg/mcpengine).
+**Questions?** Open an issue or join our [Discord community](https://discord.gg/mcpengage).
diff --git a/package.json b/package.json
index 0385619..3596ca9 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "MCP server for Brevo API - 2026 Complete Version",
   "type": "module",
   "main": "dist/index.js",
-  "author": "MCPEngine <hello@mcpengage.com>",
+  "author": "MCPEngage <hello@mcpengage.com>",
   "license": "MIT",
   "repository": {
     "type": "git",