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# Platform Example: AI Agents Meet Real Microservices
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This example mirrors the [micro/blog](https://github.com/micro/blog) platform — a real microblogging application built on Go Micro. It demonstrates how existing microservices become AI-accessible through MCP with **zero changes to business logic**.
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## Services
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| Service | Endpoints | Description |
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|---------|-----------|-------------|
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| **Users** | Signup, Login, GetProfile, UpdateStatus, List | Account management and authentication |
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| **Posts** | Create, Read, Update, Delete, List, TagPost, UntagPost, ListTags | Blog posts with markdown and tagging |
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| **Comments** | Create, List, Delete | Threaded comments on posts |
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| **Mail** | Send, Read | Internal messaging between users |
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## Running
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```bash
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go run .
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```
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MCP tools available at: http://localhost:3001/mcp/tools
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## Agent Scenarios
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These are realistic multi-step workflows an AI agent can complete:
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### 1. New User Onboarding
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```
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"Sign up a new user called carol, then write a welcome post introducing herself"
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```
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The agent will: call Signup → use the returned user ID → call Posts.Create
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### 2. Content Creation
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```
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"Log in as alice and write a blog post about Go concurrency patterns, then tag it with 'golang' and 'concurrency'"
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```
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The agent will: call Login → call Posts.Create → call TagPost twice
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### 3. Social Interaction
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```
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"List all posts, find the welcome post, and comment on it as bob saying 'Great to be here!'"
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```
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The agent will: call Posts.List → pick the right post → call Comments.Create
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### 4. Cross-Service Workflow
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```
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"Send a mail from alice to bob welcoming him, then check bob's inbox to confirm delivery"
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```
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The agent will: call Mail.Send → call Mail.Read to verify
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### 5. Platform Overview
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```
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"Show me all users, all posts, and all tags currently in use"
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```
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The agent will: call Users.List, Posts.List, and ListTags (potentially in parallel)
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## How It Works
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The key insight: **you don't need to write any agent-specific code**. The MCP gateway discovers services from the registry, extracts tool schemas from Go types, and generates descriptions from doc comments.
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```go
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service := micro.NewService("platform",
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micro.Address(":9090"),
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mcp.WithMCP(":3001"), // This one line makes everything AI-accessible
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)
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service.Handle(&Users{})
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service.Handle(&Posts{})
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service.Handle(&Comments{})
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service.Handle(&Mail{})
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```
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Each handler method becomes an MCP tool. The `@example` tags in doc comments give agents sample inputs to learn from.
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## Connecting to Claude Code
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Add to your Claude Code MCP config:
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```json
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{
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"mcpServers": {
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"platform": {
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"command": "curl",
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"args": ["-s", "http://localhost:3001/mcp/tools"]
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}
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}
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}
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```
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Or use stdio transport:
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```bash
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micro mcp serve --registry mdns
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```
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## Architecture
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```
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Agent (Claude, GPT, etc.)
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│
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▼
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MCP Gateway (:3001) ← Discovers services, generates tools
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│
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▼
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Go Micro RPC (:9090) ← Standard service mesh
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│
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├── UserService ← Signup, Login, Profile
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├── PostService ← CRUD + Tags
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├── CommentService ← Threaded comments
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└── MailService ← Internal messaging
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```
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## Relation to micro/blog
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This example is a simplified, self-contained version of [micro/blog](https://github.com/micro/blog). The real platform splits each service into its own binary with protobuf definitions. This example uses Go structs directly for simplicity, but the MCP integration works identically either way — the gateway discovers services from the registry regardless of how they're implemented.
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