Mood Booster Agent

Mood Booster Agent

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An ERC-8004 registered AI Agent that delivers uplifting messages via MCP protocol. Feel good? Tip 0.001 USDC!

Why This Project?

This is a complete reference implementation of the ERC-8004 Agent interaction loop:

1. On-chain Discovery — Query Identity Registry to find the agent's MCP endpoint
2. MCP Communication — Connect via SSE, call tools, get results
3. USDC Tipping — Reward the agent with on-chain micropayments
4. Reputation Feedback — Submit on-chain feedback to Reputation Registry (giveFeedback)
5. On-chain Verification — Server verifies tips and feedback via tx receipts

All 5 steps leave traceable on-chain records on ERC-8004 protocol contracts, making your wallet eligible for future ecosystem airdrops.

┌──────────────┐     ┌──────────────┐     ┌──────────────┐     ┌──────────────┐│  ERC-8004    │ --> │  MCP Server  │ --> │  USDC Tip    │ --> │  Reputation  ││  Identity    │     │  (SSE)       │     │  (ERC-20)    │     │  Registry    ││  Registry    │     │              │     │              │     │              ││  agentId     │     │  cheer_me_up │     │  0.001 USDC  │     │ giveFeedback ││  tokenURI    │     │  confirm_tip │     │  6 chains    │     │ on-chain     ││  agentWallet │     │  report_fbk  │     │              │     │ reputation   │└──────────────┘     └──────────────┘     └──────────────┘     └──────────────┘    Discover              Call                  Tip                Feedback

On-Chain Info

• Identity Registry: 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
• Reputation Registry: 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
• MCP Endpoint: https://oc-001.tail177fbd.ts.net/mcp/sse
• Tip Wallet: 0x4f5caa4fa9Dd7F92A687582b0e09234bEf49F80a

MCP Tools

Quick Start

Run the server

cd servernpm installnode index.mjs# MCP SSE: http://localhost:3004/sse# REST API: http://localhost:3004/api/cheer

Docker

docker build -t mood-booster-agent .docker run -p 3004:3004 mood-booster-agent

Full end-to-end loop

cd scripts && npm install
# Dry-run: discover → call MCP → on-chain feedback (no USDC tip)node discover_and_tip.mjs --agent-id 23139 --chain bsc --wallet-key 0xYOUR_KEY --dry-run
# Full loop: discover → call → tip → confirm → feedbacknode discover_and_tip.mjs --agent-id 23139 --chain bsc --wallet-key 0xYOUR_KEY
# Skip feedbacknode discover_and_tip.mjs --agent-id 23139 --chain bsc --wallet-key 0xYOUR_KEY --no-feedback

REST API (no MCP client needed)

curl https://oc-001.tail177fbd.ts.net/mcp/api/cheercurl "https://oc-001.tail177fbd.ts.net/mcp/api/cheer?category=joke"

Use with Claude Code

Add this to your ~/.claude/claude_code_config.json:

{  "mcpServers": {    "mood-booster": {      "type": "sse",      "url": "https://oc-001.tail177fbd.ts.net/mcp/sse"    }  }}

Then in Claude Code you can say:

> Cheer me up!> Tell me a programming joke> How do I tip this agent?

Use with Any MCP Client

import { Client } from "@modelcontextprotocol/sdk/client/index.js";import { SSEClientTransport } from "@modelcontextprotocol/sdk/client/sse.js";
const transport = new SSEClientTransport(new URL("https://oc-001.tail177fbd.ts.net/mcp/sse"));const client = new Client({ name: "my-agent", version: "1.0.0" });
await client.connect(transport);const result = await client.callTool({ name: "cheer_me_up", arguments: { category: "random" } });console.log(result.content[0].text);await client.close();

On-Chain Discovery

Any agent can discover this service directly from the blockchain:

import { ethers } from "ethers";
const registry = new ethers.Contract(  "0x8004A169FB4a3325136EB29fA0ceB6D2e539a432",  ["function tokenURI(uint256) view returns (string)"],  new ethers.JsonRpcProvider("https://bsc-dataseed.binance.org/"));
const uri = await registry.tokenURI(23139);  // agentId on BSCconst metadata = JSON.parse(atob(uri.split(",")[1]));console.log(metadata.services[0].endpoint);  // → MCP endpoint URL

Project Structure

├── server/                 # MCP Server (Express + SSE)│   ├── index.mjs           # Main server — 6 MCP tools│   ├── messages.json       # Message library (32 messages, 4 categories)│   └── package.json├── scripts/                # Client tools│   ├── discover_and_tip.mjs  # Full loop: discover → call → tip → feedback│   ├── test_mcp.mjs          # Quick MCP connection test│   ├── update_uri.mjs        # Update on-chain agentURI│   └── gen_wallets.mjs       # Generate test wallets├── metadata/│   └── mood_agent.json     # Agent metadata (stored on-chain as base64)├── Dockerfile              # Container build├── deploy.sh               # One-click deploy to server└── restart.sh              # Server restart script

Tech Stack

• Identity: ERC-8004 — AI Agent Identity Registry
• Reputation: ERC-8004 — On-chain feedback via Reputation Registry
• Protocol: MCP (Model Context Protocol) over SSE
• Payment: USDC (ERC-20) on BSC / Base / Ethereum
• Runtime: Node.js, Express, ethers.js
• Infrastructure: Tailscale Funnel (HTTPS reverse proxy)

Author

• GitHub: @edge-claw
• Twitter: @mutou1852
• Email: [email protected]
• Wallet: 0x4f5caa4fa9Dd7F92A687582b0e09234bEf49F80a

License

MIT