Deployed version

deploy/.env.example

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+# MCPletA2A — Environment Variables
+# Copy to .env and fill in values: cp .env.example .env
+
+# LLM API Key (choose one)
+# ANTHROPIC_API_KEY=sk-ant-...
+OPENROUTER_API_KEY=sk-or-...

deploy/mcplet-a2a.service

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+[Unit]
+Description=MCPletA2A Platform Host
+After=network.target
+
+[Service]
+Type=simple
+User=ubuntu
+WorkingDirectory=/home/ubuntu/MCPletA2A
+EnvironmentFile=/home/ubuntu/MCPletA2A/deploy/.env
+Environment=REF_IMPL_DIST=/home/ubuntu/MCPletA2A/reference_impl/dist
+Environment=MCPLET_CONFIG=/home/ubuntu/MCPletA2A/reference_impl/config/reference.yaml
+Environment=MCPLET_AGENT_MODULE=file:///home/ubuntu/MCPletA2A/reference_impl/dist/agents/register.js
+Environment=NODE_ENV=production
+ExecStart=/bin/bash /home/ubuntu/MCPletA2A/deploy/start-vps.sh
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target

deploy/nginx-a2a-demo.conf

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+# MCPletA2A — nginx reverse proxy for a2a-demo.mcplet.ai
+# Install: sudo cp deploy/nginx-a2a-demo.conf /etc/nginx/sites-available/a2a-demo.conf
+#          sudo ln -s /etc/nginx/sites-available/a2a-demo.conf /etc/nginx/sites-enabled/
+#          sudo nginx -t && sudo systemctl reload nginx
+
+server {
+    listen 80;
+    listen [::]:80;
+    server_name a2a-demo.mcplet.ai;
+
+    # Certbot will add HTTPS redirect here
+    location / {
+        return 301 https://$host$request_uri;
+    }
+}
+
+server {
+    listen 443 ssl;
+    listen [::]:443 ssl;
+    server_name a2a-demo.mcplet.ai;
+
+    # Certbot will fill these in
+    # ssl_certificate /etc/letsencrypt/live/a2a-demo.mcplet.ai/fullchain.pem;
+    # ssl_certificate_key /etc/letsencrypt/live/a2a-demo.mcplet.ai/privkey.pem;
+
+    # A2A External Endpoint
+    location /a2a/ {
+        proxy_pass http://127.0.0.1:4001;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Passkey REST API (proxied, strip prefix)
+    location /passkey-api/ {
+        rewrite ^/passkey-api(/.*)$ $1 break;
+        proxy_pass http://127.0.0.1:8443;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Dashboard (default)
+    location / {
+        proxy_pass http://127.0.0.1:4000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Security headers
+    add_header X-Frame-Options DENY always;
+    add_header X-Content-Type-Options nosniff always;
+    add_header Referrer-Policy strict-origin-when-cross-origin always;
+}

deploy/start-vps.sh

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+#!/usr/bin/env bash
+# MCPletA2A — VPS startup script (used by systemd)
+set -euo pipefail
+
+BASE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+REF_DIR="$BASE_DIR/reference_impl"
+PLATFORM_DIR="$BASE_DIR/platform_impl"
+
+export REF_IMPL_DIST="$REF_DIR/dist"
+export MCPLET_CONFIG="$REF_DIR/config/reference.yaml"
+export MCPLET_AGENT_MODULE="file://$REF_DIR/dist/agents/register.js"
+
+# Start Mock Service in background
+node "$REF_DIR/dist/mock-services/server.js" &
+MOCK_PID=$!
+
+# Wait until mock service is ready (max 10s)
+for i in $(seq 1 20); do
+  if node -e "
+    const net = require('net');
+    const s = net.createConnection(5100, '127.0.0.1');
+    s.on('connect', () => { s.destroy(); process.exit(0); });
+    s.on('error',   () => { s.destroy(); process.exit(1); });
+  " 2>/dev/null; then
+    echo "[vps] Mock Service ready (pid $MOCK_PID)"
+    break
+  fi
+  sleep 0.5
+  if [ "$i" -eq 20 ]; then
+    echo "[vps] ERROR: Mock Service did not start" >&2
+    exit 1
+  fi
+done
+
+# Start Platform Host (foreground — systemd monitors this)
+exec node "$PLATFORM_DIR/dist/index.js"