# Nginx Configuration for Universal Crypto MCP Gateway
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log warn;
pid /var/run/nginx.pid;
events {
worker_connections 4096;
use epoll;
multi_accept on;
}
http {
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Logging format
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" '
'rt=$request_time uct="$upstream_connect_time" '
'uht="$upstream_header_time" urt="$upstream_response_time"';
log_format json escape=json '{'
'"time":"$time_iso8601",'
'"remote_addr":"$remote_addr",'
'"request":"$request",'
'"status":$status,'
'"body_bytes_sent":$body_bytes_sent,'
'"request_time":$request_time,'
'"upstream_response_time":"$upstream_response_time",'
'"http_referrer":"$http_referer",'
'"http_user_agent":"$http_user_agent",'
'"request_id":"$http_x_request_id"'
'}';
access_log /var/log/nginx/access.log json;
# Performance settings
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
client_max_body_size 10m;
# Gzip compression
gzip on;
gzip_vary on;
gzip_proxied any;
gzip_comp_level 6;
gzip_types text/plain text/css text/xml application/json application/javascript
application/xml application/xml+rss text/javascript application/x-javascript;
# Rate limiting zones
limit_req_zone $binary_remote_addr zone=api:10m rate=100r/s;
limit_req_zone $http_x_payment zone=paid:10m rate=1000r/s;
limit_conn_zone $binary_remote_addr zone=conn:10m;
# Upstream backend
upstream gateway {
least_conn;
server gateway:3000 max_fails=3 fail_timeout=30s;
keepalive 32;
}
# HTTP to HTTPS redirect
server {
listen 80;
server_name _;
location /.well-known/acme-challenge/ {
root /var/www/certbot;
}
location / {
return 301 https://$host$request_uri;
}
}
# Main HTTPS server
server {
listen 443 ssl http2;
server_name api.universal-crypto-mcp.com;
# SSL configuration
ssl_certificate /etc/nginx/certs/fullchain.pem;
ssl_certificate_key /etc/nginx/certs/privkey.pem;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;
# Modern SSL configuration
ssl_protocols TLSv1.2 TLSv1.3;
ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384;
ssl_prefer_server_ciphers off;
# HSTS
add_header Strict-Transport-Security "max-age=63072000" always;
# Security headers
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
add_header Referrer-Policy "strict-origin-when-cross-origin";
# Health check (no rate limit)
location /health {
proxy_pass http://gateway;
proxy_http_version 1.1;
proxy_set_header Connection "";
}
# Metrics (internal only)
location /metrics {
allow 10.0.0.0/8;
allow 172.16.0.0/12;
allow 192.168.0.0/16;
deny all;
proxy_pass http://gateway;
proxy_http_version 1.1;
proxy_set_header Connection "";
}
# Free tier endpoints (rate limited)
location /api/v1/prices {
limit_req zone=api burst=20 nodelay;
limit_conn conn 10;
proxy_pass http://gateway;
proxy_http_version 1.1;
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;
proxy_set_header X-Request-ID $request_id;
proxy_set_header Connection "";
proxy_connect_timeout 60s;
proxy_send_timeout 60s;
proxy_read_timeout 60s;
}
# Paid tier endpoints (x402)
location /api/v1/ {
limit_req zone=paid burst=100 nodelay;
proxy_pass http://gateway;
proxy_http_version 1.1;
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;
proxy_set_header X-Request-ID $request_id;
proxy_set_header Connection "";
proxy_connect_timeout 60s;
proxy_send_timeout 60s;
proxy_read_timeout 60s;
}
# MCP endpoint (x402 protected, streaming)
location /mcp {
limit_req zone=paid burst=50 nodelay;
proxy_pass http://gateway;
proxy_http_version 1.1;
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;
proxy_set_header X-Request-ID $request_id;
proxy_set_header Connection "";
# SSE support for streaming
proxy_buffering off;
proxy_cache off;
chunked_transfer_encoding on;
proxy_connect_timeout 300s;
proxy_send_timeout 300s;
proxy_read_timeout 300s;
}
# Discovery document
location /.well-known/x402 {
proxy_pass http://gateway;
proxy_http_version 1.1;
proxy_set_header Connection "";
# Cache discovery document
proxy_cache_valid 200 5m;
}
# Error pages
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
# Grafana subdomain
server {
listen 443 ssl http2;
server_name grafana.universal-crypto-mcp.com;
ssl_certificate /etc/nginx/certs/fullchain.pem;
ssl_certificate_key /etc/nginx/certs/privkey.pem;
location / {
proxy_pass http://grafana:3000;
proxy_http_version 1.1;
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;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
}
}
}
