Use Case

Modernize Without
Rewriting

Put Nolxy in front of your legacy API. Get authentication, rate limiting, caching, analytics, and DDoS protection — without changing a single line of your existing code.

Before & After Nolxy

No rate limiting
Per-key quota enforcement
No authentication
API keys with scoping
No observability
Request analytics & logging
No DDoS protection
ProxyShield security layer
Exposes internal fields
Field masking at gateway
No caching
Response caching (L1 + L2)

The Migration Playbook

Five steps to bring your legacy API into the modern era. Each step is independent — do them all or pick what you need.

STEP 01

Deploy Nolxy in front of your legacy API

Point Nolxy at your existing backend. Zero code changes required. Your consumers don't even notice.

  • Configure a route: /api/* → https://your-legacy-api.com/*
  • Enable API key authentication
  • Enable request logging for instant observability

STEP 02

Add security and rate limiting

Your legacy API probably has no rate limiting, no API keys, and no DDoS protection. Nolxy adds all three instantly.

  • API key auth with domain/method/path scoping
  • Rate limiting with per-key quotas
  • ProxyShield security layer
  • IP allow/block lists with CIDR support

STEP 03

Transform requests and responses

Your legacy API returns XML? Uses snake_case? Exposes internal IDs? Fix it at the gateway without touching old code.

  • Rename fields: customer_id → customerId
  • Mask PII: ssn → ***REDACTED***
  • Inject JWT claims as headers for your backend
  • Add security headers (CSP, HSTS, X-Frame-Options)

STEP 04

Cache responses and monitor everything

Speed up slow legacy endpoints with caching. See exactly what's happening with built-in request analytics.

  • L1 in-memory + L2 Redis response caching
  • Latency breakdown: gateway vs backend
  • Geo enrichment and request analytics
  • Circuit breakers to protect failing backends

STEP 05

Migrate consumers gradually

Move consumers to Nolxy-managed API keys one by one. No big-bang migration. Use the Developer Portal for self-service onboarding.

  • Developer Portal for self-serve key generation
  • Per-consumer rate limits and quota
  • Webhook notifications for quota warnings
  • Audit trail for all operations

Architecture After Migration

API Consumers

Mobile, Web, Partners, Internal

Nolxy Gateway

Auth, Rate Limit, Cache, Transform, Analytics

Your Legacy API

Zero changes required to your existing code.

Don't Rewrite. Evolve.

Sign up and start proxying your existing API in minutes. No credit card required.