api-gateway

Generate production-ready API gateway configurations for the most popular platforms — Kong, Traefik, nginx, and Apache — directly from OpenAPI specs or plain conversational descriptions. Stop hand-crafting routing rules and let Anvil generate, validate, and optimize your gateway config.

What It Does

api-gateway bridges the gap between API design and infrastructure configuration. Provide it an OpenAPI 3.x spec or describe your routing requirements in plain language, and it will emit ready-to-deploy configuration files with best-practice defaults baked in:

• Rate limiting rules per route and per consumer
• Authentication middleware (JWT, API key, OAuth2, basic auth)
• Load balancing with health checks and circuit breakers
• TLS termination and certificate configuration
• CORS headers with environment-appropriate policies
• Request/response transformation plugins
• Logging and tracing integration (Datadog, Jaeger, Prometheus)
• Canary routing and A/B deployment splits

Installation

anvil skill install api-gateway

Usage

Generate from OpenAPI Spec

/api-gateway generate --spec ./openapi.yaml --platform kong

Describe Your Gateway Conversationally

/api-gateway "Route /api/v1/users to service user-svc:3000 with JWT auth,
 rate limit 100 req/min, CORS allow https://app.example.com"

Generate for Multiple Platforms

/api-gateway generate --spec ./openapi.yaml --platform kong,traefik

Validate Existing Config

/api-gateway validate ./kong.yaml

Migrate Between Platforms

/api-gateway migrate --from nginx --to traefik --input ./nginx.conf

Configuration Options

Option	Description	Default
--platform	Target platform: kong, traefik, nginx, apache	kong
--spec	Path to OpenAPI 3.x spec	none
--env	Environment profile: dev, staging, prod	prod
--auth	Default auth method: jwt, apikey, oauth2, none	none
--rate-limit	Default rate limit (req/min)	60
--output	Output directory for generated files	./gateway

Supported Platforms

• Kong: Declarative config (deck), Admin API format, KIC (Kubernetes Ingress Controller)
• Traefik: Static config, dynamic config, Kubernetes CRDs (IngressRoute)
• nginx: nginx.conf, location blocks, upstream groups, lua plugins
• Apache: VirtualHost blocks, mod_proxy, mod_rewrite, mod_security rules

Requirements

• OpenAPI 3.x spec OR a description of your routing requirements
• Target platform must be specified (defaults to Kong)