Now in General Availability — v3.2 Released

High-Performance API Gateway
for Microservices

Route, secure, and observe every request across your microservice mesh with sub-millisecond overhead. Built for teams that ship fast without sacrificing control.

Start Free — 10K RPM View Documentation

route /orders
  upstream  order-svc:8080
  rate_limit 1000rpm
  auth      jwt
  timeout    2s
  retry     3

FluxGate architecture diagram showing traffic flowing through the gateway to multiple microservices

Meridian Health

NovaPay

ClearBridge Data

Orion Logistics

Stackline

Vanta Cloud

Everything your API traffic needs — nothing it doesn't

FluxGate sits between your clients and your services, handling the hard parts so your teams can focus on product logic.

JWT & OAuth2 Authentication

Security

Validate JWTs, rotate keys, and enforce scopes per-route. Supports RS256, ES384, and custom claims. Integrates with Auth0, Okta, and Keycloak out of the box.

Adaptive Rate Limiting

Traffic Control

Set per-client, per-route, or global rate limits with sliding-window algorithms. Burst allowances and graceful degradation keep your APIs responsive under load.

Real-Time Observability

Monitoring

Latency percentiles, error rates, and request volumes streamed to Datadog, Prometheus, or OpenTelemetry. Custom dashboards update in under 2 seconds.

Response Caching & ETags

Performance

Edge-aware caching with configurable TTLs, stale-while-revalidate, and cache invalidation by route or tag. Cut origin load by up to 70% on read-heavy endpoints.

Circuit Breaker & Retry

Resilience

Automatic circuit breaking with configurable thresholds. Smart retries with exponential backoff and jitter. Fallback responses keep users informed during outages.

Declarative YAML Config

Developer Experience

Define routes, policies, and middleware in a single YAML file. Hot-reload without restarts. Version your gateway config alongside your application code.

Configure routes in seconds, not sprints

FluxGate's declarative configuration lets you define routing, auth, rate limits, and transforms in a single file. No SDK to install, no code changes to your services.

✓ Hot-reload configuration Update routes and policies without restarting your gateway or dropping connections.

✓ Service mesh aware Automatic service discovery via Consul, Kubernetes, or mDNS. No manual endpoint lists.

✓ Request/response transformation Rewrite headers, strip fields, or reshape payloads with built-in Lua or JSONata scripts.

✓ GraphQL federation support Aggregate multiple GraphQL backends behind a single unified schema endpoint.

# fluxgate.yaml
gateway:
  listen: ":8443"
  tls:
    cert: "/etc/fluxgate/cert.pem"
    key:  "/etc/fluxgate/key.pem"

routes:
  - path: "/api/v2/users/*"
    upstream: "user-svc:9090"
    auth:
      type: "jwt"
      issuer: "https://auth.novapay.io"
      required_scopes: ["read:users"]
    rate_limit:
      requests: 500
      window: "1m"
      burst: 50
    cache:
      enabled: true
      ttl: "30s"
      methods: ["GET"]

  - path: "/api/v2/orders/*"
    upstream: "order-svc:8080"
    auth:
      type: "oauth2"
      token_endpoint: "https://auth.novapay.io/token"
    circuit_breaker:
      threshold: 5
      timeout: "30s"
    retry:
      attempts: 3
      backoff: "exponential"

FluxGate dashboard showing real-time request metrics, latency graphs, and active route health status

Trusted by engineering teams at scale

From startups to enterprises, FluxGate handles millions of requests every day with zero-downtime deployments.

12.4M

Requests per second (peak)

<0.3ms

P99 gateway overhead

99.99%

Uptime SLA

840+

Production deployments

Engineering team reviewing FluxGate metrics on a shared monitor

"We cut our API latency by 40% and eliminated an entire ops hire."

Before FluxGate, we maintained three separate proxy layers — one for auth, one for rate limiting, and one for logging. Each added 3–5ms of overhead. FluxGate replaced all three with a single binary and a YAML file. Our p99 latency dropped from 87ms to 52ms in the first week.

The rate limiting alone saved us during our Black Friday sale. We handled 3x our normal traffic without a single 503.

— Priya Mehta, VP of Platform Engineering at NovaPay
Processing $2.1B in annual transaction volume across 14 microservices

Ready to put your APIs in the fast lane?

Start with the free tier — 10,000 requests per minute, no credit card required. Scale to production when you're ready.

Start Free — 10K RPM Talk to an Engineer

Free tier includes JWT auth, rate limiting, and basic observability. No expiration, no hidden fees.

High-Performance API Gatewayfor Microservices