Do I need an API gateway if I'm only exposing a few endpoints to partners?

Not necessarily.

If you’re only exposing a few endpoints to partners, an API gateway may be useful but not required. The right choice depends on what you need around those endpoints.

You probably don’t need a gateway if:

• You have just a handful of endpoints
• Partners are few and well-managed
• You don’t need advanced features like:
  • auth/token validation at the edge
  • rate limiting / quotas
  • request/response transformation
  • centralized logging/analytics
  • API versioning policies
  • developer portal / API keys
  • traffic routing, canary deploys, or caching

In that case, a simpler setup like:

• your app server directly
• a reverse proxy like Nginx/Envoy
• or a lightweight load balancer

may be enough.

A gateway becomes worthwhile if you need:

• Partner-specific access control
• Rate limiting / throttling
• API keys / OAuth enforcement
• Consistent logging and monitoring
• Request validation
• Version management
• Protection from misuse or spikes
• One public entry point for multiple services

Simple rule of thumb

• Few endpoints, low complexity, trusted partners → no gateway needed
• Multiple partners, security/policy needs, growth expected → gateway is a good idea

Practical advice

If you’re unsure, start simple and add a gateway later if pain appears. Many teams begin with:

• a reverse proxy
• auth in the service
• basic rate limiting
• structured logging

Then move to a gateway once partner management or operational overhead grows.

If you want, I can also help you decide between API gateway vs reverse proxy vs direct service exposure for your specific setup.