---
id: kb-2026-00159
title: API Gateway
schema_type: TechArticle
category: computer-science
language: en
confidence: medium
last_verified: '2026-05-28'
created_date: '2026-05-22'
generation_method: ai_structured
derived_from_human_seed: true
conflict_of_interest: none_declared
is_live_document: false
data_period: static
atomic_facts:
  - id: fact-api-gateway-1
    statement: >-
      Microsoft describes an API gateway pattern as an alternative to direct client-to-microservice
      communication.
    source_title: 'Microsoft Learn: API Gateway Pattern'
    source_url: >-
      https://learn.microsoft.com/en-us/dotnet/architecture/microservices/architect-microservice-container-applications/direct-client-to-microservice-communication-versus-the-api-gateway-pattern
    confidence: medium
  - id: fact-api-gateway-2
    statement: >-
      Microsoft notes that API gateway products commonly act as reverse proxies for ingress
      communication and can apply authorization.
    source_title: 'Microsoft Learn: API Gateway Pattern'
    source_url: >-
      https://learn.microsoft.com/en-us/dotnet/architecture/microservices/architect-microservice-container-applications/direct-client-to-microservice-communication-versus-the-api-gateway-pattern
    confidence: medium
  - id: fact-api-gateway-3
    statement: >-
      AWS API Gateway documentation describes API Gateway as a service for creating, publishing,
      maintaining, monitoring, and securing APIs.
    source_title: 'AWS Documentation: What is Amazon API Gateway?'
    source_url: https://docs.aws.amazon.com/apigateway/latest/developerguide/welcome.html
    confidence: medium
completeness: 0.86
known_gaps:
  - This compact repair keeps only source-mapped public claims from the sampled audit entry.
disputed_statements: []
primary_sources:
  - title: 'Microsoft Learn: API Gateway Pattern'
    type: documentation
    year: 2026
    url: >-
      https://learn.microsoft.com/en-us/dotnet/architecture/microservices/architect-microservice-container-applications/direct-client-to-microservice-communication-versus-the-api-gateway-pattern
    institution: Microsoft
  - title: 'AWS Documentation: What is Amazon API Gateway?'
    type: documentation
    year: 2026
    url: https://docs.aws.amazon.com/apigateway/latest/developerguide/welcome.html
    institution: Amazon Web Services
secondary_sources: []
updated: '2026-05-28'
---

## TL;DR

An API gateway sits at the edge of a service architecture to route, protect, and manage API traffic.

## Core Explanation

This repair removes homepage, future survey, and unrelated gateway papers. Public claims now map to Microsoft and AWS API Gateway documentation.

## Further Reading

- [Microsoft Learn: API Gateway Pattern](https://learn.microsoft.com/en-us/dotnet/architecture/microservices/architect-microservice-container-applications/direct-client-to-microservice-communication-versus-the-api-gateway-pattern)
- [AWS Documentation: What is Amazon API Gateway?](https://docs.aws.amazon.com/apigateway/latest/developerguide/welcome.html)