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Scalable Systems

A topic collection focused on APIs, tools, and platforms for designing and operating scalable distributed systems. Covers load balancing, auto-scaling, service discovery, distributed caching, message queues, and the cloud infrastructure APIs that enable systems to handle growth in data, traffic, and complexity. Relevant to site reliability engineers, infrastructure architects, and platform engineers responsible for operating high-scale production environments.

Scalable Systems publishes 1 API on the APIs.io network: ApplicationAutoScaling API. Tagged areas include Auto Scaling, Caching, Cloud Infrastructure, Distributed Systems, and High Availability.

The Scalable Systems catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Scalable Systems’ developer surface includes authentication, code examples, and 13 more developer resources.

46.1/100 developing ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumSelf serve⚡ Free to try
7 APIs
Auto ScalingCachingCloud InfrastructureDistributed SystemsHigh AvailabilityInfrastructureLoad BalancingMessage QueuesPlatform EngineeringScalable ArchitectureService Discovery

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 46.1/100 · developing
Contract Quality 17.2 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.1 / 13
Governance 8.3 / 12
Discoverability 6.5 / 10
Agent readiness — 32/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/scalable-systems: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 7

Individual APIs this provider publishes, each with its own machine-readable definition.

AWS Auto Scaling API

AWS Auto Scaling monitors applications and automatically adjusts capacity across multiple AWS resources including EC2, ECS, Lambda, DynamoDB, and Aurora. The API enables definin...

Redis REST API (Upstash)

Redis is the dominant distributed in-memory cache and data structure store used to reduce latency and database load in scalable systems. Upstash provides a serverless Redis-comp...

Consul API

HashiCorp Consul provides service discovery, health checking, key-value storage, and service mesh capabilities via a comprehensive REST API. Core component for service registry ...

etcd API

etcd is a strongly consistent, distributed key-value store used as the backing store for Kubernetes and many distributed systems. Its gRPC API provides atomic operations, watche...

Celery Flower API

Celery is a distributed task queue for Python applications. Flower is Celery's real-time monitoring tool that exposes an HTTP API for inspecting workers, tasks, queues, and sche...

NGINX Plus API

NGINX Plus provides an advanced REST API for runtime configuration and statistics of upstream server groups, virtual servers, and cache zones. Enables dynamic load balancer reco...

Scalable Systems ApplicationAutoScaling API

The ApplicationAutoScaling API from Scalable Systems — 1 operation(s) for applicationautoscaling.

Scroll for all 7

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Scalable Systems Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Scalable Systems Context

38 classes · 0 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Scalable Systems API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Load Balancer Configuration

10 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Scalable Systems Load Balancer Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Scalable Systems Authentication

apiKey · 1 scheme

SECURITY

Scalable Systems Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Scalable Systems Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Scalable Systems Agentic Access

1 operation · 1 acting · 1 human-in-the-loop

1 operations · 1 acting

AGENTIC

Resources

Documentation 6

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Source (apis.yml)

apis.yml Raw ↑
aid: scalable-systems
name: Scalable Systems
description: A topic collection focused on APIs, tools, and platforms for designing and operating scalable distributed systems.
  Covers load balancing, auto-scaling, service discovery, distributed caching, message queues, and the cloud infrastructure
  APIs that enable systems to handle growth in data, traffic, and complexity. Relevant to site reliability engineers, infrastructure
  architects, and platform engineers responsible for operating high-scale production environments.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/scalable-systems.png
tags:
- Auto Scaling
- Caching
- Cloud Infrastructure
- Distributed Systems
- High Availability
- Infrastructure
- Load Balancing
- Message Queues
- Platform Engineering
- Scalable Architecture
- Service Discovery
type: Index
created: '2025-01-15'
modified: '2026-05-02'
specificationVersion: '0.19'
apis:
- aid: scalable-systems:aws-autoscaling
  name: AWS Auto Scaling API
  description: AWS Auto Scaling monitors applications and automatically adjusts capacity across multiple AWS resources including
    EC2, ECS, Lambda, DynamoDB, and Aurora. The API enables defining scaling policies, target tracking, and scheduled scaling
    for systems that must respond to variable load.
  tags:
  - Auto Scaling
  - AWS
  - Cloud Infrastructure
  - Scalable Architecture
  humanURL: https://docs.aws.amazon.com/autoscaling/application/APIReference/Welcome.html
  properties:
  - type: Documentation
    url: https://docs.aws.amazon.com/autoscaling/application/APIReference/Welcome.html
- aid: scalable-systems:redis
  name: Redis REST API (Upstash)
  description: Redis is the dominant distributed in-memory cache and data structure store used to reduce latency and database
    load in scalable systems. Upstash provides a serverless Redis-compatible REST API for low-latency caching at scale.
  tags:
  - Caching
  - Distributed Systems
  - In-Memory
  - Low Latency
  humanURL: https://upstash.com/docs/redis/features/restapi
  properties:
  - type: Documentation
    url: https://upstash.com/docs/redis/features/restapi
  - type: GitHub
    url: https://github.com/redis/redis
- aid: scalable-systems:consul
  name: Consul API
  description: HashiCorp Consul provides service discovery, health checking, key-value storage, and service mesh capabilities
    via a comprehensive REST API. Core component for service registry and dynamic configuration in scalable distributed systems.
  tags:
  - Configuration Management
  - High Availability
  - Service Discovery
  - Service Mesh
  humanURL: https://developer.hashicorp.com/consul/api-docs
  properties:
  - type: Documentation
    url: https://developer.hashicorp.com/consul/api-docs
  - type: GitHub
    url: https://github.com/hashicorp/consul
- aid: scalable-systems:etcd
  name: etcd API
  description: etcd is a strongly consistent, distributed key-value store used as the backing store for Kubernetes and many
    distributed systems. Its gRPC API provides atomic operations, watches, leases, and transactions for distributed coordination
    and consensus.
  tags:
  - Configuration Management
  - Distributed Systems
  - High Availability
  - Kubernetes
  humanURL: https://etcd.io/docs/latest/learning/api/
  properties:
  - type: Documentation
    url: https://etcd.io/docs/latest/learning/api/
  - type: GitHub
    url: https://github.com/etcd-io/etcd
- aid: scalable-systems:celery
  name: Celery Flower API
  description: Celery is a distributed task queue for Python applications. Flower is Celery's real-time monitoring tool that
    exposes an HTTP API for inspecting workers, tasks, queues, and scheduled jobs in production systems.
  tags:
  - Asynchronous
  - Distributed Systems
  - Message Queues
  - Task Queue
  humanURL: https://flower.readthedocs.io/en/latest/api.html
  properties:
  - type: Documentation
    url: https://flower.readthedocs.io/en/latest/api.html
  - type: GitHub
    url: https://github.com/celery/celery
- aid: scalable-systems:nginx-plus
  name: NGINX Plus API
  description: NGINX Plus provides an advanced REST API for runtime configuration and statistics of upstream server groups,
    virtual servers, and cache zones. Enables dynamic load balancer reconfiguration and real-time traffic monitoring without
    reloads.
  tags:
  - HTTP
  - High Performance
  - Load Balancing
  - Traffic Management
  humanURL: https://nginx.org/en/docs/http/ngx_http_api_module.html
  properties:
  - type: Documentation
    url: https://nginx.org/en/docs/http/ngx_http_api_module.html
- aid: scalable-systems:scalable-systems-applicationautoscaling-api
  name: Scalable Systems ApplicationAutoScaling API
  description: The ApplicationAutoScaling API from Scalable Systems — 1 operation(s) for applicationautoscaling.
  humanURL: https://docs.aws.amazon.com/autoscaling/application/APIReference/Welcome.html
  tags:
  - ApplicationAutoScaling
  properties:
  - type: OpenAPI
    url: openapi/scalable-systems-applicationautoscaling-api-openapi.yml
  - type: Documentation
    url: https://www.haproxy.com/documentation/dataplaneapi/
  - type: GitHub
    url: https://github.com/haproxytech/dataplaneapi
  - type: Documentation
    url: https://www.rabbitmq.com/management.html
  - type: GitHub
    url: https://github.com/rabbitmq/rabbitmq-server
common:
- type: AgenticAccess
  url: agentic-access/scalable-systems-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/scalable-systems-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/scalable-systems-domain-security.yml
- type: Authentication
  url: authentication/scalable-systems-authentication.yml
- type: Guide
  url: https://www.nginx.com/resources/glossary/load-balancing/
  name: Load Balancing Explained
- type: Guide
  url: https://aws.amazon.com/autoscaling/features/
  name: AWS Auto Scaling Features
- type: Guide
  url: https://redis.io/docs/manual/scaling/
  name: Redis Scaling Guide
- type: Guide
  url: https://www.consul.io/use-cases/service-discovery-and-health-checking
  name: Service Discovery with Consul
- type: Guide
  url: https://geeksforgeeks.org/distributed-systems/what-is-scalable-system-in-distributed-system/
  name: Scalable Systems in Distributed Computing
- type: JSONSchema
  url: https://github.com/api-evangelist/scalable-systems/blob/main/json-schema/scalable-systems-load-balancer-schema.json
  name: Load Balancer JSON Schema
- type: JSONStructure
  url: https://github.com/api-evangelist/scalable-systems/blob/main/json-structure/scalable-systems-load-balancer-structure.json
  name: Load Balancer JSON Structure
- type: JSONLDContext
  url: https://github.com/api-evangelist/scalable-systems/blob/main/json-ld/scalable-systems-context.jsonld
  name: Scalable Systems JSON-LD Context
- type: Vocabulary
  url: https://github.com/api-evangelist/scalable-systems/blob/main/vocabulary/scalable-systems-vocabulary.yml
  name: Scalable Systems Vocabulary
- type: Examples
  url: https://github.com/api-evangelist/scalable-systems/blob/main/examples/scalable-systems-rabbitmq-queue-example.json
  name: RabbitMQ Queue Configuration Example
- type: Examples
  url: https://github.com/api-evangelist/scalable-systems/blob/main/examples/scalable-systems-consul-service-registration-example.json
  name: Consul Service Registration Example
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com