Apache Storm

Apache Storm is a free and open-source distributed real-time computation system that makes it easy to reliably process unbounded streams of data at scale. It provides a simple programming model (topologies with spouts and bolts), guaranteed message processing, horizontal scalability, and fault tolerance. Storm integrates with queuing and database technologies including Apache Kafka and Apache Cassandra and is governed by the Apache Software Foundation.

Apache Storm publishes 9 APIs on the APIs.io network, including Topology API, Cluster API, Drpc API, and 6 more. Tagged areas include Distributed Computing, Event Processing, Real-Time, Stream Processing, and Open Source.

Apache Storm’s developer surface includes documentation, developer portal, getting-started guide, release notes, support, engineering blog, and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub

38.1/100 thin ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemium

9 APIs 6 Features 4 Use Cases

Distributed ComputingEvent ProcessingReal-TimeStream ProcessingOpen Source

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 38.1/100 · thin

Contract Quality 8.5 / 25

Developer Ergonomics 7.0 / 20

Commercial Clarity 10.0 / 20

Operational Transparency 6.2 / 13

Governance 0.0 / 12

Discoverability 6.5 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 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/apache-storm: 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 9

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

Rate Limits 1

Documented rate limits and quota policies.

Apache Storm Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Apache Storm Finops

FINOPS

Features 6

Notable capabilities this provider offers.

Guaranteed Message Processing

At-least-once processing guarantees through ack/fail tracking mechanism.

Scalable Topologies

Horizontally scalable stream processing topologies with configurable parallelism.

Trident API

High-level micro-batch processing abstraction with stateful streaming and exactly-once semantics.

DRPC

Distributed Remote Procedure Calls for synchronous distributed computation.

Windowing Operations

Tumbling and sliding window processing over bounded time or count windows.

Multi-Language Support

Topology components written in Java, Python, Ruby, and other languages via Multilang protocol.

AGENTIC

Use Cases 4

What developers build with this provider.

Real-Time Analytics

Continuous computation over live event streams for operational dashboards.

ETL Processing

Real-time data transformation and enrichment pipelines.

Machine Learning Scoring

Online scoring of ML models against streaming feature data.

Fraud Detection

Low-latency fraud detection rules applied to transaction streams.

Integrations 5

Pre-built integrations with other platforms and tools.

Apache Kafka

Kafka Spout for consuming messages from Kafka topics as Storm data sources.

Apache Cassandra

CassandraBolt for writing processed stream data to Cassandra.

Apache Hive

HiveBolt for streaming inserts into Apache Hive tables.

Redis

Redis integration for stateful lookups and caching in Storm bolts.

Elasticsearch

ElasticsearchBolt for indexing stream data into Elasticsearch.

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubRepository

GitHubRepository

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

ReleaseNotes

ReleaseNotes

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Company 1

The organization behind the API

Blog

Blog

Source (apis.yml)

aid: apache-storm
name: Apache Storm
description: Apache Storm is a free and open-source distributed real-time computation system that makes it easy to reliably
  process unbounded streams of data at scale. It provides a simple programming model (topologies with spouts and bolts), guaranteed
  message processing, horizontal scalability, and fault tolerance. Storm integrates with queuing and database technologies
  including Apache Kafka and Apache Cassandra and is governed by the Apache Software Foundation.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/apache-storm.png
tags:
- Distributed Computing
- Event Processing
- Real-Time
- Stream Processing
- Open Source
created: '2026-03-16'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/apache-storm/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: apache-storm:apache-storm-topology-api
  name: Apache Storm Topology API
  description: The Storm Topology API provides Java and other language bindings for building real-time processing topologies
    composed of spouts (data sources) and bolts (processing units). It supports various stream groupings, windowing operations,
    Trident micro-batch processing, and DRPC (Distributed Remote Procedure Calls) for synchronous request/response patterns.
  humanURL: https://storm.apache.org/documentation/Tutorial.html
  tags:
  - Java
  - Topology
  - Streaming
  - Processing
  properties:
  - type: Documentation
    url: https://storm.apache.org/documentation/Tutorial.html
  - type: SDKs
    url: https://search.maven.org/search?q=org.apache.storm
    title: Maven Java SDK
- aid: apache-storm:apache-storm-cluster-api
  name: Apache Storm Cluster API
  description: The Cluster API from Apache Storm — 2 operation(s) for cluster.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Cluster
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-cluster-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-drpc-api
  name: Apache Storm Drpc API
  description: The Drpc API from Apache Storm — 2 operation(s) for drpc.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Drpc
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-drpc-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-history-api
  name: Apache Storm History API
  description: The History API from Apache Storm — 1 operation(s) for history.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - History
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-history-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-nimbus-api
  name: Apache Storm Nimbus API
  description: The Nimbus API from Apache Storm — 1 operation(s) for nimbus.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Nimbus
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-nimbus-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-owner-resources-api
  name: Apache Storm Owner Resources API
  description: The Owner Resources API from Apache Storm — 1 operation(s) for owner resources.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Owner Resources
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-owner-resources-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-supervisor-api
  name: Apache Storm Supervisor API
  description: The Supervisor API from Apache Storm — 2 operation(s) for supervisor.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Supervisor
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-supervisor-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-topology-api
  name: Apache Storm Topology API
  description: The Topology API from Apache Storm — 14 operation(s) for topology.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Topology
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-topology-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
- aid: apache-storm:apache-storm-topology-workers-api
  name: Apache Storm Topology Workers API
  description: The Topology Workers API from Apache Storm — 1 operation(s) for topology workers.
  humanURL: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
  tags:
  - Topology Workers
  properties:
  - type: OpenAPI
    url: openapi/apache-storm-topology-workers-api-openapi.yml
  - type: Documentation
    url: https://storm.apache.org/releases/current/STORM-UI-REST-API.html
common:
- type: AgenticAccess
  url: agentic-access/apache-storm-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/apache-storm-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/apache-storm-domain-security.yml
- type: GitHubRepository
  url: https://github.com/apache/storm
- type: Documentation
  url: https://storm.apache.org/documentation/Home.html
- type: Portal
  url: https://storm.apache.org/
- type: GettingStarted
  url: https://storm.apache.org/releases/current/Setting-up-development-environment.html
- type: ReleaseNotes
  url: https://github.com/apache/storm/releases
- type: Support
  url: https://storm.apache.org/contribute/People.html
- type: TermsOfService
  url: https://www.apache.org/licenses/
- type: Features
  data:
  - name: Guaranteed Message Processing
    description: At-least-once processing guarantees through ack/fail tracking mechanism.
  - name: Scalable Topologies
    description: Horizontally scalable stream processing topologies with configurable parallelism.
  - name: Trident API
    description: High-level micro-batch processing abstraction with stateful streaming and exactly-once semantics.
  - name: DRPC
    description: Distributed Remote Procedure Calls for synchronous distributed computation.
  - name: Windowing Operations
    description: Tumbling and sliding window processing over bounded time or count windows.
  - name: Multi-Language Support
    description: Topology components written in Java, Python, Ruby, and other languages via Multilang protocol.
- type: UseCases
  data:
  - name: Real-Time Analytics
    description: Continuous computation over live event streams for operational dashboards.
  - name: ETL Processing
    description: Real-time data transformation and enrichment pipelines.
  - name: Machine Learning Scoring
    description: Online scoring of ML models against streaming feature data.
  - name: Fraud Detection
    description: Low-latency fraud detection rules applied to transaction streams.
- type: Integrations
  data:
  - name: Apache Kafka
    description: Kafka Spout for consuming messages from Kafka topics as Storm data sources.
  - name: Apache Cassandra
    description: CassandraBolt for writing processed stream data to Cassandra.
  - name: Apache Hive
    description: HiveBolt for streaming inserts into Apache Hive tables.
  - name: Redis
    description: Redis integration for stateful lookups and caching in Storm bolts.
  - name: Elasticsearch
    description: ElasticsearchBolt for indexing stream data into Elasticsearch.
- type: Blog
  url: https://storm.apache.org/index.html
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com