KEDA

KEDA (Kubernetes Event Driven Autoscaling) is a CNCF graduated application autoscaler that drives scaling of any container in Kubernetes based on the number of events needing to be processed. It extends Kubernetes with custom resources for defining scaling behavior and supports over 50 built-in scalers for event sources including Kafka, RabbitMQ, AWS SQS, Azure Service Bus, and Prometheus.

KEDA publishes 2 APIs on the APIs.io network: Metrics API and CloudEventSource API. Tagged areas include Auto-Scaling, CNCF, Event-Driven, Graduated, and Kubernetes.

The KEDA catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.

KEDA’s developer surface includes authentication, documentation, getting-started guide, engineering blog, changelog, Stack Overflow tag, and 17 more developer resources.

🌐 Visit website 📡 Source on GitHub

48.1/100 developing ▬ flat Agent 30/100 agent ready self hosted · Apache-2.0 Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreeSelf serve⚡ Free to try

5 APIs

Auto-Scaling CNCF Event-Driven Graduated Kubernetes

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 48.1/100 · developing

Contract Quality 16.3 / 23

Developer Ergonomics 8.1 / 18

Access Clarity 2.4 / 18

Operational Transparency 4.0 / 12

Contract Governance 1.5 / 11

Discoverability 5.8 / 9

Open Source Surface 10.0 / 10

Agent readiness — 30/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against it.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 90 points between them, because the conditional facet above carries the other 10. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 90% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/keda: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 5

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

KEDA Metrics API

External metrics API server that exposes event-driven metrics from configured scalers to the Kubernetes Horizontal Pod Autoscaler. It implements the Kubernetes external metrics ...

KEDA ScaledObject API

The ScaledObject custom resource defines the mapping between an event source and a Kubernetes Deployment, StatefulSet, or custom resource that should be scaled based on event me...

KEDA ScaledJob API

The ScaledJob custom resource defines the mapping between an event source and Kubernetes Jobs that should be created in response to events. Unlike ScaledObject, ScaledJob create...

KEDA TriggerAuthentication API

The TriggerAuthentication and ClusterTriggerAuthentication custom resources define authentication parameters for KEDA trigger scalers, allowing credentials to be sourced from Ku...

KEDA CloudEventSource API

The CloudEventSource and ClusterCloudEventSource custom resources define HTTP or Azure Event Grid destinations where KEDA delivers CloudEvents when scaling events occur. Events ...

Open Collections 2

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

API Collection

OPEN COLLECTION

KEDA Metrics API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Keda Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Keda Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Keda Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

KEDA CloudEvent Source

KEDA emits CloudEvents to configured HTTP or Azure Event Grid destinations when scaling events occur. The CloudEventSource and ClusterCloudEventSource custom resources define th...

ASYNCAPI

Semantic Vocabularies 1

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

Keda Context

0 classes · 27 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

KEDA API Rules

7 rules · 1 errors 6 warnings

SPECTRAL

KEDA API Rules

6 rules · 4 warnings 2 info

SPECTRAL

JSON Schema 2

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

KEDA CloudEvent

8 properties

JSON SCHEMA

KEDA ScaledObject

5 properties

JSON SCHEMA

Security Posture 2

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

Keda Authentication

apiKey/http · 3 schemes

SECURITY

Keda Domain Security

TLSv1.3 · HSTS

SECURITY

Agentic Access 1

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

Keda Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 4

Reference material describing how the API behaves

ContributionGuide

Documentation

JSONSchema

JSONSchema

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

JSONLD

JSONLD

Build 3

SDKs, sample code, and the tooling you integrate with

CodeOfConduct

CodeOfConduct

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Security

Security

Operate 6

Status, limits, changes, and where to get help

IssueTracker

Releases

Community

Slack

ChangeLog

StackOverflow

Commercial 1

Pricing, plans, and the legal terms of use

License

License

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: keda
name: KEDA
description: KEDA (Kubernetes Event Driven Autoscaling) is a CNCF graduated application autoscaler that drives scaling of
  any container in Kubernetes based on the number of events needing to be processed. It extends Kubernetes with custom resources
  for defining scaling behavior and supports over 50 built-in scalers for event sources including Kafka, RabbitMQ, AWS SQS,
  Azure Service Bus, and Prometheus.
type: Index
deliveryModel:
  model: self-hosted
  license: Apache-2.0
  open_source: true
  commercial: false
  callable_host: false
  label: Self-hosted open source · you run it yourself
  confidence: high
  source:
  - license
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/keda.png
tags:
- Auto-Scaling
- CNCF
- Event-Driven
- Graduated
- Kubernetes
tags_raw:
- Autoscaling
- CNCF
- Event-Driven
- Graduated
- Kubernetes
url: https://raw.githubusercontent.com/api-evangelist/keda/refs/heads/main/apis.yml
created: '2025-01-01'
modified: '2026-05-19'
specificationVersion: '0.23'
apis:
- aid: keda:keda-metrics-api
  name: KEDA Metrics API
  description: External metrics API server that exposes event-driven metrics from configured scalers to the Kubernetes Horizontal
    Pod Autoscaler. It implements the Kubernetes external metrics API interface, allowing the HPA controller to query scaler-derived
    metrics when making scaling decisions.
  humanURL: https://keda.sh/docs/latest/operate/metrics-server/
  tags:
  - External Metrics
  - HPA
  - Kubernetes
  - Metrics
  properties:
  - type: Documentation
    url: https://keda.sh/docs/latest/operate/metrics-server/
  - type: GettingStarted
    url: https://keda.sh/docs/latest/deploy/
  - type: Reference
    url: https://keda.sh/docs/latest/concepts/
  - type: OpenAPI
    url: openapi/keda-metrics-api-openapi.yml
- aid: keda:keda-scaled-object-api
  name: KEDA ScaledObject API
  description: The ScaledObject custom resource defines the mapping between an event source and a Kubernetes Deployment, StatefulSet,
    or custom resource that should be scaled based on event metrics. It specifies trigger scalers, scaling thresholds, min/max
    replica counts, and cooldown periods for workload-based autoscaling.
  humanURL: https://keda.sh/docs/latest/concepts/scaling-deployments/
  tags:
  - Auto-Scaling
  - CRD
  - Kubernetes
  - ScaledObject
  tags_raw:
  - Autoscaling
  - CRD
  - Kubernetes
  - ScaledObject
  properties:
  - type: Documentation
    url: https://keda.sh/docs/latest/concepts/scaling-deployments/
  - type: JSONSchema
    url: scaled-object.json
  - type: JSONSchema
    url: json-schema/keda-scaled-object-schema.json
  - type: JSONLD
    url: keda-context.jsonld
  - type: Reference
    url: https://keda.sh/docs/latest/reference/scaledobject-spec/
- aid: keda:keda-scaled-job-api
  name: KEDA ScaledJob API
  description: The ScaledJob custom resource defines the mapping between an event source and Kubernetes Jobs that should be
    created in response to events. Unlike ScaledObject, ScaledJob creates new Job instances to process each unit of work rather
    than scaling existing long-running deployments, making it suited for batch workloads.
  humanURL: https://keda.sh/docs/latest/concepts/scaling-jobs/
  tags:
  - Auto-Scaling
  - CRD
  - Job
  - Kubernetes
  tags_raw:
  - Autoscaling
  - CRD
  - Jobs
  - Kubernetes
  properties:
  - type: Documentation
    url: https://keda.sh/docs/latest/concepts/scaling-jobs/
  - type: JSONSchema
    url: scaled-job.json
  - type: JSONLD
    url: keda-context.jsonld
  - type: Reference
    url: https://keda.sh/docs/latest/reference/scaledjob-spec/
- aid: keda:keda-trigger-authentication-api
  name: KEDA TriggerAuthentication API
  description: The TriggerAuthentication and ClusterTriggerAuthentication custom resources define authentication parameters
    for KEDA trigger scalers, allowing credentials to be sourced from Kubernetes Secrets, environment variables, pod identity
    providers such as AWS IRSA or Azure Workload Identity, or HashiCorp Vault without embedding them in the ScaledObject.
  humanURL: https://keda.sh/docs/latest/concepts/authentication/
  tags:
  - Authentication
  - CRD
  - Kubernetes
  - Security
  properties:
  - type: Documentation
    url: https://keda.sh/docs/latest/concepts/authentication/
  - type: JSONSchema
    url: trigger-authentication.json
  - type: JSONLD
    url: keda-context.jsonld
  - type: Reference
    url: https://keda.sh/docs/latest/reference/triggerauthentication-spec/
- aid: keda:keda-cloud-event-source-api
  name: KEDA CloudEventSource API
  description: The CloudEventSource and ClusterCloudEventSource custom resources define HTTP or Azure Event Grid destinations
    where KEDA delivers CloudEvents when scaling events occur. Events follow the CloudEvents specification v1.0 and carry
    reason codes and messages for events such as ScalerError, ScaledObjectReady, ScaledObjectDeleted, and AuthenticationFailed.
    Optional event type filters allow consumers to subscribe to only the events they care about.
  humanURL: https://keda.sh/docs/latest/operate/cloud-events/
  tags:
  - CloudEvents
  - CRD
  - Event
  - Kubernetes
  - Webhook
  tags_raw:
  - CloudEvents
  - CRD
  - Events
  - Kubernetes
  - Webhooks
  properties:
  - type: Documentation
    url: https://keda.sh/docs/latest/operate/cloud-events/
  - type: AsyncAPI
    url: asyncapi/keda-cloud-events-asyncapi.yml
  - type: JSONSchema
    url: json-schema/keda-cloud-event-schema.json
common:
- type: IssueTracker
  url: https://github.com/kedacore/keda/issues
- type: Releases
  url: https://github.com/kedacore/keda/releases
- type: CodeOfConduct
  url: https://github.com/kedacore/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/kedacore/keda/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/kedacore/keda/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/keda-agentic-access.yml
- type: DomainSecurity
  url: security/keda-domain-security.yml
- type: Authentication
  url: authentication/keda-authentication.yml
- type: Website
  url: https://keda.sh/
- type: Documentation
  url: https://keda.sh/docs/latest/
- type: GettingStarted
  url: https://keda.sh/docs/latest/deploy/
- type: GitHubOrganization
  url: https://github.com/kedacore
- type: GitHubRepository
  url: https://github.com/kedacore/keda
- type: Blog
  url: https://keda.sh/blog/
- type: Community
  url: https://keda.sh/community/
- type: Slack
  url: https://kubernetes.slack.com/archives/CKZJ36A5D
- type: ChangeLog
  url: https://github.com/kedacore/keda/blob/main/CHANGELOG.md
- type: Security
  url: https://github.com/kedacore/keda/blob/main/SECURITY.md
- type: StackOverflow
  url: https://stackoverflow.com/questions/tagged/keda
- type: JSONLD
  url: keda-context.jsonld
- type: JSONLD
  url: json-ld/keda-context.jsonld
- type: JSONSchema
  url: json-schema/keda-scaled-object-schema.json
- type: JSONSchema
  url: json-schema/keda-cloud-event-schema.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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