Etcd

aid: etcd
name: Etcd
description: etcd is a CNCF graduated distributed, reliable key-value store used as the backing store for all Kubernetes cluster
  data. It provides strong consistency guarantees using the Raft consensus algorithm, supporting watch operations, lease-based
  TTLs, and atomic compare-and-swap transactions. etcd is designed for high availability and stores critical configuration
  data for distributed systems.
url: https://etcd.io
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
  gated: none
  gated_source:
  - onboarding
  label: Free · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/etcd.png
tags:
- Cloud-Native
- Consensus
- Distributed Systems
- Graduated
- Key-Value Store
- Kubernetes
tags_raw:
- Cloud Native
- Consensus
- Distributed Systems
- Graduated
- Key-Value Store
- Kubernetes
created: '2026-03-16'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
apis:
- aid: etcd:etcd-grpc-api
  name: etcd gRPC API
  description: The etcd v3 API is a gRPC-based interface providing key-value operations (put, get, delete, range), watch streams
    for change notifications, lease management for TTL-based keys, cluster membership management, maintenance operations including
    snapshots and defragmentation, and authentication and authorization controls.
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  properties:
  - type: Documentation
    url: https://etcd.io/docs/v3.5/learning/api/
  - type: Reference
    url: https://etcd.io/docs/v3.5/learning/api_guarantees/
  - type: Authentication
    url: https://etcd.io/docs/v3.5/op-guide/authentication/
  - type: GettingStarted
    url: https://etcd.io/docs/v3.5/dev-guide/interacting_v3/
  - type: Client Libraries
    url: https://etcd.io/docs/v3.5/integrations/
  tags:
  - Cluster Management
  - gRPC
  - Key-Value Store
  - Lease
  - Watch
  tags_raw:
  - Cluster Management
  - gRPC
  - Key-Value
  - Lease
  - Watch
- aid: etcd:etcd-concurrency-api
  name: etcd Concurrency API
  description: The etcd concurrency API provides distributed primitives built on top of the core key-value store, including
    distributed mutexes (locks), leader election, and software transactional memory (STM). These primitives are used to coordinate
    between distributed processes and implement consensus patterns in clustered applications.
  humanURL: https://etcd.io/docs/v3.5/dev-guide/api_concurrency_reference_v3/
  properties:
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_concurrency_reference_v3/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_concurrency_reference_v3/
  tags:
  - Concurrency
  - Coordination
  - Distributed Locking
  - Leader Election
- aid: etcd:etcd-metrics-api
  name: etcd Metrics API
  description: etcd exposes a Prometheus-compatible metrics endpoint that provides operational insights into the etcd cluster,
    including request rates, latency histograms, disk I/O statistics, Raft state, and cluster health indicators. This endpoint
    is used for monitoring and alerting in production etcd deployments.
  humanURL: https://etcd.io/docs/v3.5/op-guide/monitoring/
  properties:
  - type: Documentation
    url: https://etcd.io/docs/v3.5/op-guide/monitoring/
  - type: Reference
    url: https://etcd.io/docs/v3.5/metrics/
  tags:
  - Metrics
  - Monitoring
  - Observability
  - Prometheus
- aid: etcd:etcd-v2-api
  name: etcd v2 HTTP API
  description: The original etcd v2 API exposed a RESTful HTTP interface for key-value operations using a hierarchical directory
    structure. This API has been deprecated in favor of the v3 gRPC API and was removed from the default etcd build in later
    versions. Existing users should migrate to the v3 API.
  humanURL: https://etcd.io/docs/v2.3/api/
  properties:
  - type: Documentation
    url: https://etcd.io/docs/v2.3/api/
  - type: Deprecation Notice
    url: https://etcd.io/docs/v3.5/op-guide/v2-migration/
  - type: Migration Guide
    url: https://etcd.io/docs/v3.5/op-guide/v2-migration/
  tags:
  - Deprecated
  - HTTP
  - Key-Value Store
  - REST
  tags_raw:
  - Deprecated
  - HTTP
  - Key-Value
  - REST
- aid: etcd:etcd-auth-api
  name: Etcd Auth API
  description: Authentication and authorization management for users and roles
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - Authentication
  tags_raw:
  - Auth
  properties:
  - type: OpenAPI
    url: openapi/etcd-auth-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
- aid: etcd:etcd-cluster-api
  name: Etcd Cluster API
  description: Cluster membership management including member add, remove, and list
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - Cluster
  properties:
  - type: OpenAPI
    url: openapi/etcd-cluster-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
- aid: etcd:etcd-kv-api
  name: Etcd KV API
  description: Key-value store operations including put, get, delete, and range queries
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - KV
  properties:
  - type: OpenAPI
    url: openapi/etcd-kv-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
- aid: etcd:etcd-lease-api
  name: Etcd Lease API
  description: Lease management for TTL-based key expiration
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - Lease
  properties:
  - type: OpenAPI
    url: openapi/etcd-lease-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
- aid: etcd:etcd-maintenance-api
  name: Etcd Maintenance API
  description: Maintenance operations including snapshots, defragmentation, and status
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - Maintenance
  properties:
  - type: OpenAPI
    url: openapi/etcd-maintenance-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
- aid: etcd:etcd-watch-api
  name: Etcd Watch API
  description: Watch operations for streaming key change notifications
  humanURL: https://etcd.io/docs/v3.5/learning/api/
  tags:
  - Watch
  properties:
  - type: OpenAPI
    url: openapi/etcd-watch-api-openapi.yml
  - type: Documentation
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
  - type: Reference
    url: https://etcd.io/docs/v3.5/dev-guide/api_grpc_gateway/
common:
- type: Plans
  url: plans/etcd-plans-pricing.yml
- type: RateLimits
  url: rate-limits/etcd-rate-limits.yml
- type: FinOps
  url: finops/etcd-finops.yml
- type: CapabilityMap
  url: capabilities/etcd-capability-edges.yml
  name: Etcd Business Capability Map
- type: IssueTracker
  url: https://github.com/etcd-io/etcd/issues
- type: Releases
  url: https://github.com/etcd-io/etcd/releases
- type: SecurityPolicy
  url: https://github.com/etcd-io/etcd/blob/main/.github/SECURITY.md
- type: CodeOfConduct
  url: https://github.com/etcd-io/etcd/blob/main/code-of-conduct.md
- type: ContributionGuide
  url: https://github.com/etcd-io/etcd/blob/main/CONTRIBUTING.md
- type: License
  name: Apache-2.0
  url: https://github.com/etcd-io/etcd/blob/main/LICENSE
- type: AgenticAccess
  url: agentic-access/etcd-agentic-access.yml
- type: DomainSecurity
  url: security/etcd-domain-security.yml
- type: Authentication
  url: authentication/etcd-authentication.yml
- type: JSONSchema
  url: json-schema/etcd-key-value-schema.json
- type: JSONLD
  url: json-ld/etcd-context.jsonld
- type: Website
  name: etcd Website
  description: Official etcd project website.
  url: https://etcd.io
- type: Documentation
  name: etcd Documentation
  description: Official etcd documentation.
  url: https://etcd.io/docs/
- type: GettingStarted
  name: etcd Getting Started
  description: Guide to installing and using etcd for the first time.
  url: https://etcd.io/docs/v3.5/quickstart/
- type: GitHubOrganization
  name: etcd GitHub Organization
  description: Source code and related repositories for the etcd project.
  url: https://github.com/etcd-io
- type: GitHubRepository
  name: etcd GitHub Repository
  description: Main etcd source code repository.
  url: https://github.com/etcd-io/etcd
- type: Blog
  name: etcd Blog
  description: Project blog and announcements.
  url: https://etcd.io/blog/
- type: Community
  name: etcd Community
  description: Community resources and contribution guidelines for the etcd project.
  url: https://etcd.io/community/
- type: ChangeLog
  name: etcd Changelog
  description: Release notes and version history for etcd.
  url: https://github.com/etcd-io/etcd/blob/main/CHANGELOG/
- type: Security
  name: etcd Security
  description: Security disclosure policy and advisories for etcd.
  url: https://github.com/etcd-io/etcd/blob/main/security/SECURITY.md
- type: Support
  name: etcd Support
  description: Community support channels including mailing lists and Slack.
  url: https://etcd.io/community/
- type: StackOverflow
  name: etcd Stack Overflow
  description: etcd-tagged questions and answers on Stack Overflow.
  url: https://stackoverflow.com/questions/tagged/etcd
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com