wasmCloud website screenshot

wasmCloud

wasmCloud is a CNCF incubating platform for building, managing, and scaling distributed applications using WebAssembly components. It provides a runtime that manages the lifecycle of WebAssembly actors and capability providers, enabling developers to write portable business logic that connects to infrastructure capabilities like HTTP servers, messaging, key-value stores, and databases through a declarative linking model based on WebAssembly Interface Types (WIT).

5 APIs 0 Features
Cloud NativeCNCFDistributed SystemsIncubatingRuntimeWasmWebAssemblyWIT

APIs

wasmCloud Control Interface API

The wasmCloud control interface provides a NATS-based API for managing the wasmCloud lattice. It supports operations for starting and stopping actors and providers, establishing...

wasmCloud Application Deployment Manager (wadm) API

wadm provides a declarative application deployment API for wasmCloud. Applications are defined as YAML manifests specifying components, capability providers, and their links. wa...

wasmCloud wash CLI

wash (WAsmcloud SHell) is the comprehensive command-line tool for developing, building, deploying, and managing wasmCloud applications and WebAssembly components. It bundles a w...

wasmCloud WIT Interfaces

wasmCloud interfaces are defined using WebAssembly Interface Type (WIT), the open standard interface description language maintained as part of the W3C WebAssembly Component Mod...

wasmCloud Kubernetes Operator

The wasmCloud Kubernetes Operator enables running wasmCloud infrastructure natively on Kubernetes clusters. It deploys wasmCloud hosts as Kubernetes workloads and bridges the Ku...

Pricing Plans

Wasmcloud Plans Pricing

3 plans

PLANS

Rate Limits

Wasmcloud Rate Limits

5 limits

RATE LIMITS

FinOps

Event Specifications

wasmCloud Control Interface API

AsyncAPI specification for the wasmCloud Control Interface, a NATS-based API for managing the wasmCloud lattice. Operators and tooling (wash CLI, wasmCloud dashboard, wadm) inte...

ASYNCAPI

wasmCloud Lattice Events

The wasmCloud lattice event system publishes CloudEvents-format messages to NATS subjects describing the lifecycle of components, capability providers, links, and hosts within a...

ASYNCAPI

wasmCloud wadm Application Deployment Manager API

The wasmCloud Application Deployment Manager (wadm) API is exposed entirely as a NATS service using a subject-per-operation model. All API requests and responses are JSON-encode...

ASYNCAPI

Semantic Vocabularies

Wasmcloud Context

8 classes · 35 properties

JSON-LD

JSON Structure

Wasmcloud Oam Manifest Structure

0 properties

JSON STRUCTURE

Example Payloads

Kubernetes CRDs

runtime.wasmcloud.dev artifacts

CRD

runtime.wasmcloud.dev hosts

CRD

runtime.wasmcloud.dev workloaddeployments

CRD

runtime.wasmcloud.dev workloadreplicasets

CRD

runtime.wasmcloud.dev workloads

CRD

Resources

🔗
LinkedIn
LinkedIn
🔗
Website
Website
🔗
Documentation
Documentation
🚀
GettingStarted
GettingStarted
📰
Blog
Blog
🔗
Community
Community
👥
GitHubOrganization
GitHubOrganization
👥
GitHubRepository
GitHubRepository
📄
ChangeLog
ChangeLog
🔗
Slack
Slack
🔗
AsyncAPI
AsyncAPI
🔗
AsyncAPI
AsyncAPI
🔗
AsyncAPI
AsyncAPI
🔗
JSONSchema
JSONSchema
🔗
JSONSchema
JSONSchema
🔗
JSONLD
JSONLD
🔗
JSONStructure
JSONStructure
🔗
Vocabulary
Vocabulary
🔗
KubernetesCRD
KubernetesCRD
🔗
KubernetesCRD
KubernetesCRD
🔗
KubernetesCRD
KubernetesCRD
🔗
KubernetesCRD
KubernetesCRD
🔗
KubernetesCRD
KubernetesCRD
🔗
LlmsText
LlmsText

Sources

Raw ↑
aid: wasmcloud
name: wasmCloud
description: wasmCloud is a CNCF incubating platform for building, managing, and scaling distributed applications using WebAssembly
  components. It provides a runtime that manages the lifecycle of WebAssembly actors and capability providers, enabling developers
  to write portable business logic that connects to infrastructure capabilities like HTTP servers, messaging, key-value stores,
  and databases through a declarative linking model based on WebAssembly Interface Types (WIT).
url: https://wasmcloud.com
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Cloud Native
- CNCF
- Distributed Systems
- Incubating
- Runtime
- Wasm
- WebAssembly
- WIT
created: '2026-03-16'
modified: '2026-05-03'
specificationVersion: '0.19'
type: Index
apis:
- aid: wasmcloud:wasmcloud-control-api
  name: wasmCloud Control Interface API
  description: The wasmCloud control interface provides a NATS-based API for managing the wasmCloud lattice. It supports operations
    for starting and stopping actors and providers, establishing links between components, querying host inventories, and
    managing application deployments. The wash CLI and wasmCloud dashboard interact with hosts through this interface.
  humanURL: https://wasmcloud.com/docs/hosts/lattice-protocols/control-interface/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmcloud.com/docs/hosts/lattice-protocols/control-interface/
  - type: Reference
    url: https://wasmcloud.com/docs/concepts/
  - type: AsyncAPI
    url: asyncapi/wasmcloud-control-asyncapi.yml
  - type: AsyncAPI
    url: asyncapi/wasmcloud-lattice-events-asyncapi.yml
  tags:
  - Control API
  - Lattice Management
  - NATS
- aid: wasmcloud:wasmcloud-wadm-api
  name: wasmCloud Application Deployment Manager (wadm) API
  description: wadm provides a declarative application deployment API for wasmCloud. Applications are defined as YAML manifests
    specifying components, capability providers, and their links. wadm manages the desired state of applications across the
    lattice, handling scaling, updates, and self-healing through reconciliation loops using the Open Application Model format.
  humanURL: https://wasmcloud.com/docs/ecosystem/wadm/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmcloud.com/docs/ecosystem/wadm/
  - type: Reference
    url: https://wasmcloud.com/docs/ecosystem/wadm/api/
  - type: GitHubRepository
    url: https://github.com/wasmCloud/wadm
  - type: JSONSchema
    url: json-schema/wasmcloud-manifest-schema.json
  - type: AsyncAPI
    url: asyncapi/wasmcloud-wadm-asyncapi.yml
  - type: JSONSchema
    url: json-schema/wasmcloud-oam-manifest-schema.json
  tags:
  - Application Management
  - Declarative
  - Deployment
  - OAM
- aid: wasmcloud:wasmcloud-wash-cli
  name: wasmCloud wash CLI
  description: wash (WAsmcloud SHell) is the comprehensive command-line tool for developing, building, deploying, and managing
    wasmCloud applications and WebAssembly components. It bundles a wasmCloud host, NATS server, and wadm for local development,
    and supports publishing components to OCI registries and managing remote lattices.
  humanURL: https://wasmcloud.com/docs/cli/wash/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmcloud.com/docs/cli/wash/
  - type: GettingStarted
    url: https://wasmcloud.com/docs/getting-started/
  - type: GitHubRepository
    url: https://github.com/wasmCloud/wash
  - type: ChangeLog
    url: https://github.com/wasmCloud/wash/releases
  tags:
  - CLI
  - Developer Tools
  - WebAssembly
- aid: wasmcloud:wasmcloud-interfaces
  name: wasmCloud WIT Interfaces
  description: wasmCloud interfaces are defined using WebAssembly Interface Type (WIT), the open standard interface description
    language maintained as part of the W3C WebAssembly Component Model. wasmCloud supports WASI 0.2 interfaces as well as
    wasmCloud-specific interfaces for capability providers covering HTTP, messaging, key-value, blobstore, and other infrastructure
    concerns.
  humanURL: https://wasmcloud.com/docs/concepts/interfaces/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmcloud.com/docs/concepts/interfaces/
  - type: Reference
    url: https://wasmcloud.com/docs/reference/wasi/support/
  - type: GitHubRepository
    url: https://github.com/wasmCloud/wasmCloud
  tags:
  - Interfaces
  - WASI
  - WebAssembly
  - WIT
- aid: wasmcloud:wasmcloud-kubernetes-operator
  name: wasmCloud Kubernetes Operator
  description: The wasmCloud Kubernetes Operator enables running wasmCloud infrastructure natively on Kubernetes clusters.
    It deploys wasmCloud hosts as Kubernetes workloads and bridges the Kubernetes control plane with the wasmCloud lattice,
    enabling seamless integration with existing Kubernetes tooling and GitOps workflows. Defines CRDs for Hosts, Artifacts,
    Workloads, WorkloadDeploments, and WorkloadReplicaSets under the runtime.wasmcloud.dev group.
  humanURL: https://wasmcloud.com/docs/deployment/k8s/
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  properties:
  - type: Documentation
    url: https://wasmcloud.com/docs/deployment/k8s/
  - type: GitHubRepository
    url: https://github.com/wasmCloud/wasmcloud-operator
  - type: KubernetesCRD
    url: crd/runtime.wasmcloud.dev_hosts.yaml
  - type: KubernetesCRD
    url: crd/runtime.wasmcloud.dev_artifacts.yaml
  - type: KubernetesCRD
    url: crd/runtime.wasmcloud.dev_workloads.yaml
  - type: KubernetesCRD
    url: crd/runtime.wasmcloud.dev_workloaddeployments.yaml
  - type: KubernetesCRD
    url: crd/runtime.wasmcloud.dev_workloadreplicasets.yaml
  tags:
  - Kubernetes
  - Operator
  - Deployment
common:
- type: LinkedIn
  url: https://www.linkedin.com/company/wasmcloud
- type: Website
  url: https://wasmcloud.com
- type: Documentation
  url: https://wasmcloud.com/docs/
- type: GettingStarted
  url: https://wasmcloud.com/docs/getting-started/
- type: Blog
  url: https://wasmcloud.com/blog/
- type: Community
  url: https://wasmcloud.com/community/
- type: GitHubOrganization
  url: https://github.com/wasmCloud
- type: GitHubRepository
  url: https://github.com/wasmCloud/wasmCloud
- type: ChangeLog
  url: https://github.com/wasmcloud/wasmcloud/releases
- type: Slack
  url: https://slack.wasmcloud.com/
- type: AsyncAPI
  url: asyncapi/wasmcloud-control-asyncapi.yml
- type: AsyncAPI
  url: asyncapi/wasmcloud-wadm-asyncapi.yml
- type: AsyncAPI
  url: asyncapi/wasmcloud-lattice-events-asyncapi.yml
- type: JSONSchema
  url: json-schema/wasmcloud-manifest-schema.json
- type: JSONSchema
  url: json-schema/wasmcloud-oam-manifest-schema.json
- type: JSONLD
  url: json-ld/wasmcloud-context.jsonld
- type: JSONStructure
  url: json-structure/wasmcloud-oam-manifest-structure.json
- type: Vocabulary
  url: vocabulary/wasmcloud-vocabulary.yml
- type: KubernetesCRD
  url: crd/runtime.wasmcloud.dev_hosts.yaml
- type: KubernetesCRD
  url: crd/runtime.wasmcloud.dev_artifacts.yaml
- type: KubernetesCRD
  url: crd/runtime.wasmcloud.dev_workloads.yaml
- type: KubernetesCRD
  url: crd/runtime.wasmcloud.dev_workloaddeployments.yaml
- type: KubernetesCRD
  url: crd/runtime.wasmcloud.dev_workloadreplicasets.yaml
- type: LlmsText
  url: https://wasmcloud.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com