Spin

aid: spin
name: Spin
description: Spin is an open source framework by Fermyon for building and running fast, secure, and composable cloud microservices
  with WebAssembly. Spin provides a developer experience for creating event-driven serverless applications that compile to
  WebAssembly and run on any platform that supports the Spin runtime including local dev environments, Kubernetes (via SpinKube),
  and Fermyon Cloud.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Cloud Native
- Microservices
- Serverless
- WebAssembly
url: https://raw.githubusercontent.com/api-evangelist/spin/refs/heads/main/apis.yml
created: '2026-03-26'
modified: '2026-05-02'
specificationVersion: '0.19'
apis:
- aid: spin:spin-http-trigger-api
  name: Spin HTTP Trigger API
  description: The Spin HTTP Trigger API handles incoming HTTP requests and routes them to the appropriate Spin component.
    Components receive an HTTP request object and return an HTTP response. Supported via the Spin SDK in Rust, Go, Python,
    JavaScript, and other languages that target WASI.
  humanURL: https://spinframework.dev/v3/http-trigger
  tags:
  - HTTP
  - Trigger
  - WebAssembly
  properties:
  - type: Documentation
    url: https://spinframework.dev/v3/http-trigger
  - type: GitHubRepository
    url: https://github.com/fermyon/spin
- aid: spin:spin-key-value-api
  name: Spin Key-Value Store API
  description: The Spin Key-Value Store API provides Spin components with access to a persistent key-value storage service.
    Components read, write, and delete key-value pairs using the Spin SDK. The underlying store can be an in-memory store
    (for development), Redis, or cloud-managed storage depending on the deployment target.
  humanURL: https://spinframework.dev/v3/kv-store-api
  tags:
  - Key-Value
  - Storage
  - WebAssembly
  properties:
  - type: Documentation
    url: https://spinframework.dev/v3/kv-store-api
  - type: GitHubRepository
    url: https://github.com/fermyon/spin
- aid: spin:spin-sqlite-api
  name: Spin SQLite API
  description: The Spin SQLite API provides Spin components with access to an embedded relational database. Components can
    execute SQL queries and statements using the Spin SDK's SQLite interface, enabling structured data persistence within
    Spin applications.
  humanURL: https://spinframework.dev/v3/sqlite-api
  tags:
  - Database
  - SQLite
  - Storage
  - WebAssembly
  properties:
  - type: Documentation
    url: https://spinframework.dev/v3/sqlite-api
  - type: GitHubRepository
    url: https://github.com/fermyon/spin
- aid: spin:spin-serverless-ai-api
  name: Spin Serverless AI API
  description: The Spin Serverless AI API enables Spin components to run AI inference using built-in language model support
    (Llama 2, CodeLlama, etc.) via the Spin SDK's infer() function. Components must declare the ai_models they need in spin.toml.
    Supported on Fermyon Cloud and SpinKube deployments.
  humanURL: https://spinframework.dev/v3/serverless-ai-tutorial
  tags:
  - AI
  - LLM
  - Machine Learning
  - WebAssembly
  properties:
  - type: Documentation
    url: https://spinframework.dev/v3/serverless-ai-tutorial
  - type: GitHubRepository
    url: https://github.com/fermyon/spin
- aid: spin:spin-variables-api
  name: Spin Variables API
  description: The Spin Variables API provides runtime access to application configuration variables defined in spin.toml.
    Variables can be required or optional with defaults, and can be marked as secrets. At runtime, variables are resolved
    from environment variables, Vault, or other configured providers.
  humanURL: https://spinframework.dev/v3/variables
  tags:
  - Configuration
  - Variables
  - WebAssembly
  properties:
  - type: Documentation
    url: https://spinframework.dev/v3/variables
  - type: GitHubRepository
    url: https://github.com/fermyon/spin
common:
- type: LinkedIn
  url: https://www.linkedin.com/company/fermyon
- type: JSONSchema
  url: json-schema/spin-manifest.json
- type: SpectralRules
  url: rules/spin-rules.yml
- type: Vocabulary
  url: vocabulary/spin-vocabulary.yml
- type: Website
  url: https://spinframework.dev/
- type: Documentation
  url: https://spinframework.dev/v3/
- type: GettingStarted
  url: https://spinframework.dev/v3/quickstart
- type: GitHubOrganization
  url: https://github.com/fermyon
- type: GitHubRepository
  url: https://github.com/fermyon/spin
- type: ReleaseNotes
  url: https://github.com/fermyon/spin/releases
- type: RoadMap
  url: https://github.com/fermyon/spin/blob/main/ROADMAP.md
- type: Community
  url: https://www.fermyon.com/community
- type: Blog
  url: https://www.fermyon.com/blog
- type: Discord
  url: https://discord.gg/AAFNfS7NGf
- type: X
  url: https://twitter.com/fermyon
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com