# Spin Variables API

**Canonical:** https://apis.io/apis/spin/spin-variables-api/  
**Provider:** Spin — https://apis.io/providers/spin/  
**Documentation:** https://spinframework.dev/v3/variables

Spin Variables API is one of 5 APIs that [Spin](https://apis.io/providers/spin/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Configuration, Variables, and WebAssembly. The published artifact set on APIs.io includes API documentation and a GitHub repository.

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.

## Machine-readable artifacts (2)

- **Documentation** — https://spinframework.dev/v3/variables
- **GitHubRepository** — https://github.com/fermyon/spin

## Other Spin APIs (4)

- [Spin HTTP Trigger API](https://apis.io/apis/spin/spin-http-trigger-api/)
- [Spin Key-Value Store API](https://apis.io/apis/spin/spin-key-value-api/)
- [Spin SQLite API](https://apis.io/apis/spin/spin-sqlite-api/)
- [Spin Serverless AI API](https://apis.io/apis/spin/spin-serverless-ai-api/)

## Tags

Configuration, Variables, WebAssembly

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/spin/spin-variables-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/spin/.