Spin Open-Source WebAssembly Serverless Framework

Explore this developer service’s free allowance, critical restrictions and official documentation before deploying.

INCLUDED FREE ALLOWANCE

Apache-2.0 Spin CLI and runtime to build and run WebAssembly serverless applications locally or on self-managed infrastructure; no software subscription, app count or invocation quota in the open-source runtime.

Plan details

Plan: Ongoing free allowance
Deployment model: Self-hosted
Credit card: Not required
Commercial use: Allowed
Added to directory (UTC): 2026-10-28
Last checked: 2026-10-28

Important restrictions

Spin OSS is not a free managed cloud deployment. Running production apps requires your own infrastructure and operational work; Fermyon Cloud and other providers have separate plans and usage limits. Language toolchains, databases, registries and cloud resources may cost extra. Distinct from SpinKube and Fermyon Cloud Starter.

View official documentation

Independent community listing, not affiliated with the provider. Always check the latest billing policy and quotas before enabling paid usage.