License

Is Stockyard open source?

The proxy core is open source (Apache 2.0). The full platform is source-available under BSL 1.1. Here is exactly what that means.

Two binaries, two licenses

Open Source (Apache 2.0)

Stockyard Proxy

The LLM proxy core: OpenAI-compatible routing, 24 middleware modules, provider adapters, model aliasing, caching, failover, rate limiting, spend tracking, request logging.

go build ./cmd/stockyard-proxy/

Source Available (BSL 1.1)

Stockyard Platform

Everything in the proxy plus: Lookout (tracing dashboards), Brand (audit ledger), Tack Room (prompts), Forge (workflows), Trading Post (config packs), admin dashboard, and 150 tools.

go build ./cmd/stockyard/

What you can do

Use the proxy (Apache 2.0) for anything, including competing products
Fork, modify, and redistribute the proxy under Apache 2.0 terms
Contribute to the proxy codebase
Download and self-host the full platform for your own use
Use the full platform in production for your company
Read and audit the entire source code on GitHub
Build applications that use Stockyard as infrastructure

What you cannot do

Offer the full Stockyard Platform (BSL portion) as a managed or hosted service
Resell the platform's commercial features as a competing product

The BSL restriction applies only to the platform binary, not the proxy. The proxy is Apache 2.0 with no restrictions. For the full terms, read the LICENSE and LICENSE-APACHE files.

Why a dual license

The proxy is the adoption wedge. Making it Apache 2.0 means developers can use it with zero licensing concerns, embed it in their products, and contribute back. That builds the community and ecosystem.

The platform features (dashboards, audit ledger, workflow engine, 150 tools) are the commercial value. Keeping those under BSL prevents a well-funded company from taking the full platform and offering it as a competing hosted service. This is the same model used by GitLab (MIT core + proprietary), Grafana (AGPL + proprietary), and many others.

What BSL 1.1 actually says

BSL 1.1 has a built-in conversion clause. After a specified period (typically 4 years from each release), the code automatically converts to a permissive open-source license. This means every version of Stockyard will eventually become fully open source. The BSL is a time-limited restriction, not a permanent one.

The full license text is in the LICENSE file in the GitHub repository.

How this compares to competitors

LiteLLM: the proxy is Apache 2.0, enterprise features are proprietary. Similar model to Stockyard but requires Postgres.

Langfuse: MIT-licensed core, fully open source. Langfuse Cloud is a managed offering on top.

Helicone and Portkey: managed SaaS products. Limited self-hosting options.

Stockyard's approach: the proxy core is genuinely open source (Apache 2.0), and the full platform source is available under BSL for self-hosting. You get more transparency than SaaS products and more freedom on the proxy layer than BSL-only tools.

If the license matters to your organization

If your organization requires Apache 2.0 or MIT for everything, the Stockyard Proxy meets that requirement. You get a fully functional LLM proxy with routing, caching, failover, and spend tracking under Apache 2.0. The commercial platform features (dashboards, audit ledger, workflows) are BSL 1.1.

Source available. Self-host freely.

Read the code, audit it, run it on your servers. The only thing BSL prevents is reselling it as a competing hosted service.

Install Stockyard

View source on GitHub → Security details →