Developer Tool

Assay II

Self-hosted API contract tester

Assay II dashboard mockup
Dashboard preview — assay ii running on your own machine
What it does

Define expected request and response shapes, run them against your API on a schedule, alert when the contract breaks. Catches breaking changes before your users do.

Replaces Pact broker $300/mo
Stockyard Assay II $7.99/mo · self-hosted · your data
What you get

Unlimited contracts, CI integration, diff reports, schema versioning. Self-hosted on your hardware, no usage caps, no phone-home, your data stays on disk forever.

Install
Terminal · macOS / Linux / Windows
curl -fsSL https://stockyard.dev/install/assay2.sh | sh

One ~13MB binary. No Docker, no dependencies, no background daemons.

14 days free
Then $7.99/mo. Cancel anytime. Your data stays.
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