Free Developer License — 6 months
Build, mock, and run real API tests with the full Local Runner desktop app. No credit card. Renew every 6 months.
Get your Free Developer license
Your license key will be delivered by email — please use your official work email.
- ✓50 endpoints, mocks, workflows · 1 concurrent run · single user
- ✓Local Runner desktop app included
- ✓All four protocols + AI features (BYO key)
- ✓Re-register every 6 months for a fresh license — at no cost
Already have a license? Talk to us or see pricing to upgrade to Professional or Enterprise.

Build production-quality API tests on your own machine
Up to 50 endpoints, 50 mocks, and 50 workflows — for free, forever (re-register every 6 months).
All four protocols included: REST, SOAP, GraphQL, and gRPC.
AI test and mock generation — bring your own Anthropic, OpenAI, Gemini, or Azure OpenAI key.
Built for developers. Used by teams worldwide.
"I started on the Free Developer plan to evaluate the platform. Within a week I had wired it into our CI and converted my team to Professional."
"The Free edition is genuinely useful — not a crippled demo. I built a full mock environment for our payments service before we even paid for anything."
"Local Runner included on Free is the differentiator. I can run my whole regression suite offline on my own laptop."
Frequently Asked Questions
Have a question we did not answer?
support@totalshiftleft.comReach out and we will get back to you within one business day.
What does the Free Developer edition include?
Up to 50 endpoints across all protocols (REST, SOAP, GraphQL, gRPC), 50 mocks, 50 workflows (10 steps each), 1 concurrent test run, 3 Auth Profiles per project, the Local Runner desktop app, and AI test/mock generation with your own API key. Reports include a "Powered by Shift-Left Studio" watermark.How long does the Free license last?
The Free Developer license is valid for 6 months from the day you sign up. When it expires, simply sign up again with the same email and you will receive a fresh 6-month license — completely free.What happens if I sign up again before my license expires?
You will see a friendly message reminding you that you already have an active Free license, and we will email you a copy of your existing key. You can re-register only after your current license has expired.Do I need a credit card?
No. No credit card is required. Just your name, email, and company.What if I need more than 50 endpoints / workflows?
Our Professional and Enterprise editions remove all caps and unlock the Scheduler, Dashboard, Analytics, Audit Logs, Public API, Jenkins integration, MCP server, Test Run Packs, RBAC, and more. Visit our pricing page to learn more.Is my data sent anywhere?
No. Shift-Left Studio is fully self-hosted. Your tests, endpoints, and credentials live only on your own infrastructure. AI features call your own provider keys directly.How do I upgrade later?
Enter your Professional or Enterprise license key in Settings → License inside the app. Your data stays in place; only the feature gates open up.
Ready to scale beyond Free?
Professional unlocks unlimited endpoints, the Scheduler, Dashboard, Analytics, Public API, Jenkins, MCP, and more.