Accounts and Access
Sign in to MesoSim to create and run your own backtests. Open Manage Subscriptions from your account menu to check your current access. If onboarding asks you to accept agreements, complete that step before continuing.
Plans and features
The retail plans include the following features. Standard includes everything in Basic, and Advanced includes everything in Standard.
| Feature | Basic (free) | Standard | Advanced |
|---|---|---|---|
| View and analyze your own and shared results | Included | Included | Included |
| Save backtest templates | Included | Included | Included |
| Access the documentation | Included | Included | Included |
| Integrated MesoSim AI Assistant for strategy development and backtest analysis | — | Included | Included |
| Unlimited backtests with SPX options | — | Included | Included |
| Event and OptionNet Explorer exports | — | Included | Included |
| Share results with others | — | Included | Included |
| MesoLive Paper Trading | — | 1 simulated account | 2 simulated accounts |
| AI Agent support for research from Codex or Claude through the API | — | — | Included |
| MesoSim API access | — | — | Included |
| RUT, VIX and GLD option backtests | — | — | Included |
| Margin models | — | — | Included |
| Options Valuation Model and Solver | — | — | Included |
| Volatility Surface Viewer | — | — | Included |
| HD Risk Graphs | — | — | Included |
| Hourly Risk Trace samples | — | — | Included |
You can upgrade from Basic when you want to run backtests. Standard and Advanced offer monthly or yearly billing, with an optional MesoLive add-on.
FundPro
Deltaray FundPro supports institutions and professional workflows with the following features:
| Feature | FundPro |
|---|---|
| AI Researcher for quantitative trading | Included |
| MesoLive API and trading automation | Included |
| Machine Learning based trade optimization | Included |
| MesoSim API and advanced backtesting workflows | Included |
| MesoLive SDK | Included |
| Backtesting throughput | 25× Advanced in the entry configuration |
Trial
New retail subscriptions start with a 14-day trial with Advanced + MesoLive access, regardless of whether you choose Standard or Advanced for renewal.
To start, choose the plan you want after the trial on Manage Subscriptions, then complete checkout in Stripe. A payment method is required. Check the Subscription page and checkout for any one-time trial fee.
During the trial, Manage Subscriptions shows the remaining time and your selected renewal plan. When the trial ends, the subscription automatically continues on that plan unless you cancel renewal before the trial ends.
If you cancel renewal during the trial, you keep trial access until its end. Afterward, you retain a free Basic account to view and analyze your own and shared results, save templates, and access the documentation.
Continue with your first backtest, or review API setup for automation.
Registering with your email address and registering with Google can create two separate MesoSim accounts, even when both use the same email address. Your subscription belongs to only one of those accounts. Use the sign-in method associated with that account to access your subscription.
Manage account access
Open your account page from the profile menu to review subscribed symbols and enabled features. Use Manage subscription to review billing or change your plan, and Manage API Keys for API access.