What it sells
API simulators for testing and training agents locally
Business model breakdown
Buyer: who owns the budget?
UnverifiedEngineers and AI/agent teams building or testing against third-party APIs; RL environment builders at enterprise.
Trigger: what makes them buy now?
UnverifiedTesting agents against live APIs is rate-limited and unsafe; need stateful, fault-injectable twins.
Workflow: what inputs become what output?
Install CLI, run local stateful simulators (Slack, GitHub, Kalshi, Stripe, Okta, Linear...), point client at localhost to test or train agents without rate limits; simulators verified against live APIs.
Economics: what it saves and how it charges
Per-seat subscription plus metered simulator minutes; enterprise custom with resale inside RL environments.
Distribution: how it reaches customers
Self-serve CLI install with free tier; Pro self-serve; Enterprise talk to us.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| — | Y Combinator Fall 2026 | — | Y Combinator | ycombinator.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.