A restaurant owner figuring out menu pricing, or a cleaning-service owner estimating a job, usually doesn't need a full accounting platform — they need a quick, honest number right now, on their phone, without creating an account. Main Street Toolbox is exactly that: a free set of over 31 calculators built for people who actually run small, hands-on businesses, covering things like menu pricing, food cost percentage, tip distribution, and trade-specific math for construction, lawn care, salons, and retail. It requires no signup and shows no ads, is mobile-first for use on the job site or shop floor, and explicitly frames its numbers as estimates for guidance rather than professional financial or tax advice. It doesn't save your data or export results — it's built for quick, in-the-moment calculations, not ongoing business management.
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Développeurs et organisations construisant des agents IA en production nécessitant conformité, audit et gouvernance des données dès la conception | — | |
| 2 | Développeurs d'applications IA sensibles à la latence d'inférence (temps réel, interactif) | — | |
| 3 | Joueurs | — | |
| 4 | Radioamateurs | — | |
| 5 | Passionnés de musique | — | |
| 6 | Musiciens | Développeurs | — | |
| 7 | Professionnels | — | |
| 8 | Développeurs | — | |
| 9 | Entreprises | Startups | — | |
| 10 | Musiciens | — | |
| 11 | Freelances | Petites entreprises | — |
A free, open-source memory system for AI agents that remembers things the same reproducible way every time — instead of the usual approach where an agent's memory changes slightly each time it searches, which makes its behavior hard to trust or audit.
An AI inference API built specifically for speed — over 1,000 image, video, audio and language models served through one endpoint with sub-1-second latency and no cold starts.
