Rivet alternatives
TL;DR: 12 companies doing similar work to Rivet in B2B, ranked by how closely they match what Rivet actually does — not just by category.
How this list was built: every company here is Y Combinator-backed and shares at least one category with Rivet. They are scored on how closely their own description overlaps with Rivet's, and all facts shown come from the YC company records — nothing is estimated.
What are the best alternatives to Rivet?
| Alternative | What it does | Batch | Team | Status |
|---|---|---|---|---|
| Fithub | — | Winter 2010 | — | Inactive |
| Insoshi | — | Winter 2008 | — | Inactive |
| primitive | communication for agents | Spring 2026 | 4 | Active |
| OpenSpec | Plan mode for complex features | Winter 2026 | — | Active |
| Bryel | Devin for AI Research Engineering | Fall 2026 | 2 | Active |
| Citus Data | Real-time. Big data. PostgreSQL | Summer 2011 | 45 | Acquired |
| InfluxData | The platform for building and operating time series applications. | Winter 2013 | 210 | Active |
| OneTriangle | The cheapest, fastest inference cloud | Summer 2026 | 4 | Active |
| Captain | Self-tuning file search for AI agents | Winter 2026 | 2 | Active |
| RightNow | Enabling Model-Hardware Co-Design at Scale | Fall 2026 | 2 | Active |
| Executor | The open source tool gateway | Summer 2026 | 1 | Active |
| Reflex | The operating system for building mission-critical enterprise apps. | Winter 2023 | 10 | Active |
Is Rivet still active?
Rivet is still operating, so switching is a choice rather than a forced migration. Compare on fit and price rather than urgency.
How was this list put together?
Every company here is Y Combinator-backed and shares at least one category with Rivet. They are then ranked on how closely their own description overlaps with Rivet's, so the closest matches come first rather than whoever happens to share a tag.