ReJot
ReJot is a YC Winter 2025 (W25) company. Based in Amsterdam, NH, Netherlands. Team of 2.
About ReJot
Summary
ReJot builds Fragno, an open-source framework that lets API companies ship complete, ready-to-use integrations instead of bare endpoints and documentation. Backend logic, data storage patterns, and frontend utilities are bundled together into reusable blocks that customer developers plug in and configure rather than build from scratch. The product targets API providers who want to cut the integration work their customers must do themselves.
Go-to-market
API companies adopt Fragno to package and distribute their own integrations; the open-source release lets developers evaluate and adopt it without a sales process.
From the Y Combinator listing
We turn complex API integrations into drop‑in full‑stack libraries
ReJot is building Fragno to let API companies go from simply exposing an API to offering drop-in integrations that work out of the box. Fragno is an open‑source framework for packaging backend endpoints, data storage patterns, and frontend utilities into reusable building blocks. API providers ship full integrations, not just low‑level SDKs and docs. Customers configure rather than write code, so integrations are both much faster to launch and far more consistent across customers.
Facts
- B2B / B2B -> Engineering, Product and Design
- Amsterdam, NH, Netherlands
- 2
- Active
- Early
Founders (2)
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works