
Zengin-Modern Gateway API
Deterministic API for JSON ↔ Zengin banking files
What it does
Zengin-Modern Gateway API is a deterministic API for Japanese banking file workflows. It generates CP932 (Shift-JIS) 120-byte fixed-length Zengin records from JSON, parses records back into JSON, validates file correctness, and returns lint warnings before submission. Built for teams that want strict, explicit validation without rebuilding fragile banking file logic in every internal batch or backend system.
Does the same job
all alternatives →
- TOTyk – Open Source API Gateway written in Golang2014 · tyk.io · ▲45
- ZAZenQuery – Analyze CSV/JSON files using natural language for cents2025 · zenquery.app · ▲16
- ZVZenStack V2 – RLS alternative with declarative Auth rules in Prisma2024 · zenstack.dev · ▲14
Half a year ago, we posed a Show HN about ZenStack V1 as "DSL to define data and access rules closer to the database" Throughout the month, we've attracted quite a few early adopters. Some of them, such as MermaidChart, have successfully launched into production. After talking with them, we realized that many individuals found ZenStack while seeking a cleaner and easier alternative to RLS. As a result, we pivot ourselves to be a “TypeScript toolkit on top of Prisma ORM with a fine-grained Authorization layer, auto-generated type-safe APIs, and frontend hooks”. In V2, besides the more…
Zen-JSON ProJun 2026 · jsonviewer.rusting.dev · ▲4Ultra-fast, privacy-first, AI Powered JSON Viewer & Editor
- JIJwt.is – JSON Web Token Debugger2023 · ▲38
The team at Rownd is excited to announce https://jwt.is, an updated take on JSON Web Token debugging. Like most developers, we've used jwt.io for years, but it lacks a number of useful features that would make it even more convenient. We're building on the shoulders of those who've come before us. :-) In addition to the basic JWT decoding and signature verification, we've added things like: - Verification using JWK endpoints - Locally stored history of tokens and keys - Verification for EdDSA signatures - Detection of common token providers (e.g., Google, Apple, etc) - Dark mode!…
More dev tools this month
the category →



The first open-source price index for GPU compute
Dev tools · 10d ago · getcomputable.com

OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com

Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
Launched alongside, March 2026
the whole month →

Switch from ChatGPT to Claude with import memory feature
AI · Mar 2026 · claude.com


