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Jeview · andududu

A local gateway that forwards /v1/systemone to TypeSafe, stores each call in SQLite, and draws the calls on a live map.
Stars
65
Language
JavaScript
License
MIT
Reading time
4 min
Published by
Community
Author
andududu
Last verified
Sep 2026

About this project

An unofficial local visualizer for Jev (TypeSafe System One): a live view of every call your code makes. Jeview is an independent project. It is not affiliated with TypeSafe AI, nor made or endorsed by it. Jeview is a gateway: it sits between your code and TypeSafe and answers nothing itself. Point your Jev client at Jeview instead of TypeSafe. Jeview sends each request on to Jev with your key, hands Jev's answer back, keeps every call in a local SQLite database, and draws the calls on a live map as they happen.

Quoted from the project's README. Read the full README.

Languages
JavaScript
Platforms
Browser
Capabilities
Open sourceRuns locallyRequires API key

Highlights

  • Listens on 127.0.0.1:4777 and answers nothing itself. Callers need no key; the key stays in Jeview.
  • A path prefix groups calls, and a Jeview-Trigger header links a later request to an earlier answer.
  • The viewer opens on the latest 20,000 calls. Search reaches the rest.
  • Needs Node 24 or later and has no packages to install for a normal run.
  • Two demos send real calls: Pixel Knight, and a made-up support inbox.

Quickstart

bash
./launch.sh
# point clients at http://127.0.0.1:4777/v1/systemone

Watch out

MIT. Unofficial and not affiliated with TypeSafe. The API key is stored in jeview.sqlite as plain text. Anything on the machine can read recorded calls. Do not expose it publicly.

Questions about this entry

Short answers drawn from the linked project or page.

Other listings of this project

Forks and copies of this project in the directory. This entry is the canonical one.

0GitHub stars
An unofficial local visualizer and gateway for Jev. Point your Jev client at 127.0.0.1:4777 instead of TypeSafe; Jeview forwards each call, records it in a local SQLite database, and draws every call on a live map.
Jev Tools & CLIs#github#local#playground

From the Jev guides

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