Show HN: Kairos – Open-source risk and fraud decisioning platform
0 comments
- Points105
- Comments36
–Rank now
#16Peak rank
6Days on list
98Score · 7d
Nov 3, 2026First seen
Rank · 7 days
On Hacker News
Hey HN, Ayan here from Finic. We’re launching Kairos, an open source alternative to Sift, Sardine, and other real-time fraud decisioning platforms. Kairos addresses two of the biggest problems facing traditional decisioning tools: a lack of labeled data to train on and dealing with fraudsters that are constantly changing their tactics. 1. Traditional fraud solutions use ML models such as XGBoost to detect fraud, but these models are dependent on quality labeled data which many businesses do…
- Points
- 105
- Comments
- 36
- Submitted by
- ayanb9440
- Posted
- Nov 3, 2026
- Site
- github.com
Story details from Hacker News ↗ · linked article on github.com.
Trending history
Show HN: Kairos – Open-source risk and fraud decisioning platform was first seen on Hacker News · Front page on Nov 3, 2026. Since then it has appeared in 146 checks on 6 different days, across 3 lists (Hacker News · Front page, Hacker News · Show HN, Hacker News · Show HN · this week). Its best position was #16 of 30, reached on Nov 4, 03:37 UTC. It dropped off the list after Nov 8, 14:50 UTC. The same link also trended on GitHub, which raises its cross-platform score.
Rank history
Position on Hacker News · Front page at every check (lower is better).
Last 14 days
Best rank per day (UTC).
26
16
Oct 26today
Metric history
Platform metric as reported by Hacker News.
Where it trended
| List | Best | Days | Checks | Last seen |
|---|---|---|---|---|
| Hacker News · Front page | #16 | 2 | 54 | |
| Hacker News · Show HN | #9 | 1 | 13 | |
| Hacker News · Show HN · this week | #15 | 4 | 79 | |
| GHGitHub · Rising this week finic-ai/kairos | same link | |||
From the discussion
A few top-level comments from Hacker News, shortened. Read the full thread on Hacker News.
I love that this is open source, thank you. I'm not a fan of TypeScript on Node for this solution space. For a payment gateway, I'd want a program that can't modify itself from external sources. Programs in this runtime can rewrite themselves while running, and the Dockerfile doesn't lock it down. So as it stands,…
This isn’t really a new problem. Back in 1995, I was the Sr. Internet Mail Administrator at AOL. We were doing everything we could to fight the spammers. We found that we would work on a new technique over a period of weeks or months, and then they would find a way to work around our technique in a single weekend.…
Not something I need but super cool that this is both open source and shows the realtime flow.
Featured in
Archived daily, weekly and monthly lists that include this entry.
Hacker News 2 days, best #16
Show HN 1 day, best #9
Questions
Is Show HN: Kairos – Open-source risk and fraud decisioning platform trending on Hacker News right now?
Not at the moment. It was last on the list on Nov 8, 14:50 UTC, after 6 days of trending.
What is the highest rank Show HN: Kairos – Open-source risk and fraud decisioning platform reached?
#16 on Hacker News · Front page, on Nov 4, 03:37 UTC. Trendoday checks this list every 15 minutes.
How long has Show HN: Kairos – Open-source risk and fraud decisioning platform been trending?
It was first seen on Nov 3, 2026 and has been on the list on 6 days (146 checks) since.
How much discussion did it get on Hacker News?
105 points and 36 comments; submitted by ayanb9440 on Nov 3, 2026.