{"version":1,"type":"story","url":"https://digestai.news/story/kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning","json":"https://digestai.news/story/kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning.json","markdown":"https://digestai.news/story/kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning.md","slug":"kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning","headline":"Kairos offers open-source fraud decisioning platform with agent tuning","summary":"Kairos is an open‑source platform that makes real‑time fraud decisions for sign‑ups, logins, orders, payments and payouts. It records each decision and the signals behind it, and lets a coding agent tune the workflow. The system uses Grayson, Finic’s decision model, to answer plain‑language questions about risk and to provide calibrated probabilities. Kairos supports TypeScript and Python SDKs, a CLI, an HTTP API and Docker self‑hosting, and can be integrated with agents such as Claude Code, Cursor or Codex via its MCP server. Experiments let the agent propose model variants, train and test them on the user’s data, and report ROC‑AUC, PR‑AUC and precision/recall. The platform is licensed under Apache License 2.0.","keyPoints":["Kairos is an open‑source fraud decisioning platform that integrates with coding agents like Claude Code","It uses Grayson, a decision model that answers plain‑language questions about fraud risk","Kairos supports TypeScript and Python SDKs, a CLI, HTTP API and Docker self‑hosting"],"whyItMatters":"Open‑source fraud detection gives merchants a flexible, agent‑tuned alternative to proprietary platforms, enabling real‑time decisions and custom experiments without vendor lock‑in.","category":{"slug":"enterprise","name":"Enterprise & Industry","url":"https://digestai.news/category/enterprise"},"entities":{"companies":["Finic","Sardine","Sift","Riskified","SEON"],"models":["Grayson"],"people":[]},"firstPublishedAt":"2026-10-30T00:00:00Z","updatedAt":"2026-10-30T00:00:00Z","sourceCount":1,"hasPrimarySource":true,"sources":[{"outlet":"github.com","title":"Show HN: Kairos – Open-source risk and fraud decisioning platform","url":"https://github.com/finic-ai/kairos","publishedAt":"2026-10-30T00:00:00Z","type":"primary","primary":true,"lead":true}],"sourceNotes":null,"discussions":[{"site":"Hacker News","url":"https://news.ycombinator.com/item?id=50358314","points":47}],"thread":null,"cite":{"text":"Digest AI, \"Kairos offers open-source fraud decisioning platform with agent tuning\", 30 October 2026, https://digestai.news/story/kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning","publisher":"Digest AI","title":"Kairos offers open-source fraud decisioning platform with agent tuning","datePublished":"2026-10-30T00:00:00Z","url":"https://digestai.news/story/kairos-offers-open-source-fraud-decisioning-platform-with-agent-tuning"},"generatedBy":"Written by Digest AI's editorial model from the linked sources; the sources are the record.","license":"Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse"}