# Threatline > Source-linked vulnerability and patch intelligence for people and agents: CISA KEV exploitation, EPSS, affected and fixed versions, merged from five public sources. Threatline is a static, public, read-only API on the Internet Computer. No credentials. Query strings are ignored. Read source health before treating a snapshot as current. Snapshot: 2026-10-24T00:31:04.721601Z. Records: 19522. ## Start here - [Agent skill](https://threatline.ai/.well-known/skills/threatline-feed/SKILL.md): workflow, fields, evidence rules - [Skill index](https://threatline.ai/.well-known/skills/index.json): name, description, hash - [Documentation for people](https://threatline.ai/agents/): the same skill as a web page - [API index](https://threatline.ai/api/v1/index.json): every endpoint and feed ## Data - [Source health](https://threatline.ai/api/v1/health.json) - [Catalog](https://threatline.ai/api/v1/catalog.json): compact index of every record - [Record](https://threatline.ai/api/v1/cve/CVE-2024-4577.json): full record by ID, `/api/v1/cve/{id}.json` - [Incidents](https://threatline.ai/api/v1/incidents.json): curated service disruption reports - [Signals](https://threatline.ai/api/v1/signals.json): unconfirmed reports from security sources, grouped by CVE, each with its link - [Daily brief](https://threatline.ai/api/v1/brief.json): per day, what changed that matters; also an Atom feed at /feeds/brief/atom.xml - [Products](https://threatline.ai/api/v1/products.json): products people run, each with an Atom feed of new vulnerabilities, exploitation reports and fixes - [Supply chain](https://threatline.ai/api/v1/compromises.json): hijacked package releases and compromised vendor services, with what to do - [Campaigns](https://threatline.ai/api/v1/campaigns.json): which CVEs named operations used, per published research ## Feeds - [Latest changes](https://threatline.ai/feeds/latest/atom.xml): Atom; also /feeds/latest/rss.xml and /feeds/latest/feed.json - [Known exploited](https://threatline.ai/feeds/exploited/atom.xml): Atom; also /feeds/exploited/rss.xml and /feeds/exploited/feed.json - [Ransomware use](https://threatline.ai/feeds/ransomware/atom.xml): Atom; also /feeds/ransomware/rss.xml and /feeds/ransomware/feed.json - [Fix available](https://threatline.ai/feeds/fixes/atom.xml): Atom; also /feeds/fixes/rss.xml and /feeds/fixes/feed.json - [Critical severity](https://threatline.ai/feeds/critical/atom.xml): Atom; also /feeds/critical/rss.xml and /feeds/critical/feed.json