Build on Critical.
Read the public daily digest as JSON, or subscribe to the feed.
JSON API
GET /api/digest returns the current digest with ranked CVEs, CVSS scores, KEV signals, EPSS probabilities, priority breakdowns, and upstream freshness. No API key is required.
curl https://critical.is/api/digest
The response includes sample, generatedAt, and ranked. Sample responses are explicitly labelled when no data has been ingested. The public response does not include your personal watchlist. Responses may be cached for five minutes.
MCP
The MCP server is planned and is not available yet. Agents can use the JSON API today; no MCP endpoint is advertised until it is implemented.