CVE lookup

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xBEccE6dd106Cfa910F78fea188B2fcCEb73bdD0F",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "maxTimeoutSeconds": 60
  }
]

{
  "bazaar": {
    "examples": {
      "input": {
        "cve_id": "CVE-2021-23337"
      },
      "output": {
        "epss": {
          "date": "2026-06-19",
          "percentile": 0.83,
          "score": 0.0094
        },
        "id": "CVE-2021-23337",
        "ok": true,
        "severity": [
          "HIGH (CVSS 7.2)"
        ],
        "summary": "lodash command injection via _.template"
      }
    },
    "info": {
      "description": "Resolve one vulnerability identifier (CVE or GHSA) to its full advisory: summary, affected ranges, CVSS severity, the EPSS exploit-probability score and percentile, and the fixed version. Use it to enrich a finding an agent already has, or to decide whether a single flagged dependency is worth acting on.",
      "input": {
        "method": "GET",
        "queryParams": {
          "cve_id": "CVE-2021-23337"
        },
        "type": "http"
      },
      "output": {
        "example": {
          "epss": {
            "date": "2026-06-19",
            "percentile": 0.83,
            "score": 0.0094
          },
          "id": "CVE-2021-23337",
          "ok": true,
          "severity": [
            "HIGH (CVSS 7.2)"
          ],
          "summary": "lodash command injection via _.template"
        },
        "type": "json"
      },
      "title": "Look up a single CVE / GHSA with EPSS and fix data"
    },
    "schema": {
      "properties": {
        "input": {
          "properties": {
            "queryParams": {
              "properties": {
                "cve_id": {
                  "description": "CVE or GHSA identifier, e.g. CVE-2021-23337 or GHSA-35jh-r3h4-6jhm",
                  "type": "string"
                }
              },
              "required": [
                "cve_id"
              ],
              "type": "object"
            }
          },
          "type": "object"
        },
        "output": {
          "properties": {
            "epss": {
              "description": "FIRST.org EPSS: {score: 0..1, percentile: 0..1, date}",
              "type": "object"
            },
            "id": {
              "description": "Canonical advisory ID",
              "type": "string"
            },
            "ok": {
              "type": "boolean"
            },
            "severity": {
              "description": "CVSS vectors/ratings from the upstream advisories",
              "type": "array"
            },
            "summary": {
              "description": "One-line description of the flaw",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "type": "object"
    }
  }
}

curl "https://vulnfeed-api.novadyne.ai/vulnscan/cve/CVE-2021-44228"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://vulnfeed-api.novadyne.ai/vulnscan/cve/CVE-2021-44228");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

import httpx
res = httpx.get("https://vulnfeed-api.novadyne.ai/vulnscan/cve/CVE-2021-44228")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header