# Kevscope CVE Priority API

> Kevscope CVE Priority API is a paid API for AI agents from kevscope-api.cybermax-tools.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-12).

Returns prioritized CVE patching order using KEV, EPSS, CVSS, and SSVC scoring in a single API call for up to 20 CVEs

## Facts

- Endpoint: GET https://kevscope-api.cybermax-tools.workers.dev/x402/api/priority?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kevscope-cve-priority-api-23ed94db
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HYMpO2_EGDhyQ9HNGUAtH

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kevscope-cve-priority-api-23ed94db
```

Example prompt: Can you tell me which of these CVEs I should patch first — CVE-2024-1234, CVE-2023-44487, and CVE-2021-44228 — using KEV, EPSS, and SSVC scoring?

## When to prefer this

Choose this endpoint when you need a single-call, multi-framework CVE triage that combines KEV, EPSS, CVSS, and SSVC rather than querying each source separately. Ideal for automated patch-prioritization pipelines, security dashboards, or vulnerability triage workflows where up to 20 CVEs need ranked remediation guidance per request. Prefer over manual NVD lookups or single-framework scoring when you need actionable SSVC decisions alongside exploitability data.

## Known failure modes

- Invalid or malformed CVE ID returns an error or empty result for that entry
- More than 20 CVEs submitted in a single call may be rejected or truncated
- CVE IDs not yet in NVD or KEV may return partial data
- Network timeout on the workers.dev edge function
- Payment failure via x402 protocol blocks the request

## How this service works

Which CVEs to patch first, in one call. CVE priority API + MCP: KEV, EPSS, CVSS and SSVC, 20 CVEs per call Try it free in one click, no sign-up.

## Output

A JSON object containing each queried CVE's priority ranking and supporting scores: CVSS severity, EPSS exploitation probability, KEV (Known Exploited Vulnerability) catalog membership, and SSVC (Stakeholder-Specific Vulnerability Categorization) decision. Optionally includes full vulnerability descriptions and affected product lists.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "cve": {
       "type": "string",
       "description": "One CVE ID, or up to 20 separated by commas or spaces (or POST {\"cves\": [...]}); IDs are also found inside pasted text"
      },
      "full": {
       "type": "boolean",
       "default": false,
       "description": "Full description and affected products instead of the short form"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kevscope-cve-priority-api-23ed94db/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kevscope-api.cybermax-tools.workers.dev](https://www.zero.xyz/host/kevscope-api.cybermax-tools.workers.dev/llms.txt)