# RelayShield Tech Stack CVE Lookup

> RelayShield Tech Stack CVE Lookup is a paid API for AI agents from api.relayshield.net, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-16).

Given a list of technology stack components, returns matched CVEs (Common Vulnerabilities and Exposures) and a count of critical vulnerabilities found

## Facts

- Endpoint: POST https://api.relayshield.net/v1/payg/tech-stack-cve
- Price: $0.2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/relayshield-tech-stack-cve-lookup-213bd5af
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zjaAcSNA06Lb2Oj61AL34

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 relayshield-tech-stack-cve-lookup-213bd5af -d '<json body>'
```

Example prompt: Check my tech stack for known CVEs — we're running nginx, Node.js, and PostgreSQL. I need to know if there are any critical vulnerabilities I should be worried about.

## When to prefer this

Use this endpoint when you need a quick, pay-per-call CVE lookup against a specific technology stack without setting up a full vulnerability scanning platform. Ideal for agents performing automated pre-deployment checks, compliance audits, or risk assessments on known technology components. Best suited for querying named software (e.g., nginx, express, postgres) rather than scanning live systems or binary analysis.

## Known failure modes

- Unknown or misspelled technology names may return zero matches even if vulnerabilities exist
- CVE database may not be fully up to date with the latest disclosures
- Very new or niche technologies may have incomplete coverage
- Invalid input format may cause a non-ok response
- Payment failure via x402 protocol will block the request

## How this service works

RelayShield Landing Site

## Output

Returns a JSON object with a boolean 'ok' status, a list of matched CVEs for the queried technologies, a count of critical-severity CVEs found, and the list of tech stack components that were queried.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "domain": {
   "type": "string",
   "description": "Alternative: pull tech_stack from a stored user profile by domain"
  },
  "tech_stack": {
   "type": "array",
   "items": {
    "type": "string"
   },
   "description": "Declared technology product names"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "data": {
   "matched_cves": [],
   "critical_count": 0,
   "tech_stack_queried": [
    "nginx"
   ]
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/relayshield-tech-stack-cve-lookup-213bd5af/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.relayshield.net](https://www.zero.xyz/host/api.relayshield.net/llms.txt)