# Cantu Radar Flow – Procurement Opportunity Verifier

> Cantu Radar Flow – Procurement Opportunity Verifier is a paid API for AI agents from cantu-radar-flow.base44.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Verifies an official procurement opportunity URL or notice ID and returns an evidence-grounded PASS, VERIFY, or KILL result indicating legitimacy.

## Facts

- Endpoint: POST https://cantu-radar-flow.base44.app/functions/cantuVerifyX402
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cantu-radar-flow-procurement-opportunity-verifier-94b8c002
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8cu5ENEYCpl_YyI7SCqfg

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 cantu-radar-flow-procurement-opportunity-verifier-94b8c002 -d '<json body>'
```

Example prompt: Can you verify whether this procurement notice is legitimate — the URL is https://sam.gov/opp/abc123/view and the solicitation ID is W912HQ-24-R-0001 — and tell me if it's a PASS, VERIFY, or KILL?

## When to prefer this

Use this endpoint when you need a quick, evidence-backed legitimacy verdict on a specific government or official procurement notice before investing bid preparation resources. It is especially useful for vendor qualification pipelines, automated opportunity triage, or due-diligence workflows where human review of every notice is impractical. Prefer this over manual research when you have a public URL or solicitation ID and need a structured PASS/VERIFY/KILL classification rather than a general web search.

## Known failure modes

- URL is not publicly accessible or requires authentication — verification cannot proceed
- Notice ID does not match any known procurement database record — returns ambiguous or VERIFY result
- URL points to a non-procurement page — endpoint may return an error or low-confidence KILL
- Network timeout fetching the procurement notice — request fails with an error
- Malformed URL or missing required fields — returns a validation error before processing

## How this service works

CANTU Buyer Demand Search — Paid machine-readable search for current buyer demand and procurement opportunities; also verifies a specific official notice ID or URL.

## Output

Returns a structured verdict of PASS, VERIFY, or KILL indicating whether the procurement opportunity is legitimate, along with evidence grounding the decision. PASS means the notice checks out; VERIFY means it requires additional human review; KILL means it appears illegitimate or fraudulent.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "format": "uri",
   "description": "Public HTTPS URL for an official procurement notice"
  },
  "query": {
   "type": "string",
   "maxLength": 120,
   "minLength": 2,
   "description": "Topic to search across current active SAM.gov procurement demand"
  },
  "notice_id": {
   "type": "string",
   "description": "Official procurement notice or solicitation identifier"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cantu-radar-flow-procurement-opportunity-verifier-94b8c002/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cantu-radar-flow.base44.app](https://www.zero.xyz/host/cantu-radar-flow.base44.app/llms.txt)