# x402 Buyer Shortlist Tool

> x402 Buyer Shortlist Tool is a paid API for AI agents from x402-seller.558686.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Generates a prioritized shortlist of potential buyers and recommended next steps based on route-level buyer intent signals for x402 marketplace sellers

## Facts

- Endpoint: POST https://x402-seller.558686.xyz/v1/tools/x402-buyer-shortlist
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-buyer-shortlist-tool-a5467aa6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kaMXNlYuqWJi830LVW_4Z

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 x402-buyer-shortlist-tool-a5467aa6 -d '<json body>'
```

Example prompt: Using my x402 seller tools, create a buyer shortlist for my route 'x402-quote-inspector' priced at $0.001 with a buyer intent score of 10 and live-402 proof — show me which buyers to prioritize and what to do next.

## When to prefer this

Use this endpoint when you are an x402 marketplace seller who wants to identify and prioritize the most purchase-ready buyers for specific API routes based on intent scoring, rather than manually reviewing all potential buyers. Prefer this over generic CRM or lead-scoring tools when working within the x402 ecosystem, as it is specifically designed for x402 route-level buyer intent data and produces actionable next-step recommendations tailored to that context.

## Known failure modes

- Empty shortlist returned if no buyer intent signals meet threshold criteria
- Missing required fields (id, price, buyerIntent, proof) in routes array causes validation failure
- Invalid buyerIntent value (non-integer) may result in scoring errors
- Empty routes array returns empty shortlist and no next steps
- Network or payment authorization failure returns non-200 with x402 payment error

## How this service works

Operational x402 seller tools for market benchmark, buyer shortlist, seller action plan, directory rank tracker, quote inspector, competitor listing audit, directory submission kit, price band advice, and buyer intent scoring workflows.

## Output

Returns a structured JSON object with a 'shortlist' array of prioritized buyer prospects and a 'nextBuyerStep' array of recommended actions the seller should take to convert those buyers, scoped to the submitted route data.

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "tool": "x402-buyer-shortlist",
  "input": {
   "routes": [
    {
     "id": "x402-quote-inspector",
     "price": "$0.001",
     "proof": [
      "live-402"
     ],
     "buyerIntent": 10
    }
   ]
  },
  "route": "/v1/tools/x402-buyer-shortlist",
  "result": {
   "shortlist": [],
   "nextBuyerStep": []
  },
  "project": "x402-seller-growth-tools",
  "deterministic": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-buyer-shortlist-tool-a5467aa6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-seller.558686.xyz](https://www.zero.xyz/host/x402-seller.558686.xyz/llms.txt)