# x402 Endpoint Radar Micro Dataset Download

> x402 Endpoint Radar Micro Dataset Download is a paid API for AI agents from data-vending.869biz.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-10).

Downloads a micro-tier sample of the x402 endpoint radar dataset — a curated list of x402-native API endpoints — paying $0.002 USDC via x402 protocol, no API key required.

## Facts

- Endpoint: GET https://data-vending.869biz.com/v1/datasets/tech.x402_endpoint_radar.micro.v1/download?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-endpoint-radar-micro-dataset-download-c3b3fb14
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WuO3wPxFpFjYJzIMXlT0N

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-endpoint-radar-micro-dataset-download-c3b3fb14
```

Example prompt: Pull the micro-tier x402 endpoint radar dataset using my Base USDC payment rail — I want to see what x402-native APIs are currently listed, and I already have a quote ID ready.

## When to prefer this

Choose this endpoint when an AI agent needs a small, affordable ($0.002) sample of x402-native API endpoint listings without any signup or API key, and has already obtained a quote_id from the companion quote endpoint. Prefer over scraping or manual discovery when building automated agent tooling that needs structured, provenance-tagged endpoint data payable via USDC on Solana or Base.

## Known failure modes

- Invalid or expired quote_id returns payment/auth error
- Unsupported rail_id value (not solana-usdc or base-usdc) returns validation error
- Payment not confirmed on-chain results in 402 or payment failure response
- Dataset temporarily unavailable returns 503 or error body
- Missing required parameters returns 400 bad request

## How this service works

HTTP-native dataset vending for autonomous AI agents. No signup, no API key — discover, pay USDC via x402, get clean JSON. Human-designed data with provenance and conservation revenue share.

## Output

Returns a JSON object with the dataset SKU ('tech.x402_endpoint_radar.micro.v1'), tier ('micro'), a list of up to 2 endpoint items each with a title and source_count, the as_of_date of the data, and a pointer to the next upgrade tier SKU for more results.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rail_id": {
   "type": "string",
   "description": "Payment rail: solana-usdc or base-usdc"
  },
  "quote_id": {
   "type": "string",
   "description": "Quote id from GET .../quote"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "sku": "tech.x402_endpoint_radar.micro.v1",
  "tier": "micro",
  "items": [
   {
    "title": "string",
    "source_count": 1
   }
  ],
  "as_of_date": "2026-06-06",
  "item_limit": 2,
  "upgrade_to": "tech.x402_endpoint_radar.probe.v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-endpoint-radar-micro-dataset-download-c3b3fb14/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data-vending.869biz.com](https://www.zero.xyz/host/data-vending.869biz.com/llms.txt)