# Crypto Scan – Long Opportunities Feed

> Crypto Scan – Long Opportunities Feed is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the currently published list of crypto long opportunities ranked by opportunity_score, including classification, entry validity, and freshness metadata.

## Facts

- Endpoint: POST https://agentdata-api.sander-van-aard.workers.dev/crypto/scan
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-scan-long-opportunities-feed-e0561b09
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_h1i28lpfFpBLqABQUJOHK

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 crypto-scan-long-opportunities-feed-e0561b09 -d '<json body>'
```

Example prompt: Show me all the current crypto long opportunities ranked by their opportunity score, including which coins are classified as STRONG_LONG and how fresh each signal is.

## When to prefer this

Use this endpoint as the entry point when you have no existing signal_ids and need to discover what crypto long opportunities are currently available. It provides a ranked overview ideal for selecting which signals to investigate further via sibling endpoints like /crypto/verdict or /crypto/status. Prefer it over polling endpoints (which require a known signal_id) and over the verdict/history endpoints (which go deeper on a single opportunity).

## Known failure modes

- Empty list returned — valid if no opportunities are currently published, not an error
- Payment required error (x402) if USDC payment header is missing or malformed
- Upstream signal system unavailable — may return 5xx or degraded response
- Stale or expired signals may still appear if upstream has not yet unpublished them
- Malformed POST body may result in a 400 validation error

## How this service works

Machine-readable crypto market intelligence: the currently published long opportunities from an upstream advice system, ranked by opportunity_score (0-100 heuristic, never a calibrated win probability). Per opportunity: signal_id, version, coin, classification (STRONG_LONG..AVOID), opportunity type, publication status, entry validity and freshness in seconds. No execution, no custody, no position sizing. Each response names the next useful call. Paid per request; an empty list is a valid answer.

## Output

A ranked list of currently published crypto long opportunities. Each entry includes: signal_id, version, coin ticker, classification (e.g. STRONG_LONG, AVOID), opportunity type, publication status, entry validity window, and freshness in seconds. The response also names the next recommended API call to make. An empty list is a valid response if no opportunities are currently published.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-scan-long-opportunities-feed-e0561b09/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdata-api.sander-van-aard.workers.dev](https://www.zero.xyz/host/agentdata-api.sander-van-aard.workers.dev/llms.txt)