# Alpha Marketplace Search & Filter

> Alpha Marketplace Search & Filter is a paid API for AI agents from alpha.snipersearch.fun, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Search and filter a marketplace of alpha (crypto/trading intelligence) listings by keyword, category, blockchain, and price range

## Facts

- Endpoint: GET https://alpha.snipersearch.fun/alpha/filter
- 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/alpha-marketplace-search-filter-b4001813
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5V92YXjTo4o2S92PWeoGK

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 alpha-marketplace-search-filter-b4001813
```

Example prompt: Search the Alpha Marketplace on SniperSearch for DeFi alpha signals on Ethereum, priced between 0.01 and 5 USDC, in the 'trading' category — show me up to 20 results.

## When to prefer this

Use this endpoint when an agent needs to discover, search, or browse alpha signals/trading intelligence listings in the SniperSearch Alpha Marketplace, especially when filtering by blockchain, category, or price is needed. Prefer this over generic web search when the user explicitly wants marketplace-listed alpha products.

## Known failure modes

- Invalid chain value returns empty results or error
- Price range with minPrice greater than maxPrice may return no results
- Very broad queries may return up to the default limit of 50 with hasMore=true
- Unrecognized category tag silently returns zero results
- Network or payment failure returns no data and a non-success response

## How this service works

Search and filter alpha marketplace by categories, price, chains

## Output

Returns a JSON object with an array of alpha listing previews, the count of results returned, the total number of matching results, and a hasMore flag indicating pagination. Each alpha object previews a signal or intelligence listing in the marketplace.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "q": {
   "type": "string",
   "description": "Search query"
  },
  "limit": {
   "type": "number",
   "description": "Max results (default 50)"
  },
  "chains": {
   "type": "string",
   "description": "Filter by blockchain"
  },
  "maxPrice": {
   "type": "number",
   "description": "Maximum price"
  },
  "minPrice": {
   "type": "number",
   "description": "Minimum price"
  },
  "categories": {
   "type": "string",
   "description": "Filter by tags"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "schema": {
  "type": "object",
  "properties": {
   "count": {
    "type": "number",
    "description": "Number of results returned"
   },
   "total": {
    "type": "number",
    "description": "Total matching results"
   },
   "alphas": {
    "type": "array",
    "description": "Array of alpha preview objects"
   },
   "hasMore": {
    "type": "boolean",
    "description": "Whether more results exist"
   },
   "success": {
    "type": "boolean"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/alpha-marketplace-search-filter-b4001813/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from alpha.snipersearch.fun](https://www.zero.xyz/host/alpha.snipersearch.fun/llms.txt)