# Search Aggregator Fast Tier (Serper)

> Search Aggregator Fast Tier (Serper) is a paid API for AI agents from search.combify.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-23).

Performs fast web searches via Serper, returning titles, links, and snippets for up to 20 results at $0.01 USDC per query.

## Facts

- Endpoint: GET https://search.combify.app/fast?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-23
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/search-aggregator-fast-tier-serper-a2e7dabb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ClTeKwiMG0ekLUMryqU7B

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 search-aggregator-fast-tier-serper-a2e7dabb
```

Example prompt: Search the web for 'best open-source LLM frameworks in 2025' and give me the top 8 results with titles, links, and snippets.

## When to prefer this

Choose this endpoint when you need fast, low-cost web search results (titles, links, snippets) and don't require full page content or multi-provider synthesis. At $0.01 USDC per call it is ideal for high-frequency lookups, real-time news retrieval, or quick fact-checking where latency matters more than depth. Prefer the deep tier sibling if you need full page content, merged multi-provider results, or synthesized answers.

## Known failure modes

- Payment not provided or insufficient — 402 response requiring x402 payment
- Query parameter missing — 400 bad request
- max_results out of range (< 1 or > 20) — validation error
- Serper upstream API unavailable — 502 or 503 error
- Rate limiting or quota exceeded on the upstream provider — partial or empty results with warnings

## How this service works

Search Aggregator fast tier (GET): Serper web search via URL query params ?query=...&max_results=... , fixed price $0.01 USDC. query is required. Mode is fixed by the path.

## Output

Returns a JSON object containing the original query, an array of result objects (each with url, title, snippet, content, source_provider, and published_date), an optional synthesized answer string, a list of providers_used, latency_ms, and any warnings. Up to 20 results depending on max_results parameter.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "search query"
      },
      "max_results": {
       "type": "number",
       "description": "max results, 1-20 (defaults: fast 5, deep 10)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "query",
      "results",
      "answer",
      "providers_used",
      "latency_ms",
      "warnings"
     ],
     "properties": {
      "query": {
       "type": "string"
      },
      "answer": {
       "type": [
        "string",
        "null"
       ]
      },
      "results": {
       "type": "array",
       "items": {
        "type": "object",
        "required": [
         "url",
         "title",
         "snippet",
         "content",
         "source_provider",
         "published_date"
        ],
        "properties": {
         "url": {
          "type": "string"
         },
         "title": {
          "type": "string"
         },
         "content": {
          "type": [
           "string",
           "null"
          ]
         },
         "snippet": {
          "type": "string"
         },
         "published_date": {
          "type": [
           "string",
           "null"
          ]
         },
         "source_provider": {
          "type": "string"
         }
        }
       }
      },
      "warnings": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "latency_ms": {
       "type": "number"
      },
      "providers_used": {
       "type": "array",
       "items": {
        "type": "string"
       }
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/search-aggregator-fast-tier-serper-a2e7dabb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from search.combify.app](https://www.zero.xyz/host/search.combify.app/llms.txt)