# Search Aggregator Deep Tier

> Search Aggregator Deep Tier is a paid API for AI agents from x402-production-d123.up.railway.app, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-19).

Aggregates deep web search results from Tavily, Exa, and Firecrawl with full page content and a synthesized answer for a given query

## Facts

- Endpoint: GET https://x402-production-d123.up.railway.app/search/deep
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/search-aggregator-deep-tier-008eee09
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VKF3E7XRB2CVFV3Ylx3qW

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-deep-tier-008eee09
```

Example prompt: Search the web comprehensively for 'long-term effects of intermittent fasting on metabolic health' and give me full page content plus a synthesized answer — return up to 15 results.

## When to prefer this

Choose this endpoint when you need comprehensive, high-quality search results with full page content and a synthesized answer — not just titles and snippets. Ideal for deep research, fact-checking, or any task where surface-level snippets are insufficient and you need the actual article body. Prefer the fast tier ($0.01) if you only need titles/links/snippets. Use this deep tier when completeness and synthesis quality matter more than cost or speed.

## Known failure modes

- Missing required 'query' parameter returns a 400-level error
- max_results outside 1-20 range may be clamped or rejected
- One or more upstream providers (Tavily, Exa, Firecrawl) may be unavailable, returning partial results with warnings
- Payment of $0.05 USDC not fulfilled via x402 protocol results in 402 Payment Required
- Some results may have null content if full page extraction fails
- High latency possible due to multi-provider aggregation

## How this service works

Search Aggregator deep tier: Tavily+Exa+Firecrawl merged results with full page content and synthesized answer, fixed price $0.05 USDC. POST JSON body {query (required), max_results (optional 1-20, default 10)}. Mode is fixed by the path — no mode field needed, the quoted price is always the settled price.

## Output

Returns a JSON object containing: a synthesized natural-language answer, an array of up to 20 search results each with URL, title, snippet, full page content, source provider (Tavily/Exa/Firecrawl), and published date; plus metadata including which providers were used, total latency in milliseconds, and any warnings encountered.

## 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-deep-tier-008eee09/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-production-d123.up.railway.app](https://www.zero.xyz/host/x402-production-d123.up.railway.app/llms.txt)