# MolCloud Deep Search API

> MolCloud Deep Search API is a paid API for AI agents from api.molcloud.net, paid per call via x402, $0.008/call, status unknown (last checked 2026-10-17).

Performs an aggregated deep web search query and returns consolidated results, paid per-request via x402 USDC micropayment.

## Facts

- Endpoint: GET https://api.molcloud.net/api/search/deep?utm_source=zero.xyz
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-17
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/molcloud-deep-search-api-77256b36
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IS_mTP_7FP77RJ_tKE1Ou

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 molcloud-deep-search-api-77256b36
```

Example prompt: Search the web for 'Cloudflare Workers x402 protocol integration examples' and return up to 10 results using the MolCloud deep search endpoint.

## When to prefer this

Choose this endpoint when you need pay-per-request web search without a recurring subscription, especially in autonomous agent pipelines that already settle payments in USDC on Base via x402. It is well-suited for infrequent or bursty search needs where per-call micropayments are more economical than a flat-rate plan, and for agentic systems that require programmatic, aggregated deep search results rather than a traditional search widget.

## Known failure modes

- Missing required 'q' query parameter returns a 400-level error
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required
- Query returning zero results yields an empty results array with status success
- Rate limiting or upstream search provider outage may return 5xx errors
- Invalid HTTP method (e.g. POST) rejected — only GET, HEAD, DELETE accepted

## How this service works

41 pay-per-request AI, search, headless browser, crypto alpha & memory APIs for autonomous agents settling in USDC on Base via x402 v2.

## Output

Returns a JSON object with a status field ('success'), the endpoint path, optional payer identifier, and a data object containing the original query string and an array of aggregated search result items (up to the requested limit).

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Deep search query string"
      },
      "limit": {
       "type": "integer",
       "default": 8,
       "description": "Max aggregated results"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "status",
      "endpoint"
     ],
     "properties": {
      "data": {
       "type": "object"
      },
      "payer": {
       "type": "string"
      },
      "status": {
       "enum": [
        "success"
       ],
       "type": "string"
      },
      "endpoint": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "query": "Cloudflare Workers x402 protocol",
   "results": []
  },
  "status": "success",
  "endpoint": "/api/search/deep"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/molcloud-deep-search-api-77256b36/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.molcloud.net](https://www.zero.xyz/host/api.molcloud.net/llms.txt)