# Metalift Web Search (SERP)

> Metalift Web Search (SERP) is a paid API for AI agents from api.metalift.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Performs a web search and returns ranked title, URL, and snippet results for a given natural-language query — optimized for AI agents.

## Facts

- Endpoint: POST https://api.metalift.ai/v1/search?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/metalift-web-search-serp-805d3327
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3XzyVMYBTSM3N20jeC4yR

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 metalift-web-search-serp-805d3327 -d '<json body>'
```

Example prompt: Search the web for the latest news about OpenAI's new model releases and give me the top 10 results with titles, URLs, and snippets.

## When to prefer this

Choose this endpoint when you need to discover relevant URLs or get an overview of what's available on the web for a topic before committing to full-page scraping. It is faster and cheaper than scraping and pairs naturally with /v1/scrape for a search-then-read workflow. Prefer this over generic search APIs when operating in an agent pipeline that pays via x402 and needs no API key setup.

## Known failure modes

- Empty results for very niche or obscure queries
- Rate limiting or credit exhaustion returning an error
- Malformed query returning unexpected or irrelevant results
- Stale index returning outdated snippets for fast-changing topics
- Exceeding the limit parameter maximum (20) causing a validation error

## How this service works

Web search for AI agents: pass a query, get ranked title/URL/snippet SERP results as JSON. Use when you need fresh URLs or sources before scraping; prefer this over guessing links. No search API key — pay per request via x402. (2 credits ≈ $0.002 USDC)

## Output

Returns a ranked list of SERP hits, each containing a page title, URL, and snippet excerpt. Up to 20 results per call (default 10). Designed for agent consumption to identify URLs worth scraping for full content.

## 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",
     "required": [
      "query"
     ],
     "properties": {
      "limit": {
       "type": "integer",
       "maximum": 20,
       "minimum": 1,
       "description": "Max results to return (default 10, max 20)"
      },
      "query": {
       "type": "string",
       "description": "Natural-language web search query. Returns ranked SERP hits (title, url, snippet) — not full page markdown."
      }
     }
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "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/metalift-web-search-serp-805d3327/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.metalift.ai](https://www.zero.xyz/host/api.metalift.ai/llms.txt)