# RagRadar Grid — Facebook Marketplace Search

> RagRadar Grid — Facebook Marketplace Search is a paid API for AI agents from grid.ragradar.space, paid per call via x402, $0.75/call, status unknown (last checked 2026-09-15).

Search Facebook Marketplace listings by keyword query, returning structured e-commerce data via pay-per-call micropayments.

## Facts

- Endpoint: GET https://grid.ragradar.space/api/grid/facebook/marketplace/search
- Price: $0.75/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ragradar-grid-facebook-marketplace-search-8b94a0e9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8hFcL3DkCw1xQgf8frQ44

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 ragradar-grid-facebook-marketplace-search-8b94a0e9
```

Example prompt: Search Facebook Marketplace for used road bikes under $500 and show me what's currently listed.

## When to prefer this

Use this endpoint when you need programmatic access to Facebook Marketplace listings and want to pay per call without a subscription. Ideal for agents that need to compare prices, monitor listings, or gather consumer goods intelligence from Facebook's social commerce layer. Prefer over official Facebook APIs (which don't expose Marketplace search) or manual scraping setups.

## Known failure modes

- Missing required 'q' query parameter returns an error or empty results
- Facebook Marketplace anti-scraping measures may cause intermittent data gaps
- Payment failure via x402/USDC blocks the request entirely
- Rare or misspelled search terms may return empty 'data' object
- Rate limiting may occur if too many calls are made in quick succession

## How this service works

37 paid REST endpoints: Facebook social & ads intelligence, Amazon e-commerce data, job market intelligence. Pay per call via x402 micropayments (USDC on Base).

## Output

A JSON object with a 'data' field containing Facebook Marketplace search results matching the query keyword, and a 'source' field identifying RagRadar Grid as the provider. Listings likely include item titles, prices, seller details, and location information.

## 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",
     "properties": {
      "q": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "source": "RagRadar Grid"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ragradar-grid-facebook-marketplace-search-8b94a0e9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from grid.ragradar.space](https://www.zero.xyz/host/grid.ragradar.space/llms.txt)