# SociaVault Facebook Marketplace Search

> SociaVault Facebook Marketplace Search is a paid API for AI agents from social.gedx402.com, paid per call via x402, $0.014/call, status unknown (last checked 2026-09-14).

Search Facebook Marketplace listings by location, keyword, price range, and filters via a paid proxy API

## Facts

- Endpoint: GET https://social.gedx402.com/v1/sociavault/facebook-marketplace/search
- Price: $0.014/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sociavault-facebook-marketplace-search-9b8f01a9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6rNUHwTZmxVuWfY1S4st5

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 sociavault-facebook-marketplace-search-9b8f01a9
```

Example prompt: Search Facebook Marketplace near coordinates 37.7749, -122.4194 for 'vintage bicycle' within 25 km, priced between $50 and $500, in good condition, sorted by price, and return 20 results.

## When to prefer this

Use this endpoint when you need to programmatically search Facebook Marketplace listings by geographic location with rich filtering (price, condition, radius, delivery method) and are willing to pay per-call via x402 micropayment. Prefer this over manual browsing or scraping when you need structured listing data at scale or in an automated workflow.

## Known failure modes

- Payment not accepted or x402 auth fails — endpoint returns 402 with payment requirements
- Invalid coordinates (lat/lng out of range) — results may be empty or error
- No listings found matching filters — success:true but empty data object
- Rate limiting or upstream Facebook scraping block — provider may return partial or no data
- Invalid cursor for pagination — returns error or restarts from beginning
- Unsupported sort_by or condition enum values — may return validation error

## How this service works

SociaVault API proxy — facebook-marketplace-search. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.

## Output

A JSON object with a 'data' field containing Facebook Marketplace listing results (items, prices, descriptions, seller info, etc.), a 'success' boolean, and a 'provider' field indicating 'sociavault'.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "lat": {
   "type": "number"
  },
  "lng": {
   "type": "number"
  },
  "count": {
   "type": "integer"
  },
  "query": {
   "type": "string"
  },
  "cursor": {
   "type": "string"
  },
  "sort_by": {
   "type": "string"
  },
  "condition": {
   "type": "string"
  },
  "max_price": {
   "type": "number"
  },
  "min_price": {
   "type": "number"
  },
  "radius_km": {
   "type": "number"
  },
  "date_listed": {
   "type": "string"
  },
  "availability": {
   "type": "string"
  },
  "delivery_method": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "success": true,
  "provider": "sociavault"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sociavault-facebook-marketplace-search-9b8f01a9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from social.gedx402.com](https://www.zero.xyz/host/social.gedx402.com/llms.txt)