# Losbeto DEX Screener

> Losbeto DEX Screener is a paid API for AI agents from markets.losbeto.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).

Returns DEX (decentralized exchange) screening data for crypto trading pairs, paid via x402 USDC micropayments.

## Facts

- Endpoint: GET https://markets.losbeto.xyz/dex-screen?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-dex-screener-68409991
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BGT4UyW1bGVH-ihDf3dWh

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 losbeto-dex-screener-68409991
```

Example prompt: Pull the latest DEX screener data for me — I want to see trading pair metrics and liquidity info for tokens on Solana or Base right now.

## When to prefer this

Choose this endpoint when you need on-chain DEX trading pair data (price, volume, liquidity) specifically for Solana or Base networks and want to pay per-call via x402 USDC micropayments. Prefer this over traditional REST APIs when operating in an AI agent context that supports x402 payment flows.

## Known failure modes

- Missing or malformed properties parameter returns an error or empty result
- Payment failure (x402) if USDC balance is insufficient — returns 402 Payment Required
- Network unavailability returns 5xx error
- No matching pairs found returns empty JSON array
- Rate limiting if too many requests are made rapidly

## How this service works

OpenAI-compatible LLM gateway at $0.005/call — change base_url, pay in USDC. Plus pay-per-call market data: multi-oracle price consensus, sentiment, forex, equities, commodities, Brazil macro (BCB/B3) and crypto. No API keys, no accounts. USDC on Base, Solana, Algorand and Polygon via x402.

## Output

A JSON response containing DEX trading pair data, likely including token pair identifiers, price, volume, liquidity metrics, and exchange information for pairs on Solana and/or Base networks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "queryParams": {
     "type": "object",
     "required": [
      "query"
     ],
     "properties": {
      "query": {
       "type": "string",
       "description": "Free-text search query"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "DexScreener pair snapshot with liquidity, 24h volume and pair age, filtered to what is actually tradable. [Wrapper over a free public source (https://api.dexscreener.com (public, free)) — you pay for one schema, one payment rail, signed receipts and monitored uptime.]"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-dex-screener-68409991/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from markets.losbeto.xyz](https://www.zero.xyz/host/markets.losbeto.xyz/llms.txt)