# Losbeto Mempool Monitor

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

Fetches current blockchain mempool data for trading and transaction monitoring via x402 micropayment-gated API

## Facts

- Endpoint: GET https://api.losbeto.xyz/mempool?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-mempool-monitor-aad19bb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_6afnJL_hT7wasMIFdRLtq

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-mempool-monitor-aad19bb0
```

Example prompt: Can you pull the current mempool data so I can see what pending transactions are queued up on-chain right now?

## When to prefer this

Choose this endpoint when you need real-time mempool visibility for an AI trading agent operating on Solana or Base chains, especially when you want micropayment-per-call pricing ($0.008 USDC) rather than a subscription. Best suited for agents that need sporadic or event-driven mempool snapshots rather than continuous streaming.

## Known failure modes

- Missing or invalid x402 payment header returns 402 Payment Required
- Malformed properties filter parameter may return 400 Bad Request
- Network or upstream blockchain node unavailability may return 503 or empty response
- Expired or insufficient USDC payment results in access denial
- Rate limiting if too many calls are made in quick succession

## How this service works

Live Solana network conditions: pending transaction pressure, current fee levels and priority-fee guidance for agents timing an execution.

## Output

Returns a JSON object containing current mempool state including pending/unconfirmed transactions visible in the blockchain mempool, likely including transaction hashes, fee data, sizes, and queue depth relevant for trading decisions.

## 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": [],
     "properties": {
      "format": {
       "type": "string",
       "description": "Response format (json)"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "Live Solana network conditions: pending transaction pressure, current fee levels and priority-fee guidance for agents timing an execution."
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ts": 1792450947,
  "version": "48.32.1-WEBOPS",
  "network_load": "normal",
  "fee_usd_estimate": 0,
  "recommended_next": [
   {
    "why": "same category as /mempool",
    "endpoint": "/onchain-credit",
    "price_usdc": "0.0600"
   },
   {
    "why": "same category as /mempool",
    "endpoint": "/holder-concentration",
    "price_usdc": "0.0500"
   }
  ],
  "priority_fee_lamports": {
   "n": 150,
   "p90": 0,
   "mean": 0
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-mempool-monitor-aad19bb0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.losbeto.xyz](https://www.zero.xyz/host/api.losbeto.xyz/llms.txt)