# Losbeto Chain-TX Receipt Lookup

> Losbeto Chain-TX Receipt Lookup is a paid API for AI agents from api.losbeto.xyz, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Fetches a Base blockchain transaction receipt — status, confirmations, gas used, fee paid, logs count, and explorer link — with an optional plain-English explanation of the transaction.

## Facts

- Endpoint: GET https://api.losbeto.xyz/chain-tx?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-chain-tx-receipt-lookup-e436e67c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zv4OVcOTUW83xxvW6efCh

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-chain-tx-receipt-lookup-e436e67c
```

Example prompt: Can you look up Base transaction 0x4a3b2c1d... and tell me if it confirmed, how much gas it used, and give me a plain-English explanation of what it did?

## When to prefer this

Use this endpoint when you need a fast, pay-per-call lookup of a specific Base blockchain transaction receipt without running your own node. Especially useful when you also want a plain-English explanation of the transaction (explain=1) for non-technical users or automated audit logs. Prefer this over a generic block explorer scrape when you need structured JSON output ready for agent consumption.

## Known failure modes

- Invalid or malformed transaction hash returns an error response
- Transaction hash not found on Base network (wrong chain or typo)
- Very recent transactions may have zero confirmations or be pending
- explain=1 LLM explanation may fall back to a deterministic template if LLM is unavailable
- Network timeout if Base RPC is congested

## 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 object containing the transaction receipt fields: status (success/fail), number of confirmations, gas used, fee paid (in ETH/USDC), log event count, a link to the Base block explorer, and optionally a plain-English LLM-generated summary of what the transaction did.

## 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": [
      "explain",
      "hash"
     ],
     "properties": {
      "hash": {
       "type": "string",
       "description": "hash parameter"
      },
      "explain": {
       "type": "string",
       "description": "explain parameter"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "Transaction receipt on Base: status, confirmations, gas used, fee paid, logs count, explorer link — plus optional plain-English explanation (explain=1) written by the node's LLM bandit (deterministic fallback)."
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-chain-tx-receipt-lookup-e436e67c/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)