# Losbeto Paid Catalog Concierge (Best Endpoint Finder)

> Losbeto Paid Catalog Concierge (Best Endpoint Finder) is a paid API for AI agents from api.losbeto.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-21).

Returns the single best Losbeto API endpoint for a plain-English task description, ranked by semantic search with cross-encoder reranking, including price, free-sample link, payment URL, and co-purchase stats.

## Facts

- Endpoint: GET https://api.losbeto.xyz/api/v1/best?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-paid-catalog-concierge-best-endpoint-finder-df66fccc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_W7-xqxyUYIPyZpeN88pUv

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-paid-catalog-concierge-best-endpoint-finder-df66fccc
```

Example prompt: Which Losbeto endpoint should I use if I want to get multi-oracle crypto price consensus for my trading bot? Give me the best match with its price and a payment link.

## When to prefer this

Use this endpoint when an agent needs to discover which specific Losbeto endpoint to call for a given task, rather than calling a known endpoint directly. It is the entry point for agents unfamiliar with the Losbeto catalog, or when building dynamic routing logic that selects APIs based on user intent at runtime.

## Known failure modes

- Missing required 'task' query parameter returns the full catalog or an error
- Vague or ambiguous task description may return a low-confidence or incorrect endpoint match
- Service unavailable if x402 payment fails or network is congested
- No matching endpoint found if the task is outside Losbeto's data domains

## How this service works

Which endpoint should you buy for your task? Paid catalog concierge: send ?task=<plain English> and get the single best Losbeto endpoint for it — ranked by local semantic search (MiniLM ONNX with cross-encoder rerank)...

## Output

A JSON object identifying the single best-matching Losbeto endpoint for the given task, including its name, description, price per call, a free-sample link, a USDC payment URL, and a list of endpoints that other agents commonly purchase alongside it (derived from public on-chain co-purchase statistics).

## 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": [
      "task"
     ],
     "properties": {
      "task": {
       "type": "string",
       "description": "task parameter"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "description": "Which endpoint should you buy for your task? Paid catalog concierge: send ?task=<plain English> and get the single best Losbeto endpoint for it — ranked by local semantic search (MiniLM ONNX with cross-encoder rerank) — with price, free-sample link, payment URL and what agents who bought it also bought (real co-purchase stats from the public ledger). Called with no ?task= it returns..."
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-paid-catalog-concierge-best-endpoint-finder-df66fccc/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)