# Losbeto Portfolio Stress Test

> Losbeto Portfolio Stress Test is a paid API for AI agents from losbeto-production-dd7c.up.railway.app, paid per call via x402, $4.16/call, status unknown (last checked 2026-09-14).

Runs a stress test analysis on a financial portfolio to assess risk and resilience under adverse market conditions.

## Facts

- Endpoint: GET https://losbeto-production-dd7c.up.railway.app/portfolio-stress
- Price: $4.16/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-portfolio-stress-test-6cfc9429
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uYkQhu3_geEu2QxX2-bBU

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-portfolio-stress-test-6cfc9429
```

Example prompt: Can you stress test my current portfolio and show me how it would hold up under extreme market conditions — I want to see the risk metrics and worst-case scenarios for my crypto positions.

## When to prefer this

Choose this endpoint when you need on-demand portfolio stress testing with pay-per-call USDC micropayment pricing via the x402 protocol, especially for AI agent workflows that need automated risk assessments without a subscription. Best suited for crypto-native portfolios on Solana or Base ecosystems.

## Known failure modes

- Missing or malformed portfolio properties input returns an error
- Invalid asset identifiers cause computation failure
- Service unavailability on Railway infrastructure returns 5xx
- Insufficient USDC balance ($4.16 required) causes payment rejection via x402 protocol
- Empty or null properties field may return incomplete analysis

## How this service works

Losbeto: 67 endpoints x402 monetizados. Solana + Base. USDC micropayments para AI agents. Preços a partir de $0.003.

## Output

Returns a JSON object containing stress test results for the submitted portfolio, likely including risk metrics, scenario-based performance projections, drawdown estimates, and resilience scores under simulated adverse market conditions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-portfolio-stress-test-6cfc9429/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from losbeto-production-dd7c.up.railway.app](https://www.zero.xyz/host/losbeto-production-dd7c.up.railway.app/llms.txt)