# x402 Alert Trading Signals API

> x402 Alert Trading Signals API is a paid API for AI agents from x402-alert.vercel.app, paid per call via x402, $0.12/call, status unknown (last checked 2026-09-14).

Returns AI-generated or data-driven trading signals for financial instruments, paid per-call via USDC on Base using the x402 protocol.

## Facts

- Endpoint: POST https://x402-alert.vercel.app/api/trading-signals
- Price: $0.12/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-alert-trading-signals-api-6c5864d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BHAvoavHdvDcFItHn5T3v

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 x402-alert-trading-signals-api-6c5864d6 -d '<json body>'
```

Example prompt: Can you pull the latest trading signals for Bitcoin right now — I want to know if there's a buy or sell recommendation and how strong the signal is?

## When to prefer this

Choose this endpoint when you need fast, on-demand trading signals for a specific financial instrument and want to pay per-call without a subscription. Particularly useful for agent-driven or automated trading workflows that require real-time or near-real-time buy/sell recommendations integrated with USDC micropayments via the x402 protocol on Base.

## Known failure modes

- Missing or invalid asset symbol returns an error response
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required with no data
- Unsupported instrument type may return empty or null signal data
- Stale market data may result in delayed or low-confidence signals
- Malformed request body returns 400 Bad Request

## How this service works

14 paid financial API endpoints. Pay with USDC on Base using x402 protocol.

## Output

Returns structured trading signal data including directional recommendation (buy/sell/hold), signal strength or confidence score, and potentially supporting indicators or rationale for the flagged financial instrument.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-alert-trading-signals-api-6c5864d6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-alert.vercel.app](https://www.zero.xyz/host/x402-alert.vercel.app/llms.txt)