# x402 Crypto Trading Signals API

> x402 Crypto Trading Signals API is a paid API for AI agents from x402-crypto-apis.onrender.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-16).

Returns real-time trading signals (BUY/SELL/HOLD), RSI, signal strength, and current price for a given cryptocurrency, powered by CoinGecko data.

## Facts

- Endpoint: GET https://x402-crypto-apis.onrender.com/api/crypto/signals
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-crypto-trading-signals-api-03ff4e66
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bNV16p3ocqRteMAOCeJHn

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-crypto-trading-signals-api-03ff4e66
```

Example prompt: What's the current trading signal for Bitcoin — should I buy, sell, or hold, and how strong is that signal?

## When to prefer this

Use this endpoint when you need a quick, opinionated BUY/SELL/HOLD trading signal with RSI for a specific cryptocurrency, especially in agent workflows that need a structured recommendation rather than raw price data. Prefer this over raw price endpoints when decision-support output is needed.

## Known failure modes

- Invalid or unrecognized coin ID returns an error — must use CoinGecko coin IDs (e.g. 'bitcoin', not 'BTC')
- Payment failure via x402 protocol if USDC balance is insufficient
- CoinGecko upstream API outage may cause delayed or missing data
- Rate limiting if too many calls are made in a short period

## How this service works

AI Agent cryptocurrency data APIs with x402 v2 payment protocol. Real-time prices, market data, trading signals, and market overview powered by CoinGecko.

## Output

Returns a JSON object with the coin ID, current price, RSI value, a BUY/SELL/HOLD signal, signal strength (STRONG/MODERATE/NEUTRAL), a human-readable recommendation string, and a timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "coin": {
   "type": "string",
   "description": "CoinGecko coin ID (e.g. bitcoin, ethereum, solana)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rsi": {
   "type": "number"
  },
  "coin": {
   "type": "string"
  },
  "signal": {
   "enum": [
    "BUY",
    "SELL",
    "HOLD"
   ],
   "type": "string"
  },
  "strength": {
   "enum": [
    "STRONG",
    "MODERATE",
    "NEUTRAL"
   ],
   "type": "string"
  },
  "timestamp": {
   "type": "string"
  },
  "current_price": {
   "type": "number"
  },
  "recommendation": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-crypto-trading-signals-api-03ff4e66/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-crypto-apis.onrender.com](https://www.zero.xyz/host/x402-crypto-apis.onrender.com/llms.txt)