# SwapHunt Coin Strength vs BTC

> SwapHunt Coin Strength vs BTC is a paid API for AI agents from x402.swaphunt.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns the relative strength of a cryptocurrency coin versus BTC over a specified period, expressed as a category (very_strong to very_weak) and a numeric score.

## Facts

- Endpoint: GET https://x402.swaphunt.dev/v1/market/coin-strength
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/swaphunt-coin-strength-vs-btc-15fa98ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p1UgoGeVo0ybk8iQXRWn0

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 swaphunt-coin-strength-vs-btc-15fa98ca
```

Example prompt: What's the relative strength of SOL versus BTC over the last 7 days — give me the strength category and score so I can decide whether it's worth entering a position.

## When to prefer this

Use this endpoint when you need to quickly rank or benchmark a specific coin's momentum against Bitcoin before entering a trade. Prefer it over raw price data endpoints when you want a pre-computed categorical strength signal rather than raw OHLCV data. It complements volatility and session endpoints on the same platform by adding a BTC-relative momentum dimension.

## Known failure modes

- Invalid or unsupported coin symbol returns an error or empty result
- Unsupported period value outside 24h/7d/30d may return a validation error
- Unsupported quote currency may cause a bad request response
- Network or payment failure results in a 402 or connection error
- Rate limiting or quota exhaustion may block repeated rapid calls

## How this service works

Relative strength of a coin vs BTC over a period, returned as a category (very_strong → very_weak) plus a numeric score. Use to rank a coin's momentum against the benchmark before entering. A strength read, not a price target.

## Output

Returns a strength category label (e.g. very_strong, strong, neutral, weak, very_weak) and a numeric score indicating how strongly the requested coin has performed relative to BTC over the chosen period. No price targets included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "coin": {
       "type": "string",
       "default": "ETH",
       "description": "Coin symbol"
      },
      "quote": {
       "type": "string",
       "default": "USDT",
       "description": "Quote currency (USDT, USDC, EUR)"
      },
      "period": {
       "type": "string",
       "default": "24h",
       "description": "Period (24h, 7d, 30d)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/swaphunt-coin-strength-vs-btc-15fa98ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.swaphunt.dev](https://www.zero.xyz/host/x402.swaphunt.dev/llms.txt)