# signals.nsgoods.org – Crypto Trading Signal

> signals.nsgoods.org – Crypto Trading Signal is a paid API for AI agents from signals.nsgoods.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns a live BUY/SELL/HOLD trading signal with confidence score for a given crypto/USD pair, derived from a multi-timeframe analysis engine, with ECDSA signature for authenticity.

## Facts

- Endpoint: GET https://signals.nsgoods.org/signals
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signals-nsgoods-org-crypto-trading-signal-37c4ca6a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BJ_RZkCa_tzVWbk2A6ByO

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 signals-nsgoods-org-crypto-trading-signal-37c4ca6a
```

Example prompt: What's the current trading signal for ETH/USD — BUY, SELL, or HOLD — and how confident is the multi-timeframe engine right now?

## When to prefer this

Use this endpoint when an AI finance agent needs a quick, machine-verifiable BUY/SELL/HOLD verdict for a specific crypto/USD spot pair, especially when cryptographic authenticity (ECDSA signature) of the signal is important. Prefer this over raw price feeds when you need an already-computed directional recommendation with a confidence score rather than raw OHLCV data.

## Known failure modes

- Invalid or inactive pair returns an error (pair must be a valid Kraken */USD spot pair)
- Missing or malformed pair parameter may fall back to BTC/USD default
- Network or upstream Kraken data unavailability may cause timeout or 5xx error
- Payment not provided or invalid USDC payment results in 402 Payment Required
- Stale data if Kraken feed is lagging — check generated_at timestamp

## How this service works

Live market-state data for one crypto pair: BUY/SELL/HOLD state + confidence from a multi-timeframe engine. Machine-readable, ECDSA-signed. Input data for AI finance agents (USDC pay-per-call).

## Output

A JSON object containing: the crypto pair, a BUY/SELL/HOLD signal enum, a confidence score between 0 and 1, the timeframe analyzed, a generated_at ISO timestamp, an ECDSA signature string, the signer identity, and a disclaimer. Costs $0.01 USDC per call via x402.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "pair": "BTC/USD"
  }
 }
}
```

## 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",
     "required": [],
     "properties": {
      "pair": {
       "type": "string",
       "default": "BTC/USD",
       "description": "Any active Kraken */USD spot pair (e.g. BTC/USD, ETH/USD)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "pair",
      "signal",
      "confidence",
      "timeframe",
      "generated_at"
     ],
     "properties": {
      "pair": {
       "type": "string"
      },
      "signal": {
       "enum": [
        "BUY",
        "SELL",
        "HOLD"
       ],
       "type": "string"
      },
      "signature": {
       "type": "string"
      },
      "signed_by": {
       "type": "string"
      },
      "timeframe": {
       "type": "string"
      },
      "confidence": {
       "type": "number",
       "maximum": 1,
       "minimum": 0
      },
      "disclaimer": {
       "type": "string"
      },
      "generated_at": {
       "type": "string",
       "format": "date-time"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "pair": "BTC/USD",
  "signal": "HOLD",
  "signature": "0x10fafe37c311ef9f70d1c5b119454a553c82c0bb9981b09560485c3dc8072fc47bebad8022f12b240e02c38cbe4243a1f10b63f06502356c263dea35571974411c",
  "signed_by": "0x5e63d01d6A266BC17f577B80199a2a07B15053C7",
  "timeframe": "1m",
  "confidence": 0.42,
  "disclaimer": "Educational signal from a multi-timeframe Kraken strategy. Not financial advice. Markets can move against any signal; use independent risk management.",
  "generated_at": "2026-06-06T22:00:00+00:00"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signals-nsgoods-org-crypto-trading-signal-37c4ca6a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signals.nsgoods.org](https://www.zero.xyz/host/signals.nsgoods.org/llms.txt)