# SignalDesk AI Crypto Price Lookup

> SignalDesk AI Crypto Price Lookup is a paid API for AI agents from x402-agent.kariguetoazul.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-09).

Returns the current USD price, 24-hour change, and market cap for a specified cryptocurrency by coin ID

## Facts

- Endpoint: GET https://x402-agent.kariguetoazul.workers.dev/api/crypto?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-09
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signaldesk-ai-crypto-price-lookup-b3d58b7f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_sdMS2twwLvNkGxYOwsZVC

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 signaldesk-ai-crypto-price-lookup-b3d58b7f
```

Example prompt: What's the current price of bitcoin, including its 24-hour change and market cap?

## When to prefer this

Choose this endpoint when you need a quick, cheap ($0.002 USDC) lookup of a single coin's current price, 24-hour change, and market cap in USD. It is ideal for lightweight agent workflows that need a real-time price signal without requiring a full-featured exchange API key or heavy data subscription. Not suited for historical data, batch multi-coin queries, or ticker-symbol-based lookups.

## Known failure modes

- Invalid or unrecognized coin ID returns an error — must use CoinGecko-style IDs like 'bitcoin', not ticker symbols like 'BTC'
- Payment failure (402) if x402 USDC payment of $0.002 is not included or rejected
- Rate limiting or quota exhaustion under free tier bounds may result in 429 errors
- Network timeout if Cloudflare Worker is under load or cold-starting

## How this service works

Evidence-backed autonomous AI jobs and paid data tools. Queue/D1/cron run outside the chat; free quotas and bounded execution apply.

## Output

A JSON object containing the coin's current USD price (e.g. 64250.12), the coin ID string, the 24-hour percentage change (e.g. -1.84), and the total market cap in USD (e.g. 1.27 trillion).

## 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": [
      "coin"
     ],
     "properties": {
      "coin": {
       "type": "string",
       "description": "Coin id, e.g. bitcoin, ethereum, solana"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "usd": 64250.12,
  "coin": "bitcoin",
  "change_24h": -1.84,
  "market_cap_usd": 1270000000000
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signaldesk-ai-crypto-price-lookup-b3d58b7f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-agent.kariguetoazul.workers.dev](https://www.zero.xyz/host/x402-agent.kariguetoazul.workers.dev/llms.txt)