# Maxwell International Market Quote — BTC/USDT Real-Time Price

> Maxwell International Market Quote — BTC/USDT Real-Time Price is a paid API for AI agents from api.maxwellinternational.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Returns a real-time BTC/USDT spot price quote sourced from Binance WebSocket trade feed

## Facts

- Endpoint: GET https://api.maxwellinternational.ai/v1/market/quote?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/maxwell-international-market-quote-btc-usdt-real-time-price-6b86a4f3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Pvic9AxCJCdw3dH1IU_Pc

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 maxwell-international-market-quote-btc-usdt-real-time-price-6b86a4f3
```

Example prompt: What is the current Bitcoin price in USDT right now — can you pull the latest live quote?

## When to prefer this

Choose this endpoint when you need a real-time, low-latency BTC/USDT spot price sourced directly from Binance trade stream with per-call micropayment pricing via x402. Suitable for agents that need fresh tick-level Bitcoin price data without a subscription. Note: the domain is listed for sale, so availability and long-term reliability may be limited.

## Known failure modes

- Upstream Binance WebSocket disconnection may return stale or unavailable price data
- Payment of 0.005 USDC required per call via x402; missing or invalid payment returns HTTP 402
- Invalid query parameters may return a 400 Bad Request
- Domain is listed for sale, so service continuity is uncertain and the endpoint may become unavailable

## How this service works

Latest crypto trade tick from Binance public WebSocket cache. Pass symbol=BTCUSDT (also ETHUSDT, SOLUSDT, BNBUSDT, XRPUSDT).

## Output

Returns a JSON object with ok status, the trade quantity (qty), the current BTC/USDT price (price as a numeric value), the data source identifier ('binance-ws-trade'), the trading symbol ('BTCUSDT'), the event timestamp, the trade timestamp, and an ISO 8601 updatedAt field indicating when the data was last refreshed.

## 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"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "qty": 0.0003,
  "price": 83913,
  "source": "binance-ws-trade",
  "symbol": "BTCUSDT",
  "eventTime": 1790405078383,
  "tradeTime": 1790405078382,
  "updatedAt": "2026-09-26T06:44:38.518Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/maxwell-international-market-quote-btc-usdt-real-time-price-6b86a4f3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.maxwellinternational.ai](https://www.zero.xyz/host/api.maxwellinternational.ai/llms.txt)