# XAUUSD Real-Time Precious Metals Price (Blocksize Capital)

> XAUUSD Real-Time Precious Metals Price (Blocksize Capital) is a paid API for AI agents from mcp.blocksize.info, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Returns real-time market data for gold (XAU) priced in US dollars (USD) from Blocksize Capital.

## Facts

- Endpoint: GET https://mcp.blocksize.info/v1/metal/XAUUSD
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402, finance
- Canonical page: https://www.zero.xyz/c/xauusd-real-time-precious-metals-price-blocksize-capital-a4508361
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q9ZuSCADM5DvY7vPRFDlE

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 xauusd-real-time-precious-metals-price-blocksize-capital-a4508361
```

Example prompt: What is the current real-time price of gold in USD — give me the live XAUUSD quote from Blocksize Capital right now.

## When to prefer this

Use this endpoint when you need real-time gold (XAU/USD) spot pricing from Blocksize Capital specifically, especially in x402 micropayment-enabled agent workflows. Prefer this over generic market APIs when you need programmatic, pay-per-call precious metals data without subscription overhead.

## Known failure modes

- Payment not received or invalid x402 payment header — returns 402 Payment Required
- Invalid or unsupported route — returns 404 Not Found
- Upstream market data feed unavailable — returns 503 or error status in body
- Rate limit exceeded — returns 429 Too Many Requests

## How this service works

Return real-time precious metals market data for the listed XAUUSD sample route.

## Output

A real-time market data snapshot for XAUUSD (gold vs US dollar), including price data and metadata from Blocksize Capital, with a status indicator confirming data freshness.

## 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": {},
     "additionalProperties": false
    }
   },
   "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/xauusd-real-time-precious-metals-price-blocksize-capital-a4508361/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp.blocksize.info](https://www.zero.xyz/host/mcp.blocksize.info/llms.txt)