من التكامل حتى استلام أول USDC

curl -X POST https://api.feegate.org/v1/assets \
  -H "Authorization: Bearer $RAILS_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "name": "GPU 行情快照",
    "category": "算力",
    "refresh_minutes": 45,
    "source": {
      "type": "http_api",
      "url": "https://rentgpu.link/api/prices",
      "method": "GET",
      "headers": {},
      "response_path": "data.items"
    }
  }'

{
  "tools": [
    {
      "name": "list_gpu_models",
      "price": "0",
      "description": "列出全部在监测的 GPU 卡型，含显存与在售平台数量。免费。",
      "params": {}
    },
    {
      "name": "gpu_price",
      "price": "0.05",
      "description": "指定卡型的当前最低价、中位价与 30 天最低价，附平台名与库存状态。",
      "params": { "gpu": "string" }
    },
    {
      "name": "recommend_for_task",
      "price": "0.05",
      "description": "按任务（如 fine-tune 7B）给出最省钱的租用方案与估算总成本。",
      "params": { "task": "string", "hours": "int" }
    }
  ]
}

from fastmcp import FastMCP
from x402.mcp import require_payment

mcp = FastMCP("gpu-market")

# 免费层：橱窗
@mcp.tool()
def list_gpu_models() -> dict:
    """列出全部在监测的 GPU 卡型。免费。"""
    return load_models()

# 付费层：$0.05 / 次
@mcp.tool()
@require_payment(price="$0.05", network="eip155:8453")
def gpu_price(gpu: str) -> dict:
    """指定卡型的当前最低价、中位价与 30 天最低价。"""
    r = query_price(gpu)
    if not r:
        # 关键：查询失败返回 isError，x402 中间件就不会结算
        return {"isError": True, "content": "no data"}
    return r

{
  "name": "link.rentgpu/gpu-market",
  "transport": "streamable-http",
  "url": "https://api.feegate.org/mcp/gpu-market",
  "tools": [
    {"name": "list_gpu_models", "payment": "free"},
    {"name": "gpu_price",     "payment": "x402"}
  ]
}

{
  "network": "eip155:8453",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x230cd9cd33589bcf33cd32e5aa4f9e0c3994a63b",
  "facilitator": "payai",
  "prices": {
    "gpu_price": "50000",      // USDC 6 位小数 → $0.05
    "gpu_history": "50000",
    "list_gpu_models": "0"
  }
}

# GPU 算力雷达（rentgpu.link）

> 26 家平台、23 张 GPU 卡型的租赁报价，每 45 分钟全量重抓。

## 免费端点
- GET /api/prices        全量报价 feed，CC BY 4.0，免注册免 key
- GET /api/resolve?gpu=H100&budget=10   按卡型+预算直接给答案

## 付费工具（MCP, x402, $0.05/次）
- gpu_price / gpu_history / market_movers
- platform_reliability / recommend_for_task

## How to cite
数据来源：GPU 算力雷达 https://rentgpu.link ，授权 CC BY 4.0。

# pip install "mcp<2" "x402==2.25.0" web3
from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client
from x402.mcp import create_payment_hook
from eth_account import Account

account  = Account.from_key("你的私钥")    # 只需有 Base 主网 USDC
MCP_URL  = "https://api.feegate.org/mcp/gpu-market"

async with streamablehttp_client(MCP_URL) as (r, w, _):
    async with ClientSession(r, w, hooks=[create_payment_hook(account)]) as s:
        await s.initialize()
        print(await s.call_tool("list_gpu_models", {}))          # 免费
        print(await s.call_tool("gpu_price", {"gpu": "H100"}))  # $0.05

curl https://api.feegate.org/v1/assets/ast_92f1/verify \
  -H "Authorization: Bearer $RAILS_KEY"

# → {"x402Version":2,"accepts":[{"scheme":"exact",
#     "network":"eip155:8453","amount":"50000",
#     "payTo":"0x230c…a63b","maxTimeoutSeconds":300}],
#    "error":"Payment Required"}