Roundhouse

market2000.xyz

Portfolio Optimizer — Markowitz mean-variance optimization for a basket of assets. HOW TO CALL: POST /optimize_portfolio?tickers=AAPL,MSFT,NVDA,SPY&period=1y&objective=max_sharpe PARAMETERS: tickers — comma-separated list of 2–30 ticker symbols (required) period — historical window: '6mo' | '1y' (default) | '2y' | '3y' | '5y' objective — 'max_sharpe' (default) | 'min_volatility' | 'max_return' risk_free_rate — annual risk-free rate for Sharpe ratio (default: 0.04) RESPONSE FIELDS: allocation — {ticker: weight} dict, weights sum to 1.0 metrics — expected_annual_return, annual_volatility, sharpe_ratio benchmark_equal_weight — same metrics for a naive equal-weight portfolio correlation_matrix — pairwise return correlations Cached 6 hours per (tickers, period, objective). PRICING: $0.10 per call.

DataLiveeip155:8453Exactvia facilitator:payAI
https://market2000.xyz/optimize_portfolio
Settlements · 30d
39↓ 100%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$1.83
Verified settled volume
39 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
—
Calls · 30d
Upstream's own call count for this endpoint, not ours.
—
Unique payers · 30d
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x7a9Fa18dd9402F8d8C55Afbd59ED707BAc0e9cAf

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x7a9Fa18dd9402F8d8C55Afbd59ED707BAc0e9cAf",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://market2000.xyz/optimize_portfolio",
      "description": "Portfolio Optimizer — Markowitz mean-variance optimization for a basket of assets.\n\nHOW TO CALL:\n  POST /optimize_portfolio?tickers=AAPL,MSFT,NVDA,SPY&period=1y&objective=max_sharpe\n\nPARAMETERS:\n  tickers       — comma-separated list of 2–30 ticker symbols (required)\n  period        — historical window: '6mo' | '1y' (default) | '2y' | '3y' | '5y'\n  objective     — 'max_sharpe' (default) | 'min_vol",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x7a9Fa18dd9402F8d8C55Afbd59ED707BAc0e9cAf",
      "scheme": "exact",
      "network": "eip155:42161",
      "mimeType": "application/json",
      "resource": "https://market2000.xyz/optimize_portfolio",
      "description": "Portfolio Optimizer — Markowitz mean-variance optimization for a basket of assets.\n\nHOW TO CALL:\n  POST /optimize_portfolio?tickers=AAPL,MSFT,NVDA,SPY&period=1y&objective=max_sharpe\n\nPARAMETERS:\n  tickers       — comma-separated list of 2–30 ticker symbols (required)\n  period        — historical window: '6mo' | '1y' (default) | '2y' | '3y' | '5y'\n  objective     — 'max_sharpe' (default) | 'min_vol",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "n2eV6XN2j1dR9bB7ReQHGjZVbWSknp4LA9XttCRYUC8",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "mimeType": "application/json",
      "resource": "https://market2000.xyz/optimize_portfolio",
      "description": "Portfolio Optimizer — Markowitz mean-variance optimization for a basket of assets.\n\nHOW TO CALL:\n  POST /optimize_portfolio?tickers=AAPL,MSFT,NVDA,SPY&period=1y&objective=max_sharpe\n\nPARAMETERS:\n  tickers       — comma-separated list of 2–30 ticker symbols (required)\n  period        — historical window: '6mo' | '1y' (default) | '2y' | '3y' | '5y'\n  objective     — 'max_sharpe' (default) | 'min_vol",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "period": "1y",
            "tickers": "AAPL,MSFT,NVDA,SPY",
            "objective": "max_sharpe"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "cached": false,
            "period": "1y",
            "metrics": {
              "sharpe_ratio": 1.402,
              "annual_volatility": 0.194,
              "expected_annual_return": 0.312
            },
            "objective": "max_sharpe",
            "allocation": {
              "SPY": 0.33,
              "AAPL": 0.54,
              "NVDA": 0.13
            },
            "fetched_at": "2026-06-07T10:00:00Z",
            "tickers_used": [
              "AAPL",
              "MSFT",
              "NVDA",
              "SPY"
            ],
            "risk_free_rate": 0.04,
            "benchmark_equal_weight": {
              "sharpe_ratio": 1.08,
              "annual_volatility": 0.213,
              "expected_annual_return": 0.271
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "tickers"
                ],
                "properties": {
                  "period": {
                    "enum": [
                      "6mo",
                      "1y",
                      "2y",
                      "3y",
                      "5y"
                    ],
                    "type": "string",
                    "description": "Historical data window used to estimate returns and covariance (default: 1y)"
                  },
                  "tickers": {
                    "type": "string",
                    "description": "Comma-separated list of 2–30 ticker symbols (e.g. 'AAPL,MSFT,NVDA,SPY')"
                  },
                  "objective": {
                    "enum": [
                      "max_sharpe",
                      "min_volatility",
                      "max_return"
                    ],
                    "type": "string",
                    "description": "Optimization objective (default: max_sharpe)"
                  },
                  "risk_free_rate": {
                    "type": "number",
                    "description": "Annual risk-free rate for Sharpe calculation (default: 0.04 = 4%)"
                  }
                }
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "objective",
                  "period",
                  "tickers_used",
                  "allocation",
                  "metrics"
                ],
                "properties": {
                  "cached": {
                    "type": "boolean"
                  },
                  "period": {
                    "type": "string"
                  },
                  "metrics": {
                    "type": "object",
                    "properties": {
                      "sharpe_ratio": {
                        "type": "number"
                      },
                      "annual_volatility": {
                        "type": "number"
                      },
                      "expected_annual_return": {
                        "type": "number"
                      }
                    }
                  },
                  "objective": {
                    "type": "string"
                  },
                  "allocation": {
                    "type": "object",
                    "description": "Ticker → optimal weight (0–1)"
                  },
                  "fetched_at": {
                    "type": "string"
                  },
                  "tickers_used": {
                    "type": "array",
                    "items": {
                      "type": "string"
                    }
                  },
                  "correlation_matrix": {
                    "type": "object"
                  },
                  "benchmark_equal_weight": {
                    "type": "object"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 1
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x7a9F…e9cAf. The signed payment is good for 5 minutes.

Paid to
0x7a9F…e9cAf
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x7a9Fa18dd9402F8d8C55Afbd59ED707BAc0e9cAf",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-08-29 13:04Z
Last indexed by Roundhouse
2026-09-24 01:15Z
Last enriched (probe, favicon, geo)
2026-09-14 22:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service market2000.xyz and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=market2000.xyz'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://market2000.xyz/optimize_portfolio, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.