Roundhouse AI

regimeshift.xyz

Maximum-safe LTV for collateralized agent loans. Computed from (cv + λ·j²)-derived variance over loan horizon + 6-mode regime cap. Lender-specifiable max_default_prob. Returns binding constraint (math vs regime_cap) so agents can see WHY the cap is what it is. Same calibrator as Agent-SOFR rate endpoint.

InfraLiveeip155:8453Exactvia cdp
https://regimeshift.xyz/api/v1/risk/max-ltv
Calls · 30d
9↑ 6.8%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$1.13
Verified settled volume
1,126 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
10
Calls · 30d
Upstream's own call count for this endpoint, not ours.
6
Unique payers · 30d
Last called 2026-09-23 03:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B

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": "0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B",
      "amount": "1000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://regimeshift.xyz/api/v1/risk/max-ltv",
    "mimeType": "application/json",
    "description": "Maximum-safe LTV for collateralized agent loans. Computed from (cv + λ·j²)-derived variance over loan horizon + 6-mode regime cap. Lender-specifiable max_default_prob. Returns binding constraint (math vs regime_cap) so agents can see WHY the cap is what it is. Same calibrator as Agent-SOFR rate endpoint."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "asset": "ETH",
            "duration_sec": 3600,
            "max_default_prob": 0.001
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "regime": "NORMAL",
            "max_ltv": 0.92,
            "sigma_T": 0.0051,
            "computed_at": 1779380000,
            "math_max_ltv": 0.97,
            "regime_cap_ltv": 0.92,
            "binding_constraint": "regime_cap"
          }
        }
      },
      "schema": {
        "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": [],
                "properties": {
                  "asset": {
                    "enum": [
                      "ETH",
                      "BTC"
                    ],
                    "type": "string",
                    "description": "Collateral asset"
                  },
                  "duration_sec": {
                    "type": "integer",
                    "maximum": 86400,
                    "minimum": 120,
                    "description": "Loan horizon in seconds"
                  },
                  "max_default_prob": {
                    "type": "number",
                    "maximum": 0.01,
                    "minimum": 0,
                    "description": "Lender's tolerated default probability"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "ok",
                  "max_ltv"
                ],
                "properties": {
                  "ok": {
                    "type": "boolean"
                  },
                  "regime": {
                    "type": "string"
                  },
                  "max_ltv": {
                    "type": "number"
                  },
                  "sigma_T": {
                    "type": "number"
                  },
                  "math_max_ltv": {
                    "type": "number"
                  },
                  "regime_cap_ltv": {
                    "type": "number"
                  },
                  "binding_constraint": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0x82B1…acd7B. The signed payment is good for 5 minutes.

Paid to
0x82B1…acd7B
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "asset": "ETH",
          "duration_sec": 3600,
          "max_default_prob": 0.001
        }
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "regime": "NORMAL",
          "max_ltv": 0.92,
          "sigma_T": 0.0051,
          "computed_at": 1779380000,
          "math_max_ltv": 0.97,
          "regime_cap_ltv": 0.92,
          "binding_constraint": "regime_cap"
        }
      }
    },
    "schema": {
      "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": [],
              "properties": {
                "asset": {
                  "enum": [
                    "ETH",
                    "BTC"
                  ],
                  "type": "string",
                  "description": "Collateral asset"
                },
                "duration_sec": {
                  "type": "integer",
                  "maximum": 86400,
                  "minimum": 120,
                  "description": "Loan horizon in seconds"
                },
                "max_default_prob": {
                  "type": "number",
                  "maximum": 0.01,
                  "minimum": 0,
                  "description": "Lender's tolerated default probability"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "ok",
                "max_ltv"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "regime": {
                  "type": "string"
                },
                "max_ltv": {
                  "type": "number"
                },
                "sigma_T": {
                  "type": "number"
                },
                "math_max_ltv": {
                  "type": "number"
                },
                "regime_cap_ltv": {
                  "type": "number"
                },
                "binding_constraint": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-23 03:26Z
Last indexed by Roundhouse
2026-09-24 12:10Z
Last enriched (probe, favicon, geo)
2026-09-21 11:45Z
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far. 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 regimeshift.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=regimeshift.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://regimeshift.xyz/api/v1/risk/max-ltv, 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.