Roundhouse

regimeshift.xyz

Returns the current USD SOFR benchmark rate for financial and DeFi integrations.

TradingLiveeip155:8453Exactvia facilitator:dexter
https://regimeshift.xyz/api/v1/rate/sofr/usd
Calls · 30d
9↓ 4.5%
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.
—
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
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/rate/sofr/usd",
    "mimeType": "application/json",
    "description": "Agent-SOFR — decentralized USD short-rate benchmark for AI agents. Weighted-median of 7 sources + variance + regime premiums. BNS-calibrated 6-mode classifier on 444k ETH/USDC 5-min bars (λ=1.097 closed-form). Open + IPFS-pinned methodology: agent-sofr-v1."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "horizon": "1h"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "rate": 4.115,
            "asset": "USD",
            "regime": {
              "mode": "RESTING",
              "mode_index": 0
            },
            "horizon": "1h",
            "computed_at": 1779380000,
            "horizon_sec": 3600,
            "methodology": {
              "url": "https://regimeshift.xyz/methodology/agent-sofr-v1",
              "version": "agent-sofr-v1"
            },
            "cache_ttl_sec": 60,
            "decomposition": {
              "base_anchor": 4.115,
              "variance_premium": 0,
              "regime_adjustment": 0
            }
          }
        }
      },
      "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": {
                  "horizon": {
                    "enum": [
                      "1h",
                      "1d",
                      "1w"
                    ],
                    "type": "string",
                    "description": "Rate horizon (e.g. 1h, 1d)"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "required": [
                  "ok",
                  "asset",
                  "rate",
                  "decomposition"
                ],
                "properties": {
                  "ok": {
                    "type": "boolean"
                  },
                  "rate": {
                    "type": "number",
                    "description": "Annualized agent-native short rate, %"
                  },
                  "asset": {
                    "type": "string"
                  },
                  "regime": {
                    "type": "object"
                  },
                  "horizon": {
                    "type": "string"
                  },
                  "sources": {
                    "type": "object"
                  },
                  "computed_at": {
                    "type": "integer"
                  },
                  "methodology": {
                    "type": "object"
                  },
                  "decomposition": {
                    "type": "object"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "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",
    "resource": "https://regimeshift.xyz/api/v1/rate/sofr/usd",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-09-23 17:13Z
Last indexed by Roundhouse
2026-09-24 07:15Z
Last enriched (probe, favicon, geo)
2026-09-16 18:15Z
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/rate/sofr/usd, 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.