regimeshift.xyz
BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL.
OtherLiveeip155:8453Exactvia cdp
Calls · 30d
111↓ 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.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
86
Calls · 30d
Upstream's own call count for this endpoint, not ours.
16
Unique payers · 30d
Last called 2026-09-22 19:22Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x82B17D0bb4De9ae6c3491257B60E8245e70acd7BThe wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.
Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Provider
The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.
Live 402 challenge
Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.
{
"error": "Payment required",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
],
"resource": {
"url": "https://regimeshift.xyz/api/v1/asset/btc/vrp",
"mimeType": "application/json",
"description": "BTC Volatility Risk Premium — DVOL minus Parkinson realized vol (72h). Positive = sell-vol opportunity, negative = buy-vol. Response includes regime classification (LOW/MID/HIGH), raw inputs for audit (DVOL, RV_72h, RV_6h, spot), timestamp, and open methodology URL."
},
"extensions": {
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"ok": true,
"vrp": 0.1525,
"asset": "ETH",
"quiet": true,
"inputs": {
"dvol": 52.58,
"rv_6h": 40.204,
"rv_72h": 52.4275,
"source": "Deribit public API (DVOL + ETH-PERPETUAL OHLC)",
"spot_usd": 2130.2,
"timestamp": "2026-05-20T14:00:00+00:00"
},
"regime": "MID",
"computed_at": 1779284275,
"methodology": "https://regimeshift.xyz/methodology/vrp-v1",
"cache_ttl_sec": 60
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"ok",
"asset",
"vrp",
"regime",
"inputs"
],
"properties": {
"ok": {
"type": "boolean",
"description": "Request status"
},
"vrp": {
"type": "number",
"description": "DVOL − Parkinson RV(72h), in vol points. Positive = sell-vol opportunity"
},
"asset": {
"enum": [
"ETH",
"BTC"
],
"type": "string"
},
"quiet": {
"type": "boolean",
"description": "true if RV_72h < 60%"
},
"inputs": {
"type": "object",
"required": [
"dvol",
"rv_72h",
"spot_usd",
"timestamp"
],
"properties": {
"dvol": {
"type": "number",
"description": "Deribit volatility index, annualized %"
},
"rv_6h": {
"type": "number",
"description": "Parkinson realized vol over 6h, %"
},
"rv_72h": {
"type": "number",
"description": "Parkinson realized vol over 72h, %"
},
"source": {
"type": "string"
},
"spot_usd": {
"type": "number"
},
"timestamp": {
"type": "string",
"format": "date-time"
}
}
},
"regime": {
"enum": [
"LOW",
"MID",
"HIGH"
],
"type": "string"
},
"computed_at": {
"type": "integer",
"description": "Unix timestamp"
},
"methodology": {
"type": "string",
"format": "uri"
},
"cache_ttl_sec": {
"type": "integer"
}
}
}
}
}
}
}
}
},
"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≈ $0.001 USD
on Base · exact scheme
Pay 0.001 USDC on Base to 0x82B1…acd7B. The signed payment is good for 5 minutes.
- Paid to
- 0x82B1…acd7B
- USD Coin contract
- 0x8335…02913
- Payment window
- 5 minutes
- As published
- 1000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0x82B17D0bb4De9ae6c3491257B60E8245e70acd7B",
"amount": "1000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"type": "http",
"method": "GET"
},
"output": {
"type": "json",
"example": {
"ok": true,
"vrp": 0.1525,
"asset": "ETH",
"quiet": true,
"inputs": {
"dvol": 52.58,
"rv_6h": 40.204,
"rv_72h": 52.4275,
"source": "Deribit public API (DVOL + ETH-PERPETUAL OHLC)",
"spot_usd": 2130.2,
"timestamp": "2026-05-20T14:00:00+00:00"
},
"regime": "MID",
"computed_at": 1779284275,
"methodology": "https://regimeshift.xyz/methodology/vrp-v1",
"cache_ttl_sec": 60
}
}
},
"schema": {
"type": "object",
"$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",
"properties": {}
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object",
"required": [
"ok",
"asset",
"vrp",
"regime",
"inputs"
],
"properties": {
"ok": {
"type": "boolean",
"description": "Request status"
},
"vrp": {
"type": "number",
"description": "DVOL − Parkinson RV(72h), in vol points. Positive = sell-vol opportunity"
},
"asset": {
"enum": [
"ETH",
"BTC"
],
"type": "string"
},
"quiet": {
"type": "boolean",
"description": "true if RV_72h < 60%"
},
"inputs": {
"type": "object",
"required": [
"dvol",
"rv_72h",
"spot_usd",
"timestamp"
],
"properties": {
"dvol": {
"type": "number",
"description": "Deribit volatility index, annualized %"
},
"rv_6h": {
"type": "number",
"description": "Parkinson realized vol over 6h, %"
},
"rv_72h": {
"type": "number",
"description": "Parkinson realized vol over 72h, %"
},
"source": {
"type": "string"
},
"spot_usd": {
"type": "number"
},
"timestamp": {
"type": "string",
"format": "date-time"
}
}
},
"regime": {
"enum": [
"LOW",
"MID",
"HIGH"
],
"type": "string"
},
"computed_at": {
"type": "integer",
"description": "Unix timestamp"
},
"methodology": {
"type": "string",
"format": "uri"
},
"cache_ttl_sec": {
"type": "integer"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-22 19:22Z
- Last indexed by Roundhouse
- 2026-09-24 10:00Z
- Last enriched (probe, favicon, geo)
- 2026-09-21 11:45Z
- x402 version
- 2
- Max timeout
- 300s
- Liveness probe
- HTTP 402
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.
Show the promptHide 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/asset/btc/vrp, 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.