Roundhouse AI

SparkPulse

Wholesale US electricity-market price + volatility signal (no params)

TradingLiveeip155:8453Exactvia facilitator:payAI
https://spark.lonestaroracle.xyz/power
PowerElectricityEnergyMarketsGrid
Calls · 30d
5↑ 84%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.
$295.37
Verified settled volume
2,730 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
0x52Ab53912D37759B2ad364f22dD06B16714b6C06

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": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "scheme": "exact",
      "network": "base",
      "mimeType": "",
      "resource": "https://spark.lonestaroracle.xyz/power",
      "description": "Wholesale US electricity-market price + volatility signal (no params)",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
      },
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "scheme": "exact",
      "network": "solana",
      "mimeType": "",
      "resource": "https://spark.lonestaroracle.xyz/power",
      "description": "Wholesale US electricity-market price + volatility signal (no params)",
      "maxAmountRequired": "50000",
      "maxTimeoutSeconds": 300
    }
  ],
  "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 0x52Ab…b6C06. The signed payment is good for 5 minutes.

Paid to
0x52Ab…b6C06
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": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "object",
        "format": "json",
        "example": {
          "signal": "SCARCE",
          "markets": {
            "CAISO": {
              "SP15": {
                "signal": "SCARCE",
                "da_price": 61,
                "rt_price": 182.4,
                "volatility": 74.2,
                "window_low": -8,
                "window_high": 340.1,
                "da_rt_spread": 121.4,
                "intraday_spread": 348.1,
                "negative_intervals": 12
              }
            }
          },
          "summary": "US West (CAISO) power scarce: SP15 real-time $182/MWh (day-ahead $61), 24h range -$8 to $340, 12 negative 5-min intervals.",
          "coverage": "CAISO (California) live; ERCOT/PJM/MISO rolling out",
          "battery_arbitrage": {
            "best_market": "CAISO-SP15",
            "intraday_spread_mwh": 348.1,
            "negative_intervals_24h": 12
          }
        }
      }
    },
    "schema": {
      "name": "SparkPulse",
      "tags": [
        "power",
        "electricity",
        "energy",
        "markets",
        "grid"
      ],
      "type": "object",
      "version": "1.0.0",
      "category": "energy",
      "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": {}
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "signal": "SCARCE",
              "markets": {
                "CAISO": {
                  "SP15": {
                    "signal": "SCARCE",
                    "da_price": 61,
                    "rt_price": 182.4,
                    "volatility": 74.2,
                    "window_low": -8,
                    "window_high": 340.1,
                    "da_rt_spread": 121.4,
                    "intraday_spread": 348.1,
                    "negative_intervals": 12
                  }
                }
              },
              "summary": "US West (CAISO) power scarce: SP15 real-time $182/MWh (day-ahead $61), 24h range -$8 to $340, 12 negative 5-min intervals.",
              "coverage": "CAISO (California) live; ERCOT/PJM/MISO rolling out",
              "battery_arbitrage": {
                "best_market": "CAISO-SP15",
                "intraday_spread_mwh": 348.1,
                "negative_intervals_24h": 12
              }
            }
          }
        }
      },
      "description": "Wholesale US electricity-market prices made agent-callable. One x402 call returns the real-time and day-ahead wholesale power price ($/MWh) by market hub, the day-ahead-vs-real-time spread, the 24-hour high/low range, the count of negative-price intervals, price volatility, and a CHEAP / NORMAL / ELEVATED / SCARCE / SPIKING signal — plus a battery-arbitrage read (best intraday spread, negative-price frequency). This is the price of the ELECTRON: the missing counterpart to ComputePulse (price of compute) and distinct from GridPulse (grid demand/mix/stress). The read a data-center-siting, battery-dispatch, energy-trading, or compute-cost agent needs on what power actually costs right now and how volatile it is. Pair it with ComputePulse to reason about the compute-power spread. $0.05 in USDC on Base via x402. Source: US ISO public data (CAISO OASIS live; ERCOT / PJM / MISO rolling out). Real-world-economy data, no crypto-dashboard equivalent."
    }
  }
}

Provenance

Seen in the source catalog
2026-09-24 14:38Z
Last indexed by Roundhouse
2026-09-24 20:45Z
Last enriched (probe, favicon, geo)
2026-09-15 12:16Z
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

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 SparkPulse 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=SparkPulse'
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://spark.lonestaroracle.xyz/power, 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.