Roundhouse

Sindri

Alcohol spending and opportunity-cost calculator. Sums home and going-out drinking costs plus associated rideshare costs into monthly and yearly totals, then projects what that redirected spending could grow into if invested instead, using the future-value-of-an-annuity formula.

DataLiveeip155:8453Exactvia cdp
https://x402.outpimp.com/alcoholSavingsCalculator
Alcohol savingsOpportunity costPersonal finance
Calls · 30d
3→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 25 snapshots so far.
$2.41
Verified settled volume
241 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-30 22:18Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x548eFd4f4d4A5C3669dbb4CBB2B1A637FeeEc5F6

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.

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x548e…Ec5F6. The signed payment is good for 5 minutes.

Paid to
0x548e…Ec5F6
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
10000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to
APer2A…fqjRG
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x548eFd4f4d4A5C3669dbb4CBB2B1A637FeeEc5F6",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
    },
    "payTo": "APer2AbhckyMWyJanW2MZ2eRLcpL9Lmhks8rkmXfqjRG",
    "amount": "10000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "years": 10,
          "costPerRide": 12,
          "outDaysPerWeek": 1,
          "homeDaysPerWeek": 3,
          "outCostPerDrink": 9,
          "outDrinksPerDay": 3,
          "homeCostPerDrink": 6,
          "homeDrinksPerDay": 1,
          "investmentReturnRate": 0.07,
          "rideshareFrequencyPercent": 0.5
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "data": {
            "params": {
              "years": 10,
              "costPerRide": 12,
              "outDaysPerWeek": 1,
              "homeDaysPerWeek": 3,
              "outCostPerDrink": 9,
              "outDrinksPerDay": 3,
              "homeCostPerDrink": 6,
              "homeDrinksPerDay": 1,
              "investmentReturnRate": 0.07,
              "rideshareFrequencyPercent": 0.5
            },
            "yearlySpending": 2964,
            "monthlySpending": 247,
            "opportunityCostFutureValue": 46782.58838023878
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "homeDaysPerWeek",
                "homeDrinksPerDay",
                "homeCostPerDrink",
                "outDaysPerWeek",
                "outDrinksPerDay",
                "outCostPerDrink",
                "rideshareFrequencyPercent",
                "costPerRide",
                "years"
              ],
              "properties": {
                "years": {
                  "type": "number",
                  "description": "Number of years to project the opportunity cost over (1-60)."
                },
                "costPerRide": {
                  "type": "number",
                  "description": "Average cost per one-way ride."
                },
                "outDaysPerWeek": {
                  "type": "number",
                  "description": "Days per week drinking while out."
                },
                "homeDaysPerWeek": {
                  "type": "number",
                  "description": "Days per week drinking at home."
                },
                "outCostPerDrink": {
                  "type": "number",
                  "description": "Average cost per drink when out."
                },
                "outDrinksPerDay": {
                  "type": "number",
                  "description": "Drinks per outing."
                },
                "homeCostPerDrink": {
                  "type": "number",
                  "description": "Average cost per drink at home."
                },
                "homeDrinksPerDay": {
                  "type": "number",
                  "description": "Drinks per home-drinking day."
                },
                "investmentReturnRate": {
                  "type": "number",
                  "default": 0.07,
                  "description": "Annual investment return, as a fraction, used for the opportunity-cost projection. Default 0.07."
                },
                "rideshareFrequencyPercent": {
                  "type": "number",
                  "description": "Fraction of outings that involve a rideshare (0-1)."
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "x402_api_vendor",
      "s": [
        "cdp_sdk_server"
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "eip2612GasSponsoring": {},
  "erc20ApprovalGasSponsoring": {}
}

Provenance

Seen in the source catalog
2026-08-30 22:18Z
Last indexed by Roundhouse
2026-09-24 10:00Z
Last enriched (probe, favicon, geo)
2026-09-21 13:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
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. 25 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 Sindri 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=Sindri'
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://x402.outpimp.com/alcoholSavingsCalculator, 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.