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x402.presenceoperations.com

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TradingLiveeip155:8453Exactvia cdp
https://x402.presenceoperations.com/services/carry-cost
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 snapshots so far.
$0.08
Verified settled volume
7 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.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-12 18:53Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x51edd63F074EaB0b1AB94c7BCf8b1e3aD43F1D2f

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": "0x51edd63F074EaB0b1AB94c7BCf8b1e3aD43F1D2f",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402.presenceoperations.com/services/carry-cost",
    "mimeType": "application/json",
    "description": "What it costs to hold a perpetual position: the venue's current hourly funding signed for your side, projected over your horizon in your own units, with the mark-to-oracle basis, open interest, and the assumption behind the projection stated rather than implied."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "side": "LONG",
            "hours": 8,
            "market": "BTC-PERP",
            "notional": 1000
          }
        },
        "output": {
          "type": "json",
          "example": {
            "side": "",
            "hours": 0,
            "detail": "",
            "market": "",
            "notional": 0,
            "direction": "",
            "markPrice": "",
            "assumption": "",
            "observedAt": "",
            "oraclePrice": "",
            "openInterest": "",
            "fundingPerHour": "",
            "basisBasisPoints": 0,
            "hourlyFundingRate": "",
            "annualisedRateBasisPoints": 0,
            "projectedFundingOverHorizon": ""
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "market",
                  "notional"
                ],
                "properties": {
                  "side": {
                    "enum": [
                      "LONG",
                      "SHORT"
                    ],
                    "type": "string",
                    "default": "LONG",
                    "description": "which side of the funding you are on; the two answers have opposite signs, so anything outside LONG or SHORT is refused rather than read as the default"
                  },
                  "hours": {
                    "type": "number",
                    "default": "8",
                    "maximum": 720,
                    "minimum": 1,
                    "description": "the holding horizon to project over; bounded because funding resets hourly and a projection past a month is a number with the shape of an answer and none of the content"
                  },
                  "market": {
                    "type": "string",
                    "pattern": "^[A-Z0-9]{1,16}-PERP$",
                    "description": "the perpetual market to price the carry of, upper-cased before matching, for example BTC-PERP"
                  },
                  "notional": {
                    "type": "number",
                    "maximum": 100000000,
                    "minimum": 1,
                    "description": "the position size to price the funding on, in quote currency"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object"
          }
        }
      },
      "category": "market-data"
    }
  },
  "x402Version": 2,
  "outputSchema": {
    "input": {
      "type": "http",
      "method": "GET",
      "queryParams": {
        "side": "BUY",
        "market": "BTC-PERP",
        "notional": 1000
      },
      "discoverable": true
    },
    "output": {
      "side": "",
      "detail": "",
      "market": "",
      "absorbable": true,
      "touchPrice": null,
      "bookObservedAt": "",
      "filledNotional": 0,
      "averageFillPrice": null,
      "levelsConsidered": 0,
      "requestedNotional": 0,
      "slippageBasisPoints": null
    }
  },
  "priceDecimal": "0.01 USDC"
}

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 0x51ed…F1D2f. The signed payment is good for 5 minutes.

Paid to
0x51ed…F1D2f
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x51edd63F074EaB0b1AB94c7BCf8b1e3aD43F1D2f",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "side": "LONG",
          "hours": 8,
          "market": "BTC-PERP",
          "notional": 1000
        }
      },
      "output": {
        "type": "json",
        "example": {
          "side": "",
          "hours": 0,
          "detail": "",
          "market": "",
          "notional": 0,
          "direction": "",
          "markPrice": "",
          "assumption": "",
          "observedAt": "",
          "oraclePrice": "",
          "openInterest": "",
          "fundingPerHour": "",
          "basisBasisPoints": 0,
          "hourlyFundingRate": "",
          "annualisedRateBasisPoints": 0,
          "projectedFundingOverHorizon": ""
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "market",
                "notional"
              ],
              "properties": {
                "side": {
                  "enum": [
                    "LONG",
                    "SHORT"
                  ],
                  "type": "string",
                  "default": "LONG",
                  "description": "which side of the funding you are on; the two answers have opposite signs, so anything outside LONG or SHORT is refused rather than read as the default"
                },
                "hours": {
                  "type": "number",
                  "default": "8",
                  "maximum": 720,
                  "minimum": 1,
                  "description": "the holding horizon to project over; bounded because funding resets hourly and a projection past a month is a number with the shape of an answer and none of the content"
                },
                "market": {
                  "type": "string",
                  "pattern": "^[A-Z0-9]{1,16}-PERP$",
                  "description": "the perpetual market to price the carry of, upper-cased before matching, for example BTC-PERP"
                },
                "notional": {
                  "type": "number",
                  "maximum": 100000000,
                  "minimum": 1,
                  "description": "the position size to price the funding on, in quote currency"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object"
        }
      }
    },
    "category": "market-data"
  }
}

Provenance

Seen in the source catalog
2026-08-12 18:53Z
Last indexed by Roundhouse
2026-09-11 18:41Z
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. 19 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 x402.presenceoperations.com 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=x402.presenceoperations.com'
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.presenceoperations.com/services/carry-cost, 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.