Roundhouse AI

api.algovault.com

Ranked cross-venue funding-rate arbitrage scanner: in a single call it scans hundreds of perpetual-futures pairs and surfaces those whose funding spread between venues exceeds a caller-set basis-point threshold. Each opportunity returns the per-venue funding rates, the best long/short venue pair, the spread in bps, the annualized capture, a conviction grade, and the next funding times.

TradingLiveeip155:8453Exactvia cdp
https://api.algovault.com/x402/scan_funding_arb
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$0.14
Verified settled volume
10 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 2026-06-06 14:20Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x778A05280Fd8dB980E920fE9f31d0A8eAbD17d59

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": "0x778A05280Fd8dB980E920fE9f31d0A8eAbD17d59",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
      "extra": {
        "name": "GatewayWalletBatched",
        "assets": [
          {
            "symbol": "USDC",
            "address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
            "decimals": 6
          }
        ],
        "version": "1",
        "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
        "minValiditySeconds": 604800
      },
      "payTo": "0x11447b963c1408E7c84868314eF2fe9304768717",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:10",
      "maxTimeoutSeconds": 604900
    }
  ],
  "resource": {
    "url": "https://api.algovault.com/x402/scan_funding_arb",
    "mimeType": "application/json",
    "description": "Returns a ranked list of cross-venue funding-rate arbitrage opportunities: in one call it scans hundreds of perpetual-futures pairs and surfaces those whose funding spread between venues exceeds a caller-set basis-point threshold. Each opportunity returns the per-venue funding rates, the best long/short venue pair, the spread in bps, the annualized capture, a conviction grade, and the next funding times. Read-only market scan, informational only. Use when an agent is hunting market-neutral funding spreads; for a directional verdict on a single market use `get_trade_signal`."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "limit": 10,
            "minSpreadBps": 5
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "scannedPairs": 230,
            "opportunities": [
              {
                "coin": "BTC",
                "rates": {
                  "BYBIT": 0.000182,
                  "BINANCE": 0.0000635
                },
                "bestArb": {
                  "urgency": "SOON",
                  "direction": "Long Binance / Short Bybit",
                  "longVenue": "BINANCE",
                  "rankScore": 78.4,
                  "spreadBps": 11.9,
                  "shortVenue": "BYBIT",
                  "annualizedPct": 104.2
                },
                "conviction": "HIGH",
                "nextFundingTimes": {
                  "BYBIT": 1780070400,
                  "BINANCE": 1780070400
                }
              }
            ]
          }
        }
      },
      "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": [],
                "properties": {
                  "limit": {
                    "type": "integer",
                    "default": 10,
                    "maximum": 200,
                    "minimum": 1,
                    "description": "Maximum ranked opportunities to return (1–200)."
                  },
                  "minSpreadBps": {
                    "type": "number",
                    "default": 5,
                    "maximum": 10000,
                    "minimum": 0,
                    "description": "Minimum funding spread to report, in basis points (0–10000)."
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "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.

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x778A…17d59. The signed payment is good for 5 minutes.

Paid to
0x778A…17d59
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": "0x778A05280Fd8dB980E920fE9f31d0A8eAbD17d59",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 10,
          "minSpreadBps": 5
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "scannedPairs": 230,
          "opportunities": [
            {
              "coin": "BTC",
              "rates": {
                "BYBIT": 0.000182,
                "BINANCE": 0.0000635
              },
              "bestArb": {
                "urgency": "SOON",
                "direction": "Long Binance / Short Bybit",
                "longVenue": "BINANCE",
                "rankScore": 78.4,
                "spreadBps": 11.9,
                "shortVenue": "BYBIT",
                "annualizedPct": 104.2
              },
              "conviction": "HIGH",
              "nextFundingTimes": {
                "BYBIT": 1780070400,
                "BINANCE": 1780070400
              }
            }
          ]
        }
      }
    },
    "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": [],
              "properties": {
                "limit": {
                  "type": "integer",
                  "default": 10,
                  "maximum": 200,
                  "minimum": 1,
                  "description": "Maximum ranked opportunities to return (1–200)."
                },
                "minSpreadBps": {
                  "type": "number",
                  "default": 5,
                  "maximum": 10000,
                  "minimum": 0,
                  "description": "Minimum funding spread to report, in basis points (0–10000)."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-06-06 14:20Z
Last indexed by Roundhouse
2026-07-06 10:50Z
Last enriched (probe, favicon, geo)
2026-09-21 10:15Z
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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 api.algovault.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=api.algovault.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://api.algovault.com/x402/scan_funding_arb, 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.