Roundhouse

Otto AI

80 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX on select endpoints. From $0.001 per call.

TradingLiveeip155:8453Exactvia cdp
https://x402.ottoai.services/close-position
Close positionHyperliquidPerps exit
Calls · 30d
2↓ 30%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$5.05
Verified settled volume
A floor: summed over 5,000 of 36,566 verified settlements.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-08-28 23:02Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x5bB4B0C766E0D5D791d9403Fc275c22064709F68

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 0x5bB4…09F68. The signed payment is good for 5 minutes.

Paid to
0x5bB4…09F68
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0x5bB4…09F68. The signed payment is good for 5 minutes.

Paid to
0x5bB4…09F68
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": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "asset": "BTC",
          "partialClosePercentage": 100
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "asset": "BTC",
          "status": "success",
          "exitPrice": 67500,
          "closedSize": 250,
          "realizedPnl": "15.23",
          "closedPercentage": 100
        }
      }
    },
    "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": [
                "asset",
                "partialClosePercentage"
              ],
              "properties": {
                "asset": {
                  "type": "string",
                  "description": "Asset ticker of the open position"
                },
                "closePercent": {
                  "type": "number",
                  "description": "Alias for partialClosePercentage. Accepted; sending both with different values is rejected."
                },
                "partialClosePercentage": {
                  "type": "number",
                  "description": "Percentage of the position to close (1-100). 100 closes it fully. Required — an omitted percentage is rejected, never treated as a full close."
                }
              },
              "additionalProperties": false
            },
            "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",
              "required": [
                "status"
              ],
              "properties": {
                "as_of": {
                  "type": "string",
                  "description": "ISO-8601 time the reported venue state was read."
                },
                "asset": {
                  "type": "string"
                },
                "close": {
                  "type": "object",
                  "properties": {
                    "side": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "accepted": {
                      "type": "boolean",
                      "description": "Present and false when the venue explicitly refused the close."
                    },
                    "submitted": {
                      "type": "boolean",
                      "description": "Whether the close order reached the venue at all."
                    },
                    "sizeRequested": {
                      "type": "number",
                      "description": "Size submitted to the venue, in contracts."
                    },
                    "requestedPercentage": {
                      "type": "number"
                    }
                  },
                  "description": "Present on the non-success outcomes: the close as it was submitted, so you can check it without a second call."
                },
                "error": {
                  "type": "string"
                },
                "status": {
                  "enum": [
                    "success",
                    "partial",
                    "failed",
                    "unknown"
                  ],
                  "type": "string",
                  "description": "'partial' when the venue's own size shows the close filled SHORT — the remainder of your position is still open and still carrying risk. 'success' when the venue confirmed the close filled — it is the only outcome that is charged for. 'failed' when the venue refused the close: NOTHING WAS CLOSED by this request and you are not charged. That is a statement about this order, not about your position — a trigger or a liquidation may have moved it, so check it rather than assuming it is untouched. 'unknown' when the close was submitted and its outcome could not be confirmed: check your position before retrying, because a retry may close more than you intended. You are not charged for that either."
                },
                "message": {
                  "type": "string",
                  "description": "Buyer-facing sentence describing the outcome and what, if anything, to do."
                },
                "exitPrice": {
                  "type": "number",
                  "description": "Mark price read just after the close, not the venue fill price."
                },
                "shortfall": {
                  "type": "number",
                  "description": "Present on a proven short close: contracts of your request that did NOT close and remain open."
                },
                "closedSize": {
                  "type": "number",
                  "description": "Contracts the venue reported closing. ABSENT when amountConfirmed is false — it is never defaulted to the size you requested."
                },
                "requestedSize": {
                  "type": "number",
                  "description": "Contracts submitted to close, for comparison with closedSizeActual. A request, never a result."
                },
                "action_required": {
                  "type": "boolean",
                  "description": "Present on the non-success outcomes: this position needs you to look at it."
                },
                "amountConfirmed": {
                  "type": "boolean",
                  "description": "Did the venue state HOW MUCH closed? When false the close is confirmed and its size is not, so closedPercentage, closedSize, closedSizeActual and realizedPnl are ALL ABSENT — there is no amount to publish and the request's own figures are not a stand-in. Read requestedPercentage/requestedSize for what was asked, and check the position on Hyperliquid for what remains."
                },
                "closedPercentage": {
                  "type": "number",
                  "description": "The percentage ACTUALLY closed, derived from the venue's filled size — never an echo of what you sent. ABSENT when amountConfirmed is false."
                },
                "closedSizeActual": {
                  "type": "number",
                  "description": "Contracts the venue reported closing. ABSENT when it did not state an amount."
                },
                "estimatedPnlAtMark": {
                  "type": "string",
                  "description": "An ESTIMATE of what this close was worth: (mark price read just after the close - your entry price) x the venue's CONFIRMED closed size. Not a realised result — it is not the price the close filled at, and it excludes fees and funding. ABSENT when amountConfirmed is false or the mark-price read failed."
                },
                "requestedPercentage": {
                  "type": "number",
                  "description": "The percentage you asked to close. A request, never a result."
                },
                "fullyClosedAsRequested": {
                  "type": "boolean",
                  "description": "Present only when the venue's own size proves it either way."
                },
                "closedPercentageVerified": {
                  "type": "boolean",
                  "description": "Mirrors amountConfirmed: false when the venue confirmed a fill without stating its size."
                }
              }
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_hc2dhq09"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1787958425,
            "resourceUrl": "https://x402.ottoai.services/close-position"
          },
          "signature": "0xa12e9f7b3d95e608e322e3ec703386e5c19b7c96d91e566576a231256230533a37b040b44610e9443df73dfb7db7ec3123a7d09f56b763cf05303254a36641ea1c",
          "acceptIndex": 0
        },
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1787958425,
            "resourceUrl": "https://x402.ottoai.services/close-position"
          },
          "signature": "0xa12e9f7b3d95e608e322e3ec703386e5c19b7c96d91e566576a231256230533a37b040b44610e9443df73dfb7db7ec3123a7d09f56b763cf05303254a36641ea1c",
          "acceptIndex": 1
        }
      ]
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "offers"
      ],
      "properties": {
        "offers": {
          "type": "array",
          "items": {
            "type": "object",
            "required": [
              "format",
              "signature"
            ],
            "properties": {
              "format": {
                "type": "string"
              },
              "payload": {
                "type": "object",
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "properties": {
                  "asset": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "amount": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "version": {
                    "type": "integer"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "resourceUrl": {
                    "type": "string"
                  }
                }
              },
              "signature": {
                "type": "string"
              },
              "acceptIndex": {
                "type": "integer"
              }
            }
          }
        }
      }
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-28 23:02Z
Last indexed by Roundhouse
2026-09-24 07:30Z
Last enriched (probe, favicon, geo)
2026-09-22 20:45Z
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. 30 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 Otto AI 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=Otto%20AI'
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.ottoai.services/close-position, 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.