Roundhouse AI

x402.ottoai.services

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/modify-hl-order
Settlements · 30d
571↓ 32%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$5.05
Verified settled volume
Settlement count unavailable — the ledger could not be read.
$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 2026-05-13 06:49Z
—
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
10000units
on Polygon · 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
0x5bB4…09F68
Token contract
0x3c49…c3359
Payment window
5 minutes
10000units
on Polygon · 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
0x5bB4…09F68
Token contract
0x3c49…c3359
Payment window
5 minutes
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
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {},
    "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "asset": "ETH",
          "action": "add_tp",
          "triggerPrice": 4000
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "action": "add_tp",
          "orderId": "12346",
          "success": true,
          "triggerPrice": 4000
        }
      }
    },
    "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",
                "action"
              ],
              "properties": {
                "asset": {
                  "type": "string",
                  "description": "Asset ticker"
                },
                "action": {
                  "enum": [
                    "add_tp",
                    "add_sl",
                    "modify_tp",
                    "modify_sl",
                    "cancel_order"
                  ],
                  "type": "string",
                  "description": "Operation to perform"
                },
                "orderId": {
                  "type": "string",
                  "description": "Existing order ID (required for modify/cancel)"
                },
                "triggerPrice": {
                  "type": "number",
                  "description": "Trigger price for TP/SL (required for add/modify)"
                }
              }
            },
            "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": [
                "success"
              ],
              "properties": {
                "error": {
                  "type": "string"
                },
                "action": {
                  "type": "string"
                },
                "orderId": {
                  "type": "string"
                },
                "success": {
                  "type": "boolean"
                },
                "triggerPrice": {
                  "type": "number"
                }
              }
            }
          }
        }
      }
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1778655272,
            "resourceUrl": "https://x402.ottoai.services/modify-hl-order"
          },
          "signature": "0x14ee6f2b9f065367114595caf423b9aa74bc8ff70d8b4bc7716d9d2c57805aa833bd692008a611e80bbdca1274583989b7b582e2ce1abfccbb2eecd6775c22a01c",
          "acceptIndex": 0
        },
        {
          "format": "eip712",
          "payload": {
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:8453",
            "version": 1,
            "validUntil": 1778655272,
            "resourceUrl": "https://x402.ottoai.services/modify-hl-order"
          },
          "signature": "0x14ee6f2b9f065367114595caf423b9aa74bc8ff70d8b4bc7716d9d2c57805aa833bd692008a611e80bbdca1274583989b7b582e2ce1abfccbb2eecd6775c22a01c",
          "acceptIndex": 1
        },
        {
          "format": "eip712",
          "payload": {
            "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:137",
            "version": 1,
            "validUntil": 1778655272,
            "resourceUrl": "https://x402.ottoai.services/modify-hl-order"
          },
          "signature": "0x5658ab4a479dc400bdd6d0c924af9cbdee27862050cd8fa1a8c1f0a809e346ae4237c891c46c09256553fc564b190461712012da21207305e995c3edb49234b41c",
          "acceptIndex": 2
        },
        {
          "format": "eip712",
          "payload": {
            "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
            "payTo": "0x5bB4B0C766E0D5D791d9403Fc275c22064709F68",
            "amount": "10000",
            "scheme": "exact",
            "network": "eip155:137",
            "version": 1,
            "validUntil": 1778655272,
            "resourceUrl": "https://x402.ottoai.services/modify-hl-order"
          },
          "signature": "0x5658ab4a479dc400bdd6d0c924af9cbdee27862050cd8fa1a8c1f0a809e346ae4237c891c46c09256553fc564b190461712012da21207305e995c3edb49234b41c",
          "acceptIndex": 3
        }
      ]
    },
    "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
2026-05-13 06:49Z
Last indexed by Roundhouse
2026-06-11 02:40Z
Last enriched (probe, favicon, geo)
2026-09-22 19:15Z
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

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. 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.ottoai.services 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.ottoai.services'
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/modify-hl-order, 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.