hcrb.in

Create a merchant-direct Base token invoice. New automated payments require a durable EOA authorization journal and a configured provider. No active protocol fee; no generic bank-wire authority, independent delivery or contract-wallet guarantee.

OtherUnknowneip155:8453Exactvia cdp

https://hcrb.in/v1/tools/create-b2b-invoice/call

Settlements · 30d

3,948↓ 60%

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

$10.15

Verified settled volume

1,289 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0050

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 2026-10-26 14:21Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xc59c85e661d34084a7769f955d17fd38254a6235

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.

0.005USDC≈ $0.005 USD

on Base · exact scheme

Pay 0.005 USDC on Base to 0xc59c…a6235. The signed payment is good for 15 minutes.

Paid to: 0xc59c…a6235
USD Coin contract: 0x8335…02913
Payment window: 15 minutes
As published: 5000 smallest units
Buys: code402 create-b2b-invoice
Returns: application/json

5000units

on Base · 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: 0xc59c…a6235
Token contract: 0x60a3…adb42
Payment window: 15 minutes
Buys: code402 create-b2b-invoice
Returns: application/json

5000units

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: 0xc59c…a6235
Token contract: 0x3c49…c3359
Payment window: 15 minutes
Buys: code402 create-b2b-invoice
Returns: application/json

5000units

on eip155:43114 · 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: 0xc59c…a6235
Token contract: 0xB97E…48a6E
Payment window: 15 minutes
Buys: code402 create-b2b-invoice
Returns: application/json

5000units

on eip155:43114 · 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: 0xc59c…a6235
Token contract: 0xC891…c2ACD
Payment window: 15 minutes
Buys: code402 create-b2b-invoice
Returns: application/json

5000units

on Arbitrum · 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: 0xc59c…a6235
Token contract: 0xaf88…e5831
Payment window: 15 minutes
Buys: code402 create-b2b-invoice
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "asset_caip19": "eip155:8453/erc20:0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  },
  {
    "asset": "0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42",
    "extra": {
      "name": "EURC",
      "version": "2",
      "asset_caip19": "eip155:8453/erc20:0x60a3E35Cc302bFA44Cb288Bc5a4F316Fdb1adb42"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "asset_caip19": "eip155:137/erc20:0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:137",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  },
  {
    "asset": "0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "asset_caip19": "eip155:43114/erc20:0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:43114",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  },
  {
    "asset": "0xC891EB4cbdEFf6e073e859e987815Ed1505c2ACD",
    "extra": {
      "name": "Euro Coin",
      "version": "2",
      "asset_caip19": "eip155:43114/erc20:0xC891EB4cbdEFf6e073e859e987815Ed1505c2ACD"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:43114",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "asset_caip19": "eip155:42161/erc20:0xaf88d065e77c8cC2239327C5EDb3A432268e5831"
    },
    "payTo": "0xc59c85e661d34084a7769f955d17fd38254a6235",
    "amount": "5000",
    "scheme": "exact",
    "network": "eip155:42161",
    "mimeType": "application/json",
    "resource": "https://hcrb.in/v1/tools/create-b2b-invoice/call",
    "description": "code402 create-b2b-invoice",
    "maxTimeoutSeconds": 900
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "input": {
            "memo": "Sprint #14 Milestones",
            "merchant": "0xc59c85e661d34084a7769f955d17fd38254a6235",
            "amount_usdc": 50000,
            "client_name": "Apex AI"
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "valid": true,
          "pay_url": "",
          "invoice_id": "",
          "invoice_url": ""
        }
      }
    },
    "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": [
                "input"
              ],
              "properties": {
                "input": {
                  "type": "object",
                  "required": [
                    "amount_usdc",
                    "merchant"
                  ],
                  "properties": {
                    "memo": {
                      "type": "string",
                      "description": "Engagement scope / milestone description (optional)."
                    },
                    "merchant": {
                      "type": "string",
                      "description": "Beneficiary contractor Base EVM wallet address (0x...)."
                    },
                    "referrer": {
                      "type": "string",
                      "description": "Optional attribution reference. Referral payouts and protocol fees are not active."
                    },
                    "amount_usdc": {
                      "type": "number",
                      "description": "Invoice total in USDC (e.g. 50000)."
                    },
                    "client_name": {
                      "type": "string",
                      "description": "Client enterprise organization name (optional)."
                    }
                  }
                }
              },
              "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",
              "required": [
                "valid",
                "invoice_id",
                "invoice_url",
                "pay_url"
              ],
              "properties": {
                "tool": {
                  "type": "string"
                },
                "scope": {
                  "type": "string"
                },
                "valid": {
                  "type": "boolean"
                },
                "status": {
                  "type": "string"
                },
                "pay_url": {
                  "type": "string"
                },
                "merchant": {
                  "type": "string"
                },
                "cart_hash": {
                  "type": "string"
                },
                "invoice_id": {
                  "type": "string"
                },
                "amount_usdc": {
                  "type": "number"
                },
                "invoice_url": {
                  "type": "string"
                },
                "protocol_fee_usdc": {
                  "type": "number"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-10-26 14:21Z
Last indexed by Roundhouse: 2026-10-26 23:10Z
Last enriched (probe, favicon, geo): —
x402 version: 2
Max timeout: 900s
Liveness probe: Not probed

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.

Show the prompt

Using Roundhouse, look up the x402 service hcrb.in 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=hcrb.in'
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://hcrb.in/v1/tools/create-b2b-invoice/call, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.