Roundhouse

api.loyalspark.online

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.

TradingLiveeip155:8453Exactvia cdp
https://api.loyalspark.online/x402-gateway/register-program
Calls · 30d
71↑ 1.1%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$34.35
Verified settled volume
A floor: summed over 5,000 of up to 94,008 indexed settlements. The exact verified count is not computed for a wallet this size.
$0.010
Listed price
As published in the catalog. Always read the live 402 before paying.
71
Calls · 30d
Upstream's own call count for this endpoint, not ours.
12
Unique payers · 30d
Last called 2026-09-23 21:27Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b

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 0x40a8…4ad8b. The signed payment is good for 5 minutes.

Paid to
0x40a8…4ad8b
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
Buys
Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "brand": "Loyal Spark",
      "version": "2",
      "website": "https://loyalspark.online",
      "provider": "Loyal Spark",
      "builderCode": "bc_wdmnog7m",
      "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
      "documentation": "https://loyalspark.online/for-agents"
    },
    "payTo": "0x40a8CdD6a10EC1a8cB3dFb2834675e7a2CF4ad8b",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.loyalspark.online/x402-gateway/register-program?method=POST",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "type": "http",
            "method": "POST",
            "headers": {
              "x-api-key": "lsk_..."
            },
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "ok": true,
              "resource": "register-program"
            }
          },
          "inputSchema": {
            "type": "object",
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "required": [
              "name",
              "symbol",
              "token_address"
            ],
            "properties": {
              "name": {
                "type": "string"
              },
              "symbol": {
                "type": "string"
              },
              "cashback_rate": {
                "type": "number",
                "maximum": 100,
                "minimum": 0,
                "description": "Cashback % of purchase amount."
              },
              "token_address": {
                "type": "string",
                "pattern": "^0x[a-fA-F0-9]{40}$",
                "description": "EVM address on Base (eip155:8453)."
              },
              "expiration_days": {
                "type": "number",
                "minimum": 1
              },
              "use_agent_wallet": {
                "type": "boolean"
              },
              "points_per_dollar": {
                "type": "number",
                "minimum": 0
              }
            },
            "additionalProperties": true
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object"
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "headers": {
                  "type": "object",
                  "additionalProperties": {
                    "type": "string"
                  }
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "type": "object",
                  "additionalProperties": {
                    "type": "string"
                  }
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {}
              }
            },
            "inputSchema": {
              "type": "object"
            }
          }
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_wdmnog7m"
        },
        "schema": {
          "type": "object",
          "$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}$",
              "description": "Wallet builder code"
            }
          },
          "additionalProperties": false
        }
      }
    },
    "description": "Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. Free plan mints up to 1,000 tokens per month; every call is scoped by row-level security to the wallet behind the API key. 16 skill guides at loyalspark.online/.well-known/skills/index.md.",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "POST",
        "bodyType": "json",
        "description": "HTTP POST https://api.loyalspark.online/x402-gateway/register-program?method=POST — x402-gateway /register-program. Authenticate with header x-api-key: lsk_....",
        "inputSchema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "name",
            "symbol",
            "token_address"
          ],
          "properties": {
            "name": {
              "type": "string"
            },
            "symbol": {
              "type": "string"
            },
            "cashback_rate": {
              "type": "number",
              "maximum": 100,
              "minimum": 0,
              "description": "Cashback % of purchase amount."
            },
            "token_address": {
              "type": "string",
              "pattern": "^0x[a-fA-F0-9]{40}$",
              "description": "EVM address on Base (eip155:8453)."
            },
            "expiration_days": {
              "type": "number",
              "minimum": 1
            },
            "use_agent_wallet": {
              "type": "boolean"
            },
            "points_per_dollar": {
              "type": "number",
              "minimum": 0
            }
          },
          "additionalProperties": true
        }
      },
      "output": {
        "type": "json",
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema"
        },
        "description": "JSON from Loyal Spark agent-api or recipient-api. See OpenAPI for response shape."
      }
    },
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {},
        "type": "http",
        "method": "POST",
        "headers": {
          "x-api-key": "lsk_..."
        },
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "resource": "register-program"
        }
      },
      "inputSchema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "name",
          "symbol",
          "token_address"
        ],
        "properties": {
          "name": {
            "type": "string"
          },
          "symbol": {
            "type": "string"
          },
          "cashback_rate": {
            "type": "number",
            "maximum": 100,
            "minimum": 0,
            "description": "Cashback % of purchase amount."
          },
          "token_address": {
            "type": "string",
            "pattern": "^0x[a-fA-F0-9]{40}$",
            "description": "EVM address on Base (eip155:8453)."
          },
          "expiration_days": {
            "type": "number",
            "minimum": 1
          },
          "use_agent_wallet": {
            "type": "boolean"
          },
          "points_per_dollar": {
            "type": "number",
            "minimum": 0
          }
        },
        "additionalProperties": true
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object"
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "headers": {
              "type": "object",
              "additionalProperties": {
                "type": "string"
              }
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "additionalProperties": {
                "type": "string"
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {}
          }
        },
        "inputSchema": {
          "type": "object"
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_wdmnog7m"
    },
    "schema": {
      "type": "object",
      "$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
    }
  }
}

Provenance

Seen in the source catalog
2026-09-23 21:27Z
Last indexed by Roundhouse
2026-09-24 10:40Z
Last enriched (probe, favicon, geo)
2026-09-23 23:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 404
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 api.loyalspark.online 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.loyalspark.online'
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.loyalspark.online/x402-gateway/register-program, 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.