api.coregroupimmo.com

Name: api.coregroupimmo.com
Price: 0.002 USDC
Availability: InStock

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb

https://api.coregroupimmo.com/v1/json/validate

Calls · 30d

7↑ 125%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.

$0.05

Verified settled volume

21 settlements proven x402 by their on-chain EIP-3009 marker.

$0.0020

Listed price

As published in the catalog. Always read the live 402 before paying.

—

Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x3fdB182298535503354647A6C8d48A1A410E36D5

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": "0x3fdB182298535503354647A6C8d48A1A410E36D5",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://api.coregroupimmo.com/v1/json/validate",
    "tags": [
      "json",
      "schema",
      "validation"
    ],
    "mimeType": "application/json",
    "description": "Use this service before importing or publishing JSON to check it against a restricted draft-07 schema. Send dataJson and schemaJson as JSON-encoded strings. Max 256 KiB UTF-8 each, depth 32; bounded node and work limits. Supports types, required properties, items, enums and numeric/length bounds. No regex, combinators or external references. Invalid business data returns valid=false.",
    "serviceName": "CORE JSON Validator"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "dataJson": "{\"age\":30}",
            "schemaJson": "{\"type\":\"object\",\"properties\":{\"age\":{\"type\":\"integer\"}},\"required\":[\"age\"]}"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "result": {
              "valid": true,
              "counts": {
                "errors": 0,
                "dataNodes": 2,
                "schemaNodes": 7
              },
              "errors": [],
              "truncated": false
            },
            "service": "core-json-validator"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input",
          "output"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "dataJson",
                  "schemaJson"
                ],
                "properties": {
                  "dataJson": {
                    "type": "string",
                    "maxLength": 262144,
                    "description": "JSON-encoded data, at most 256 KiB UTF-8, depth 32, 10000 nodes."
                  },
                  "schemaJson": {
                    "type": "string",
                    "maxLength": 262144,
                    "description": "JSON-encoded restricted draft-07 schema: at most 256 KiB UTF-8, depth 32, 2000 nodes. No external references, regex or combinators. Work cap 50000."
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "type": "string",
                "const": "POST"
              },
              "bodyType": {
                "type": "string",
                "const": "json"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type",
              "example"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "service",
                  "result"
                ],
                "properties": {
                  "result": {
                    "type": "object",
                    "required": [
                      "valid",
                      "counts",
                      "errors",
                      "truncated"
                    ],
                    "properties": {
                      "valid": {
                        "type": "boolean"
                      },
                      "counts": {
                        "type": "object",
                        "additionalProperties": {
                          "type": "integer",
                          "minimum": 0
                        }
                      },
                      "errors": {
                        "type": "array",
                        "items": {
                          "type": "object",
                          "required": [
                            "code"
                          ],
                          "properties": {
                            "row": {
                              "type": "integer",
                              "minimum": 0
                            },
                            "code": {
                              "type": "string"
                            },
                            "column": {
                              "type": "integer",
                              "minimum": 0
                            }
                          },
                          "additionalProperties": false
                        },
                        "maxItems": 20
                      },
                      "truncated": {
                        "type": "boolean"
                      }
                    },
                    "additionalProperties": false
                  },
                  "service": {
                    "type": "string",
                    "const": "core-json-validator"
                  }
                },
                "additionalProperties": false
              }
            },
            "additionalProperties": false
          }
        },
        "additionalProperties": false
      }
    }
  },
  "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.

0.002USDC≈ $0.002 USD

on Base · exact scheme

Pay 0.002 USDC on Base to 0x3fdB…E36D5. The signed payment is good for 2 minutes.

Paid to: 0x3fdB…E36D5
USD Coin contract: 0x8335…02913
Payment window: 2 minutes
As published: 2000 smallest units
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x3fdB182298535503354647A6C8d48A1A410E36D5",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.coregroupimmo.com/v1/json/validate",
    "description": "",
    "maxAmountRequired": "2000",
    "maxTimeoutSeconds": 120
  }
]

Provenance

Seen in the source catalog: 2026-10-22 03:18Z
Last indexed by Roundhouse: 2026-10-23 17:16Z
Last enriched (probe, favicon, geo): 2026-10-18 20:45Z
x402 version: 1
Max timeout: 120s
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

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 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.coregroupimmo.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.coregroupimmo.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.coregroupimmo.com/v1/json/validate, 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.