Roundhouse

Phone Check

Turn the many ways a phone number gets typed into one E.164 string: strips spacing, brackets, the 00 international prefix and the national trunk zero people include out of habit. Returns country, calling code, national number, and whether the length matches that country's numbering plan. Line type (mobile / fixed) is reported ONLY for countries whose ranges are unambiguous and is null elsewhere with a reason — never guessed. Offline: it does not check that the number is assigned or reachable.

SocialLiveeip155:8453Exactvia cdp
https://402.com.tr/api/x402/phone-check
BusinessVerificationDue-diligenceKybPhone
Calls · 30d
2↓ 7.1%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 29 snapshots so far.
$53.80
Verified settled volume
1,275 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.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-21 03:00Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x973a31858f4d2125f48c880542da11a2796f12d6

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",
  "sample": {
    "data": {
      "e164": "+905321234567",
      "input": "+90 532 123 45 67",
      "valid": true,
      "country": "Türkiye",
      "lineType": "mobile",
      "countryCode": "+90",
      "lengthChecked": true,
      "lineTypeReason": "mobile — the national number falls in an unambiguous mobile range",
      "nationalNumber": "5321234567"
    },
    "note": "Preview of a real response — a paid call returns the full report (all signals, details & recommendation)."
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "freeCall": "This service gives 1 free call/day per IP — retry with `?free=1` (or the header `x-402-free: 1`) and no payment header. After that the same flag returns a preview.",
  "resource": {
    "url": "https://402.com.tr/api/x402/phone-check",
    "tags": [
      "business",
      "verification",
      "due-diligence",
      "kyb",
      "phone",
      "base",
      "x402"
    ],
    "mimeType": "application/json",
    "description": "Turn the many ways a phone number gets typed into one E.164 string: strips spacing, brackets, the 00 international prefix and the national trunk zero people include out of habit. Returns country, calling code, national number, and whether the length matches that country's numbering plan. Line type (mobile / fixed) is reported ONLY for countries whose ranges are unambiguous and is null elsewhere with a reason — never guessed. Offline: it does not check that the number is assigned or reachable.",
    "serviceName": "Phone Check"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "pathParams": {},
          "queryParams": {
            "phone": "+90 532 123 45 67",
            "country": "44"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "e164": "+905321234567",
            "input": "+90 532 123 45 67",
            "valid": true,
            "country": "Türkiye",
            "lineType": "mobile",
            "countryCode": "+90",
            "lengthChecked": true,
            "lineTypeReason": "mobile — the national number falls in an unambiguous mobile range",
            "nationalNumber": "5321234567"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "phone"
                ],
                "properties": {
                  "phone": {
                    "type": "string",
                    "description": "Phone number"
                  },
                  "country": {
                    "type": "string",
                    "description": "Calling code, if the number has no +"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "routeTemplate": ":var1"
    },
    "builder-code": {
      "info": {
        "a": "bc_pa0gqlv1"
      },
      "schema": {
        "type": "object",
        "$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
      }
    }
  },
  "x402Version": 2,
  "alternatives": [
    {
      "url": "https://402.com.tr/api/x402/buy-credits?tier=0.25",
      "then": "Send the returned token as the `x-credit-token` header on this and any paid call; each debits its price from the balance — no per-call signature.",
      "gives": "≈8 calls at this service's price from one settlement; lowest-friction start.",
      "action": "buy-credits",
      "method": "POST",
      "priceUsdc": "0.25",
      "recommended": true
    },
    {
      "url": "https://402.com.tr/api/x402/phone-check?free=1",
      "gives": "1 free full call/day per IP — repeat this request with free=1 (or the header x-402-free: 1) and no payment header.",
      "action": "free-call",
      "method": "GET"
    },
    {
      "url": "https://402.com.tr/api/x402/phone-check",
      "gives": "Pay this exact call now over x402 — see the `accepts` array for scheme/amount/asset/payTo.",
      "action": "pay-x402",
      "method": "GET"
    }
  ],
  "prepaidCredits": "One x402 settlement on /api/x402/buy-credits?tier=0.25|1|5|20 mints a bearer credit token; send it as the x-credit-token header and later calls debit the balance — no wallet or signature per call after that first purchase."
}

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 0x973a…f12d6. The signed payment is good for 5 minutes.

Paid to
0x973a…f12d6
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
2000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x973a31858f4d2125f48c880542da11a2796f12d6",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {},
        "queryParams": {
          "phone": "+90 532 123 45 67",
          "country": "44"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "valid": true,
          "reason": null,
          "lineType": "mobile",
          "checkedAt": "2026-09-21T03:00:55.119Z",
          "lengthChecked": true,
          "nationalNumber": "5321234567"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "phone"
              ],
              "properties": {
                "phone": {
                  "type": "string",
                  "description": "Phone number"
                },
                "country": {
                  "type": "string",
                  "description": "Calling code, if the number has no +"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_pa0gqlv1"
    },
    "schema": {
      "type": "object",
      "$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
2026-09-21 03:00Z
Last indexed by Roundhouse
2026-09-24 02:00Z
Last enriched (probe, favicon, geo)
2026-09-23 19:15Z
x402 version
2
Max timeout
300s
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. 29 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 Phone Check 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=Phone%20Check'
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://402.com.tr/api/x402/phone-check, 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.