Roundhouse

api.limitguard.ai

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb
https://api.limitguard.ai/v1/leads/verify
Calls · 30d
4↑ 27%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 19 snapshots so far.
$13.81
Verified settled volume
42 settlements proven x402 by their on-chain EIP-3009 marker.
$0.100
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
0x6454a645C92B8722EC9A07FCe12A582A877B8843

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",
        "decimals": 6
      },
      "payTo": "0x6454a645C92B8722EC9A07FCe12A582A877B8843",
      "amount": "100000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.limitguard.ai/v1/leads/verify",
      "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN country and bank (not the holder), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score and flags, each with one action. An input not given is not checked.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 600
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "name": "USDC",
        "version": "2",
        "decimals": 6,
        "feePayer": "2jMbAFjK2joDBaecvvNDBKU1BTyj3FuvV1ZTmvTkKQu8"
      },
      "payTo": "P9Mqh3W5sR5CqJAWYJFQePVaUs5GBfnonsaCdT7FbEQ",
      "amount": "100000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "mimeType": "application/json",
      "resource": "https://api.limitguard.ai/v1/leads/verify",
      "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN country and bank (not the holder), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score and flags, each with one action. An input not given is not checked.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 600
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "proof": "transactionHash",
        "header": "X-PAYMENT",
        "decimals": 6,
        "challengeId": "-WTdx9doKbdQLw9BetUeg8Lh0RzJJfE1",
        "paymentFlow": "upfront",
        "instructions": "Already sent the USDC? Transfer at least 100000 units to payTo on this network, then retry with '0x<64-hex transaction hash>' as your PAYMENT-SIGNATURE (x402 v2) or X-PAYMENT (v1) header AND the X-Payment-Challenge header from the payment-required response you were quoted this resource with (extra.challengeId there). The receipt is read on chain; the transfer must be within the last 150 blocks, each hash pays once, and only the caller that received that challenge can redeem it. Optionally also send X-Payment-Challenge-Signature: the sending wallet's signature over the challenge message (layout on the x402 protocol page). It is optional today and will become required; signing makes your hash unredeemable by anyone else. A redemption sent right after mining can be refused with errorCode settlement_not_yet_visible while our node catches up; the hash is not consumed, so wait for Retry-After and send the same request again.",
        "challengeHeader": "X-Payment-Challenge",
        "challengeSignatureHeader": "X-Payment-Challenge-Signature"
      },
      "payTo": "0x6454a645C92B8722EC9A07FCe12A582A877B8843",
      "amount": "100000",
      "scheme": "settled-transfer",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.limitguard.ai/v1/leads/verify",
      "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN country and bank (not the holder), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score and flags, each with one action. An input not given is not checked.",
      "maxAmountRequired": "100000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.limitguard.ai/v1/leads/verify",
    "tags": [
      "kyb",
      "sanctions",
      "lead-verification",
      "wallet-screening",
      "compliance"
    ],
    "iconUrl": "https://limitguard.ai/icon-512.png",
    "mimeType": "application/json",
    "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN country and bank (not the holder), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score and flags, each with one action. An input not given is not checked.",
    "serviceName": "Limitguard"
  },
  "errorCode": "payment_required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "country": "NL"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "vat": {
              "valid": null,
              "reason": null,
              "checked": false,
              "name_match": null
            },
            "iban": {
              "bic": "ABNANL2A",
              "bank": "ABN AMRO BANK N.V.",
              "last4": "4300",
              "valid": true,
              "checked": true,
              "country": "NL",
              "holder_checked": false,
              "country_agreement": true
            },
            "email": {
              "has_mx": true,
              "checked": true,
              "disposable": false
            },
            "flags": [],
            "reason": null,
            "company": {
              "status": "active",
              "sbi_main": "01241",
              "age_years": 9.4,
              "employees": 1,
              "legal_form": "Besloten vennootschap",
              "name_match": 1,
              "registered": true,
              "address_match": 1,
              "registered_name": "Test BV Donald",
              "address_shielded": false,
              "registered_since": "2017-05-19",
              "registered_address": {
                "city": "Lollum",
                "street": "Hizzaarderlaan",
                "country": "NL",
                "postcode": "8823 SJ",
                "house_number": "3 A"
              }
            },
            "icp_fit": null,
            "verdict": "real_active",
            "findings": [],
            "sanctions": {
              "hit": false,
              "reason": null,
              "screened": true,
              "lists_as_of": {
                "OFAC SDN": "2026-10-01"
              }
            },
            "checked_at": "2026-10-02T10:00:00+00:00",
            "lead_score": 95,
            "correlations": {
              "phone_match": null,
              "kbo_contact_match": null,
              "kvk_website_match": null,
              "kbo_vat_address_match": null,
              "website_identifier_match": null
            },
            "dormant_shell": {
              "score": 0,
              "flag_at": 50,
              "signals": [],
              "unknown": [
                "no_website",
                "no_annual_accounts"
              ]
            },
            "schema_version": "lead-verify-v1",
            "website_phones": [],
            "sources_checked": 4,
            "website_phones_reason": "website_phones_disabled",
            "discovered_identifiers": [],
            "identifier_discovery_reason": "number_given"
          }
        },
        "sandbox": {
          "url": "https://api.limitguard.ai/v1/keys/create",
          "curl": "curl -s -X POST https://api.limitguard.ai/v1/keys/create -H 'Content-Type: application/json' -d '{\"email\": \"you@example.com\", \"tier\": \"sandbox\"}'",
          "note": "Free sandbox key, no wallet. POST here with tier=sandbox to get an lg_sandbox_ key; send it as X-API-Key for free mock data on the entity, risk, KYB, reputation and sanctions routes (10 req/min). Or sign up for 5 free lead checks (once per verified company, used within 30 days; a full report is paid): https://dashboard.limitguard.ai/sign-up?utm_source=api&utm_medium=agent&utm_campaign=signup&utm_content=x402_hint. Or screen a name against the OFAC, EU and UN sanctions lists free first: POST https://api.limitguard.ai/v1/sanctions/preview, or a wallet address against the OFAC SDN list: POST https://api.limitguard.ai/v1/sanctions/wallet."
        },
        "recovery": {
          "url": "https://api.limitguard.ai/v1/quickstart",
          "curl": "curl -s https://api.limitguard.ai/v1/quickstart"
        },
        "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN country and bank (not the holder), and the company name against the OFAC, EU and UN sanctions lists. Returns a verdict, a 0-100 lead score and flags, each with one action. An input not given is not checked.",
        "documentation_url": "https://docs.limitguard.ai/x402-protocol?utm_source=api&utm_medium=agent&utm_campaign=docs&utm_content=x402_protocol"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "note": {
            "type": "string"
          },
          "input": {
            "type": "object",
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "properties": {
              "body": {
                "type": "object",
                "required": [
                  "country"
                ],
                "properties": {
                  "iban": {
                    "type": "string",
                    "description": "IBAN the lead gave; validated locally, only the last 4 are returned"
                  },
                  "name": {
                    "type": "string",
                    "description": "Company name as the lead gave it"
                  },
                  "email": {
                    "type": "string",
                    "description": "Contact email; only its domain is checked"
                  },
                  "domain": {
                    "type": "string",
                    "description": "Company website domain"
                  },
                  "address": {
                    "type": "object",
                    "properties": {
                      "city": {
                        "type": "string"
                      },
                      "street": {
                        "type": "string"
                      },
                      "postcode": {
                        "type": "string"
                      },
                      "house_number": {
                        "type": "string"
                      }
                    },
                    "description": "Address the lead gave, compared with the registered address"
                  },
                  "country": {
                    "type": "string",
                    "description": "Register country: NL (KVK) or BE (KBO)"
                  },
                  "vat_number": {
                    "type": "string",
                    "description": "EU VAT number, checked with VIES"
                  },
                  "target_size": {
                    "type": "object",
                    "properties": {
                      "max": {
                        "type": "integer",
                        "minimum": 0
                      },
                      "min": {
                        "type": "integer",
                        "minimum": 0
                      }
                    },
                    "description": "Ideal-customer employee range, both ends inclusive. Information only.",
                    "additionalProperties": false
                  },
                  "company_number": {
                    "type": "string",
                    "description": "8-digit KVK number or 10-digit KBO/CBE number. company_number or name is required; BE needs company_number"
                  },
                  "target_industries": {
                    "type": "array",
                    "items": {
                      "type": "string",
                      "maxLength": 100
                    },
                    "maxItems": 20,
                    "description": "Ideal-customer industries: SBI/NACE code prefixes (\"62\", \"64.20\") or plain words matched as whole words against the register's activity descriptions. Information only: never changes the score."
                  }
                }
              },
              "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": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          },
          "sandbox": {
            "type": "object",
            "required": [
              "url"
            ],
            "properties": {
              "url": {
                "type": "string"
              },
              "curl": {
                "type": "string"
              },
              "note": {
                "type": "string"
              }
            }
          },
          "recovery": {
            "type": "object",
            "required": [
              "url"
            ],
            "properties": {
              "url": {
                "type": "string"
              },
              "curl": {
                "type": "string"
              }
            }
          },
          "prepaidBalance": {
            "type": "object",
            "required": [
              "balance_usd",
              "price_usd"
            ],
            "properties": {
              "note": {
                "type": "string"
              },
              "topup": {
                "type": "object",
                "required": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string"
                  },
                  "curl": {
                    "type": "string"
                  },
                  "minimum_usd": {
                    "type": "integer"
                  }
                }
              },
              "reason": {
                "type": "string"
              },
              "price_usd": {
                "type": "number"
              },
              "balance_usd": {
                "type": [
                  "number",
                  "null"
                ]
              }
            }
          },
          "documentation_url": {
            "type": "string"
          },
          "cachedTierAvailable": {
            "type": "boolean"
          }
        }
      }
    }
  },
  "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.

0.1USDC≈ $0.1 USD
on Base · exact scheme

Pay 0.1 USDC on Base to 0x6454…B8843. The signed payment is good for 10 minutes.

Paid to
0x6454…B8843
USD Coin contract
0x8335…02913
Payment window
10 minutes
As published
100000 smallest units
Buys
Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN coun…
Returns
application/json
100000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · 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
P9Mqh3…7FbEQ
Token contract
EPjFWd…TDt1v
Payment window
10 minutes
Buys
Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN coun…
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "decimals": 6
    },
    "payTo": "0x6454a645C92B8722EC9A07FCe12A582A877B8843",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.limitguard.ai/v1/leads/verify",
    "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN coun…",
    "maxAmountRequired": "100000",
    "maxTimeoutSeconds": 600
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "name": "USDC",
      "version": "2",
      "decimals": 6,
      "feePayer": "2jMbAFjK2joDBaecvvNDBKU1BTyj3FuvV1ZTmvTkKQu8"
    },
    "payTo": "P9Mqh3W5sR5CqJAWYJFQePVaUs5GBfnonsaCdT7FbEQ",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "mimeType": "application/json",
    "resource": "https://api.limitguard.ai/v1/leads/verify",
    "description": "Lead verify for one NL or BE sales lead: is it a real, active company? Checks the KVK or KBO register and cross-checks what the lead holds: VAT with VIES, mail server and disposable domain, IBAN coun…",
    "maxAmountRequired": "100000",
    "maxTimeoutSeconds": 600
  }
]

Provenance

Seen in the source catalog
2026-10-14 21:51Z
Last indexed by Roundhouse
2026-10-25 19:46Z
Last enriched (probe, favicon, geo)
2026-10-19 12:15Z
x402 version
1
Max timeout
600s
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. 19 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.limitguard.ai 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.limitguard.ai'
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.limitguard.ai/v1/leads/verify, 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.