Roundhouse AI

api.strale.io

Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules.

OtherLiveeip155:8453Exactvia cdp
https://api.strale.io/x402/v2/work-permit-requirements
Calls · 30d
3↑ 171%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 12 snapshots so far.
$359.43
Verified settled volume
A floor: summed over 5,000 of 9,096 verified settlements.
$0.022
Listed price
As published in the catalog. Always read the live 402 before paying.
3
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-19 09:52Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x66D7C2F952362BFB24FD7F02a9beC9c754ea83bC

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. Work Permit Requirements costs $0.0216 USDC per call.",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x66D7C2F952362BFB24FD7F02a9beC9c754ea83bC",
      "amount": "21600",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.strale.io/x402/v2/work-permit-requirements",
      "description": "Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "purpose": {
              "type": "string"
            },
            "destination": {
              "type": "string",
              "required": true,
              "description": "Country code"
            },
            "nationality": {
              "type": "string",
              "required": true,
              "description": "Country code"
            }
          },
          "discoverable": true
        },
        "output": {
          "permit_type": {
            "type": "string"
          },
          "free_movement": {
            "type": "boolean"
          },
          "visa_required": {
            "type": "boolean"
          },
          "eu_blue_card_eligible": {
            "type": "boolean"
          }
        }
      },
      "maxAmountRequired": "21600",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://api.strale.io/x402/v2/work-permit-requirements",
    "mimeType": "application/json",
    "description": "Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "purpose": "example_purpose",
            "destination": "example_destination",
            "nationality": "example_nationality"
          }
        }
      },
      "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",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "nationality",
                  "destination"
                ],
                "properties": {
                  "purpose": {
                    "type": "string"
                  },
                  "destination": {
                    "type": "string",
                    "description": "Country code"
                  },
                  "nationality": {
                    "type": "string",
                    "description": "Country code"
                  }
                }
              }
            },
            "additionalProperties": false
          }
        }
      }
    }
  },
  "x402Version": 2,
  "paymentRequirements": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x66D7C2F952362BFB24FD7F02a9beC9c754ea83bC",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://api.strale.io/x402/v2/work-permit-requirements",
      "description": "Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "purpose": {
              "type": "string"
            },
            "destination": {
              "type": "string",
              "required": true,
              "description": "Country code"
            },
            "nationality": {
              "type": "string",
              "required": true,
              "description": "Country code"
            }
          },
          "discoverable": true
        },
        "output": {
          "permit_type": {
            "type": "string"
          },
          "free_movement": {
            "type": "boolean"
          },
          "visa_required": {
            "type": "boolean"
          },
          "eu_blue_card_eligible": {
            "type": "boolean"
          }
        }
      },
      "maxAmountRequired": "21600",
      "maxTimeoutSeconds": 300
    }
  ]
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.0216USDC≈ $0.0216 USD
on Base · exact scheme

Pay 0.0216 USDC on Base to 0x66D7…a83bC. The signed payment is good for 5 minutes.

Paid to
0x66D7…a83bC
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
21600 smallest units
Buys
Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x66D7C2F952362BFB24FD7F02a9beC9c754ea83bC",
    "amount": "21600",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.strale.io/x402/v2/work-permit-requirements",
    "description": "Check work permit requirements by nationality and destination. Covers EU free movement, Schengen, Nordic rules.",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "purpose": {
            "type": "string"
          },
          "destination": {
            "type": "string",
            "required": true,
            "description": "Country code"
          },
          "nationality": {
            "type": "string",
            "required": true,
            "description": "Country code"
          }
        },
        "discoverable": true
      },
      "output": {
        "permit_type": {
          "type": "string"
        },
        "free_movement": {
          "type": "boolean"
        },
        "visa_required": {
          "type": "boolean"
        },
        "eu_blue_card_eligible": {
          "type": "boolean"
        }
      }
    },
    "maxAmountRequired": "21600",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "purpose": "example_purpose",
          "destination": "example_destination",
          "nationality": "example_nationality"
        }
      }
    },
    "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",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "nationality",
                "destination"
              ],
              "properties": {
                "purpose": {
                  "type": "string"
                },
                "destination": {
                  "type": "string",
                  "description": "Country code"
                },
                "nationality": {
                  "type": "string",
                  "description": "Country code"
                }
              }
            }
          },
          "additionalProperties": false
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-19 09:52Z
Last indexed by Roundhouse
2026-09-20 00:40Z
Last enriched (probe, favicon, geo)
2026-09-24 04:45Z
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. 12 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.strale.io 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.strale.io'
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.strale.io/x402/v2/work-permit-requirements, 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.