Estimates great-circle port distance and sailing time from supplied port coordin
Estimates great-circle port distance and sailing time from supplied port coordinates and speed. Missing facts are returned as null and named in unavailable_fields where applicable. Derived values disclose their method; source-backed values disclose source, time window and age.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
887 msmedian answer time
$0.004listed price per call
$0.004price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://fracht.halowerk.com/v1/port-pair
| Category | Everything else |
|---|---|
| Provider host | fracht.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.004 | 887 ms |
Example input (from the provider)
{
"body": {
"destination": {
"lat": 51.95,
"lon": 4.14
},
"detour_factor": 1.12,
"origin": {
"lat": 53.5461,
"lon": 9.9661
},
"speed_knots": 15
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"destination": {
"additionalProperties": false,
"properties": {
"lat": {
"description": "",
"maximum": 90,
"minimum": -90,
"type": "number"
},
"lon": {
"description": "",
"maximum": 180,
"minimum": -180,
"type": "number"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"detour_factor": {
"description": "",
"maximum": 5,
"minimum": 1,
"type": "number"
},
"origin": {
"additionalProperties": false,
"properties": {
"lat": {
"description": "",
"maximum": 90,
"minimum": -90,
"type": "number"
},
"lon": {
"description": "",
"maximum": 180,
"minimum": -180,
"type": "number"
}
},
"required": [
"lat",
"lon"
],
"type": "object"
},
"speed_knots": {
"description": "",
"maximum": 100,
"minimum": 0.1,
"type": "number"
}
},
"required": [
"origin",
"destination",
"speed_knots",
"detour_factor"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}