Response
{
"errors": {
"400": {
"description": "Invalid or missing parameter(s). Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints.",
"example": {
"error": "invalid request"
}
},
"402": {
"description": "Payment required \u2014 x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
},
"500": {
"description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit.",
"example": {
"error": "upstream_failed"
}
}
},
"example": {
"antecedent_covers_through": "2026-07-13",
"antecedent_lag_days": 0,
"antecedent_window": "Going is based on 5.3mm of OBSERVED rainfall over the last 7 days, measured at a real rain gauge through 2026-07-13 (no lag).",
"attribution": [
"Weather data from MET Norway (met.no), used under CC BY 4.0.",
"Observed rainfall from the UK Environment Agency real-time flood-monitoring API (environment.data.gov.uk), used under the Open Government Licence v3.0."
],
"data_basis": "observed_gauge",
"forecast_next_3d": [
{
"date": "2026-07-13",
"partial": true,
"precipitation_sum_mm": 0.2,
"temperature_max_c": 21,
"temperature_min_c": 12
}
],
"going": "Good to Firm",
"going_confidence": "high",
"going_description": "Fast ground, minimal cut \u2014 speed favoured",
"going_trend": "Drying \u2014 no significant rain forecast",
"moisture_index": 18.5,
"rain_7d_mm": 5.3,
"source_licences": [
{
"api": "https://api.met.no/weatherapi/locationforecast/2.0/",
"licence": "CC BY 4.0",
"licence_url": "https://creativecommons.org/licenses/by/4.0/",
"source": "MET Norway (Norwegian Meteorological Institute)"
},
{
"api": "https://environment.data.gov.uk/flood-monitoring/doc/rainfall",
"licence": "Open Government Licence v3.0",
"licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
"source": "UK Environment Agency real-time flood-monitoring API"
}
],
"temperature_c": 18.2,
"track": "ascot (UK)",
"wind_speed_kmh": 12.4
},
"type": "json"
}