Sold by: Atlas United
Hour-by-hour forecast for any U.S. coordinate, 0 to 48 hours ahead, with the nearest available hour reported. $0.0002 per call with details. Batch up to 500 locations.
Overview
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Product overview
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Sample response
Model-Based Hourly Forecast by Address returns forecast hours for any U.S. coordinate. Set hours_ahead from 0 to 48 and the response reports the forecast hour actually used, so you always know which hour you received.
Each forecast hour carries a core set of roughly 40 variables, including temperature, dewpoint, humidity, wind speed, gust and direction, precipitation, visibility, pressure, hail size, lightning rate, reflectivity and a tornado rotation score. Units are stated in each field name.
Pricing is $0.0002 per call with details=true, or $0.0002 per location through the batch route for up to 500 locations. The lean response is free. Forecast hours carry fewer fields than current conditions, and this is weather data, not a hazard or damage assessment.
Built by Atlas United. Not affiliated with NOAA or the NWS.
Highlights
- Hourly forecast for any U.S. coordinate, 0 to 48 hours ahead, with the forecast hour used stated in every response.
- Roughly 40 core variables per hour including hail size, lightning rate and a tornado rotation score.
- $0.0002 per call, or per location in a batch of up to 500. Free lean response.
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Pricing
Pricing is based on actual usage, with charges varying according to how much you consume. Subscriptions have no end date and may be canceled any time.
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Dimension | Description | Cost/unit |
|---|---|---|
Hourly forecast calls | One hourly forecast call or one batch location, priced per call | $0.0002 |
Dimensions summary
This listing uses one usage-based dimension. You pay per hourly forecast call, with no seats, plans, or contracts. Each call returns a short-term weather forecast for a U.S. coordinate, from the current hour up to 48 hours ahead. A single API call covers one location. You can also submit a batch of up to 500 locations in one call, and each location in that batch counts as one unit. Your prepaid balance drops by exactly what you use, so cost scales directly with the number of calls or batch locations you request.
Top-of-mind questions for buyers
One call is one request to the forecast endpoint for one latitude/longitude pair. The response snaps to the nearest available hour and reports which forecast hour it used. Each call bills the same regardless of how many hours ahead you request, from 0 to 48.
A batch call covers up to 500 locations in one request. Each location in the batch counts as one unit. So a batch of 500 coordinates bills as 500 units, not one. Your balance drops by exactly the number of locations returned.
Lean responses with core fields are free and need no account. You are billed only when you request the full pull using details=true. That full pull returns about 40 core fields plus a tornado rotation score, and it meters per call.
atlasunited.io
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Vendor refund policy
Usage is billed only for records returned to you. If a response was billed in error, such as a failed pull or a duplicate charge, contact us within 30 days with the reference_id from the response and we will review it and refund or credit the billed usage. Records already delivered and correctly billed are not refundable. Contact: https://atlasunited.io/api
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Delivery details
API-Based Agents & Tools
API-Based Agents and Tools integrate through standard web protocols. Your applications can make API calls to access agent capabilities and receive responses.
Additional details
Usage instructions
API
To get started with Model-Based Hourly Forecast by Address, follow the instructions below.
Prerequisites An active subscription to this listing on AWS Marketplace and any HTTP client or AI agent with HTTP access.
Authentication
- After you subscribe, choose "Set up your account" and finish the short form. Your API key is shown once on that page. If you lose it, choose "Set up your account" again in AWS Marketplace to get a new key; the old key stops working.
- Send the key on every paid request in this HTTP header: Authorization: Bearer YOUR_API_KEY Replace YOUR_API_KEY with your actual key. Free previews need no key.
Endpoint: GET <https://data.truefixr.com/v1/data> with dataset=weather and hours_ahead POST <https://data.truefixr.com/v1/data> accepts the same parameters as a JSON body. A batch route, POST <https://data.truefixr.com/v1/weather/batch>, takes up to 500 locations per call. Returns the hourly forecast for a US coordinate, up to 48 hours ahead. The request snaps to the nearest available forecast hour, and forecast_hour_used tells you exactly which hour you received.
Query Parameters:
| Param | Type | Description |
|---|---|---|
| dataset | string | weather (required) |
| lat, lon | number | US coordinate (required) |
| hours_ahead | int | 0 to 48 (required for the hourly forecast) |
| details | boolean | true returns the full paid forecast. Omit for a free lean response. |
Example Request:
curl "https://data.truefixr.com/v1/data?dataset=weather&lat=31.07&lon=-97.65&hours_ahead=12&details=true" \ -H "Authorization: Bearer YOUR_API_KEY"Example Request (batch, one location billed per entry):
curl -X POST "https://data.truefixr.com/v1/weather/batch" -H "Content-Type: application/json" \ -H "Authorization: Bearer YOUR_API_KEY" -d '{"locations":[{"lat":30.27,"lon":-97.74,"label":"my-ref"}]}'Response Schema:
{"location":{"lat":number,"lon":number},"forecast_hour_used":number,"valid_time":"UTC timestamp", "temperature_f":number,"humidity_pct":number,"wind_speed_mph":number,"wind_gust_mph":number, "precip_in":number,"pressure_mb":number,"alerts":[], "dataset":"weather","billed":boolean,"billed_usd":number,"unit_price_usd":number, "model_run_time":"UTC timestamp","served_at":"UTC timestamp"}Forecast hours carry the core conditions only. A null value means not available for that hour. Example Response:
{"location":{"lat":31.0714,"lon":-97.6616},"forecast_hour_used":12,"temperature_f":75.0,"humidity_pct":89.5,"wind_speed_mph":11.5,"precip_in":0.86,"billed_usd":0.0002}Pricing: $0.0002 per call (or per location in a batch). Billing unit: hourly_forecast_calls.
Error Codes
| Status | Code | Meaning |
|---|---|---|
| 400 | bad_request | A required parameter is missing or invalid. The detail field says which. |
| 401 | unauthorized | The key is not valid. |
| 402 | payment_required | A paid pull was requested without a valid key or enough prepaid balance. |
| 404 | not_found | No data for that location or filter. |
| 422 | invalid_parameter | A parameter value is not accepted. The response names the field and accepted values. |
| 429 | rate_limited | Too many requests. Wait and retry with exponential backoff. |
| 500, 502, 503 | server_error | Temporary server problem. Retry later. |
Error responses follow this structure: {"detail": "dataset=risk needs county+state, or lat+lon", "code": "bad_request", "request_id": "f38f7e69f7fb4ad4"} Quote the request_id (or the reference_id on a paid response) in a support request.
Learn More Docs: https://atlasunited.io/api Menu of every dataset, parameter and price: GET https://data.truefixr.com/v1/data MCP server for AI agents: https://mcp.atlasunited.io/mcp
Support
Vendor support
Support: https://atlasunited.io/api (docs, pricing, free previews). Email support is answered by the Atlas United team on business days. Every paid response carries a reference_id receipt you can quote in a support request.
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