Open Weather One Call (BYOK)

Open Weather One Call (BYOK) — connector documentation

• MCP endpoint: https://byok-openweathermap-onecall.connectorbay.com/mcp
• REST API: POST https://byok-openweathermap-onecall.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-openweathermap-onecall.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own Open Weather One Call API key, sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-openweathermap-onecall.connectorbay.com/health · Tool schemas: https://byok-openweathermap-onecall.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-openweathermap-onecall · agent@connectorbay.com

What Open Weather One Call (BYOK) is for

Open Weather One Call (BYOK) lets an AI assistant read your own Open Weather One Call data through the Open Weather One Call API with a key you supply (API key). Read-only: 8 tools (get_current_conditions, get_minute_forecast, get_hourly_forecast, get_daily_forecast, get_weather_alerts, get_weather_at_time, get_daily_summary, get_weather_overview). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.openweathermap.org. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Open Weather One Call. Open Weather One Call and its logos are trademarks of their owners and are used only to say which service the connector works with.

Ask your assistant things like:

• "What is the weather right now at latitude 33.44, longitude -94.04?"
• "Will it rain in the next hour at latitude 33.44, longitude -94.04?"
• "What is the hourly forecast for the next two days at latitude 33.44, longitude -94.04?"
• "What is the 8 day forecast at latitude 33.44, longitude -94.04?"
• "Are there any government weather alerts at latitude 33.44, longitude -94.04?"
• "What was the weather at latitude 39.10, longitude -94.58 at Unix time 1643803200?"

What it does

• get_current_conditions: Get the current weather at a latitude and longitude: temperature, feels-like, pressure, humidity, dew point, clouds, UV index, visibility, wind, rain and snow. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_minute_forecast: Get the minute-by-minute precipitation forecast (mm/h) for the next hour at a latitude and longitude. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_hourly_forecast: Get the hourly forecast for the next 48 hours at a latitude and longitude: temperature, humidity, wind, clouds, UV and probability of precipitation. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_daily_forecast: Get the daily forecast for the next 8 days at a latitude and longitude: temperature range, sunrise, sunset, moon phase, wind, rain, snow and a text summary. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_weather_alerts: Get active government weather alerts for a latitude and longitude from national warning systems: sender, event, start, end, description and tags. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_weather_at_time: Get the weather for one timestamp at a latitude and longitude, from 1 January 1979 up to 4 days ahead. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_daily_summary: Get the aggregated weather of one calendar day at a latitude and longitude: min and max temperature, morning to night temperatures, humidity, pressure, cloud cover and total precipitation (1979 up to 1.5 years ahead). Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.
• get_weather_overview: Get a short human-readable weather summary for today or tomorrow at a latitude and longitude, generated by OpenWeather. Needs the One Call API subscription: 1,000 calls per day are free, calls beyond that are billed per call if the account allows it.

BYOK key

You bring your own Open Weather One Call API key (https://home.openweathermap.org/api_keys). Your assistant sends it in the X-Upstream-Key header with each request. ConnectorBay uses it for that one call only: it is never stored, logged or cached, never shown in an answer, and it is only sent to api.openweathermap.org over https, with no redirects followed. Create a key with the fewest permissions the tools need (read-only if the provider offers it), and revoke it at the provider whenever you like.

Notices

OpenWeather data is licensed under CC BY-SA 4.0 and ODbL: credit OpenWeather and share derived data under the same terms.

Data sources

• https://openweathermap.org/api/one-call-3 (the API this connector calls, with a BYOK key)

Live from the Open Weather One Call API (api.openweathermap.org) with a BYOK key; documentation: https://openweathermap.org/api/one-call-3. Endpoints checked against that documentation on 2026-10-16.

What it is not

Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Open Weather One Call. Open Weather One Call and its logos are trademarks of their owners and are used only to say which service the connector works with. It is read-only: it never creates, changes, sends or deletes anything in your Open Weather One Call account.

Built for: Worldwide. Languages: English.

Open Weather One Call (BYOK) — Privacy Policy

Effective 24 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What Open Weather One Call (BYOK) is. Open Weather One Call (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Open Weather One Call data: Read current conditions, minute, hourly and daily forecasts, government weather alerts, history by timestamp and daily summaries from OpenWeather One Call 3.0 with your own API key. You bring your own Open Weather One Call API key; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Open Weather One Call call you asked for. Our application does not store it, write it to a log, put it in a cache, or share it. It is sent only to api.openweathermap.org, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Open Weather One Call rejects it, we say so without repeating it.

What we receive. The arguments of each tool call, the BYOK key (for that call only), the technical headers needed to serve the request (an IP address or a client identifier supplied by the assistant) and standard server logs. What Open Weather One Call receives. The request we make on your behalf, including the key and the arguments, under Open Weather One Call's own terms and privacy policy. Open Weather One Call acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Open Weather One Call gives for your request, trimmed to the fields the tool documents. We do not keep it: it is returned to your assistant and not stored, cached or used to train anything.

What we do not do. We do not build a profile, sell or share personal information, or keep your Open Weather One Call data. Rate-limit counters (a client identifier and timestamps) are held in memory for at most 24 hours. Hosting access logs (IP addresses, request paths and status codes) are kept for up to 30 days for security and abuse prevention; our application adds no request headers or bodies to them.

Sub-processors. Open Weather One Call (the API you call with a BYOK key, at your direction). Hosting: Vercel (United States regions).

Your rights. Because we store no personal data beyond short-lived logs, requests to access, correct or delete data are usually satisfied automatically; you can still contact agent@connectorbay.com and we will respond within 30 days. Revoke your key at Open Weather One Call at any time to end all access.

Children. Open Weather One Call (BYOK) is a general-audience service operated by the adult using the assistant, under Open Weather One Call's own age rules.

Changes. We will post changes here with a new effective date.

Open Weather One Call (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Open Weather One Call (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Open Weather One Call (BYOK) provides: Read current conditions, minute, hourly and daily forecasts, government weather alerts, history by timestamp and daily summaries from OpenWeather One Call 3.0 with your own API key. It is accessed through an AI assistant or directly over MCP or HTTP, and is read-only.
2. Your own key, your own account. You must use your own Open Weather One Call credentials and only access data you are allowed to access. Open Weather One Call's terms apply to your use of Open Weather One Call; you are responsible for complying with them, including any rate limits and permitted uses. Do not share a key you do not own.
3. Independent. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Open Weather One Call. Open Weather One Call and its logos are trademarks of their owners and are used only to say which service the connector works with.
4. No advice, no guarantees. Output is the data Open Weather One Call returns, lightly trimmed; it may be incomplete, delayed or changed by Open Weather One Call. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Open Weather One Call account.
6. Acceptable use. Automated use within the published rate limits is welcome. Do not use the Service to access data you are not entitled to, to circumvent Open Weather One Call's controls, or to attack any system.
7. Availability. The Service is provided "as is" without warranty. We may change, limit or discontinue it at any time; Open Weather One Call may change or end its API at any time.
8. Data. Our Privacy Policy describes what we process. In short: the BYOK key is used for the one call and not stored or logged.
9. Pro keys. Optional ConnectorBay Pro API keys are issued at our discretion and are separate from your Open Weather One Call key.
10. Liability. To the fullest extent permitted by law, Unify Dynamics LLC is not liable for any loss arising from use of or reliance on the Service, including any action Open Weather One Call takes on your account. Our total liability is limited to US $100.
11. Governing law. California law; venue in San Mateo County, California.
12. Contact. Unify Dynamics LLC · agent@connectorbay.com · https://connectorbay.com/byok-openweathermap-onecall

Open Weather One Call (BYOK) support

Email agent@connectorbay.com. We answer within two business days.

• MCP endpoint: https://byok-openweathermap-onecall.connectorbay.com/mcp
• REST API: https://byok-openweathermap-onecall.connectorbay.com/openapi.json
• Live status: https://byok-openweathermap-onecall.connectorbay.com/health

When you report a problem, include the question you asked your agent, roughly when, and which agent you used (for example Claude, ChatGPT or Gemini). Never send us passwords, account numbers or ID numbers. Open Weather One Call (BYOK) never asks for them.