Met Office Weather Data Hub (BYOK)

Met Office Weather Data Hub (BYOK) — connector documentation

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

What Met Office Weather Data Hub (BYOK) is for

Met Office Weather Data Hub (BYOK) lets an AI assistant read your own Met Office Weather Data Hub data through the Met Office Weather Data Hub API with a key you supply (Weather DataHub API key (apikey)). Read-only: 6 tools (get_hourly_forecast, get_three_hourly_forecast, get_daily_forecast, list_bpf_collections, list_bpf_locations, get_bpf_forecast). 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 data.hub.api.metoffice.gov.uk. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Met Office Weather Data Hub. Met Office Weather Data Hub 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 hourly forecast for Exmouth at 50.7, -3.52?"
• "Give me the three-hourly forecast for 51.5, -0.12"
• "What is the daily forecast for Edinburgh at 55.95, -3.19?"
• "Which probabilistic forecast collections does Met Office offer?"
• "Which locations does the UK percentile forecast cover?"
• "What is the probabilistic forecast for location 0000046 in the UK percentiles collection?"

What it does

• get_hourly_forecast: Get the hourly site-specific forecast for the point nearest to a latitude and longitude (modelled screen temperature, wind, rain and more per hour).
• get_three_hourly_forecast: Get the three-hourly site-specific forecast for the point nearest to a latitude and longitude.
• get_daily_forecast: Get the daily site-specific forecast (day and night values) for the point nearest to a latitude and longitude.
• list_bpf_collections: List the blended probabilistic forecast collections available through Weather DataHub (percentile and probability products, UK and global).
• list_bpf_locations: List the spot locations (ids and names) of one blended probabilistic forecast collection.
• get_bpf_forecast: Get the blended probabilistic forecast of one location in a collection (percentiles or probabilities of weather parameters over time).

BYOK key

You bring your own Met Office Weather Data Hub Weather DataHub API key (apikey) (https://datahub.metoffice.gov.uk/). 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 data.hub.api.metoffice.gov.uk 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.

Data sources

• https://datahub.metoffice.gov.uk/docs/f/category/site-specific/overview (the API this connector calls, with a BYOK key)

Live from the Met Office Weather Data Hub API (data.hub.api.metoffice.gov.uk) with a BYOK key; documentation: https://datahub.metoffice.gov.uk/docs/f/category/site-specific/overview. 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 Met Office Weather Data Hub. Met Office Weather Data Hub 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 Met Office Weather Data Hub account.

Built for: Worldwide. Languages: English.

Met Office Weather Data Hub (BYOK) — Privacy Policy

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

What Met Office Weather Data Hub (BYOK) is. Met Office Weather Data Hub (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Met Office Weather Data Hub data: Read Met Office point forecasts (hourly, three-hourly, daily) and blended probabilistic forecasts from Weather DataHub with your own API key. You bring your own Met Office Weather Data Hub Weather DataHub API key (apikey); the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Met Office Weather Data Hub 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 data.hub.api.metoffice.gov.uk, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Met Office Weather Data Hub 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 Met Office Weather Data Hub receives. The request we make on your behalf, including the key and the arguments, under Met Office Weather Data Hub's own terms and privacy policy. Met Office Weather Data Hub acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Met Office Weather Data Hub 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 Met Office Weather Data Hub 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. Met Office Weather Data Hub (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 Met Office Weather Data Hub at any time to end all access.

Children. Met Office Weather Data Hub (BYOK) is a general-audience service operated by the adult using the assistant, under Met Office Weather Data Hub's own age rules.

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

Met Office Weather Data Hub (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Met Office Weather Data Hub (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Met Office Weather Data Hub (BYOK) provides: Read Met Office point forecasts (hourly, three-hourly, daily) and blended probabilistic forecasts from Weather DataHub 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 Met Office Weather Data Hub credentials and only access data you are allowed to access. Met Office Weather Data Hub's terms apply to your use of Met Office Weather Data Hub; 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 Met Office Weather Data Hub. Met Office Weather Data Hub 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 Met Office Weather Data Hub returns, lightly trimmed; it may be incomplete, delayed or changed by Met Office Weather Data Hub. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Met Office Weather Data Hub 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 Met Office Weather Data Hub'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; Met Office Weather Data Hub 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 Met Office Weather Data Hub 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 Met Office Weather Data Hub 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-metofficedatahub

Met Office Weather Data Hub (BYOK) support

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

• MCP endpoint: https://byok-metofficedatahub.connectorbay.com/mcp
• REST API: https://byok-metofficedatahub.connectorbay.com/openapi.json
• Live status: https://byok-metofficedatahub.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. Met Office Weather Data Hub (BYOK) never asks for them.