Copernicus Climate Data Store (BYOK)

Copernicus Climate Data Store (BYOK) — connector documentation

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

What Copernicus Climate Data Store (BYOK) is for

Copernicus Climate Data Store (BYOK) lets an AI assistant read your own Copernicus Climate Data Store data through the Copernicus Climate Data Store API with a key you supply (CDS personal access token). Read-only: 7 tools (search_datasets, get_dataset, get_dataset_form, get_dataset_constraints, list_licences, list_retrieval_processes, get_retrieval_process). 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 cds.climate.copernicus.eu. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by Copernicus Climate Data Store. Copernicus Climate Data Store 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:

• "Find Copernicus datasets about sea level"
• "Describe the ERA5 single levels dataset"
• "What options can I request for ERA5 single levels?"
• "Which request combinations are valid for ERA5 single levels?"
• "Which licences apply to Copernicus climate data?"
• "Which datasets can I submit download requests for?"

What it does

• search_datasets: Search the climate dataset catalogue by words and return id, title, description and temporal coverage of each dataset.
• get_dataset: Get one dataset's title, description, publication and update dates and spatial and temporal extent.
• get_dataset_form: Get the request form of a dataset: the selectable variables, years, formats and other widgets a download request can use.
• get_dataset_constraints: Get the valid combinations of request values of a dataset (which variables exist for which years and levels).
• list_licences: List the licences that apply to datasets and the portal, with id, revision and title.
• list_retrieval_processes: List the retrieval processes (one per downloadable dataset) the service offers.
• get_retrieval_process: Get the description of one retrieval process, including the inputs a request accepts.

BYOK key

You bring your own Copernicus Climate Data Store CDS personal access token (https://cds.climate.copernicus.eu/how-to-api). 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 cds.climate.copernicus.eu 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://github.com/ecmwf/ecmwf-datastores-client (the API this connector calls, with a BYOK key)

Live from the Copernicus Climate Data Store API (cds.climate.copernicus.eu) with a BYOK key; documentation: https://github.com/ecmwf/ecmwf-datastores-client. 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 Copernicus Climate Data Store. Copernicus Climate Data Store 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 Copernicus Climate Data Store account.

Built for: Worldwide. Languages: English.

Copernicus Climate Data Store (BYOK) — Privacy Policy

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

What Copernicus Climate Data Store (BYOK) is. Copernicus Climate Data Store (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own Copernicus Climate Data Store data: Browse the Copernicus Climate Data Store catalogue of climate datasets, their request forms, constraints and licences with your own personal access token. You bring your own Copernicus Climate Data Store CDS personal access token; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one Copernicus Climate Data Store 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 cds.climate.copernicus.eu, over https, and is removed from any text we return to you or your assistant. We do not follow redirects with your key. If Copernicus Climate Data Store 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 Copernicus Climate Data Store receives. The request we make on your behalf, including the key and the arguments, under Copernicus Climate Data Store's own terms and privacy policy. Copernicus Climate Data Store acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer Copernicus Climate Data Store 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 Copernicus Climate Data Store 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. Copernicus Climate Data Store (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 Copernicus Climate Data Store at any time to end all access.

Children. Copernicus Climate Data Store (BYOK) is a general-audience service operated by the adult using the assistant, under Copernicus Climate Data Store's own age rules.

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

Copernicus Climate Data Store (BYOK) — Terms of Service

Effective 24 October 2026. These terms govern use of the Copernicus Climate Data Store (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. Copernicus Climate Data Store (BYOK) provides: Browse the Copernicus Climate Data Store catalogue of climate datasets, their request forms, constraints and licences with your own personal access token. 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 Copernicus Climate Data Store credentials and only access data you are allowed to access. Copernicus Climate Data Store's terms apply to your use of Copernicus Climate Data Store; 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 Copernicus Climate Data Store. Copernicus Climate Data Store 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 Copernicus Climate Data Store returns, lightly trimmed; it may be incomplete, delayed or changed by Copernicus Climate Data Store. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your Copernicus Climate Data Store 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 Copernicus Climate Data Store'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; Copernicus Climate Data Store 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 Copernicus Climate Data Store 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 Copernicus Climate Data Store 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-copernicus-cds

Copernicus Climate Data Store (BYOK) support

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

• MCP endpoint: https://byok-copernicus-cds.connectorbay.com/mcp
• REST API: https://byok-copernicus-cds.connectorbay.com/openapi.json
• Live status: https://byok-copernicus-cds.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. Copernicus Climate Data Store (BYOK) never asks for them.