BabelNet (BYOK)

BabelNet (BYOK) — connector documentation

• MCP endpoint: https://byok-babelnet.connectorbay.com/mcp
• REST API: POST https://byok-babelnet.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-babelnet.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own BabelNet BabelNet API key (1000 queries per day on a free account), sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-babelnet.connectorbay.com/health · Tool schemas: https://byok-babelnet.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-babelnet · agent@connectorbay.com

What BabelNet (BYOK) is for

BabelNet (BYOK) lets an AI assistant read your own BabelNet data through the BabelNet API with a key you supply (BabelNet API key (1000 queries per day on a free account)). Read-only: 6 tools (get_version, get_synset_ids, get_synset, get_senses, get_outgoing_edges, get_synset_ids_from_resource_id). 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 babelnet.io. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by BabelNet. BabelNet 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:

• "Which BabelNet version is the API serving?"
• "Which BabelNet concepts can the English word 'apple' mean?"
• "Give me the definitions of BabelNet synset bn:03083790n"
• "Show the BabelNet senses of the word 'BabelNet' in English"
• "What is bn:03083790n an instance of in BabelNet?"
• "Which BabelNet synset matches the Wikidata item Q4837690?"

What it does

• get_version: Show which BabelNet version the API currently serves. Costs one query from the daily allowance.
• get_synset_ids: Find the ids of the BabelNet synsets (concepts) that a word can denote in a language, with part of speech and source. Costs one query.
• get_synset: Get one BabelNet synset: its glosses (definitions) in several languages, example sentences, type, domains and WordNet offsets. The long list of senses is left out; use get_senses for those. Costs one query.
• get_senses: List the senses (lemma, language, part of speech, source and synset) of a word, for example the translations of a concept. Costs one query.
• get_outgoing_edges: List the relations that leave a synset (hypernym, hyponym, part-of and more) with relation name, group and the target synset id. Costs one query.
• get_synset_ids_from_resource_id: Map an identifier from another resource (a Wikipedia page title, a Wikidata id such as Q4837690, a WordNet id) to BabelNet synset ids. Costs one query.

BYOK key

You bring your own BabelNet BabelNet API key (1000 queries per day on a free account) (https://babelnet.org/login). 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 babelnet.io 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://babelnet.org/guide (the API this connector calls, with a BYOK key)

Live from the BabelNet API (babelnet.io) with a BYOK key; documentation: https://babelnet.org/guide. 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 BabelNet. BabelNet 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 BabelNet account.

Built for: Worldwide. Languages: English.

BabelNet (BYOK) — Privacy Policy

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

What BabelNet (BYOK) is. BabelNet (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own BabelNet data: Look up words, concepts and senses in the multilingual BabelNet semantic network (glosses, translations, relations) with your own API key. You bring your own BabelNet BabelNet API key (1000 queries per day on a free account); the assistant sends it to us with each request.

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

What we return. The answer BabelNet 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 BabelNet 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. BabelNet (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 BabelNet at any time to end all access.

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

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

BabelNet (BYOK) — Terms of Service

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

1. The Service. BabelNet (BYOK) provides: Look up words, concepts and senses in the multilingual BabelNet semantic network (glosses, translations, relations) 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 BabelNet credentials and only access data you are allowed to access. BabelNet's terms apply to your use of BabelNet; 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 BabelNet. BabelNet 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 BabelNet returns, lightly trimmed; it may be incomplete, delayed or changed by BabelNet. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your BabelNet 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 BabelNet'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; BabelNet 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 BabelNet 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 BabelNet 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-babelnet

BabelNet (BYOK) support

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

• MCP endpoint: https://byok-babelnet.connectorbay.com/mcp
• REST API: https://byok-babelnet.connectorbay.com/openapi.json
• Live status: https://byok-babelnet.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. BabelNet (BYOK) never asks for them.