BALLDONTLIE League of Legends (BYOK)

BALLDONTLIE League of Legends (BYOK) — connector documentation

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

What BALLDONTLIE League of Legends (BYOK) is for

BALLDONTLIE League of Legends (BYOK) lets an AI assistant read your own BALLDONTLIE League of Legends data through the BALLDONTLIE League of Legends API with a key you supply (BALLDONTLIE API key). Read-only: 10 tools (list_teams, list_players, list_champions, list_items, list_spells, list_runes, list_tournaments, list_tournament_teams, list_champion_stats, list_matches). 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.balldontlie.io. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by BALLDONTLIE League of Legends. BALLDONTLIE League of Legends 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 the League of Legends team T1"
• "Find the League of Legends player Faker"
• "Which champions exist in League of Legends?"
• "Which items exist in League of Legends?"
• "Which summoner spells exist in League of Legends?"
• "Which runes exist in League of Legends?"

What it does

• list_teams: List professional League of Legends teams with country and region, searchable by name.
• list_players: Search professional League of Legends players by nickname or team with country and birthday.
• list_champions: List all League of Legends champions with their ids.
• list_items: List League of Legends items with a trinket flag.
• list_spells: List League of Legends summoner spells.
• list_runes: List League of Legends runes with their type and rune path.
• list_tournaments: List League of Legends tournaments with dates, prize, tier and status. Needs the ALL-STAR plan or higher.
• list_tournament_teams: List the teams that take part in one League of Legends tournament. Needs the ALL-STAR plan or higher.
• list_champion_stats: List pick rate, win rate, ban rate and average kills, deaths and assists per champion in professional play. Needs the ALL-STAR plan or higher.
• list_matches: List professional League of Legends matches by tournament or team with scores, best-of type, status and winner. Needs the GOAT plan or higher.

BYOK key

You bring your own BALLDONTLIE League of Legends BALLDONTLIE API key (https://app.balldontlie.io). 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.balldontlie.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://www.balldontlie.io/openapi/lol.yml (the API this connector calls, with a BYOK key)

Live from the BALLDONTLIE League of Legends API (api.balldontlie.io) with a BYOK key; documentation: https://www.balldontlie.io/openapi/lol.yml. 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 BALLDONTLIE League of Legends. BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends account.

Built for: Worldwide. Languages: English.

BALLDONTLIE League of Legends (BYOK) — Privacy Policy

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

What BALLDONTLIE League of Legends (BYOK) is. BALLDONTLIE League of Legends (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own BALLDONTLIE League of Legends data: Read League of Legends esports teams, players, champions, items, tournaments, champion statistics and matches from BALLDONTLIE with your own API key. You bring your own BALLDONTLIE League of Legends BALLDONTLIE API key; the assistant sends it to us with each request.

BYOK key. The key you supply is used to make the one BALLDONTLIE League of Legends 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.balldontlie.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 BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends receives. The request we make on your behalf, including the key and the arguments, under BALLDONTLIE League of Legends's own terms and privacy policy. BALLDONTLIE League of Legends acts at your direction and is the only recipient of the data of your request besides our hosting provider.

What we return. The answer BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends 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. BALLDONTLIE League of Legends (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 BALLDONTLIE League of Legends at any time to end all access.

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

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

BALLDONTLIE League of Legends (BYOK) — Terms of Service

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

1. The Service. BALLDONTLIE League of Legends (BYOK) provides: Read League of Legends esports teams, players, champions, items, tournaments, champion statistics and matches from BALLDONTLIE 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 BALLDONTLIE League of Legends credentials and only access data you are allowed to access. BALLDONTLIE League of Legends's terms apply to your use of BALLDONTLIE League of Legends; 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 BALLDONTLIE League of Legends. BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends returns, lightly trimmed; it may be incomplete, delayed or changed by BALLDONTLIE League of Legends. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends'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; BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends 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 BALLDONTLIE League of Legends 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-balldontlie-lol

BALLDONTLIE League of Legends (BYOK) support

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

• MCP endpoint: https://byok-balldontlie-lol.connectorbay.com/mcp
• REST API: https://byok-balldontlie-lol.connectorbay.com/openapi.json
• Live status: https://byok-balldontlie-lol.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. BALLDONTLIE League of Legends (BYOK) never asks for them.