HG Brasil Finance (BYOK)

HG Brasil Finance (BYOK) — connector documentation

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

What HG Brasil Finance (BYOK) is for

HG Brasil Finance (BYOK) lets an AI assistant read your own HG Brasil Finance data through the HG Brasil Finance API with a key you supply (HG Brasil API key). Read-only: 9 tools (get_market_overview, get_quotations, get_interest_rates, list_tickers, get_asset_price, get_ibovespa_top_gainers, get_ibovespa_top_losers, get_dividends, get_price_history). 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.hgbrasil.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by HG Brasil Finance. HG Brasil Finance 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 are the dollar rate, the Ibovespa and the Selic rate in Brazil today?"
• "What is the euro worth in reais right now?"
• "What are the current CDI and Selic rates?"
• "Which tickers can I query on HG Brasil Finance?"
• "What is the price of PETR4 and the dollar rate in reais?"
• "Which Ibovespa stocks are rising the most today?"

What it does

• get_market_overview: Get a Brazilian market snapshot in one answer: exchange rates against the real, stock index levels, Bitcoin prices on several exchanges and the CDI and Selic rates.
• get_quotations: Get only the currency rates against the real, the stock index levels and the Bitcoin prices (no interest rates).
• get_interest_rates: Get the Brazilian CDI and Selic interest rates with the daily factor.
• list_tickers: List the ticker symbols the stock endpoints accept (stocks, real estate funds, BDRs, currencies, indices, crypto), optionally one asset type.
• get_asset_price: Get price, daily change, volume, market cap, sector and dividend yield for assets by symbol (ticker symbols such as PETR4, HGLG11, USDBRL or BVSP; list_tickers shows the supported ones). Needs the Member Premium plan or higher; several symbols at once need Professional or Enterprise. Data can be delayed 15 to 60 minutes.
• get_ibovespa_top_gainers: List the Ibovespa stocks with the biggest daily gains, with price, change and volume. Needs the Professional plan or higher.
• get_ibovespa_top_losers: List the Ibovespa stocks with the biggest daily losses, with price, change and volume. Needs the Professional plan or higher.
• get_dividends: Get the dividend and yield payment history of stocks, real estate funds and BDRs by symbol: type, amount, approval date, last trading date and payment date. Needs the Professional plan or higher.
• get_price_history: Get open, high, low, close and volume candles for assets, currencies and indices. Choose one date filter: days_ago, date, or start_date with end_date. Needs a plan with historical finance data; the allowed range and symbol count depend on the plan.

BYOK key

You bring your own HG Brasil Finance HG Brasil API key (https://console.hgbrasil.com/keys/new_key_plan). 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.hgbrasil.com 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://console.hgbrasil.com/documentation/finance (the API this connector calls, with a BYOK key)

Live from the HG Brasil Finance API (api.hgbrasil.com) with a BYOK key; documentation: https://console.hgbrasil.com/documentation/finance. 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 HG Brasil Finance. HG Brasil Finance 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 HG Brasil Finance account.

Built for: Worldwide. Languages: English.

HG Brasil Finance (BYOK) — Privacy Policy

Effective 16 October 2026. Unify Dynamics LLC ("we", "us"), Menlo Park, California.

What HG Brasil Finance (BYOK) is. HG Brasil Finance (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own HG Brasil Finance data: Read Brazilian market data from HG Brasil Finance: B3 prices, indices, currencies, Selic and CDI rates, dividends and history with your own key. You bring your own HG Brasil Finance HG Brasil API key; the assistant sends it to us with each request.

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

What we return. The answer HG Brasil Finance 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 HG Brasil Finance 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. HG Brasil Finance (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 HG Brasil Finance at any time to end all access.

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

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

HG Brasil Finance (BYOK) — Terms of Service

Effective 16 October 2026. These terms govern use of the HG Brasil Finance (BYOK) connector ("the Service") operated by Unify Dynamics LLC ("we", "us").

1. The Service. HG Brasil Finance (BYOK) provides: Read Brazilian market data from HG Brasil Finance: B3 prices, indices, currencies, Selic and CDI rates, dividends and history with your own 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 HG Brasil Finance credentials and only access data you are allowed to access. HG Brasil Finance's terms (https://console.hgbrasil.com/terms) apply to your use of HG Brasil Finance; 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 HG Brasil Finance. HG Brasil Finance 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 HG Brasil Finance returns, lightly trimmed; it may be incomplete, delayed or changed by HG Brasil Finance. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your HG Brasil Finance 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 HG Brasil Finance'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; HG Brasil Finance 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 HG Brasil Finance 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 HG Brasil Finance 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-hgbrasil-finance

HG Brasil Finance (BYOK) support

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

• MCP endpoint: https://byok-hgbrasil-finance.connectorbay.com/mcp
• REST API: https://byok-hgbrasil-finance.connectorbay.com/openapi.json
• Live status: https://byok-hgbrasil-finance.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. HG Brasil Finance (BYOK) never asks for them.