HubSpot Marketing Forms (BYOK)

HubSpot Marketing Forms (BYOK) — connector documentation

• MCP endpoint: https://byok-hubspot-marketing-forms.connectorbay.com/mcp
• REST API: POST https://byok-hubspot-marketing-forms.connectorbay.com/v1/tools/{tool_name}, described by the OpenAPI 3.1 spec at https://byok-hubspot-marketing-forms.connectorbay.com/openapi.json
• Transport: Streamable HTTP, stateless, MCP specification 2025-06-18 or later
• Authentication: your own HubSpot Marketing Forms HubSpot private app access token (scopes: forms, crm.objects.marketing_events.read), sent in the X-Upstream-Key header of every request (never stored, logged or cached)
• Health: https://byok-hubspot-marketing-forms.connectorbay.com/health · Tool schemas: https://byok-hubspot-marketing-forms.connectorbay.com/tools.json
• Publisher: Unify Dynamics LLC · connectorbay.com/byok-hubspot-marketing-forms · agent@connectorbay.com

What HubSpot Marketing Forms (BYOK) is for

HubSpot Marketing Forms (BYOK) lets an AI assistant read your own HubSpot Marketing Forms data through the HubSpot Marketing Forms API with a key you supply (HubSpot private app access token (scopes: forms, crm.objects.marketing_events.read)). Read-only: 5 tools (list_forms, get_form, list_marketing_events, get_marketing_event, get_marketing_event_participation). 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.hubapi.com. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by HubSpot Marketing Forms. HubSpot Marketing Forms 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 forms do we have in HubSpot?"
• "Which fields does the Newsletter signup form ask for?"
• "Which marketing events are coming up in HubSpot?"
• "How many people registered for marketing event 3001?"
• "What was the attendance of marketing event 3001?"

What it does

• list_forms: List HubSpot forms with name, type, creation and update dates and archived flag. Form submissions are not part of this tool.
• get_form: Get one form definition: name, type, dates and its field groups (field names, labels, types). No submitted data.
• list_marketing_events: List marketing events (webinars, conferences and similar) with name, type, status, dates, organizer and registration totals.
• get_marketing_event: Get one marketing event by HubSpot object id: name, type, status, dates, organizer and registration, attendance, cancellation and no-show totals.
• get_marketing_event_participation: Get attendance counters of a marketing event: registered, attended, cancelled and no-shows.

BYOK key

You bring your own HubSpot Marketing Forms HubSpot private app access token (scopes: forms, crm.objects.marketing_events.read) (https://developers.hubspot.com/docs/apps/legacy-apps/private-apps/overview). 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.hubapi.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://developers.hubspot.com/docs/api-reference/overview (the API this connector calls, with a BYOK key)

Live from the HubSpot Marketing Forms API (api.hubapi.com) with a BYOK key; documentation: https://developers.hubspot.com/docs/api-reference/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 HubSpot Marketing Forms. HubSpot Marketing Forms 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 HubSpot Marketing Forms account.

Built for: Worldwide. Languages: English.

HubSpot Marketing Forms (BYOK) — Privacy Policy

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

What HubSpot Marketing Forms (BYOK) is. HubSpot Marketing Forms (BYOK) is a connector (an MCP server and REST API) that an AI assistant calls on your behalf to read your own HubSpot Marketing Forms data: Read your HubSpot forms (definitions only, no submissions) and marketing events with registration and attendance totals using your own private app access token. You bring your own HubSpot Marketing Forms HubSpot private app access token (scopes: forms, crm.objects.marketing_events.read); the assistant sends it to us with each request.

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

What we return. The answer HubSpot Marketing Forms 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 HubSpot Marketing Forms 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. HubSpot Marketing Forms (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 HubSpot Marketing Forms at any time to end all access.

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

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

HubSpot Marketing Forms (BYOK) — Terms of Service

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

1. The Service. HubSpot Marketing Forms (BYOK) provides: Read your HubSpot forms (definitions only, no submissions) and marketing events with registration and attendance totals using your own private app 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 HubSpot Marketing Forms credentials and only access data you are allowed to access. HubSpot Marketing Forms's terms apply to your use of HubSpot Marketing Forms; 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 HubSpot Marketing Forms. HubSpot Marketing Forms 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 HubSpot Marketing Forms returns, lightly trimmed; it may be incomplete, delayed or changed by HubSpot Marketing Forms. Check important facts at the source.
5. Read-only. The Service does not create, change, send or delete anything in your HubSpot Marketing Forms 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 HubSpot Marketing Forms'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; HubSpot Marketing Forms 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 HubSpot Marketing Forms 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 HubSpot Marketing Forms 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-hubspot-marketing-forms

HubSpot Marketing Forms (BYOK) support

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

• MCP endpoint: https://byok-hubspot-marketing-forms.connectorbay.com/mcp
• REST API: https://byok-hubspot-marketing-forms.connectorbay.com/openapi.json
• Live status: https://byok-hubspot-marketing-forms.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. HubSpot Marketing Forms (BYOK) never asks for them.