Helium terms of service for the API, MCP, and Slack app

Last updated: July 29, 2026 These Terms of Service (“Terms”) govern access to and use of Helium, a hosted fundraising research platform provided by Gravity GTM, Inc. (“Gravity GTM,” “we,” “us,” or “our”), a sub-product of gravitygtm.com. By creating an account, obtaining an API key, installing the Helium Slack app, connecting a Google account, or otherwise accessing Helium, you (“Customer,” “you”) agree to be bound by these Terms. If you are entering into these Terms on behalf of a company or other legal entity, you represent that you have authority to bind that entity.

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1. Acceptance of Terms

Access to Helium is conditioned on acceptance of these Terms. If you do not agree, do not create an account or use the service. Continued use of Helium after any account creation, credit purchase, or API call constitutes acceptance.

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2. Description of the Service

Helium is a hosted, multi-tenant service that provides:

• A REST API for fundraising research: investor/LP/family-office search and scoring, single-investor deep-dive enrichment, and competitor/company research.
• An MCP (Model Context Protocol) server exposing the same capabilities to compatible AI clients and agents.
• A Slack app that allows conversational access to the same research directly within a customer’s Slack workspace, including collecting your fundraising fit profile and importing your LinkedIn connections for warm-path matching.
• An optional Gmail/Calendar connection (Section 8) letting Helium send fundraising outreach on your behalf, detect replies, and check real calendar availability.

Helium is available at lite.gravitygtm.com, with documentation at docs.gravitygtm.com/helium, and shares its underlying account, credit, and billing infrastructure with our related product Horizon. We may modify, add to, or discontinue features of Helium at any time, provided that we will not materially degrade the core research functionality described above without reasonable notice.

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3. Accounts and API Keys

3.1 Issuance. Upon account creation, Helium issues one or more API keys tied to your account. Each key is shown to you one time, at the moment of issuance. We store keys only as a one-way cryptographic hash; we cannot retrieve or redisplay a plaintext key after issuance. 3.2 Rotation and revocation. You may request rotation (replacement) or revocation of any API key at any time by contacting us at help@gravitygtm.com, or through such self-service mechanism as we may make available in the future. 3.3 Customer security obligations. You are solely responsible for keeping your API keys, any Slack workspace connection, and your Gmail/Calendar connection confidential and secure. You must not share keys with unauthorized parties, embed them in client-side or publicly accessible code, or commit them to public repositories. You are responsible for all activity that occurs under your keys and connected accounts, whether or not authorized by you, except to the extent caused by our breach of these Terms. Notify us promptly at help@gravitygtm.com if you suspect a key or connection has been compromised.

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4. Subscription, Credits, and Billing

4.1 Subscription required. Unlike Horizon, access to Helium (the REST API, MCP server, and Slack app) requires an active monthly subscription. The subscription is $50.00 USD per month and grants 6,000 credits at the start of each billing period, at a rate of$0.01 USD per credit for each billed lookup. get_fundraising_profile, set_fundraising_profile, and import_network are free and never consume credits. If your subscription lapses or is canceled, access to Helium ends until it is reactivated. 4.2 Credit rollover. Subscription credits that go unused in a given billing period carry over into the next period, up to a maximum retained balance of 18,000 credits (three months’ worth of grants). Any credits beyond that cap at the time of renewal are forfeited; they are not refunded or converted to cash value. 4.3 Add-on credit packs. In addition to your monthly subscription grant, you may purchase additional, non-expiring credit packs at any time, subject to change with notice under Section 13. 4.4 Payments final; no cash refunds. All subscription charges and add-on credit purchases are final and non-refundable, except as required by applicable law. 4.5 Automatic credit-balance restoration. If a vendor call underlying a lookup fails or returns a clean “not found” result on qualifying endpoints, the credit amount reserved for that call is automatically returned to your Helium credit balance before you are charged. This is a balance-restoration mechanic operating within the credit system, not a cash refund. 4.6 Payment processing. All payment card data, including your subscription’s recurring payment method, is collected and processed directly by Stripe, our payment processor. We never receive or store raw card numbers. 4.7 Changes to pricing. We may change the subscription price, the monthly credit grant, the rollover cap, or add-on pack pricing from time to time; any such change will be announced and reflected in an update to these Terms before it takes effect under Section 13, and will not retroactively change how credits you’ve already been granted or purchased work.

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5. Acceptable Use

You must not, and must not permit any third party to: (a) resell, redistribute, or sublicense access to Helium, its API, or the underlying research data (including investor/LP/fund data, company data, or scoring output) to any third party as a standalone data product or service; (b) use Helium, or data obtained through it, to build, train, or operate a product that competes with Helium as a fundraising-research or data-broker service; (c) exceed or attempt to circumvent applicable rate limits, or engage in excessive, abusive, or automated use designed to extract data at scale beyond normal application usage; (d) use personal data obtained through Helium, or your connected Gmail account, to send unsolicited bulk email, spam, harassment, or unlawful surveillance, or otherwise in violation of applicable anti-spam (e.g., CAN-SPAM, CASL), data protection, or consumer protection law; (e) attempt to reverse-engineer, probe, or interfere with Helium’s infrastructure, or misrepresent the source of data or outreach sent through it. We reserve the right to suspend or terminate access, and to disconnect a Gmail/Calendar connection, for violation of this Section, in addition to any other remedies available under Section 10.

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6. Rate Limits

Helium shares Horizon’s rate-limit tiers, applied per API key. These limits may change in the future; any such change will be reflected in our documentation and, where material, communicated to affected customers in advance.

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7. Data Accuracy Disclaimer; Customer Compliance Responsibility

7.1 Research results (including but not limited to investor, LP, family-office, and company data, and scoring rationale) are sourced from third-party vendors and the public web. This data is provided “as-is” and “as-available,” without warranty of any kind as to accuracy, completeness, currentness, or fitness for a particular purpose. 7.2 You are solely responsible for your own compliance with all laws and regulations governing your use of data obtained through Helium and any outreach sent through your connected Gmail account, including without limitation applicable anti-spam laws (e.g., CAN-SPAM), data protection laws (e.g., GDPR, CCPA), and any sector-specific regulations relevant to your use case (including securities-law considerations applicable to fundraising communications, which we do not advise on). You are responsible for establishing your own lawful basis for processing any personal data you obtain and use through Helium. 7.3 Roles under data protection law. With respect to third-party personal data obtained through Helium (e.g., data about investors or LPs you’re researching), you act as the controller and Gravity GTM generally acts as a processor acting on your instructions. With respect to your own account, billing, fundraising profile, and connected-Gmail data, Gravity GTM acts as controller. Nothing in these Terms constitutes legal advice regarding your obligations as a controller, or regarding securities law applicable to your fundraise.

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8. Gmail and Calendar Connection

8.1 Authorization. If you choose to connect a Google account, you authorize Helium, via Google’s own OAuth consent screen, to access that account’s Gmail (send and read) and Calendar (read) data for the purposes described in our Privacy Policy — namely, sending fundraising outreach you’ve approved, detecting replies to pause a sequence, and checking real calendar availability. This authorization is between you, Google, and Gravity GTM; it does not transfer ownership of your Google account. 8.2 Your content, your responsibility. You are solely responsible for the content, recipients, and legal compliance of any outreach sent through your connected Gmail account, whether drafted by you or generated by Helium and approved by you before sending. Helium is designed to never fabricate a scheduling link or a credential belonging to someone other than you, and to require your approval before sending outreach by default — but you remain responsible for reviewing and approving what is actually sent under your name. 8.3 Revocation. You may revoke Helium’s access to your Google account at any time, either directly through Google’s own account permissions page (myaccount.google.com/permissions) — which takes effect immediately and independently of Helium — or by contacting us at help@gravitygtm.com to have the connection removed on our end. 8.4 No guarantee of delivery or outcome. Helium does not guarantee that outreach sent through your connected Gmail account will be delivered, read, or result in any particular response, meeting, or investment outcome.

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9. Intellectual Property

Gravity GTM and its licensors own all right, title, and interest in and to Helium, including its software, infrastructure, API, documentation, and branding. These Terms grant you a limited, non-exclusive, non-transferable, revocable right to access and use Helium for your internal business purposes, subject to Section 5. You retain all rights to any inputs you submit to Helium (e.g., your fundraising profile, uploaded network data, drafted or sent outreach). We claim no ownership over your inputs or your own business data.

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10. Termination

10.1 Either party may terminate this agreement at any time. We may suspend or terminate your access immediately if you violate Section 5 (Acceptable Use) or otherwise materially breach these Terms. 10.2 Upon termination for any reason, your right to access Helium ends immediately, any connected Gmail/Calendar authorization is revoked on our end, and your subscription (Section 4) is canceled effective at the end of the then-current billing period — you will not be charged for any subsequent period. We are not obligated to refund unused credits or the current period’s subscription charge upon termination, whether the termination is initiated by you or by us, except as required by applicable law.

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11. Disclaimer of Warranties; Limitation of Liability

11.1 Disclaimer. Except as expressly stated in these Terms, Helium is provided “as-is” and “as-available” without warranties of any kind, whether express, implied, or statutory, including implied warranties of merchantability, fitness for a particular purpose, non-infringement, and any warranty arising from course of dealing or usage of trade. 11.2 Limitation of liability. To the maximum extent permitted by law, in no event will Gravity GTM be liable for any indirect, incidental, special, consequential, exemplary, or punitive damages, or for any loss of profits, revenue, data, or goodwill, arising out of or related to these Terms or use of Helium, regardless of the theory of liability, even if advised of the possibility of such damages. Gravity GTM’s total aggregate liability arising out of or related to these Terms will not exceed the total fees paid by Customer to Gravity GTM in the twelve (12) months preceding the event giving rise to the claim. 11.3 Some jurisdictions do not allow certain limitations of liability; in such jurisdictions, the above limitations apply to the maximum extent permitted.

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12. Indemnification

You agree to indemnify, defend, and hold harmless Gravity GTM and its officers, directors, employees, and agents from any claims, damages, liabilities, costs, and expenses (including reasonable attorneys’ fees) arising out of or related to: (a) your use of Helium in violation of these Terms, including Section 5 (Acceptable Use) or Section 7 (compliance with applicable law); (b) any outreach sent through your connected Gmail account; (c) your violation of any third party’s rights, including data protection or privacy rights of individuals whose data you obtain through Helium; or (d) any content, data, or instructions you submit to Helium.

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13. Changes to These Terms

We may update these Terms from time to time. Material changes will be communicated by posting an updated version at this location, updating the “Last updated” date, and, where changes are significant, providing notice via email, through the Slack app, or by other reasonable means. Continued use of Helium after a change takes effect constitutes acceptance of the revised Terms.

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14. Governing Law

These Terms are governed by the laws of Delaware, without regard to conflict-of-laws principles. Any dispute arising out of or relating to these Terms will be subject to the exclusive jurisdiction of the courts located in Delaware, except as otherwise required by applicable mandatory law.

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15. Contact

For billing questions, credit purchases, invoicing, or any other inquiries regarding these Terms, contact help@gravitygtm.com. Registered address: 2995 55th Street, Unit 17033, Boulder, CO 80308