Terms

Terms of service

These terms are the contract between you and PillarStack LLC for the RelayLink service. They are written to be read, and they say what the service does, what we ask of you, what you pay, and where each of us stands if something goes wrong. Last updated 19 September 2026.

The agreement

Who the parties are. “We”, “us” and “our” mean PillarStack LLC, a Virginia limited liability company with its principal place of business in Richmond, Virginia, United States. “RelayLink” and “the service” mean the RelayLink service we operate: the website at relaylink.ai, the account portal, the MCP endpoint, the authorization server, and the emails and links the service sends. “You” means the person or organisation using the service. If you use it for an organisation, you confirm you have the authority to bind it, and “you” includes it.
What accepting means. You accept these terms by creating an account, signing in, connecting an assistant, subscribing, or otherwise using the service. If you do not agree, do not use it. A person who only receives a briefing and never signs in is not bound by these terms; the section for recipients says what applies to them.
What else forms part of it. The privacy policy, the acceptable use policy, the cookie policy and the copyright policy are part of these terms. Where you use the service for an organisation, the data processing addendum forms part of them too, and governs personal data to the extent it says.
How long it lasts. These terms apply from the first time you use the service until your account is closed by you or by us under the section on ending things, and the parts that say they survive continue after that.
Changes. We may revise these terms. For a change that matters — to price, to your rights, to what we may do with your content — we will email account holders at least thirty days before it takes effect, and continuing to use the service after that date is acceptance. A change required by law or made to fix a security problem may take effect sooner. The date at the top says when this page took effect, and the version at this address is the one in force.

What RelayLink is

RelayLink carries briefings between people through their AI assistants. You compose a briefing with your assistant, you approve it, RelayLink delivers it to the person you address, and their reply comes back to you on a thread the two of you own. It works inside the assistant you already use and, for anyone without one, as an email with a link.

Your assistant is not part of RelayLink. Claude, ChatGPT and the rest are provided by their own companies under their own terms, and what an assistant does with what it reads through RelayLink is between you and that provider. RelayLink sends an assistant only what its owner has asked it to fetch, and delivers only what its owner has approved.

The service is in early release. Until we announce general availability on this site, features may change, be added or be withdrawn without the notice period above, and no service level is promised. We will not remove your ability to export what is yours, and a briefing already delivered stays delivered.

Your account

Your email address is your identity. You sign in with a code we email you. There is no password to set, and the address must be one you control. If you lose control of the address, tell us at once; until you do, we may treat anyone who can read it as you.
One person per account. A briefing carries a sender's name, and the labels on it say which words that person wrote. An account shared between people makes both claims false.
You are responsible for what your account sends — every briefing you approve, whichever assistant drafted it, and everything done with an API key you issued or an assistant you connected. Keep keys private; if one leaks, revoke it on your account page and issue another. You can disconnect an assistant at any time from your connections page.
You must be at least 16 to hold an account, and you must not be barred from using the service under the law where you are or under United States sanctions or export laws.
Accurate information. The name on your account must be your own, or the name your organisation authorises you to use.

What you may and may not do

RelayLink exists so that a briefing from you is worth the reader's time. The rules follow from that, and most of them are enforced by the product rather than by this page. The full list is the acceptable use policy; these are the ones that matter most.

Write to people who would want to hear from you. Writing to someone new is capped per day, a first message to somebody who is not yet your contact has to carry a real question and the context for it, and every email we deliver for you carries a link the reader can use to stop you writing to them again, without telling you at the time. Bulk, unsolicited or automated sending is not what this is for, and we will close accounts that use it that way.
Honour a block. When somebody unsubscribes, declines your contact request, or blocks you, that is the end of the conversation from your side. Do not route around it with another address or another account.
Do not impersonate. The name on your account is yours. Do not present yourself as someone else, or present an assistant's words as your own where the label says otherwise.
Nothing unlawful, and nothing that harms the reader: no harassment, no threats, no fraud, no content you have no right to send, no attempts to extract data from or inject instructions into another person's assistant.
Do not attack the service. No probing, scraping, load testing or evasion of the limits, and no reverse engineering beyond what the law where you are permits regardless of contract. If you find a security problem, report it as the security page asks; we will not pursue good-faith research that follows it.

Assistants, keys and the API

The connection is the product surface. RelayLink is a remote MCP server, and connecting an assistant, a framework or your own software to it is use of the service under these terms. The reference page describes the interface; we may change it, and where a change breaks something that worked we will say so on that page ahead of time when we can.
API keys are yours to keep safe. Each key is a credential for your whole account. Do not share one, embed one in software you distribute, or issue one to a person who is not you. You can name, revoke and replace keys on your account page, and a revoked key stops working at once.
Limits are abuse bounds, not allowances. The service limits requests per credential, first contacts per day and contact requests per day. They are set well above what a person working normally reaches; hitting one is a signal, not a quota to be worked around.
No manipulation of the interface. Do not send content designed to alter how RelayLink, or the assistant on the other side, behaves: instructions dressed as briefings, prompt injection, or tool descriptions of your own presented as ours.

Your content, and ours

What you put in is yours. You keep every right you have to your briefings and replies, your notebook, your shared memory and the mail you forward to your account. You grant us a non-exclusive, worldwide, royalty-free licence to store, copy, transmit and display it, only as needed to run the service: to deliver what you send to the people you address, and to show it to you, your recipients, the members of a project you share with, and the assistants each of you has connected. The licence lasts as long as we hold the content and ends when it is deleted, except that a briefing already delivered stays with its recipient. Nothing here lets us use your content to train a model, and we do not.
You are responsible for it. You confirm you have the right to send what you send, that it does not infringe anyone's rights, and that it complies with the acceptable use policy. We do not review content before delivery.
The recipient keeps their copy. A briefing you send becomes part of the recipient's correspondence as much as yours. Closing your account removes your identity from it and leaves the record with them, as the privacy policy describes.
Provenance labels are the product. RelayLink records which words a person wrote, which an assistant drafted and a person approved, and which are inferred, and shows those labels to the reader. You agree not to try to defeat them.
Content we receive from others — a stranger's reply, an inbound email — is treated as text to display, never as instructions to any system. That is a promise about our software; it is not a review of what people send you, and we do not read your correspondence except as the privacy policy allows.
Copyright complaints are handled under the copyright policy, and we close the accounts of repeat infringers.
The service is ours. The software, the site, the documentation, the guides, the design and the RelayLink name and mark belong to us or to our licensors. We grant you a limited, revocable, non-exclusive, non-transferable right to use the service under these terms, and nothing else: do not copy, modify, resell, frame or build a competing service from it, and do not use our name or mark without our written agreement except to say, accurately, that you use RelayLink.
Feedback. If you send us a suggestion about the service, we may use it without owing you anything, and you confirm it is yours to give. This does not touch your briefings, which are never feedback.

If you received a briefing and have no account

You can read and reply without registering, and you can stop a sender for good with the unsubscribe link in any email. Doing so sends them no notice. Signing in with the address the briefing was sent to turns the record into an account under these terms; until then, only the privacy policy applies to you, and what you post in reply is governed by the acceptable use policy in the same way as anything a sender writes.

Third-party services

The service depends on companies we do not control: the provider of the assistant you connect, the email service that carries notifications and replies, and the cloud that hosts us. The subprocessor list names the ones that touch your data on our behalf. Your assistant's provider is not one of them: you chose it, it acts for you, and its terms govern what it does with what it reads. We are not responsible for a third-party service's acts or outages, though we choose them with care and will change them when they let us down. Links from this site to other sites are provided for convenience; those sites are not ours.

Plans and payment

Receiving is free, for everyone, always. Reading and replying never costs anything.
There are two plans, Free and Pro. Every account starts on Free. They differ in how much an account keeps — memories, notebook items, projects and the people on them, tracked items, forwarding addresses — and in how many forwarded messages and new conversations it takes each month. What each plan allows is on the pricing section, and what your own account has used is on its usage page.
Reaching a limit refuses the new thing and changes nothing else. We do not delete, shorten or move anything of yours to make room. Moving to a smaller plan deletes nothing either: what no longer fits is paused — it can still be read, corrected and exported — until the plan has room for it again.
Whether Pro can be bought depends on where you are using RelayLink. Where it can, the buttons are on your plan page and a payment provider takes the payment and holds your card details; we do not. Where it cannot, nothing is charged, no payment details are held, and Pro is arranged with us. Either way, nothing is ever charged unless you start a checkout yourself, and the price is shown to you there before you confirm.
Pro will be a subscription. Its price is the one on the pricing section at the time you subscribe, in US dollars. Free costs nothing and needs no payment method.
Automatic renewal. A subscription renews automatically at the end of each period — monthly for a monthly plan, yearly for an annual plan — at the price then in force for your plan, until you cancel. We will email you at least thirty days before an annual renewal, and before any renewal whose price has changed, so that you can cancel first.
Cancelling. You can cancel from your account page wherever Pro is sold there, and you can always cancel by emailing us at the address below; we will confirm it. Cancelling stops the next charge; the plan runs to the end of the period you have paid for and does not renew.
Price changes. We will tell you at least thirty days before any price you pay changes, and a change never applies to a period you have already paid for. If you do not want the new price, cancel before it takes effect.
Failed payments. If a charge fails we will tell you and try again. If it still fails after seven days we may suspend sending until it is paid; receiving, reading and exporting continue.
Refunds. We refund a charge made in error, and we refund in full if we close the service or your account through no fault of yours. Otherwise a period that has begun is not refunded, except where the law where you live says it must be. If you are a consumer in the European Union or the United Kingdom, you have the right to withdraw from a new subscription within fourteen days; by asking us to start the service at once you agree that the withdrawal right ends once it has been fully performed.
Taxes are added where we are required to collect them. Prices exclude them unless the pricing section says otherwise.
Payment processing. When we take payment we will use a payment processor, and it will hold your card details; we will not. The processor will be named on the subprocessor list before the first charge is ever taken.

Ending things

You can close your account at any time from your account page. It asks you to type your address, because it cannot be undone. What is deleted and what is kept is set out in the privacy policy.
We can suspend or close an account that breaks these terms or the acceptable use policy, that has not been used for two years, or that we are required by law to close. We will say why, and we will warn first unless the conduct is harming someone or the service, or the law forbids the warning. A suspended account cannot sign in, so we will send an export of what is yours to the account's address when you ask.
We can withdraw the service with at least sixty days' notice, and a refund of any period you paid for beyond the closing date. Your export is available throughout.
What survives. The sections on your content and ours, liability, indemnity, export controls, disputes and the general terms continue to apply after the agreement ends, as does anything else that by its nature should.

Availability, support and changes

We are a small team and we do not promise the service will never be down. When it is, a briefing already sent stays sent, and an email reply that arrives while we are unavailable is retried by our email provider for hours rather than dropped. We may change the service, and we will not remove your ability to export what is yours. We may need to suspend the service for maintenance, to respond to a security problem, or because of something outside our control; where we can, we will say so in advance. Support is the form at /support, which reaches a person and sends you a reference, or the email address below if the site itself is the problem; we answer as quickly as we can, and no response time is promised.

What we promise, and what we do not

RelayLink is provided “as is” and “as available”. We work to keep it correct, secure and available, and the security page says how; beyond that we make no warranty, express or implied, including of merchantability, fitness for a particular purpose, non-infringement, accuracy or uninterrupted operation. We are not responsible for what people write to each other, for what an assistant does on its provider's side, for a decision you make on the strength of a briefing, or for the loss of content you have not exported.

To the extent the law allows, our total liability to you for everything arising from or connected with the service, whether in contract, tort, under statute or otherwise, is limited to the amount you paid us in the twelve months before the event giving rise to the claim, or one hundred US dollars if you paid nothing. Neither of us is liable to the other for indirect, incidental, special, consequential or punitive loss, or for lost profits, revenue, data or goodwill, even if told it was possible. Nothing here limits liability for fraud, for death or personal injury caused by negligence, for a party's wilful misconduct, or for anything else that cannot lawfully be limited, and nothing here takes away rights you have as a consumer where you live. Some jurisdictions do not allow some of these limits, so some may not apply to you.

If a third party brings a claim against us because of content you sent, because of your use of the service in breach of these terms, or because of something done with your account, you will defend us against it and cover the reasonable cost of dealing with it, including legal fees. We will tell you about the claim promptly and let you run the defence, provided you do not settle it in a way that binds us without our written agreement.

Export controls and sanctions

The service is provided from the United States. You confirm that you are not on a United States government list of restricted parties and are not in a country subject to a comprehensive United States embargo, and you agree not to use the service in a way that would breach United States export or sanctions law, or the equivalent law where you are.

Law and disputes

Write to us first. Most things are resolved in an email. Before either of us starts a formal claim, we agree to describe the dispute to the other in writing and to try for thirty days to resolve it.
Governing law. These terms are governed by the laws of the Commonwealth of Virginia and the federal law of the United States, without regard to conflict-of-law rules. The United Nations Convention on Contracts for the International Sale of Goods does not apply.
Where a claim goes. Any dispute that is not resolved goes to the state or federal courts sitting in Richmond, Virginia, and each of us submits to their jurisdiction — unless the law where you live gives you the right to bring a consumer claim in a court closer to home, in which case you keep that right. Either of us may bring a qualifying claim in a small-claims court instead.
Time limit. To the extent the law allows, a claim arising from the service must be started within one year of the event it is about.

General terms

The whole agreement. These terms, with the documents they incorporate, are the entire agreement between us about the service and replace anything earlier. A statement on the marketing pages describes the service; it is a promise only where these terms make it one.
Assignment. You may not transfer your account or these terms to anyone else. We may transfer them to a successor to the service, and will tell you if we do; the privacy policy keeps applying to your data on the same terms.
Events outside our control. Neither of us is responsible for a failure caused by something outside its reasonable control, except for the obligation to pay.
Severability. If a court finds part of these terms unenforceable, that part is read as narrowly as needed and the rest stands.
Waiver. Not enforcing a term is not giving it up.
Notices. We give notice by email to your account address, or on the service; you give notice at the address below. Email counts as writing, and you agree to receive contracts, notices and disclosures electronically.
No third-party beneficiaries. These terms give rights only to you and to us, except that a recipient may rely on the section written for them.
Language. These terms are written in English, and the English text governs any translation.
Reading these terms. Headings are for finding your way; “including” means “including without limitation”; and where the marketing pages and these terms disagree, these terms govern.

Contact

hello@relaylink.ai — the only channel we take these on. The same address answers anything about your data under the privacy policy, and every policy that applies to the service is listed at relaylink.ai/legal.