Bring a real brief. We compile it while you watch.
Three ways in, and none of them is a form.
The one thing worth booking is a 45-minute working session. You bring an audience you actually want to reach and a budget you would actually spend, and it is compiled live into the native targeting each of the seven channels accepts, with the fidelity score, the lawful-basis manifest and the costed plan on screen while you watch. It is not a sales demo and there is no deck: the software is driven in front of you, it runs in a deterministic sandbox that needs no credentials and no card, and if the honest answer is that two of the seven channels deserve your money and five do not, that is what the session tells you. Either way you leave with your own audience compiled seven ways, the scores and the costed plan that came with it, and the sandbox that produced them.
the ask
45 minutes
what the session costs
Nothing
routes in
3
phone number
None
what it is notA sales demo
Book a working session
45 minutes. Bring a real brief and we compile it live.
A form is a way of collecting a lead without answering anybody. These are addresses instead: one books forty-five minutes of the product being driven against your own brief, one reaches the inbox, and one is where the engineering lives. The first two reach the same person.
01 · the one to take
Book a working session
45 minutes. Bring a real brief and we compile it live.
The session is the product being driven rather than described. You give an audience in plain English and a budget, and the persona compiler, the seven channel compilers, the plan generator and the fee waterfall all run in front of you. Most of the useful time goes on the two or three fidelity scores that come back lower than you expected, because that is the conversation that decides whether this is worth buying. It is run by the person who built it, not by a salesperson reading from a script.
What it is not
It is not a demo of a finished product and it is not a pitch. Nothing is bought on the call, and the compiled plan you see is deterministic sandbox output rather than a media forecast.
Best for a question with a specific answer: whether a channel can carry a targeting idea, what a fidelity grade means for your audience, what a procurement review can have today, or whether your budget is above the line where we make sense at all. A short question gets a short answer rather than a meeting invitation.
What it is not
We have no support SLA, no escalation path and no status page, so this is an inbox rather than a service desk. Say what you need and it gets answered; nobody is on call for it.
Useful if you are the technical reviewer rather than the person holding the budget. The MCP server, the persona compilers, the adapter provenance ledger that grades every rail, and the fail-closed execution hooks are all in our repository, and the questions worth asking about an agent that can touch a budget are questions about that code.
What it is not
Our repository is private today, so this is the organisation rather than a clone-it-yourself link. Ask on the session or by email and the specific file behind any claim on this site can be walked through.
If you already know which audience you want compiled, the session is the shortest route to an answer: forty-five minutes, and you leave with the plan whether or not anything comes of it.
The reason most people do not book a call with a supplier they have not heard of is that they cannot picture it, so they assume the worst version. This is the actual shape of it. The software is driven in front of you the whole way through; there is no deck at any point.
0–5 min01 of 4
Your brief, in your words
One sentence describing who you want to reach, what you would spend a month, over how long, and what the campaign is for. No qualification questions and no discovery framework. If you would rather send it in advance so the session starts at the interesting part, email it.
5–15 min02 of 4
The persona, extracted and edited
The brief becomes a canonical persona: semantics, geography, firmographics, demographics, intent and exclusions, each as an editable chip with its own confidence. Nothing is inferred silently — an age bound you did not state stays absent rather than defaulting — so this is where you correct what the extractor got wrong.
15–30 min03 of 4
Seven compiled plans, and the scores
The persona compiles into what each of the seven channels actually accepts, with a fidelity score and a written rationale on each. This is the part of the session that is worth the time: the published bands run from 85 down to 40, and the low ones are where you find out that a channel somebody has sold you cannot express your audience at all.
30–45 min04 of 4
What it would cost, and whether to do it
The costed plan, the channel floors, the data CPM uplifts and the fee waterfall, and then the honest read: which two or three channels your budget can fund with enough weight to prove anything, and whether the answer is that this is the wrong product for you today.
What it is not
It is not a sales demo, not a pitch and not a qualification call. There is no deck, nothing is sold on the call, and there is no follow-up sequence to be enrolled in. What is being recruited is a small number of paid design partners, so the session is as much us working out whether we can serve you as the other way round — and the answer is sometimes no, which is cheaper for both sides established in forty-five minutes than in month three.
That is the whole agenda. If it is the shape of conversation you wanted, the calendar is at the foot of this page.
You have just read the agenda. The part that makes it worth forty-five minutes is that it runs against your audience and your budget rather than a demo account, and the fidelity scores that come back low are the ones worth the time.
45 minutes. Bring a real brief and we compile it live. · deterministic sandbox · no credentials and no card
preparation
What to bring, and what you leave with
Four things make the session useful and none of them takes preparation. Send them in advance if you would rather the forty-five minutes started at the compiled output instead of at the typing.
Bring
01An audience you actually want to reach, described the way you would describe it to a colleague rather than as a targeting spec.
02A monthly budget you would genuinely commit, and the flight length you have in mind. A number you made up produces a plan about a campaign that does not exist.
03The channels somebody has already sold you on, if any. Those are the ones worth checking a fidelity score against.
04Your current measurement setup, if you have one, and whether your conversions carry a geography. It decides whether a causal claim is reachable at your spend at all.
Leave with
01The compiled plan from your own brief: seven targeting specifications, seven fidelity scores, seven lawful-basis manifests, and a costed allocation against real channel floors.
02Access to the deterministic sandbox, which needs no credentials and no card, so you can drive the same loop yourself afterwards.
03A straight answer on whether your budget clears the line where we make sense, including when we do not.
The sandbox is complete and deterministic. Every impression, reach figure, CPM and delivery row it returns is sandbox output, labelled as such.
before you ask
Four things we do not have
Every one of these is something you would reasonably assume exists at a company with a website this size. Establishing them here costs the visitor who needed one of them, which is a visitor we cannot serve today anyway.
A phone number
We do not have one. Tenhaw LTD, the operating company, publishes its own contact details at https://tenhaw.com, and sending a question about a fidelity score there would reach a consultancy rather than anybody who can answer it. Email or the session, both of which reach the same person.
A support SLA, an escalation path or a status page
None of the three is built, and our own launch checklist lists them as outstanding rather than omitting them. A design partner gets a direct line to the person who wrote the code, which is a different arrangement rather than a better-branded version of the same one.
An account team or a named launch specialist
AdBuyMCP is software rather than a media agency. Nobody here writes your strategy deck, and there is no account management layer to be assigned to. What replaces it is that the fee is published, no undisclosed rebate is taken, and the fee sits on the statement beside the media it was charged on.
A self-serve signup that ends in live media
No buying rail has cleared the launch standard, so real spend runs inside a design-partner engagement rather than behind a signup form. The sandbox, which is the whole product minus real money, needs no conversation at all.
If none of those four is disqualifying, the next step is forty-five minutes. If one of them is, that is better established now than in month three.
What a procurement or security reviewer can have today
A team that cannot resolve a trading name to a registered entity stops there, and a product brand with no company behind it is the exact shape of supplier they are trained to reject. The register entry leads, and it is the only line here that nobody at this end can edit.
Legal entity
Tenhaw LTD, company 12735685, incorporated 10 July 2020, registered in England and Wales. AdBuyMCP is a product of that company rather than a separate entity. Check the register
VAT
GB388977014
Registered address
London, England, United Kingdom.
Assurance held
None. No ISO 27001, no SOC 2, no Cyber Essentials, no penetration test, no ICO registration and no completed DPIA. The security page lists all of them as not held rather than as in progress, because none of them is in progress. Read it in full
Legal documents
The privacy policy, terms, data processing agreement and subprocessor list exist as templates and are marked for review with counsel before they are relied on. Ask and you get the current position rather than a document with a review note stripped off it.
Insurance
Professional indemnity and cyber cover are held by the operating company rather than by a product entity. Certificates are available during a design-partner conversation. Cover levels are not published here because they are contract-specific.
Nothing on this list is in progress. A supplier questionnaire sent to the inbox gets the current position rather than a roadmap, including on the questions where the current position is that the item does not exist.
Forty-five minutes. One real brief.
You describe an audience you actually want to reach, and it runs through the compilers live: seven targeting specifications, seven fidelity scores, seven lawful-basis manifests, and a costed plan against real channel floors. If two of the seven are worth your money and five are not, that is what the session tells you.
It is a working session, not a demo and not a signup. You leave with your own audience compiled seven ways, and with the sandbox that produced it, which needs no credentials and no card. If the honest answer is that this is the wrong product for your budget, you leave with that too.
45 minutes. Bring a real brief and we compile it live. · cal.com/adbuymcp/working-session
Questions about getting in touch
Including the three nobody usually answers on a contact page: what the phone number is, how fast a reply comes, and whether your budget is too small for the conversation to be worth having.
Is the working session a sales demo?
No. There is no deck and nothing is sold on the call. You give a real audience and a real budget, and the software compiles them in front of you: seven targeting specifications, seven fidelity scores, a lawful-basis manifest each and a costed plan against real channel floors. The most useful part is usually the channels that score badly for your audience, because that is the part no vendor volunteers. It is run by the person who built it.
Do I have to book a call to try it?
No. The whole loop — brief, persona, seven compiled plans, creative generation and pre-check, approval, launch, delivery, measurement, journeys and optimisation — runs in a deterministic sandbox that needs no credentials and no card, and returns realistic repeatable data rather than a scripted demo. What needs a conversation is real money, because no buying rail has cleared the launch standard yet and live spend runs inside a design-partner engagement.
What is your phone number?
We do not have one, and inventing one for a contact page would be the wrong kind of tidy. Tenhaw LTD, the operating company, publishes its own contact details at tenhaw.com, but that route reaches a consultancy rather than anybody who can answer a question about a compiled targeting specification. Email reaches the person who built it, and the working session is the same person for forty-five minutes.
How quickly will you reply?
There is no service level agreement to quote and it would be dishonest to imply one: we have no support SLA, no on-call rota and no status page, and our own launch checklist says so. What can be said is who reads the inbox, which is the person who wrote the code, and that a specific question gets a specific answer rather than a meeting invitation.
What should I bring to the session?
An audience described the way you would describe it to a colleague, a monthly budget you would genuinely commit, and the flight length you have in mind. If you already know which channels somebody has sold you on, bring those too — they are the ones worth checking a fidelity score against. Sending the brief in advance means the session starts at the compiled output rather than at the typing.
Is my budget too small to be worth a conversation?
Possibly, and it is better to know now. The published band starts at £2,000 a month, but the honest floor is around £10,000: below that a 10% fee is a few hundred pounds against the buyer who needs the most support, and a multi-channel plan cannot carry enough weight on any single line to pace or to prove anything. If your total monthly media is under that, buy search and social directly and come back when there is a second channel worth funding. Booking a session to be told that is still a use of forty-five minutes, and it is the answer you will get.
Can I speak to one of your customers?
No, because there are none. There are no case studies, no named references and no published outcome study, and the design-partner cohort is being recruited now. A reference invented to fill that gap would be worth less than the admission. What can be checked instead is the sandbox, the supply matrix that grades every rail on our own evidence ledger, the fee waterfall and the methodology.
We are a procurement or security reviewer. What can we have?
The register entry — Tenhaw LTD, company 12735685 — the security page's full list of what is not held, the subprocessor position as it actually stands rather than as the template describes it, and the supply matrix. What does not exist is a certification, a penetration test report or a counsel-reviewed contract set, and every one of those is listed as absent at https://adbuymcp.com/security rather than being left for you to discover. Ask for the rest by email and you get the current position.