Short answer: for a solo consultant or a boutique agency of 2 to 10 people trying to find clients, the best AI agent is the one that runs without a dedicated team behind it: targeting, message writing and follow-ups on autopilot, you just swipe to approve.
Formula. starts at €97 a month, capped at 28 LinkedIn invitations a day (840 a month), with a measured reply rate of 30 to 60% depending on sector, versus 7 to 11% for classic manual outreach.
Platforms built for a ten-person sales floor do not fit this segment, even the well-known ones.
Search "best AI prospecting agent" and you land on comparisons that line up Clay, Artisan, 11x, sometimes five more names.
These tools are legitimate. But they compare products built for structured sales teams, with budgets running four or five figures a month.
A solo consultant or a three-person agency has none of that budget, that time, or that team to run the tool. The whole decision criterion changes.
Why a "generalist" agent misses this segment
Because an enterprise-built agent always assumes someone behind it: an admin configuring sequences, an ops person cleaning data, a manager supervising campaigns.
On a boutique agency, that person does not exist. It is you, between two client deliverables, who would need to run the tool.
Most enterprise "AI SDR" platforms get abandoned within a year on this segment, not because they are bad, but because they assume a team that is not there.
The real question is not which tool is the most powerful. It is which tool runs without eating your evenings.
What actually matters when you are solo or a small team
Four criteria decide it, in the order they rule out candidates for this exact segment.
- Zero dedicated headcount required. The agent has to qualify, write and follow up on its own. If you still write the messages, that is a tool, not an agent, and the price should be judged that way.
- Mobile, not just desktop. Between two client calls, you approve from your phone or you do not approve at all. A desktop dashboard that stays closed all week is worthless.
- The LinkedIn cap enforced by default. LinkedIn now counts more than 1 billion members and applies the same limit to everyone, roughly 28 invitations a day. A tool that pushes past that puts the account you also use for your personal brand at risk.
- Pricing that does not climb with a phantom seat. Many platforms bill per user, a model built for teams of ten, not for a solo founder or a two-person shop.
An agent that checks all four boxes pays for itself fast. One that checks two or three ends up in the drawer of subscriptions paid for and never opened.
Mike's case: a 3-person DevOps consultancy in Austin
Mike runs a small DevOps consultancy out of Austin, him and two contractors.
Before the agent, prospecting lived in his evenings: finding prospects, writing messages, following up, and usually giving up after two touches because there was no time left.
His reply rate hovered around 9%, in the low range of classic manual outreach.
He put Formula. on an offer he had already validated for six months. The agent qualifies prospects, sends LinkedIn invitations and follows up by email in parallel on the same targets.
Three months later, his reply rate sits above 38%, and he closed two new retainer clients without hiring anyone.
His daily prospecting time now: a few minutes of swiping with his coffee, not entire evenings lost.
What this looks like in numbers, at this scale
| Metric | Value at this scale |
|---|---|
| LinkedIn invitations | 28/day, the cap every serious tool respects |
| Prospects worked | 840/month across two coordinated channels |
| Reply rate | 30-60% depending on sector, versus 7-11% manual |
| Qualified meetings | 5-10 per week depending on sector and offer |
These numbers do not come from a sales team average. They come from accounts run by one person, usually on the side of their main delivery work.
"We build Formula. for exactly this segment, not despite it. A boutique agency does not need a weaker agent than a large company. It needs an agent that does not ask it to hire in order to run."
Gabriel Burguière, co-founder, Formula.
What about a larger, more structured consulting firm?
If your firm already runs a dozen consultants with a dedicated business development function, the question changes.
We covered that broader picture, with the options that make sense at that size, in our article on AI agents for consultants and consulting firms.
This article answers a narrower question: the best pick when you are solo, two or three people, with no dedicated function, and your prospecting time adds up to a few minutes a day.
How to choose without buying something oversized
Three questions to ask before signing, whatever tool you are looking at.
Who writes the messages? If the answer is "you, with merge fields", that is not an agent, it is an improved mail merge.
Ask next: can I run this from my phone? If the answer assumes an open dashboard all day, it will not fit your actual schedule.
Last one: does the price climb if I bring on a partner? If yes, calculate the cost for three people before signing, not just the single-seat sticker price.
The best agent for this segment is not the one with the most features. It is the one you are still using in six months, because it never asked you to hire someone to run it.
For the solo-specific math, see whether an AI prospecting agent is worth it for a solo consultant.
Frequently asked questions
What is the best AI agent for a solo consultant looking for clients?
An agent that qualifies, writes and follows up on its own, with no dedicated role required to run it. Formula. fits that at €97 a month, with swipe approval from your phone.
Does a boutique agency need a different agent than a large agency?
Yes, on price and on autonomy. A large agency can absorb a per-seat price and supervision time.
A boutique agency of 2 to 10 people needs a price that does not climb with every partner, and an agent that requires no daily supervision.
How much does an agent built for this segment cost?
Around €97 a month for a full autonomous agent, versus several hundred to several thousand dollars a month for platforms built for structured sales teams.
Running a boutique agency or prospecting solo? See what the agent does on your own offer.
Start the 3-day trialFirst replies usually land within the trial. Judge on evidence, not promises.