A complete GTM stack for $60 a month.
Five tools. Chosen so an agent can actually operate them, with free tiers generous enough that you won't hit a wall this year — and no migration waiting for you in year two. It's the stack we run, written down.
Every tool here is one we run ourselves. No affiliate links, no sponsored placements, nothing on this page is for sale — if a better option appears, this page changes.
This is a reference, not an offer.
There's no package here to buy. We don't resell any of these tools, we take no affiliate revenue, and none of it is bundled into anything we sell. It's the stack we actually run, published because we were asked often enough that writing it down was easier than repeating it.
It's also just the early-stage one. The right answer at Series A looks different, and at twenty-plus people different again — there's a section further down on what changes and why. If you're starting out, start here.
Copy it, ignore it, or argue with it. All three are fine — and if you think we've got one of these wrong, we'd like to hear it.
Five tools, and what each one is doing here.
Every choice below had to clear the same four tests. Those are underneath the table.
| Function | Tool | Why it's here | Cost / mo |
|---|---|---|---|
| CRMContacts, deals, accounts | AttioFree plan | API and webhook access on the free plan — rare at this tier, and the whole game if you want an agent operating your CRM rather than a person. Free covers three seats and 50,000 records, and the flexible data model bends to your business instead of forcing a re-platform when you outgrow the template. | Freeto 3 users |
| CDP, warehouse & analyticsProduct and behavioral data | PostHogThree tools in one | Product analytics, a customer data platform and a data warehouse on one platform — three line items collapsed into one integration and one schema. 1M events and 1M warehouse rows free every month, which is well past where most seed companies actually are. | Freeto 1M events |
| Outbound sequencingEmail and LinkedIn | SalesforgePro plan | Multichannel out of one tool — email and LinkedIn in the same sequence — with genuinely good deliverability and unlimited warm-up included rather than sold separately. The unified inbox is the part that matters day to day: every reply in one place instead of five mailboxes. | $405k emails/mo |
| AI agentThe thing that runs it | ClaudePro | The operator for everything above. This is why the API criterion matters so much — with the right tool layer underneath, one agent covers work that would otherwise be a hire. It's the cheapest leverage on this list by a wide margin. | $20per seat |
| Team messagingWhere alerts land | SlackFree or Pro | Not a GTM tool exactly, but it's where signals and workflow notifications need to arrive to be acted on. Free works until you need message history, and everything integrates with it. | $0–9per user |
| All in | Full GTM motion — CRM, product data, multichannel outbound, an agent to run it | $60–69 | |
Prices as of July 2026, in USD, at the tier a two-to-three person team would actually use.
Four tests. Everything here passes all four.
Most startup stack lists optimize for cheapest today. That's how you end up migrating everything at twenty people, during the quarter you can least afford it.
It has a real API
If an agent can't drive it, it's a tool a human operates by hand forever. This is the most-ignored criterion on every stack list we've read, and the one that costs the most later — a cheap CRM with a weak API quietly becomes a full-time job.
The free tier is real, not a trial
A generous free tier that steps up gently beats a cheap plan that cliffs. Two things here are free at volumes most seed companies won't reach this year, and neither one holds your data hostage when you do.
It survives year two
The cheapest tool today is expensive if you migrate off it at twenty people. Every choice here scales on the same platform — you change a plan, not a vendor, and nobody spends a quarter re-implementing.
It collapses categories
PostHog is analytics, CDP and warehouse in one. Salesforge is email and LinkedIn in one. Fewer tools means fewer integrations, fewer schemas, fewer places for your data to disagree with itself.
What's not on the list, and why.
You'll notice there's no enrichment provider, no intent data, no prospecting database, no scheduling tool and no marketing automation platform. That isn't an oversight.
On day one you don't need them. Before you have a repeatable motion, buying an enrichment contract is buying a bill, not a capability. Most early teams can go a long way on what they can research directly.
When you do need them, don't buy five vendors. This is the category where a startup stack goes from $60 to $1,500 a month fastest — five overlapping contracts, each with its own credits, coverage gaps and annual commitment. Whatever you use to solve it, solve it as one layer rather than five line items. (That layer is what we build, which is why we have opinions about it — but the advice stands regardless of who you get it from.)
Scheduling and marketing automation are left out for a simpler reason: at this stage a calendar link and a well-written email do the job, and every tool you add is a tool an agent has to be taught.
Where this stack runs out — and what it costs then.
Nothing here breaks quietly. These are the ceilings, in the order you're likely to hit them.
- Attio
- Free ends at three users. Plus is $35/user/mo — so a five-person team is $175, not a re-platform.
- Salesforge
- Pro covers 5,000 emails and 1,000 active contacts a month. Growth at $80 takes you to 50,000 emails and unlimited LinkedIn senders.
- PostHog
- Free to 1M events a month. You'll feel this only once you have real product traction, and pricing is usage-based from there rather than a plan jump.
- Slack
- Free hides message history past a limit. Pro is roughly $9/user when that starts costing you context.
- The gap you'll feel first
- Not a tool ceiling — it's data. The moment you want to prospect at volume rather than research by hand, enrichment and signals become the next real decision.
Even fully maxed at a five-person team, this stack lands around $200 a month. That's the point of choosing on year-two cost rather than day-one cost.
This is the seed-stage answer.It isn't the only one.
The four tests don't change. What changes is which tools pass them, what breaks first, and how much of the decision is about tools at all.
One person runs everything
Cost near zero, nothing that needs migrating later, and few enough moving parts that a founder plus an agent can operate all of it. Outbound volume is low enough that free tiers genuinely hold.
Someone else is in the CRM daily
Permissions, pipeline reporting and lead routing start to matter for the first time. Outbound outgrows the entry tiers. Enrichment becomes a real line item — and the actual decision is whether you're buying vendors or buying a layer.
It stops being a tools problem
Attribution, deduplication across sources, and who owns which object. This is where teams that chose on day-one cost pay for it, and where a stack has to be designed rather than assembled — the wrong CRM here costs a quarter to leave.
One thing worth flagging, since it changes several of these calls: when we design a stack it's built to run with GrowFlex underneath, which turns the enrichment, prospecting and signals column from a set of vendor decisions into a single configured layer. That mostly matters from the middle column onward — at seed you're not there yet, which is why it isn't on the list above.
A stack builder, from real data.
We're collecting structured data on GTM tools — API surface, agent operability, real pricing behavior, where each one actually breaks — and turning it into a builder that assembles a stack around your stage, motion and budget. This page is the hand-made version of one row of it.
Take it. That's what it's for.
Nothing here is gated and nothing is for sale. Every tool is a direct signup — go and build it.
Not a sales call. If you don't need us, we'll say so.