Quick answer
A working GTM stack in 2026 covers six jobs: data, enrichment and verification, sending, LinkedIn, CRM and signals, plus something to wire them together, such as Claude Code or n8n. The table below lists 24 tools for those jobs with the list price from each vendor's own pricing page on 15 October 2026, how each one charges and whether it has an API and an official MCP server. Most of them now do, so an AI assistant can work inside them. The data layer alone costs about $107 a month built around Claude Code or $185 on Clay's Launch plan, before sending and the CRM. One change to plan for: Trigify, a social signals tool, shuts down on 22 October 2026 after its team joined HubSpot.
How this list is sorted
I'm a GTM consultant. I set up cold email and LinkedIn outbound for B2B teams, and choosing the stack is part of every setup. People now ask a second question right after "which tool?": can my AI assistant use it?
So the list is sorted by the job each tool does rather than ranked from best to worst, because you need one tool per job, not the "best" tool overall. For every tool I checked three things on 15 October 2026: the price on its own pricing page (monthly billing unless I say yearly), whether it has an API you can call without opening the app and whether the vendor publishes an official MCP server. The MCP details for 13 of these tools come from my check of MCP servers for sales tools, done the same day.
Disclosure. Salesforge, Mailforge, Infraforge and Warmforge are what I run for clients, and I've written guest articles for Salesforge's blog. No tool in this article pays me and there are no affiliate links. Where another tool fits a job better, I say so.
The 24 tools at a glance
| Job | Tool | Price on 15 Oct 2026 | Charged by | API | Official MCP |
|---|---|---|---|---|---|
| Data | Apollo | Free plan; Basic $65, Professional $99 a month ($49 and $79 billed yearly) | Seat, plus credits | Custom plans | Yes, any plan (beta in Claude) |
| Data | ZoomInfo | Quote only; free account with 1,000 data credits | Licence and credits | Yes | Yes, needs data credits |
| Data | Leadsforge | $49 a month, 2,000 credits | Credits | Forge API key | Yes, via the Forge server |
| Data | Prospeo | Free 100 credits; Starter $49 a month | Credits per user | Starter and up | Yes |
| Enrichment | Clay | Free; Launch $185 a month ($167 yearly) | Actions and data credits, unlimited seats | HTTP API on Growth, Clay API on Enterprise | Yes |
| Verification | ZeroBounce | Free 100 credits a month; from $39 for 2,000 checks | Credits | Yes, free plan too | Yes, open source |
| Web data | Apify | Free $5 of usage; Starter $19 a month | Usage | Yes | Yes |
| Web data | Firecrawl | Free 1,000 credits; Hobby $19 a month | Credits | Yes | Yes |
| Sending | Salesforge | Pro $40, Growth $80 a month | Flat plan, unlimited mailboxes and workspaces | Growth | Yes, Growth |
| Mailboxes | Mailforge | $3 per mailbox a month (10 minimum); .com domain $14 a year | Mailbox | Forge API key | Yes, via the Forge server |
| Warmup | Warmforge | Included with Salesforge; otherwise $10 per mailbox slot | Mailbox | Forge API key | Yes, via the Forge server |
| Sending | Instantly | Growth $47 a month | Flat plan by volume | All Outbound plans | Yes |
| Sending | Smartlead | Base $39 a month | Flat plan by volume | Depends on plan | Yes, Claude Desktop only |
| Sending | lemlist | Email $69 a month; Multichannel $109 per user | Plan or user | All plans | Yes, all plans |
| HeyReach | Growth $79 per sender a month; Agency $999 | Sender | Yes | Yes, all plans | |
| Expandi | Business $99 a month ($79 yearly) | Seat | Not listed on pricing page | Yes, in beta | |
| CRM | HubSpot | Free and paid plans; check current pricing | Seat | Yes, limits by tier | Yes, any HubSpot plan |
| CRM | Pipedrive | From $14 a seat a month, billed yearly | Seat | Every plan | Yes, all plans |
| CRM | Attio | Free up to 3 seats; Plus €39 a seat a month | Seat | Yes | Yes, all plans |
| CRM | Close | Solo $19 a user a month ($9 yearly) | Seat | All plans | Yes |
| CRM | Salesforce | Starter Suite $25 a user a month | Seat | Yes, by edition | Yes, Enterprise Edition and up |
| Signals | Common Room | Essential $2,500 a month, billed yearly | Plan (seats and contacts) | Yes | Yes, all plans |
| Glue | Claude Code | In Claude Pro, $20 a month ($17 yearly); Max from $100 | Subscription | Calls any API you give it | Connects to MCP servers |
| Glue | n8n | Community edition self-hosted; cloud Starter €20 a month, billed yearly | Executions | Yes | MCP server and client nodes |
Sources: each vendor's pricing page, plus Apollo's pricing FAQ for API access, ZoomInfo's MCP docs for the free account, Prospeo, ZeroBounce, Apify, Firecrawl, Expandi and Close for their MCP servers. Prices change often, so check the vendor's page before you buy.
Data, enrichment and verification
Here you either buy one platform that pulls from many sources or call a few data APIs yourself.
- Clay says it finds and enriches data from 150+ providers. You can bring your own provider keys, which skips data credits but still uses actions. HTTP API calls and webhooks start on Growth ($495 a month); the Clay API itself is Enterprise only.
- Apollo puts a database and sequencing in one login, with a free plan. Its pricing FAQ puts API access for custom integrations on Custom plans, while its MCP server works on any plan, free included.
- Prospeo is the opposite shape: a data API first. The public API starts on Starter, and its MCP server runs at mcp.prospeo.io.
- ZoomInfo sells by quote, but a free account with 1,000 data credits is enough to try its MCP server.
- ZeroBounce checks the list before you send. Verification is a narrow job, so a dedicated tool earns its spot even next to a sender's built-in checker.
Apify and Firecrawl cover web data no database has, like job posts, review sites and company pages. With their MCP servers, an assistant can run a scraper and read the result in one conversation.
Sending, mailboxes and LinkedIn
Great copy means nothing if it lands in spam, so this is the layer I'd cut last. A safe pace is 20 to 30 emails per mailbox per day after 3 to 4 weeks of warmup, so 10 mailboxes at Mailforge's minimum cost $30 a month and send roughly 200 to 300 emails a day. Salesforge includes warmup through Warmforge, so there's no separate warmup bill.
Other senders fit some teams better. Pick Instantly if you want a lead database in the same account (it's a separate plan next to unlimited mailboxes and warmup). Pick lemlist Multichannel if one rep wants email, LinkedIn and calls in one tool. Pick Smartlead if you resell outbound under your own brand (more below). The detail is in Smartlead vs Instantly vs Salesforge.
For LinkedIn, HeyReach charges per sender and suits teams running many profiles. Expandi charges per seat, and its MCP server drafts campaigns but never activates one by itself. Salesforge Growth and lemlist Multichannel also run LinkedIn steps, so you may not need a separate tool.
CRM: pick for the team you have
If your team already runs a CRM, connect the stack to it rather than switching. If you're choosing from scratch:
- Pick Attio or HubSpot if you're a small team and want to start free. Attio's free plan covers up to 3 seats; HubSpot's Claude connector can create and update records but not delete them.
- Pick Pipedrive if you want a simple pipeline at a low seat price. Every plan includes an API token, with a daily usage budget by plan.
- Pick Close if your reps call and text from the CRM. Calling, SMS and email are built in from Essentials ($49 a user a month), and its MCP server lets you grant read, write or delete access separately.
- Pick Salesforce if you're already big enough to need it. Its hosted MCP servers need Enterprise Edition or above and an admin to switch them on.
Intent signals you can call by API
Timing beats targeting. The best lead is the one who just did something, so a signal source is worth more than another database. If you want signals without opening a dashboard:
- Common Room includes its MCP server on all plans and publishes an API. It's the expensive end: Essential is $2,500 a month billed yearly, with 5 seats and up to 100,000 contacts.
- ZoomInfo exposes buyer intent through its MCP server, using data credits.
- Clay has job change, company news and social listening signals from Launch, and web intent plus webhooks from Growth.
- Prospeo plans include 3 to 12 intent topics, and its API starts on Starter.
- lemlist sells buying intent signals as an add-on, $29 a month for 100 signals.
If you run Trigify, plan the move now. Its site says the team is joining HubSpot and the standalone platform closes for most customers at 23:59 BST on 22 October 2026, when its integrations and API stop too.
What the stack costs: Claude Code or Clay
A common question is whether you can run the whole thing from Claude Code instead of paying for Clay. Here is the list-price arithmetic for the data and enrichment layer, monthly billing:
| Route | What you pay for | Per month |
|---|---|---|
| Clay | Launch: 2,500 data credits, 15,000 actions, signals, campaign integrations | $185 |
| Claude Code | Claude Pro $20, Prospeo Starter $49 (2,000 credits), Apify Starter $19, Firecrawl Hobby $19 | $107 |
| Both routes | Sender (Salesforge Growth $80 if you want its API), 10 mailboxes ($30), verification and a CRM seat | About $110 and up |
The credits aren't like for like, so read this as a floor, not a quote. The bigger cost of the Claude Code route is your time: when a provider changes its API, it's your script that breaks. Heavy use can also push you from Pro to Max, from $100 a month.
Where I draw the line. Buy what depends on things you can't code, like sending reputation and licensed data. Build only the glue that's specific to your market. Automate the work, not the thinking. More in the build vs buy framework for GTM tooling.
If you run outbound for several clients
Agencies need each client's data kept apart and workflows they can reuse. What the vendors offer:
- Salesforge includes unlimited workspaces on both plans.
- HeyReach's Agency plan is $999 a month, and each workspace gets its own MCP connection URL and key.
- Smartlead gives each white-label client its own API key, with usage tracked per client.
- Clay allows unlimited users and tables per workspace on every plan.
In Claude Code, you write the workflow once and swap the config per client. Give each client its own API keys, so one client's run can never touch another client's data.
Key takeaways
- Build the stack by job: data, enrichment and verification, sending, LinkedIn, CRM and signals, plus glue.
- Most tools here publish an official MCP server now. Check the plan it needs: Salesforge needs Growth, Salesforce needs Enterprise Edition and ZoomInfo needs data credits.
- Clay Launch costs $185 a month; a Claude Code route for the same layer starts around $107 in list prices, plus your time to maintain it.
- Keep sending and mailboxes on proven tools. Build only the glue that's specific to you.
- Trigify closes on 22 October 2026. Common Room, ZoomInfo, Clay and Prospeo all offer signals through an API or MCP.
FAQ
What tools do you need for a GTM stack in 2026?
One tool per job: a data source, an enrichment or verification tool, a sender with mailboxes and warmup, a LinkedIn tool if LinkedIn is a channel, a CRM and a signal source. Claude Code or n8n can wire them together.
If you could keep only one GTM tool, which would it be?
The sender with warmup built in. A list can live in a spreadsheet and a pipeline in a CRM's free plan for a while, but nothing replaces mailboxes that reach the inbox.
Which GTM tools have an official MCP server?
On 15 October 2026: Apollo, ZoomInfo, Prospeo, Clay, ZeroBounce, Apify, Firecrawl, Salesforge and its Forge products, Instantly, Smartlead, lemlist, HeyReach, Expandi (in beta), HubSpot, Pipedrive, Attio, Close, Salesforce and Common Room.
Is it cheaper to run GTM from Claude Code than to pay for Clay?
In list prices, often yes: Claude Pro plus Prospeo, Apify and Firecrawl comes to about $107 a month against $185 for Clay Launch. You pay the difference in your own time, because you build and maintain the workflows yourself.
Which intent signal tools can I use through an API?
Common Room (API and MCP on all plans), ZoomInfo (intent through its MCP server), Clay (signals from Launch, webhooks from Growth) and Prospeo (intent topics through its API). Trigify's platform closes on 22 October 2026.