TAM-SAM-SOM Calculator MCP for AI. Model total market size and achievable revenue targets.
Works with every AI agent you already use
…and any MCP-compatible client








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TAM-SAM-SOM Calculator determines your market opportunity size by calculating three key figures: Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM).
Use this MCP to model potential revenue using established top-down and bottom-up methods, giving you a clear, tiered view of customer reach and realistic growth targets.
What your AI can do
Apply sam refinement
Narrows the initial total market size down to a specific, reachable service area.
Calculate tam base
Establishes the baseline for the absolute largest possible market size.
Project som capture
Calculates your expected, realistic market share based on growth projections.
Calculates the absolute maximum revenue available in a given industry or geography.
Reduces the initial overall market size to reflect only the areas you can actually serve.
Projects your achievable market share based on growth assumptions and competitive analysis.
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TAM-SAM-SOM Calculator: 3 Tools
These three tools allow you to calculate market size in distinct stages, moving from total potential down to your realistic capture rate.
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Add this MCP to Claude, Cursor, or Windsurf and your AI stops guessing. It gets real tools to look things up, take action, and handle the stuff you keep doing by hand.
Start using TAM-SAM-SOM Calculator on VinkiusApply Sam Refinement
Narrows the initial total market size down to a specific, reachable service area.
Calculate Tam Base
Establishes the baseline for the absolute largest possible market size.
Project Som Capture
Calculates your expected, realistic market share based on growth projections.
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Works with Claude, ChatGPT, Cursor, and more
The Model Context Protocol standardizes how applications expose capabilities to LLMs. Instead of operating in isolation, your AI gains direct access to external platforms, live data, and real-world actions through secure, standardized connections.
This connection provides 3 powerful capabilities that interface natively with Claude, ChatGPT, Cursor, and other compatible AI platforms. No middleware. No custom integration required.
Every business plan starts with guesswork and assumptions.
Today, creating a market size projection involves jumping between spreadsheets. You start with the biggest number available—the total potential industry revenue. Then, you manually filter that down by region or segment in one tab, copy those numbers, and paste them into another sheet to calculate your serviceable area. It's tedious, prone to cross-sheet errors, and frankly, it takes forever.
With this MCP, the process is streamlined. You run a single prompt through your agent: first, we find the total market size. Then, in one go, we apply filters for your specific region and segment to get your SAM. The output you get back isn't just data; it's a clean, logically structured number ready to paste into your presentation.
The TAM-SAM-SOM Calculator delivers actionable market sizing.
You eliminate the need for multiple manual calculations and complex formula chaining. Instead of managing three different formulas across a spreadsheet, you trigger a simple sequence of operations that handles the reduction filters from total potential to realistic capture rate automatically.
What's different now is certainty. You get a single, unified output showing not just how big the market *could* be, but what it’s probable for you to actually achieve.
What your AI can actually do with this
Need to know how big your market really is? This connector gives you an engine for precise market sizing. You can start by figuring out the total money available in your industry using broad metrics. Next, you narrow that scope down—maybe focusing just on a specific region or customer segment.
That process yields your Serviceable Addressable Market (SAM). Finally, the system projects what's actually realistic for you to capture over time, giving you a concrete SOM figure. This process moves beyond guesswork and gives you solid numbers to back up your pitch deck. If you need reliable market sizing data fed into your existing tech stack, connecting through Vinkius’ catalog lets your AI client access this engine instantly.
019eeae6-2a00-70c9-bb55-9143d7ae55e8 Here's how it actually works
The bottom line is: it takes raw industry data and turns it into three distinct, actionable figures for business planning.
First, input the broad metrics to establish the total potential size of the entire market.
Next, apply filters—like restricting geography or segment type—to narrow that figure down to your actual reachable market (SAM).
Finally, provide growth expectations and a timeline to determine the specific portion you can realistically capture, resulting in your SOM.
Who is this actually for?
Strategy consultants who need to build convincing financial models; Product Managers figuring out where the next revenue stream should be; or Financial Analysts needing rapid, verifiable market sizing data without manual spreadsheet work.
Uses this MCP when building a new business case. They run initial calculations to prove that a market opportunity exists and quantify the potential revenue stream.
Needs to quickly model multiple scenarios for different clients, comparing theoretical maximums (TAM) against achievable goals (SOM).
Checks market viability before a major feature launch. They use the tool to confirm that the target customer segment is large enough and reachable.
What Changes When You Connect
Move past gut feelings. The calculate_tam_base tool gives you a definitive starting point, proving the sheer scale of the industry before you even start filtering.
Pinpoint your real target. Instead of using massive, vague numbers, the process uses apply_sam_refinement to focus only on the segments and regions you can actually serve.
Set credible goals. The system doesn't just give you a big number; it runs through project_som_capture, giving you a grounded, believable revenue target for Year 3.
Build better pitches. You get three distinct metrics—TAM, SAM, and SOM—allowing your AI client to generate complete, tiered financial narratives automatically.
Save time on spreadsheets. Instead of spending hours adjusting formulas in Excel, you run the entire calculation sequence through one simple prompt.
See it in action
Pitching a new enterprise solution
A PM needs to prove that their software is needed. They ask their agent to first calculate the total potential market size, then filter it by corporate clients in North America, and finally project what's reachable within five years.
Evaluating a geographic expansion
A VP of Strategy needs to know if moving into Southeast Asia is worth it. They use the tool to calculate TAM for the entire Asian market, then refine that figure using local data parameters before deciding on resource allocation.
Annual business planning review
A Business Analyst needs to update their department's revenue targets. They feed in last year’s SAM and ask the tool to project a realistic market capture rate for the coming fiscal year, grounding their budget proposal.
Determining investment readiness
A founder needs funding. They use the calculator to establish a massive TAM number, then narrow it down using apply_sam_refinement to show investors exactly where the company's focus lies and how big that niche is.
The honest tradeoffs
Using only one metric
Just stating, 'Our market is huge!' without showing any proof or narrowing down the scope.
Always start broad with calculate_tam_base to set the scale. Then immediately follow up by running apply_sam_refinement to show exactly which part of that large number you are actually targeting.
Confusing potential with probable
Using a massive TAM figure and assuming it's all yours, leading to unrealistic sales goals.
Don't stop at the SAM. You must run project_som_capture last. That number is your real-world, accountable target.
Manually recalculating stages
Running three separate calculations in different programs and hoping they all match up.
Use the MCP to run the full sequence—from calculate_tam_base through refinement, ending with SOM projection. It keeps the data flow consistent.
When It Fits, When It Doesn't
Use this MCP if your goal is building a multi-stage financial argument: first establishing maximum potential (TAM), then defining scope (SAM), and finally setting realistic goals (SOM). You need to prove that your opportunity is not just big, but achievable. Don't use this if you only need one single number—for example, if you are simply checking the total revenue of a known, fixed market. In those cases, a simple data query tool would be better. If you need pure predictive modeling without grounding it in real-world filters (like geography), look at dedicated forecasting software instead.
Questions you might have
How does the TAM-SAM-SOM Calculator use `calculate_tam_base`? +
The tool starts by calculating the total market size based on your initial inputs, establishing the absolute maximum revenue potential. This provides the necessary starting baseline for all subsequent calculations.
What is the difference between TAM and SAM when using `apply_sam_refinement`? +
TAM is everything possible in the world; SAM only includes the portion of that market that your business can actually reach, based on filters like geography or segment.
Is SOM just a guess? How accurate is `project_som_capture`? +
No. The tool uses established growth projection metrics and current assumptions to generate an achievable market share figure (SOM), making it more grounded than simple guesswork.
Does the TAM-SAM-SOM Calculator handle different methodologies? +
Yes, it supports both top-down methods (starting big and filtering down) and bottom-up modeling to give you a comprehensive view of your market potential.
What data types can I use when calling `calculate_tam_base`? +
It accepts numerical inputs for potential customers and average spend. The tool requires clear, quantifiable figures; it doesn't process qualitative descriptions or raw text files.
If my input data is incomplete, how does the system handle errors when I use `apply_sam_refinement`? +
The MCP provides specific error codes and field validation messages. It won't run if required parameters like initial TAM values or refinement percentages are missing.
Are there any rate limits or performance concerns when running multiple projections with `project_som_capture`? +
The MCP is designed for professional use and handles high volumes of requests efficiently. For extremely heavy, continuous usage, check the Vinkius marketplace guidelines for best practices.
What kind of client applications are compatible with this MCP when running `project_som_capture`? +
This MCP works with any AI client that supports the Model Context Protocol. You just need to connect your preferred agent through a standard Vinkius subscription.
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