Our sister product

Excel & Google Sheets to APIs

Turn Excel into an API.
Ready for AI & automation.

Your pricing, calculations and business rules already work in Excel or Google Sheets. SpreadAPI turns them into a spreadsheet API that AI agents, workflows and your own software can call. Without rebuilding the logic in code.

Explore SpreadAPI Try the example

REST API · MCP for AI agents · Google Sheets via .xlsx export

Excel .xlsxGoogle Sheets .xlsx export

XTeamplan.xlsx.xlsx

	A	B
2	Price per user	€29.00
3	Number of users	24 IN
4	Term (months)	12 IN
5	Discount	10 %
6	Monthly price	€626.40 OUT

ƒx=B3*B2*(1-B5)

REST API MCP

AI agentsMCP

AutomationWorkflows

Your softwareREST API

Your model calculates. Other systems use the result.

One spreadsheet model. Two ways to put it to work.

Interfaces for people.

Build apps your customers and teams can use.

APIs for agents & automation.

Make your calculations available to other systems.

See what changes when your spreadsheet becomes an API

One model. Three ways to use it.

Change the purple input cells. The API response, the agent’s quote and the automation all use the same calculation.

Teamplan · Your pricing modelInteractive example

Your model powers the calculation.

Change the input cells.

XTeamplan.xlsx

	A	B
2	Price per user	€29.00
3	Number of usersseats IN
4	Term (months)term IN
5	Term discount	10 %
6	Monthly pricemonthly_price OUT	€626.40

ƒx=B3*B2*(1-B5)

Team pricing

5–80 users · 12 or 24 month term

You maintain the model. Other systems receive the outputs you choose.

Send inputs. Receive results.

Your application calls the calculation through a REST API.

POST/api/v1/services/teamplan/executeExample

{
  "inputs": {
    "seats": 24,
    "term": 12
  }
}

Calculated result

{
  "outputs": [
    { "name": "monthly_price",
      "value": 626.40 }
  ]
}

Interactive simulation with sample data. No API or AI requests are sent.

Calculation: 24 users, 12 months. €626.40 per month.

01
Import your model
Use your Excel file or export your Google Sheet as .xlsx.
02
Choose inputs and outputs
Define the values your service accepts and returns.
03
Publish your service
Connect it through a REST API or MCP.

How SpreadAPI works

From a workbook to a working process

Your expertise, where it is needed.

AI AGENTS

Let your agent consult your model.

A customer asks for a quote. The agent sends the parameters to your pricing model and uses its calculated result in the answer.

Explore AI integration

AUTOMATION

Put calculations into the workflow.

A new request arrives. Your workflow calculates a price, score or commission through SpreadAPI, then passes the result to the next step.

Explore automation

YOUR SOFTWARE

Keep the logic your team understands.

Your application sends inputs and receives JSON. The business team maintains the Excel model; developers integrate its calculations.

Read the API documentation

Your model. Your permissions.

Share the result. Protect the know-how.

A calculation service does not need to disclose your formulas. You define which inputs it accepts and which results it returns.

Return the outputs you select.
Keep formula access restricted.
Grant additional AI access only where you intend it.

Security & access controls

Inputs

seats: 24
term: 12

Your calculation logic

Stays within the service

Selected outputmonthly_price: 626.40

The calculation call returns the result. It does not require you to disclose your formulas.

Need to run it on your own servers?

SpreadAPI Runtime also lets you operate calculation services on your own infrastructure.

Explore on-premises

A few things worth knowing.

What is an Excel API?

An Excel API, or spreadsheet API, accepts inputs from other software, calculates them with your spreadsheet formulas and returns the results as JSON. Nobody has to open the file. SpreadAPI publishes your Excel model as such a REST API and as an MCP tool for AI agents.

When should I use Airrange, and when SpreadAPI?

Use Airrange when people need a web app with inputs, results and a designed interface. Use SpreadAPI when an AI agent, an automation or your own software needs to call the calculation through an API. SpreadAPI is our separate sister product.

Do I need to rewrite my Excel formulas?

You configure input and output cells and publish your model as a service. You do not have to reimplement the calculation in application code. Test your workbook with representative values before publishing; the SpreadAPI documentation lists supported features and limitations.

Can I use a model from Google Sheets?

You can export it as an Excel file (.xlsx) and import it into SpreadAPI. Check the formulas and results after import. The import uses the version saved in your exported file.

Where do I find plans and technical details?

Current plans, API documentation, MCP setup and deployment options are maintained on spreadapi.io. The links below take you directly to the product.

Give your model a new role.

Explore SpreadAPI and turn your calculations into a service for AI, automation and software.

Start with SpreadAPI Documentation

Plans & pricingContinue with our sister product at spreadapi.io.

Turn Excel into an API.Ready for AI & automation.