F Fincore API

Valuation tools for builders and investors

Turn assumptions into a clear valuation.

Calculate P/E, PEG, future price and bear/base/bull scenarios through a simple REST API—ready for Excel, Google Sheets and investment apps.

Try an example → Read the docs
✓ JSON responses ✓ Excel-ready ✓ No subscription

API response

200 OK
GET/live/fairValueRange?ticker=META
{
  "ticker": "META",
  "futureEps": 45,
  "bearCasePrice": 810,
  "baseCasePrice": 1080,
  "bullCasePrice": 1350,
  "fairValueRange": "810 - 1350"
}
↯ REST APIapplication/json
5valuation endpoints
RESTsimple GET requests
JSONstructured output
$1per 100 requests

One focused toolkit

Valuation logic without rebuilding every formula.

Send your assumptions, receive consistent calculations and plug the response into the workflow you already use.

01/fairValueRange

Bear, base and bull cases

Turn future EPS and valuation multiples into a clear price range.

Explore endpoint → 02/futurePrice

Project future price

Compound EPS growth and apply a future P/E multiple.

Explore endpoint → 03/priceToEarnings

P/E, growth and PEG

Combine current and forward assumptions in one response.

Explore endpoint → 04/ruleOf40

Evaluate SaaS efficiency

Combine revenue growth and free cash flow margin in a Rule of 40 score.

Explore endpoint → 05/tenBagger

Calculate required return

See the CAGR required to grow an investment tenfold.

Explore endpoint → DOCS↗

Build your first request

Authentication, parameters, examples and response formats.

Open documentation →

Interactive example

See the calculation before you integrate.

Change the assumptions and preview the JSON response locally. Existing customers can add an API key to send the same request to Fincore.

GET/fairValueRange?ticker=META&futureEps=45&lowPE=18&basePE=24&highPE=30

Your API key is sent only to the Fincore API when you choose “Run API request”.

Response
{
  "ticker": "META",
  "futureEps": 45,
  "bearCasePrice": 810,
  "baseCasePrice": 1080,
  "bullCasePrice": 1350,
  "fairValueRange": "810 - 1350"
}

Excel integration

Bring repeatable valuation into your spreadsheet.

Use Power Query to send assumptions from your model and refresh the results without copying calculations between workbooks.

  1. 1
    Build your request

    Connect ticker and assumptions to the endpoint parameters.

  2. 2
    Add authorization

    Pass your API key in the request header.

  3. 3
    Refresh your model

    Load the JSON fields into the cells you already use.

View Excel instructions →
XValuation model.xlsx
Connected to Fincore API
Fincore API used in an Excel valuation model

Simple pay-as-you-go access

Start small. Pay only when you need more.

No recurring subscription and no complicated tiers. Purchase a request pack and receive an API key after checkout.

API request packOne-time payment
$1 USD

100 authenticated API requests

  • ✓ Access to all five endpoints
  • ✓ Excel and Google Sheets compatible
  • ✓ API key delivered after checkout
  • ✓ Email support
Secure checkout. No subscription.

Questions

Before your first request.

Does Fincore provide live financial data?

Fincore calculates results from the assumptions you submit. You stay in control of the EPS, growth rates and valuation multiples used in the model.

Can I use the API in Excel?

Yes. Excel Power Query can call the API with an Authorization header and load the JSON response into a worksheet.

How do I authenticate?

Send your key as Authorization: Bearer YOUR_API_KEY with each request.

Is this investment advice?

No. Fincore is a calculation tool. Outputs depend entirely on your assumptions and should not be treated as investment advice.

Ready to build?

Put consistent valuation logic behind your next model.

Read documentation