Is the Free Startup Burn Rate & Cash Runway API free to use in production apps?

Yes! All FinCalculator REST APIs are completely free, zero-auth, open-CORS, and edge-cached for high performance across global web and mobile applications.

What is the rate limit for /api/v1/startup-burn-rate?

Endpoints are cached at the edge for 24 hours. There are no restrictive rate limits for standard web traffic and mobile applications.

Business & SME APIWeb Calculator UI

Free Startup Burn Rate & Cash Runway API (2026)

API for founders and investors to calculate startup cash runway and cash balance depletion trajectories.

Interactive API Playground & Live Test

GET/api/v1/startup-burn-rate

Zero Auth • Open CORS

Query Parameters

cashnumber • required

Current bank cash balance in ₹

revenuenumber • required

Monthly recurring revenue in ₹

expensesnumber • required

Monthly operating expenses in ₹

curl -X GET "https://fincalculator.in/api/v1/startup-burn-rate?cash=5000000&revenue=200000&expenses=700000" \
  -H "Accept: application/json"

Live JSON Response (HTTP 200 OK)

Click "Execute Live API Request" below...

Request Parameters Schema

Parameter	Type	Required	Description / Notes
cash	number	Required	Current bank cash balance in ₹
revenue	number	Required	Monthly recurring revenue in ₹
expenses	number	Required	Monthly operating expenses in ₹

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