⚡ Developer Portal

Build with Finstyra

Embed 100+ financial calculators into your app, website, or workflow with our REST API. Fast, reliable, and free to get started.

View API Docs →Contact API Team

Quick Start

Make your first API call in seconds:

curl -X POST https://api.finstyra.com/v1/calculate/mortgage \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "home_price": 400000,
    "down_payment": 80000,
    "interest_rate": 7.0,
    "loan_term": 30,
    "currency": "USD"
  }'

Don't have an API key? Request free access →

Official SDKs

SDKs ship alongside the public API launch. Here's what's planned:

Coming Soon

🟨JavaScript / TypeScript

npm install @finstyra/sdk

Coming Soon

🐍Python

pip install finstyra

Coming Soon

🐘PHP

composer require finstyra/sdk

Coming Soon

🔵Go

go get github.com/finstyra/go-sdk

Java and C# SDKs are also planned. All SDKs will be open source on GitHub once released.

Developer Resources

API Reference

Complete REST API documentation with all endpoints, parameters, and response schemas.

Quick Start Guide

Get your first API call working in under 5 minutes. No credit card required.

Code Examples

Ready-to-use code samples in JavaScript, Python, PHP, Go, Java, and C#.

Changelog

Stay up to date with API changes, new endpoints, and deprecation notices.

Status Page

Real-time API uptime and incident history. We target 99.9% availability.

OpenAPI Spec

Download our OpenAPI 3.1 spec to generate client libraries in any language.