Add CoinPulse API - crypto portfolio tracking #221

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soutone wants to merge 1 commit into mjhea0:main from soutone:add-coinpulse

soutone commented Jan 12, 2026 •

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Add CoinPulse API

Hi! I'd like to add CoinPulse API to the Open Source Projects section.

What it is: A production FastAPI application for cryptocurrency portfolio tracking.

Tech Stack:

FastAPI with Pydantic models
SQLAlchemy ORM (SQLite/PostgreSQL)
Tiered rate limiting with subscription plans
Webhook integrations for price alerts
Full test suite with pytest

Features:

Real-time crypto prices (15 coins)
Portfolio tracking with P/L calculations
Historical price data
Price alerts with webhooks
Authentication via API keys
Lemon Squeezy billing integration

Links:

GitHub (API): https://github.com/soutone/crypto-portfolio-api
GitHub (Python SDK): https://github.com/soutone/coinpulse-python
Live Demo: https://coinpulse.fly.dev

This is a real-world example of a production FastAPI app with authentication, rate limiting, webhooks, and payment integration.

Thanks for maintaining this list!


          Add CoinPulse API - crypto portfolio tracking

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