Build Your Own Mutual Fund NAV Tracker in Python: CLI, Web UI, No API Key
Mutual fund NAVs aren't live. They land once a day, after markets close. Here's how to build a zero-dependency Python CLI and a local web UI...
Nov 2, 2026
14 min
Is Kite Connect Really Free? What a 2026 Setup Actually Costs
Kite Connect has a free plan, a ₹500 plan, and since October 2026 a conditional fee waiver. Before an AI agent touches your account, here is...
Oct 27, 2026
11 min
Cheaper Tokens, Larger Invoices: A Decision Rule for Kimi K3.1 Pro
Two models, seven tasks, one rule that can be checked in thirty seconds: switch when ten times the new model's output minus fifteen times th...
Oct 26, 2026
5 min
Create and Cancel Orders via WebSocket on Binance
Until now it was only possible to receive data from Binance via WebSocket. To send requests to the Binance API, for example to create or can...
Sep 21, 2026
7 min
The Complete Binance Python API Guide (2026)
REST, WebSocket, order books, trailing stops, and cluster-scale infrastructure — the...
Sep 13, 2026
20 min
Handling Edge Cases in High-Frequency P2P Payouts: Lessons from Binance P2P and Safaricom M-Pesa Integration
Real-world engineering lessons from scaling automated crypto P2P payouts: solving sub-second race conditions, network drops, and double-spen...
Aug 20, 2026
4 min
What the Instagram API doesn't tell you about publishing
The Instagram API answers OK and nothing appears on your profile. Six gotchas that cost me an afternoon each: the two step publish, the URL ...
Aug 10, 2026
4 min
JWT Authentication Done Right: The 2026 Security Playbook
Most JWT implementations have at least one critical security flaw. Algorithm confusion, token theft via XSS, missing expiry validation, impr...
Jun 11, 2026
12 min