The provider timed out after committing
Your HTTP client raises ETIMEDOUT on POST /charges . Something has to be written to the database, the status column has two useful values, and so th…
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Third-Party API Integration: Costs and Failure Modes
Third-party API integration is the most consistently underestimated work in commercial software. The documentation reads clearly, the vendor publish…
Using Claude Code or Codex as a Teacher, Not an Autopilot
Learning to code with AI doesn’t mean letting the AI do the work for you. It means using AI as a thought partner that sharpens your reasoning, uncov…
Hotel price tracking with Google Hotels data: an API in 10 minutes (Python + n8n)
Google Hotels already compares every booking site for a hotel and a stay — Booking.com, Expedia, Agoda, Hotels.com and the hotel's own site. It has…
Mapping API Path, Query, Header, and Body Parameters to MCP Tool Schemas
An API operation can receive input from several places. Path parameters identify the record. Query parameters filter or paginate the result. Headers…
I Built an API Because My Government’s Website Got the Date Wrong (and Just… Deleted It)
There’s a funny (and slightly sad) story behind why I built mabims.dev . It started with a date. More specifically, a Hijri date . Once Upon a Time,…
Idempotency for Reliable APIs
Why idempotency matters When you build an API, retries are inevitable. Clients lose connections, timeouts happen, and users double-click buttons. Wi…
What Idempotent Actually Means: Why Retries Are Safe (and When They Aren't)
Originally published on Loop & Retry — field notes on building LLM agents that survive production. Search for "what does idempotent mean" and yo…
[AI in Practice] Gemini 3.5 Transcribe: Real-time Transcription and Speaker Diarization in a macOS Meeting Translation App
Previously I have a macOS App I use myself, gemini-live-translate-macos . It uses ScreenCaptureKit to directly capture audio from a specified App, e…
Have you ever experienced an API integration where the production environment is different from the test environment?
As a Software Engineer, i have integrated a lot of third party APIs. Some were great some are okay and some were frustrating We were tasked to integ…
Validating Input at the Edge: Why Four Checks in Four Places Are Worse Than One Border
📺 Prefer to watch? 90-second YouTube Short · 💬 Telegram Originally published on software-engineer-blog.com . Somebody signs up. Their browser sends…
Your scraper's defaultCountry setting invents phone numbers
Most contact scrapers have a setting called something like defaultCountry or region . It looks harmless. It is the fastest way to fill a database wi…
Prompt caching strategies to cut LLM costs by 70%
If you're running LLM-powered features in production, your token bill is probably higher than it should be. Most teams feed the same system prompt,…
Chinese LLM API Pricing Comparison 2026: The Definitive Buyer's Guide
If you're shopping for LLM APIs in 2026, Chinese vendors are impossible to ignore. As of August 21, 2026 (always check official pricing pages for th…
Chinese LLM Tool Calling Compatibility: A Systematic Comparison (as of Aug 2026)
Chinese LLM providers have matured quickly. As of August 2026, all five major Chinese LLM families — DeepSeek, GLM, Qwen, Kimi, and MiniMax (10 prod…
Why OpenAI & WhatsApp Block Virtual Numbers (And How Non-VoIP Verification Works)
When developing, testing, or signing up for modern platforms like OpenAI (ChatGPT) , WhatsApp Business , Google , or Telegram , you have likely enco…
Every ANAF e-Factura rejection, explained — a developer's field guide
Romania's e-Factura is mandatory, and the hard part isn't the idea — it's ANAF's stack. You hit SOAP endpoints, an OAuth + digital-certificate lifec…
Building a Zero-Downtime Cache Invalidation Pipeline with Webhooks
Cache invalidation is notoriously difficult to get right in high-throughput systems. If your cache TTL is too short (e.g. 10 seconds), your database…
Third-party APIs don't fail loudly — they return less
For several days, my service was quietly broken and every health check said it was fine. No exceptions. No 5xx. No alerts. The upstream API returned…
I built an open-source directory of 50+ free public APIs with daily automated health-checks
Hey everyone! 👋 Finding reliable, free public APIs for side projects or learning is always a hassle because many listed APIs eventually go down or b…
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026
Webhooks vs Polling: Why Real-Time Integrations Matter in 2026 In modern software, knowing that something happened is often just as important as kno…
I wanted a smaller OpenRouter catalog for Chinese models, so I built one
OpenRouter is useful. I still use it when I need broad model coverage. But for one part of my work, that broad catalog became friction. I mainly wan…
A user spent a day confirming an email that was already confirmed
A user spent a day confirming an email address that was already confirmed, because my API kept telling him to. He was right and my error message was…
Building a Wait-Free Queue in Rust
There is a point in systems programming where concurrency stops being about “running things at the same time” and starts becoming a conversation abo…
Runtime Intervention for LLMs: How Mentat Steers Agent Reasoning Without Fine-Tuning
Most production LLM control sits between two extremes: prompt engineering (brittle, context-dependent) and fine-tuning (expensive, slow iteration).…
Build a caption QA harness in Python: WER, missed entities, timing and reading rate
TL;DR We're building a caption evaluation harness that scores a WebVTT file on four axes instead of one: word error rate under a fixed normalizer, m…
Build a resumable video migration worker: ledger, bounded concurrency, 429 backoff
TL;DR We're building a migration worker that moves a video library into a hosted video API without tripping rate limits or double-creating assets. S…
Announcing the MailKite Server developer API: use the client against your own server
MailKite Server now has a developer API that can replace the hosted API for its core send-and-receive path. The practical result is small: point the…
The agent posted successfully. To the wrong account.
Back in July I wrote about what it takes to wire an AI agent into social platforms : six OAuth flows, three-step media uploads, tokens expiring on t…
Claude Opus 5 API Access: Pricing, Setup, and Model Comparison (As of Aug 2026)
Claude Opus 5 API Access: Pricing, Setup, and Model Comparison (As of Aug 2026) As of Aug 2026, Claude Opus 5 API access is fully open to individual…