Developer Tools & APIs

Lightweight IoC for the front-end. Compose apps you can control and trust.

Ariadne Loop is a local-first Loop Engineering workbench for turning rough coding-agent context into verifiable specs, agent packets, verifier gates, stop rules, rollback rules, and JSON reports.

Production REST API host for the Crypto APIs blockchain platform — agent-facing entry point served at the API base URL, with product inventory, conventions, MCP server pointer, and deprecation guardrails.

Open-protocol directory of AI-native websites. Verifies llms.txt and agents.json compliance, issues trust badges, and makes verified sites queryable by AI agents and IDE assistants.

Open spec for how services communicate operational limits to humans and agents: limits discovery, structured refusals, conformance levels.

Free unified REST API for German city infrastructure data (weather, air quality, water levels, EV chargers, live public transport, demographics) from 35+ official sources

Micra.js is a ~5 KB reactive UI library for server-rendered pages: reactive `state` via a shallow `Proxy`, declarative `data-*` and a cross-component event bus.

API toolkit for phone check, passive WhatsApp check, email validator, and IP geo API.

doancongtuan.com shares practical WordPress, VPS, Astro, hosting, web performance, and affiliate publishing lessons by Steven Doan.

Production-readiness gate for AI-built apps. VibeRaven gives coding agents a launch checklist, prioritized gaps, agent tasklists, and deploy verification before auth, billing, database, RLS, env vars, webhooks, monitoring, or tests.

Free pre-launch website audit for indie makers and AI tool sites, with launch-readiness checks for SEO basics, crawlability, sitemap, robots.txt, analytics signals, security headers, and AI search readiness.