ipaddress.sh

Publishing API: post or schedule to 10 social networks with one HTTPS call, or from an AI agent over MCP. Free forever: 15 posts/month, 3 connected accounts, all networks except X.

Free web search and fetch API with rate limits. ⬆️ Back to Top

Webhook gateway hosted in Germany. Signature verification, retries, dead letter queue and replay. Free plan: 10,000 events per month.

Built-in knowledge-based algorithms in the cloud.

Semantic image search API across 9 free photo sources (Unsplash, Pexels, Pixabay, Kaboompics & more), 9M+ photos under one JSON schema instead of one integration per source. Plain-language queries, reverse image search, filters on color, orientation and license. CORS is open on read endpoints, so it

Fraud and trust scoring for an IP, email, phone, domain or device in one call, plus authorization and Web Bot Auth verification for AI agents. 1,000 lookups/month free, no card required.

Zebra ZPL label rendering and validation API and browser viewer. Free tier includes an anonymous rendering quota and barcode generation with no watermark, no card required.

Free Zip Code API, access to Worldwide Postal Code Data. 5,000 free requests/month.