High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Search AI tools, categories, and leaderboards
Apify records 4,147,762 monthly visits with +3.9% month-over-month growth and Freemium, Contact for Pricing pricing. CalcForge records 32,924 monthly visits with +30.4% growth and Free pricing.
Open-source engineering calculators for civil and structural design
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | apify.com | calcforge.com |
| Pricing Model | Freemium, Contact for Pricing | Free |
| Monthly Visits | 4.15M (4,147,762) | 32.92K (32,924) |
| MoM Traffic Delta | +156.83K (+3.9%) | +7.67K (+30.4%) |
| Primary Market & Share | 🇺🇸 United States (22.2%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 1.82M | 13.36K |
| User Rating | 5 | 5 |
| Supported Platforms | Website | Website |

Run thousands of ready-made web scrapers and AI agents from one cloud platform
Over one hundred thousand ready-to-run scrapers and automation tools covering social media, maps, e-commerce, real estate, and general web crawling.
Connect Apify Actors directly to AI assistants and agents so they can search the store, run scrapers, and pull structured results as tool calls.
Managed proxy rotation and unblocking are built into the platform, so scrapers keep working when target sites add defenses.
An open-source crawling library plus Python and JavaScript SDKs for building custom Actors with Playwright, Puppeteer, Selenium, or Cheerio.
Open-source engineering calculators for civil and structural design
Structural, geotechnical, tunnelling and contractor tools available free and open source on GitHub.
Searchable construction datasets covering high-rise buildings, bridges, tunnels, dams and housing.
Registered users get calculation workings, bending/shear/deflection diagrams and PDF export.
Four project-based pathways in Python, AI for construction, AI governance and building AI agents.
High-efficiency open-weight and hosted reasoning AI powered by DeepSeek-V4 and R1 at ultra-low token costs.
Alibaba Cloud's 4th-generation multimodal AI assistant and foundation model lineup (Qwen4-Max, Qwen4-Plus, Qwen4-Flash & open-weight Qwen4-27B) with 1M context.
Run and build with open AI models locally or in the cloud
Meta's open model for promptable object segmentation in images and video
Google's family of lightweight, open-weight AI models
A free, open-source personal AI agent that learns your projects and works across every messaging app.
An all-in-one AI super assistant for professionals and enterprises
Open-source model and dataset hub with one-click online demos
Open-source personal AI assistant that runs on your own machine and works from chat apps