Agent-ready tool sites
74 sites in this index across 75 probed hosts, 7 of them transactional. Every one probed live, with the date it was checked.
Checks passed across the 75 probed hosts: Markdown negotiation 33 · Markdown twin at a predictable URL 16 · llms.txt 50 · API catalog 19 · MCP endpoint answers tools/list 29.
✓Secutils.dev secutils.dev
Open-source security toolbox for engineers and researchers offering programmable webhooks, web content tracking, digital certificate templates, and content security policy tools for application security development and testing.
security and identity✓SwipeStats www.swipestats.io
Free tool to upload Tinder or Hinge data exports for personal dating app analytics and cohort comparisons; provides anonymized datasets for research by journalists and academics.
analytics and observability✓ZeroPNG zeropng.com
Browser-based image toolkit offering 17 free tools for compression, format conversion, resizing, cropping, watermarking, metadata removal, PDF creation, Base64 encoding, SVG export, website image auditing, AI background removal, photo restoration, vectorization, and data censoring, all client-side with no uploads or
digital products✓3DLogo.io 3dlogo.io
Browser-based tool to create 3D logos, 3D coins, and 3D models from photos or prompts, with export options including PNG, GLB, and MP4, no signup required.
digital products✓AstraVerify astraverify.com
Free web tool providing Email Security and Discoverability scores for domains, analyzing DNS records and site crawlability by major AI and search crawlers, with exact fixes for email and SEO issues.
security and identity✓better-result better-result.dev
Typed, composable error handling library for TypeScript providing Result values, tagged errors, generator composition, and utilities for synchronous and asynchronous workflows.
programming languages and frameworks · EG✓CuttingToolsAI cuttingtoolsai.eu
Brand-neutral AI advisor for metal cutting tools including turning, milling, drilling inserts, solid carbide drills, end mills, reamers, taps, threading and boring tools, offering cross-brand equivalence and ISO-based recommendations.
industrial and trade supplies✓Dalfox dalfox.hahwul.com
Open-source XSS scanner and automation utility for reflected, stored, and DOM-based XSS with AST-level verification.
security and identity✓Deckodex deckodex.com
Online deckbuilder, collection tracker, and meta hub for the Gundam Card Game and Naruto Card Game, featuring tournament-derived metagame data, full card databases, deckbuilding tools, and price tracking.
gaming✓DEEPBOM deepbom.org
Local AI model artifact analyzer for ONNX, TFLite, GGUF, SafeTensors, Core ML, and ExecuTorch formats. Audits quantization, visualizes structure, exports hash-bound evidence, and supports CLI and browser-based analysis.
AI agents✓D Fetcher dfetcher.com
Vitamin D synthesis calculator providing sun exposure time needed to reach a target dose based on location, time, skin type, body area, and age, with live UV index and sunburn threshold data.
health✓EF-Map ef-map.com
Interactive 3D map and tool suite for EVE Frontier with routing, system search, intelligence queries, killboard, fitting, and infrastructure planning across 24,000+ star systems, accessible via browser on desktop and mobile.
gaming✓Epoch Calculator epochcalc.com
Free online suite of Unix epoch and timestamp conversion tools for developers, including Unix timestamp converter, epoch math, ISO 8601 parsing, cron expression testing, timezone conversion, world clock, and meeting planner.
developer platforms✓Equation.io equation.io
Free in-browser graphing calculator plotting 2D curves, inequalities, scalar and vector fields, ODEs, complex functions, 3D surfaces, parametric curves, plane geometry, symbolic derivatives and integrals, and random variables with shaded probabilities.
software development services✓EroSearch erosearch.net
EroSearch provides fast search and browsing of Erome albums with no pop-ups.
album search engine✓ExplorersMap explorersmap.net
Free interactive world map to track visited countries, regions, and cities worldwide; build public travel profiles; play geography games; and connect AI assistants for trip planning and marking visits.
travel✓FindMeTool findmetool.com
Browser-based free developer utilities including JSON/YAML/XML formatters, QR code generator, word counter, reading time calculator, and Unix timestamp converter, all client-side and privacy-friendly.
developer platforms✓FitLLM fitllm.run
Auditable calculator estimating if local LLMs fit on NVIDIA GPUs or Apple Silicon Macs by modeling memory use including weights, KV cache, and runtime overhead for architectures like Gemma 4, Qwen 3.6, and GLM families.
software development services✓FuelCenter fuelcenter.co
Online tools for marathon runners including personalized minute-by-minute fueling plans, pace calculators, hydration, carb loading, heat adjustment, race time prediction, and gel comparison, covering major marathons worldwide.
fitness✓MusicDNA getmusicdna.com
MusicDNA is a web app that analyzes audio tracks in-browser to generate interactive visualizations of rhythm, energy, spectrum, harmony, structure, and mood, with local audio processing and no uploads or accounts.
digital products✓headers.dev headers.dev
Website providing an HTTP headers analyzer tool that scores URLs from 0 to 10 with security and performance recommendations.
security and identity✓InkStory inkstory.app
InkStory is a mobile app that links audio to tattoos, allowing users to design tattoos from sound and find tattoo artists worldwide.
tattoo design app✓IP Address API ip.app
Free API providing caller's public IP address, ASN, geolocation, timezone, user-agent, request headers, and connection security details with multiple response formats and no ads or trackers.
search and data APIs✓Jinero jinero.online
Browser-based platform offering 40+ free tools for designers, developers, and content creators including image editing, font management, icon libraries, color palettes, and code utilities with API and Figma plugin integration.
developer platforms✓KinkPerf kinkperf.com
KinkPerf allows users to create, save, share, compare, and export private unlisted kinklists.
kinklist creation tool