"Services or tools available for free without requiring an API key" matching MCP connectors:

Order human-run real-device app tests from your coding agent; verified bugs return as fix prompts.

ThumbnailGPT helps YouTube creators generate professional, eye-catching thumbnails using AI. Users can turn video ideas, titles, scripts, and reference images into custom thumbnails, maintain consistent facial likeness using persona references, recreate existing thumbnail styles, and customize scenes, lighting, and composition. Through MCP integration, creators can generate thumbnails directly from compatible AI assistants without switching tools.

Preise für Steinreinigung, Fugen und Heckenschnitt in Schleswig-Holstein und Hamburg.

Plans a whole trip from a total budget, every price labelled live, estimate or official.

Open EU tenders from TED scored against your CPV codes and keywords, with past winners and prices

Search pro jobs with AI exposure and layoff signals, score a résumé, look up WARN layoff notices.

Session replay as readable transcripts: rage and dead clicks, JS errors and heatmaps. Free, MIT.

Email inboxes for AI agents: wait for mail, pull out verification codes and links, reply. Free.

Tag manager with server-side conversions for GA4, Google Ads, Meta and TikTok, set up by an agent.

Cookieless web analytics an agent creates and queries: goals, funnels, revenue, SQL. Free, MIT.

Analytics, tag manager, email inboxes and session replay an AI agent sets up by itself. Free, MIT.

Google Images results in bulk: image URLs, sizes, thumbnails, and source pages, via hosted MCP.

One home for docs, live sheets, Slides, boards, API docs and DB designs, made by Humans and AI.