"Free PostgreSQL Database Solutions" matching MCP connectors:

DeepMark helps teachers deliver rapid, consistent marking with meaningful feedback for every student — in a fraction of the time. What once took a week, now takes one free period.

Free, public calculators and safety-screened DIY guides for carpet cleaning, upholstery cleaning, and limited water-damage cleanup.

Free IELTS prep: band-scored student essays and interactive Listening/Reading drills graded in-chat.

Sefaria MCP — the free digital library of Jewish texts.

Universities MCP — Hipolabs Universities API (free, no auth)

Search AI-native jobs, inspect application forms, and fetch free interview-prep resources.

Diagnose common dog behaviour problems, get program pricing, and submit the free assessment.

Free book-donation pickup logistics and first-edition identification tools for New Mexico.

Scholarship database, GPA converter, visa guidance, and cost estimator for African postgraduate students. 172 full-ride + 61 full-tuition scholarships across 32 countries, 54 nationalities, 13 grading systems. 6 tools. No auth required.

Biblical and theological research MCP server. Ask pastoral questions, run academic-grade queries across 2M+ scholarly passages (lexicons, commentaries, church fathers, Dead Sea Scrolls, Talmud), or search raw sources directly. Free, no API key required.

Browse published Bible verse collections for memorization — multilingual, free, spaced repetition

Browse Bible verse collections from Remember Me, a free memorization app in 48 languages

Solutions journalism podcast (FR): ecology, climate, society. Search, transcripts, junior versions.

Free directory of youth programs and licensed daycares in Lodi, CA. 72 tools.

Read-only MCP connector serving the Run It on AI book; index and Implementation Blocks are free.

Free, no-key Bible MCP server — 86 translations in 32 languages, from any MCP client.

Consent-scoped vault access and free verification of family-issued learning records.

Etapa is an AI cycling coach for beginners. The MCP exposes two tools: `generate_training_plan` (2-4 week plans powered by the Etapa API) and `cycling_beginner_guide` (advice on bikes, gear, safety). Free, no account.

Daily content for AI agents. History, chess, investing, wrongology, more. 10 channels. Free trial.

The most comprehensive everyday calculator MCP server — 501 tools across 22 categories covering 8 countries' tax systems (FR, BE, CH, CA, US, UK, MA, SN). Finance, health, math, science, construction, conversions, education, sport, cooking, travel, and more. Free, no API key required. Streamable HTTP transport.