"Free PostgreSQL Database Solutions" matching MCP connectors:

500+ pay-per-call tools + skill packs. USDC + USDG on 12 chains, or free via proof-of-work.

Scan/purge hidden text & score web domains: TLS, DNS, headers, speed. Free scans, $0.01 actions.

Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.

Check how much real depth Armasourcing's vetted Filipino virtual assistant pool has for a specific role, skills and timezone, and understand how hiring and engagement work. Returns aggregate pool statistics only, no candidate names, no profiles, and no pricing, and ends in a free discovery call booking.

Independent pre-transaction audit for construction estimates. Free, and every verdict recomputes.

Free real-estate underwriting, no key or account. 6 strategies, stress tests, max offer.

Dedicated static outbound IPv4 over WireGuard. Free 7-day trial, no card, no sales call.

Zillow MCP for AI agents: property data, Zestimates & listings — 300+ fields per home. Free tier.

The agent-native cloud: database, functions, AI, storage, computers. 50 tools, one API key.

See what actually settles on x402: wash-adjusted volume, payTo checks. Free, no key, no signup.

Free Vedic astrology: panchang, kundali, transits, matching, doshas, eclipses, numerology

Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.

One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.

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.

Is a wallet frozen by Tether/Circle? Free freeze checks + full history, screening & KYT. 9 chains.

Free walking tours & activities in 1,000+ cities — live availability, ratings & booking links.

Free AI-industry intelligence for agents: briefings, regulation tracker & regional lenses

Cited EU & global law, regulations & security frameworks via Ansvar Gateway. OAuth, free + paid.

An MCP server that gives any LLM or agent clean YouTube transcripts on demand: a single video, a whole channel, or a playlist, plus AI cleanup of auto-generated captions. API-key auth, credit-based, same backend as the public v1 API. Get a free API key with 25 free credits at youtubetranscriptdownload.com/account.

Structured aquarium, marine, terrarium and paludarium data for AI agents.