"A guide to PostgreSQL architecture and internals" matching MCP connectors:

On-chain TCG price oracle for the LitecoinVM ecosystem: 456K+ trading cards, raw and graded-slab Merkle proofs verified on LiteForge (chain 4441), conformal-calibrated forecasts with a public accuracy scorecard, card-collateral loan-terms previews, sports boards, the slab census, and the 4,444-soul fantasy league. 13 tools, all free, no keys.

Read-only MCP access to stepcode.dev's how-to corpus: analysis pages by tool.

Secure P2P file transfer and encrypted chat for AI agents. No accounts, no API keys.

Read-only MCP access to devplane.dev's public pages, FAQ corpus and comparisons.

Read-only Bicycle Guide registry: published guides, homes, taxonomy, capability spine. No auth.

VirusTotal reports for files, URLs, domains and IPs, plus file submission and analysis recovery.

Read-only Sales Leader Guide desk: writers roster and magazine pieces. Public, no authentication.

Read-only Get2Great magazine essays on who is good at a job, and the management-tool catalog.

Read-only EngineerPro engineering library (118 book profiles) and software-engineering tools.

Read-only MCP access to Vela's corpus of human experience: cited passages, coordinates, reading path

AnySkills online school: build courses, lessons and tests, publish, track student progress.

APIs and MCP for structured public data, web research, CAPTCHA, and source-bound data cleanup.

Video transcripts, summaries, chapters, study notes, and comparisons for AI agents.

Read-only access to a Zoopit account: orders, routes, fleet and live vehicle positions.