"Free PostgreSQL Database Solutions" matching MCP connectors:
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Free mechanical checks for AI text: unnamed counts, dangling references, bad arithmetic, misquotes.
Verify AI-generated answers against real sources before anyone acts on them. Returns a trust signal plus a permanent doc number anyone can verify free at oathlayer.com/verify. Works on any AI model.
Search and read the Free Battery Factory docs (LiteShip, batpak) as live MCP tools.
Comprehensive PostgreSQL documentation and best practices, including ecosystem tools
Read-only MCP connector serving the Run It on AI book; index and Implementation Blocks are free.
AskMarcel connects AI agents to manufacturer-sourced HVAC technical documentation. • 6 MCP tools: search, procedure, error codes, product sheets, PDF snapshots, diagnose • 126 brands, 905 models, 1,885+ error codes • Free Developer tier: 500 API calls/month • Responses cite manual page numbers — see HVAC-Bench for proof vs raw LLM
Document processing, data conversion, and web content APIs for AI agents. All tools are free via MCP. Also available as a paid x402 Agent API (Stellar XLM or Solana USDC, no API key required). Tools: extract text from PDFs, merge PDFs, generate QR codes, convert CSV to/from JSON, count words/stats, and fetch + clean any public URL with Mozilla Readability.
PDF and document extraction via Google Document AI. Free trial available.