"Free PostgreSQL Database Solutions" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
DC Hub is the live data layer for data-center siting that agents can query and cite. Its Data Center Power Index (DCPI) scores where data centers can get grid power across 300+ markets daily. Also 330,000+ mapped power, grid, gas and fiber assets. 94 MCP tools at https://dchub.cloud/mcp plus a REST API at https://dchub.cloud/api/v1. Free tier needs no key; paid plans: dchub.cloud/pricing.
Australian NEM battery (BESS) data for AI agents: revenue, dispatch, FCAS, events. Free, no auth.
US ISO interconnection queues and cited energy data. 25 free queries, then $49/mo or $490/yr.
Start with analyze_ev_site(address) for a free, source-backed EV charging opportunity screen.
Rank Texas electricity plans by yearly cost at your own monthly kWh. Free, no account.
Carbon-accounted agent compute: free footprints; certificates backed by real offset retirement.
EV chargers near a point and charging networks in AU, NZ, US, UK and Canada. Free, no key.
Free independent solar proposal review tool for California homeowners. Audit your solar quote for pr
Use the free OKC HVAC Calculator to see whether repairing or replacing your heating or air system ma
EPW/DDY weather files - TMY/AMY/CMIP6 morphing, UHI, events, smoke. 3 of 4 tools anon-free.
Carbon MCP — UK Carbon Intensity API (free, no auth)
Open Charge Map MCP — global EV charging station database (openchargemap.io).
OpenEI Utility Rate Database (URDB) MCP
Live data-center, power-grid, interconnection-queue, fiber and natural-gas infrastructure intelligence for AI agents — query it and cite it. Streamable HTTP at https://dchub.cloud/mcp. Free tier, no signup. Every full-data response carries a CC-BY-4.0 attribution line and an as_of stamp. Coverage counts and their definitions are served, not stated here: /api/v1/canon/phrases for current quantities, /api/v1/ops/deadman for per-source ingest freshness, and dchub.cloud/bind for the integration contract. The DC Hub Gas Index (DCGI) was withdrawn 2026-08-08 rather than published wrong; live gas data remains via get_gas_intelligence.
