"Services or tools that don't require a separate API key" 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.
Polish energy performance certificates: pricing, requirements, order, documents, payment link
Find the cheapest EV charging stations in France, Benelux, and Denmark based on your specific car and charging cards.
US ISO interconnection queues and cited energy data. 25 free queries, then $49/mo or $490/yr.
Solve a DC/DC power tree: per-stage current, efficiency, dissipation, thermals, tolerance corners.
Start with analyze_ev_site(address) for a free, source-backed EV charging opportunity screen.
Sourced carbon emission factors + audit-traced calculations an AI can cite.
Real-time electricity prices, carbon intensity, and energy analytics for 41+ zones across Europe, GB, US, and Australia. Query live prices, compare zones, check gas storage, get green scores, and access advanced analytics via MCP.
Operate a network of EV charge points over OCPP: status, sessions, tariffs, prices, remote commands
Real-time electricity prices for AI agents. 40+ countries, 100+ zones. No auth required.
Browse and query the EIA API v2 — electricity, petroleum, natural gas, coal, forecasts via MCP.
Solar and home energy discovery: estimates, incentive sources, guides and contractor options.
NEC-based screening for a home EV charger: panel capacity, wire sizing, voltage drop, GA incentives.
EPC Upgrade Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a...
Three Phase Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a...
Live and historical electricity prices and demand for 25 grids; carbon intensity for GB.
Battery Storage Cost: the site's own MCP server — enquiry (enquiry = a human handoff, not a...
Texas Solar Cost Calculator: the site's own MCP server — calculator, enquiry (enquiry = a human...
Which EV Charger: the site's own MCP server — checker, enquiry (enquiry = a human handoff, not a...
Texas RRC oil & gas wellbores: API numbers, completion dates, depth, plug status
