"MCP server that supports JAR decompilation" matching MCP connectors:

Ampworth calculatorsA

com.ampworth

UK solar PV and heat pump calculators that follow the published MCS methods. Open, no key.

DC HubA

cloud.dchub

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.