"US Government Open Data API Aggregator (FEC, SEC, Congress, Lobbying, USAspending)" matching MCP connectors:

OPC UA companion spec types, namespace dependencies, and engineering units for AI agents

The hardware truth contract engine for AI engineering agents. Turns raw datasheet PDFs into verified engineering contracts across 16 extraction modules, featuring deterministic spatial document mapping, IPC-compliant PCB footprints, alternate-function matrices, and zero-hallucination mathematical audits.

frontier-referenceA

so.falcon

Frontier-design reference: file formats, converters, definitions, sensors, companies, design jobs.

sheetsdata-mcpA

io.github.octoco-ltd

Electronic component datasheets for AI agents — specs, pinouts, package data on demand.

Create RF signal projects from prompts, inspect graphs, and export IQ data.

spektralwerk-docs

com.silicann

Documentation for the Spektralwerk spectrometer SCPI API as a streamable HTTP MCP Server