
Every public fact about a US place, in one API call
Isopleth gives developers and AI agents 351 cited public-data fields for any US coordinate or address: flood, terrain, soils, power grid, sun and wind, hazards, plus parcel records in 35 states + DC. REST API and hosted MCP server. 1,000 free lookups a month.
Pace needs two or more snapshots. This launch has 1, so velocity and momentum read as unmeasured rather than zero.
A source that found nothing is a measurement. A source that has not run is a gap. Neither means the launch lacks the thing.