"USPS" matching MCP servers:

Enables an LLM to interact with the USPS EPF V2 REST Services API for listing files, requesting download manifests, streaming binary EPF files to disk, and updating file statuses.

Enables AI assistants to validate and standardize US addresses using the official USPS Address Validation API with secure OAuth2 authentication.

Enables US address verification and standardization, validating deliverability and returning USPS-standardized data, plus property enrichment with 350+ tax assessor and deed attributes for a given address.

Provides access to U.S. HUD datasets covering fair market rents, income limits, USPS vacancy data, public housing, homelessness counts, and CHAS housing statistics.

Enables looking up ZIP-to-county and county-to-ZIP relationships using HUD's official USPS ZIP Code Crosswalk API, with population-overlap filtering to handle ZIP codes crossing county lines.

An MCP server that lets LLMs query USGS NHDPlus HR hydrography data—streams, rivers, lakes, stream gages, and watershed boundaries—via point or GeoJSON geometry intersection queries.

Enables querying the USGS National Map catalog for downloadable geospatial data such as elevation, topo maps, hydrography, land cover, structures, transportation, and boundaries via dataset, product search, and point-location tools.

Provides access to the USGS Earthquake Catalog for querying earthquake events via the FDSNWS API, enabling natural language questions about earthquake data.

Enables searching and retrieving mineral deposit records from the Mineral Resources Data System. Provides tools for area-based commodity counts and full deposit details.

Query real-time and historical water data from ~8,000 USGS stream gages and groundwater wells via MCP, with 7 tools and 2 resources.

USGS Volcano MCP server providing access to volcano hazards data from the HANS-public feed without authentication.

Provides access to real-time water data from the USGS Water Services API, allowing users to fetch instantaneous measurements like stream flow, gage height, temperature, and water quality parameters from thousands of monitoring stations across the US.