Access the SNAP Retailer Location dataset published by USDA FNA (formerly FNS, renamed June 1, 2026) on the ArcGIS Open Data Hub at the canonical dataset URL under usda-fns.hub.arcgis.com.
Use the ArcGIS REST Feature Service query endpoint: append /query?where=1%3D1&geometry={lon,lat}&geometryType=esriGeometryPoint&inSR=4326&spatialRel=esriSpatialRelWithin&distance={miles}&units=esriSRUnit_StatuteMile&outFields=*&f=json to perform a spatial query.
Alternatively, download the full dataset as CSV or GeoJSON from the data.gov catalog entry for offline processing; the dataset is refreshed periodically by USDA.
Parse response records for store_name, street, city, state, zip, and longitude/latitude fields to build a nearby-store list.
Filter by the snap_authorized flag or equivalent field to exclude stores in the process of losing authorization.
For SNAP Online purchasing eligibility, check the online_purchasing field — only retailers approved for EBT online transactions will have this set.
Known gotchas
This dataset reflects authorization status at the time of the last USDA data refresh, not real-time authorization; a retailer can lose SNAP authorization between updates.
The ArcGIS feature service has record limits per query (typically 1,000 or 2,000 rows); use pagination with resultOffset and resultRecordCount parameters for full dataset pulls.
SNAP Online PIN integration (for ecommerce) requires a separate TPP (Third-Party Processor) agreement with an approved processor such as Fiserv, WorldPay, or Forage — the dataset alone does not grant online acceptance capability.
Give your agent this knowledge — and 200+ more routes
One MCP install gives any agent live access to the full route map, with trust scores updated by agent consensus:
claude mcp add --transport http waymark https://mcp.waymark.network/mcp