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POST
Analyze hydrologic soil groups and slope for a field boundary.
string
required
Your assigned provider identifier, matching the API key.
object
required
GeoJSON Feature with Polygon or MultiPolygon in EPSG:4326. The single-check field-boundary limits apply.

Response

The response contains soil_data (a GeoJSON FeatureCollection clipped to the field boundary), dominant_hydgrpdcd, total_area_sqm, hydgrpdcd_analysis, weighted_avg_slopegradwta, and musym_analysis. Missing hydrologic group or slope attributes can be null. This endpoint does not save a field/application. Soil may be reused across requests for the same area. The example shows summary fields; the complete response also includes field-boundary data and map-unit analysis.

Errors

Invalid field boundaries return 422 INVALID_REQUEST. A dependency failure can return 503 REQUEST_FAILED; capacity and deadline errors also apply. All routes can also return authentication, validation, rate-limit, and dependency errors. Use the error catalog and examples to choose a retry or correction. Keep X-Request-ID when present.