diff --git a/src/main/java/org/qortal/api/resource/DataResource.java b/src/main/java/org/qortal/api/resource/DataResource.java
new file mode 100644
index 00000000..ccc1547f
--- /dev/null
+++ b/src/main/java/org/qortal/api/resource/DataResource.java
@@ -0,0 +1,98 @@
+package org.qortal.api.resource;
+
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.parameters.RequestBody;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.qortal.api.ApiError;
+import org.qortal.api.ApiErrors;
+import org.qortal.api.ApiExceptionFactory;
+import org.qortal.api.Security;
+import org.qortal.repository.DataException;
+import org.qortal.repository.Repository;
+import org.qortal.repository.RepositoryManager;
+import org.qortal.settings.Settings;
+import org.qortal.storage.DataFile;
+import org.qortal.storage.DataFile.ValidationResult;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.ws.rs.Path;
+import javax.ws.rs.POST;
+import javax.ws.rs.core.Context;
+import javax.ws.rs.core.MediaType;
+
+
+@Path("/data")
+@Tag(name = "Data")
+public class DataResource {
+
+	private static final Logger LOGGER = LogManager.getLogger(DataResource.class);
+
+	@Context
+	HttpServletRequest request;
+
+	@POST
+	@Path("/upload/path")
+	@Operation(
+		summary = "Build raw, unsigned, UPLOAD_DATA transaction, based on a user-supplied file path",
+		requestBody = @RequestBody(
+				required = true,
+				content = @Content(
+						mediaType = MediaType.TEXT_PLAIN,
+						schema = @Schema(
+								type = "string", example = "qortal.jar"
+						)
+				)
+		),
+		responses = {
+			@ApiResponse(
+				description = "raw, unsigned, UPLOAD_DATA transaction encoded in Base58",
+				content = @Content(
+					mediaType = MediaType.TEXT_PLAIN,
+					schema = @Schema(
+						type = "string"
+					)
+				)
+			)
+		}
+	)
+	@ApiErrors({ApiError.REPOSITORY_ISSUE})
+	public String uploadFile(String filePath) {
+		Security.checkApiCallAllowed(request);
+
+		// It's too dangerous to allow user-supplied filenames in weaker security contexts
+		if (Settings.getInstance().isApiRestricted())
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.NON_PRODUCTION);
+
+		try (final Repository repository = RepositoryManager.getRepository()) {
+
+			DataFile dataFile = new DataFile(filePath);
+			ValidationResult validationResult = dataFile.isValid();
+			if (validationResult != DataFile.ValidationResult.OK) {
+				LOGGER.error("Invalid file: {}", validationResult);
+				throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA);
+			}
+			LOGGER.info("Whole file digest: {}", dataFile.base58Digest());
+
+			int chunkCount = dataFile.split();
+			if (chunkCount > 0) {
+				LOGGER.info(String.format("Successfully split into %d chunk%s", chunkCount, (chunkCount == 1 ? "" : "s")));
+				return "true";
+			}
+
+			return "false";
+
+		} catch (DataException e) {
+			LOGGER.error("Repository issue when uploading data", e);
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.REPOSITORY_ISSUE, e);
+		} catch (IllegalStateException e) {
+			LOGGER.error("Invalid upload data", e);
+			throw ApiExceptionFactory.INSTANCE.createException(request, ApiError.INVALID_DATA, e);
+		}
+	}
+
+}