diff --git a/src/api/worker/batchjob.js b/src/api/worker/batchjob.js
index 1bfe85a..1978629 100644
--- a/src/api/worker/batchjob.js
+++ b/src/api/worker/batchjob.js
@@ -80,7 +80,7 @@ async function createSTAC(storage, job, results) {
   for(const { filepath, datacube } of results) {
     const filename = path.basename(filepath);
     const stat = await fse.stat(filepath);
-    const asset = {
+    let asset = {
       href: path.relative(folder, filepath),
       roles: ["data"],
       type: Utils.extensionToMediaType(filepath),
@@ -119,7 +119,8 @@ async function createSTAC(storage, job, results) {
       }
     }
 
-    assets[filename] = asset;
+    const params = datacube.getOutputFormatParameters();
+    assets[filename] = Object.assign(asset, params.metadata);
   }
   const item = {
     stac_version: packageInfo.stac_version,
diff --git a/src/formats/fileformat.js b/src/formats/fileformat.js
index be34e35..a812d0b 100644
--- a/src/formats/fileformat.js
+++ b/src/formats/fileformat.js
@@ -27,6 +27,12 @@ export const NAME_PARAMETER = {
   default: null
 };
 
+export const METADATA_PARAMETER = {
+  type: 'object',
+  description: 'Additional STAC metadata to be added to the exported asset(s).',
+  default: {}
+};
+
 export default class FileFormat {
 
   constructor(title, parameters = {}, description = '') {
@@ -34,6 +40,7 @@ export default class FileFormat {
     this.description = description;
     this.parameters = parameters;
     this.addParameter('name', NAME_PARAMETER);
+    this.addParameter('metadata', METADATA_PARAMETER);
   }
 
   getParameters() {