diff --git a/ingest/defaults/config.yaml b/ingest/defaults/config.yaml
index 4a51e7e..919b698 100644
--- a/ingest/defaults/config.yaml
+++ b/ingest/defaults/config.yaml
@@ -94,6 +94,8 @@ curate:
   output_id_field: 'genbank_accession'
   # The field in the NDJSON record that contains the actual genomic sequence
   output_sequence_field: 'sequence'
+  # The field in the NDJSON record that contains the actual GenBank accession
+  genbank_accession: 'genbank_accession'
   # The list of metadata columns to keep in the final output of the curation pipeline.
   metadata_columns: [
     'genbank_accession',
@@ -111,4 +113,5 @@ curate:
     'sra_accessions',
     'authors',
     'institution',
+    'url',
   ]
diff --git a/ingest/rules/curate.smk b/ingest/rules/curate.smk
index 2ec4ab9..d890038 100644
--- a/ingest/rules/curate.smk
+++ b/ingest/rules/curate.smk
@@ -102,9 +102,30 @@ rule curate:
         """
 
 
+rule add_metadata_columns:
+    """Add columns to metadata
+    Notable columns:
+    - [NEW] url: URL linking to the NCBI GenBank record ('https://www.ncbi.nlm.nih.gov/nuccore/*').
+    """
+    input:
+        metadata = "data/all_metadata.tsv"
+    output:
+        metadata = temp("data/all_metadata_added.tsv")
+    params:
+        accession=config['curate']['genbank_accession']
+    shell:
+        """
+        csvtk mutate2 -t \
+          -n url \
+          -e '"https://www.ncbi.nlm.nih.gov/nuccore/" + ${params.accession}' \
+          {input.metadata} \
+        > {output.metadata}
+        """
+
+
 rule subset_metadata:
     input:
-        metadata="data/all_metadata.tsv",
+        metadata="data/all_metadata_added.tsv",
     output:
         subset_metadata="results/metadata.tsv",
     params: