diff --git a/diracx-api/src/diracx/api/jobs.py b/diracx-api/src/diracx/api/jobs.py
index 181b7b9b7..2e3a15eda 100644
--- a/diracx-api/src/diracx/api/jobs.py
+++ b/diracx-api/src/diracx/api/jobs.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-__all__ = ("create_sandbox", "download_sandbox")
+__all__ = ("create_sandbox", "download_sandbox", "submit_jobs")
 
 import hashlib
 import logging
@@ -13,6 +13,7 @@
 
 import httpx
 import zstandard
+from DIRACCommon.Core.Utilities.ClassAd.ClassAdLight import ClassAd
 
 from diracx.client.aio import AsyncDiracClient
 from diracx.client.models import SandboxInfo
@@ -123,3 +124,26 @@ async def download_sandbox(pfn: str, destination: Path, *, client: AsyncDiracCli
         with tarfile_open(fh) as tf:
             tf.extractall(path=destination, filter="data")
         logger.debug("Extracted %s to %s", pfn, destination)
+
+
+@with_client
+async def submit_jobs(jdls: list[str], *, client: AsyncDiracClient):
+    # Create and upload InputSandboxes from JDLs
+    for i, jdl in enumerate(jdls):
+        # Fix possible lack of brackets
+        if jdl.strip()[0] != "[":
+            jdl = f"[{jdl}]"
+
+        class_ad_job = ClassAd(jdl)
+        if class_ad_job.lookupAttribute("InputSandbox"):
+            isb = class_ad_job.getListFromExpression("InputSandbox")
+            sandboxes_pfn = await create_sandbox(
+                paths=[Path(file_path) for file_path in isb]
+            )
+            logging.info(f"InputSandbox created: {sandboxes_pfn[13:]}")
+            class_ad_job.set_expression("InputSandbox", {sandboxes_pfn})
+
+        jdls[i] = class_ad_job.asJDL()
+
+    jobs = await client.jobs.submit_jdl_jobs(list(jdls))
+    return jobs
diff --git a/diracx-cli/src/diracx/cli/jobs.py b/diracx-cli/src/diracx/cli/jobs.py
index 8039363d0..44fd614ad 100644
--- a/diracx-cli/src/diracx/cli/jobs.py
+++ b/diracx-cli/src/diracx/cli/jobs.py
@@ -12,6 +12,7 @@
 from rich.table import Table
 from typer import FileText, Option
 
+from diracx.api.jobs import submit_jobs
 from diracx.client.aio import AsyncDiracClient
 from diracx.core.models import ScalarSearchOperator, SearchSpec, VectorSearchOperator
 from diracx.core.preferences import OutputFormats, get_diracx_preferences
@@ -150,9 +151,10 @@ def display_rich(data, content_range: ContentRange) -> None:
 
 
 @app.async_command()
-async def submit(jdl: list[FileText]):
-    async with AsyncDiracClient() as api:
-        jobs = await api.jobs.submit_jdl_jobs([x.read() for x in jdl])
+async def submit(jdls: list[FileText]):
+    jdls_values = [jdl.read() for jdl in jdls]
+
+    jobs = await submit_jobs(jdls_values)
     print(
         f"Inserted {len(jobs)} jobs with ids: {','.join(map(str, (job.job_id for job in jobs)))}"
     )
diff --git a/diracx-logic/src/diracx/logic/jobs/sandboxes.py b/diracx-logic/src/diracx/logic/jobs/sandboxes.py
index 43856b849..f0c601cb5 100644
--- a/diracx-logic/src/diracx/logic/jobs/sandboxes.py
+++ b/diracx-logic/src/diracx/logic/jobs/sandboxes.py
@@ -153,14 +153,15 @@ async def assign_sandbox_to_job(
     job_id: int,
     pfn: str,
     sandbox_metadata_db: SandboxMetadataDB,
+    sandbox_type: Literal["input", "output"],
     settings: SandboxStoreSettings,
 ):
-    """Map the pfn as output sandbox to job."""
+    """Map the pfn as input or output sandbox to job."""
     short_pfn = pfn.split("|", 1)[-1]
     await sandbox_metadata_db.assign_sandbox_to_jobs(
         jobs_ids=[job_id],
         pfn=short_pfn,
-        sb_type=SandboxType.Output,
+        sb_type=SandboxType(sandbox_type.capitalize()),
         se_name=settings.se_name,
     )
 
diff --git a/diracx-logic/src/diracx/logic/jobs/submission.py b/diracx-logic/src/diracx/logic/jobs/submission.py
index efa2e4a60..bb60f1a38 100644
--- a/diracx-logic/src/diracx/logic/jobs/submission.py
+++ b/diracx-logic/src/diracx/logic/jobs/submission.py
@@ -184,10 +184,6 @@ async def create_jdl_jobs(jobs: list[JobSubmissionSpec], job_db: JobDB, config:
                 )
             )
 
-            # Fix possible lack of brackets
-            if original_jdl.strip()[0] != "[":
-                original_jdl = f"[{original_jdl}]"
-
             original_jdls.append(
                 (
                     original_jdl,
diff --git a/diracx-routers/src/diracx/routers/jobs/sandboxes.py b/diracx-routers/src/diracx/routers/jobs/sandboxes.py
index 15abbcfc2..b532a8a7c 100644
--- a/diracx-routers/src/diracx/routers/jobs/sandboxes.py
+++ b/diracx-routers/src/diracx/routers/jobs/sandboxes.py
@@ -129,19 +129,22 @@ async def get_job_sandbox(
     return await get_job_sandbox_bl(job_id, sandbox_metadata_db, sandbox_type)
 
 
-@router.patch("/{job_id}/sandbox/output")
+@router.patch("/{job_id}/sandbox/{sandbox_type}")
 async def assign_sandbox_to_job(
     job_id: int,
     pfn: Annotated[str, Body(max_length=256, pattern=SANDBOX_PFN_REGEX)],
+    sandbox_type: Literal["input", "output"],
     sandbox_metadata_db: SandboxMetadataDB,
     job_db: JobDB,
     settings: SandboxStoreSettings,
     check_permissions: CheckWMSPolicyCallable,
 ):
-    """Map the pfn as output sandbox to job."""
+    """Map the pfn as input or output sandbox to job."""
     await check_permissions(action=ActionType.MANAGE, job_db=job_db, job_ids=[job_id])
     try:
-        await assign_sandbox_to_job_bl(job_id, pfn, sandbox_metadata_db, settings)
+        await assign_sandbox_to_job_bl(
+            job_id, pfn, sandbox_metadata_db, sandbox_type, settings
+        )
     except SandboxNotFoundError as e:
         raise HTTPException(
             status_code=HTTPStatus.BAD_REQUEST, detail="Sandbox not found"