diff --git a/web/src/services/reimbursements.js b/web/src/services/reimbursements.js
index c293d9e..daf4de3 100644
--- a/web/src/services/reimbursements.js
+++ b/web/src/services/reimbursements.js
@@ -8,6 +8,46 @@ export function fetchExpenseClaimDetail(claimId) {
   return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}`)
 }
 
+export function createExpenseClaimItem(claimId, payload = {}) {
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items`, {
+    method: 'POST',
+    body: JSON.stringify(payload)
+  })
+}
+
+export function deleteExpenseClaimItem(claimId, itemId) {
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}`, {
+    method: 'DELETE'
+  })
+}
+
+export function uploadExpenseClaimItemAttachment(claimId, itemId, file) {
+  const formData = new FormData()
+  formData.append('file', file)
+
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}/attachment`, {
+    method: 'POST',
+    body: formData,
+    contentType: null
+  })
+}
+
+export function fetchExpenseClaimItemAttachmentMeta(claimId, itemId) {
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}/attachment/meta`)
+}
+
+export function fetchExpenseClaimItemAttachment(claimId, itemId) {
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}/attachment`, {
+    responseType: 'blob'
+  })
+}
+
+export function deleteExpenseClaimItemAttachment(claimId, itemId) {
+  return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}/attachment`, {
+    method: 'DELETE'
+  })
+}
+
 export function updateExpenseClaimItem(claimId, itemId, payload) {
   return apiRequest(`/reimbursements/claims/${encodeURIComponent(String(claimId || '').trim())}/items/${encodeURIComponent(String(itemId || '').trim())}`, {
     method: 'PATCH',