diff --git a/.changeset/rare-dragons-sing.md b/.changeset/rare-dragons-sing.md
new file mode 100644
index 00000000..16f579d1
--- /dev/null
+++ b/.changeset/rare-dragons-sing.md
@@ -0,0 +1,5 @@
+---
+'@interledger/open-payments': minor
+---
+
+Making interact property optional for grant requests
diff --git a/packages/open-payments/src/types.ts b/packages/open-payments/src/types.ts
index 834dd0ee..8a3b4c2d 100644
--- a/packages/open-payments/src/types.ts
+++ b/packages/open-payments/src/types.ts
@@ -76,7 +76,7 @@ export type Grant = {
 export type GrantRequest = {
   access_token: ASOperations['post-request']['requestBody']['content']['application/json']['access_token']
   client: ASOperations['post-request']['requestBody']['content']['application/json']['client']
-  interact: ASOperations['post-request']['requestBody']['content']['application/json']['interact']
+  interact?: ASOperations['post-request']['requestBody']['content']['application/json']['interact']
 }
 export type GrantContinuationRequest = {
   interact_ref: ASOperations['post-continue']['requestBody']['content']['application/json']['interact_ref']