diff --git a/generate-routes.ts b/generate-routes.ts
index 0dd12d35..730382de 100644
--- a/generate-routes.ts
+++ b/generate-routes.ts
@@ -78,6 +78,7 @@ interface Endpoint {
   resource: string | null
   method: Method
   requestFormat: 'params' | 'body'
+  isRequestParamOptional: boolean
 }
 
 type Method = 'GET' | 'POST'
@@ -147,6 +148,9 @@ const createEndpoint = (
     method,
     resource: deriveResource(endpointPath, method),
     requestFormat: ['GET', 'DELETE'].includes(method) ? 'params' : 'body',
+    // UPSTREAM: This could be derived from the OpenAPI spec, however some endpoints require at least one param,
+    // and in the spec this currently looks as if params are optional.
+    isRequestParamOptional: true,
   }
 }
 
@@ -298,11 +302,10 @@ const renderClassMethod = ({
   namespace,
   resource,
   path,
+  isRequestParamOptional,
 }: Endpoint): string => `
   async ${camelCase(name)}(
-    ${requestFormat}${
-      requestFormat === 'params' ? '?' : ''
-    }: ${renderRequestType({
+    ${requestFormat}${isRequestParamOptional ? '?' : ''}: ${renderRequestType({
       name,
       namespace,
     })},
diff --git a/src/lib/seam/connect/routes/access-codes-unmanaged.ts b/src/lib/seam/connect/routes/access-codes-unmanaged.ts
index d0f26eaf..6f8c94bd 100644
--- a/src/lib/seam/connect/routes/access-codes-unmanaged.ts
+++ b/src/lib/seam/connect/routes/access-codes-unmanaged.ts
@@ -83,7 +83,7 @@ export class SeamHttpAccessCodesUnmanaged {
   }
 
   async convertToManaged(
-    body: AccessCodesUnmanagedConvertToManagedBody,
+    body?: AccessCodesUnmanagedConvertToManagedBody,
   ): Promise<void> {
     await this.client.request<AccessCodesUnmanagedConvertToManagedResponse>({
       url: '/access_codes/unmanaged/convert_to_managed',
@@ -92,7 +92,7 @@ export class SeamHttpAccessCodesUnmanaged {
     })
   }
 
-  async delete(body: AccessCodesUnmanagedDeleteBody): Promise<void> {
+  async delete(body?: AccessCodesUnmanagedDeleteBody): Promise<void> {
     await this.client.request<AccessCodesUnmanagedDeleteResponse>({
       url: '/access_codes/unmanaged/delete',
       method: 'post',
@@ -101,7 +101,7 @@ export class SeamHttpAccessCodesUnmanaged {
   }
 
   async get(
-    body: AccessCodesUnmanagedGetParams,
+    body?: AccessCodesUnmanagedGetParams,
   ): Promise<AccessCodesUnmanagedGetResponse['access_code']> {
     const { data } = await this.client.request<AccessCodesUnmanagedGetResponse>(
       {
@@ -114,7 +114,7 @@ export class SeamHttpAccessCodesUnmanaged {
   }
 
   async list(
-    body: AccessCodesUnmanagedListParams,
+    body?: AccessCodesUnmanagedListParams,
   ): Promise<AccessCodesUnmanagedListResponse['access_codes']> {
     const { data } =
       await this.client.request<AccessCodesUnmanagedListResponse>({
@@ -125,7 +125,7 @@ export class SeamHttpAccessCodesUnmanaged {
     return data.access_codes
   }
 
-  async update(body: AccessCodesUnmanagedUpdateBody): Promise<void> {
+  async update(body?: AccessCodesUnmanagedUpdateBody): Promise<void> {
     await this.client.request<AccessCodesUnmanagedUpdateResponse>({
       url: '/access_codes/unmanaged/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/access-codes.ts b/src/lib/seam/connect/routes/access-codes.ts
index 53bffa9f..b24e712d 100644
--- a/src/lib/seam/connect/routes/access-codes.ts
+++ b/src/lib/seam/connect/routes/access-codes.ts
@@ -88,7 +88,7 @@ export class SeamHttpAccessCodes {
   }
 
   async create(
-    body: AccessCodesCreateBody,
+    body?: AccessCodesCreateBody,
   ): Promise<AccessCodesCreateResponse['access_code']> {
     const { data } = await this.client.request<AccessCodesCreateResponse>({
       url: '/access_codes/create',
@@ -99,7 +99,7 @@ export class SeamHttpAccessCodes {
   }
 
   async createMultiple(
-    body: AccessCodesCreateMultipleBody,
+    body?: AccessCodesCreateMultipleBody,
   ): Promise<AccessCodesCreateMultipleResponse['access_codes']> {
     const { data } =
       await this.client.request<AccessCodesCreateMultipleResponse>({
@@ -110,7 +110,7 @@ export class SeamHttpAccessCodes {
     return data.access_codes
   }
 
-  async delete(body: AccessCodesDeleteBody): Promise<void> {
+  async delete(body?: AccessCodesDeleteBody): Promise<void> {
     await this.client.request<AccessCodesDeleteResponse>({
       url: '/access_codes/delete',
       method: 'post',
@@ -119,7 +119,7 @@ export class SeamHttpAccessCodes {
   }
 
   async generateCode(
-    body: AccessCodesGenerateCodeBody,
+    body?: AccessCodesGenerateCodeBody,
   ): Promise<AccessCodesGenerateCodeResponse['generated_code']> {
     const { data } = await this.client.request<AccessCodesGenerateCodeResponse>(
       {
@@ -132,7 +132,7 @@ export class SeamHttpAccessCodes {
   }
 
   async get(
-    body: AccessCodesGetParams,
+    body?: AccessCodesGetParams,
   ): Promise<AccessCodesGetResponse['access_code']> {
     const { data } = await this.client.request<AccessCodesGetResponse>({
       url: '/access_codes/get',
@@ -143,7 +143,7 @@ export class SeamHttpAccessCodes {
   }
 
   async list(
-    body: AccessCodesListParams,
+    body?: AccessCodesListParams,
   ): Promise<AccessCodesListResponse['access_codes']> {
     const { data } = await this.client.request<AccessCodesListResponse>({
       url: '/access_codes/list',
@@ -154,7 +154,7 @@ export class SeamHttpAccessCodes {
   }
 
   async pullBackupAccessCode(
-    body: AccessCodesPullBackupAccessCodeBody,
+    body?: AccessCodesPullBackupAccessCodeBody,
   ): Promise<AccessCodesPullBackupAccessCodeResponse['backup_access_code']> {
     const { data } =
       await this.client.request<AccessCodesPullBackupAccessCodeResponse>({
@@ -165,7 +165,7 @@ export class SeamHttpAccessCodes {
     return data.backup_access_code
   }
 
-  async update(body: AccessCodesUpdateBody): Promise<void> {
+  async update(body?: AccessCodesUpdateBody): Promise<void> {
     await this.client.request<AccessCodesUpdateResponse>({
       url: '/access_codes/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/acs-access-groups.ts b/src/lib/seam/connect/routes/acs-access-groups.ts
index 3cca37d8..ac61f438 100644
--- a/src/lib/seam/connect/routes/acs-access-groups.ts
+++ b/src/lib/seam/connect/routes/acs-access-groups.ts
@@ -82,7 +82,7 @@ export class SeamHttpAcsAccessGroups {
     return SeamHttpAcsAccessGroups.fromClientSessionToken(token, options)
   }
 
-  async addUser(body: AcsAccessGroupsAddUserBody): Promise<void> {
+  async addUser(body?: AcsAccessGroupsAddUserBody): Promise<void> {
     await this.client.request<AcsAccessGroupsAddUserResponse>({
       url: '/acs/access_groups/add_user',
       method: 'post',
@@ -91,7 +91,7 @@ export class SeamHttpAcsAccessGroups {
   }
 
   async create(
-    body: AcsAccessGroupsCreateBody,
+    body?: AcsAccessGroupsCreateBody,
   ): Promise<AcsAccessGroupsCreateResponse['acs_access_group']> {
     const { data } = await this.client.request<AcsAccessGroupsCreateResponse>({
       url: '/acs/access_groups/create',
@@ -101,7 +101,7 @@ export class SeamHttpAcsAccessGroups {
     return data.acs_access_group
   }
 
-  async delete(body: AcsAccessGroupsDeleteBody): Promise<void> {
+  async delete(body?: AcsAccessGroupsDeleteBody): Promise<void> {
     await this.client.request<AcsAccessGroupsDeleteResponse>({
       url: '/acs/access_groups/delete',
       method: 'post',
@@ -110,7 +110,7 @@ export class SeamHttpAcsAccessGroups {
   }
 
   async get(
-    body: AcsAccessGroupsGetParams,
+    body?: AcsAccessGroupsGetParams,
   ): Promise<AcsAccessGroupsGetResponse['acs_access_group']> {
     const { data } = await this.client.request<AcsAccessGroupsGetResponse>({
       url: '/acs/access_groups/get',
@@ -121,7 +121,7 @@ export class SeamHttpAcsAccessGroups {
   }
 
   async list(
-    body: AcsAccessGroupsListParams,
+    body?: AcsAccessGroupsListParams,
   ): Promise<AcsAccessGroupsListResponse['acs_access_groups']> {
     const { data } = await this.client.request<AcsAccessGroupsListResponse>({
       url: '/acs/access_groups/list',
@@ -132,7 +132,7 @@ export class SeamHttpAcsAccessGroups {
   }
 
   async listUsers(
-    body: AcsAccessGroupsListUsersParams,
+    body?: AcsAccessGroupsListUsersParams,
   ): Promise<AcsAccessGroupsListUsersResponse['acs_users']> {
     const { data } =
       await this.client.request<AcsAccessGroupsListUsersResponse>({
@@ -143,7 +143,7 @@ export class SeamHttpAcsAccessGroups {
     return data.acs_users
   }
 
-  async removeUser(body: AcsAccessGroupsRemoveUserBody): Promise<void> {
+  async removeUser(body?: AcsAccessGroupsRemoveUserBody): Promise<void> {
     await this.client.request<AcsAccessGroupsRemoveUserResponse>({
       url: '/acs/access_groups/remove_user',
       method: 'post',
@@ -151,7 +151,7 @@ export class SeamHttpAcsAccessGroups {
     })
   }
 
-  async update(body: AcsAccessGroupsUpdateBody): Promise<void> {
+  async update(body?: AcsAccessGroupsUpdateBody): Promise<void> {
     await this.client.request<AcsAccessGroupsUpdateResponse>({
       url: '/acs/access_groups/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/acs-credentials.ts b/src/lib/seam/connect/routes/acs-credentials.ts
index 988d85bd..75260dd2 100644
--- a/src/lib/seam/connect/routes/acs-credentials.ts
+++ b/src/lib/seam/connect/routes/acs-credentials.ts
@@ -83,7 +83,7 @@ export class SeamHttpAcsCredentials {
   }
 
   async create(
-    body: AcsCredentialsCreateBody,
+    body?: AcsCredentialsCreateBody,
   ): Promise<AcsCredentialsCreateResponse['acs_credential']> {
     const { data } = await this.client.request<AcsCredentialsCreateResponse>({
       url: '/acs/credentials/create',
@@ -93,7 +93,7 @@ export class SeamHttpAcsCredentials {
     return data.acs_credential
   }
 
-  async delete(body: AcsCredentialsDeleteBody): Promise<void> {
+  async delete(body?: AcsCredentialsDeleteBody): Promise<void> {
     await this.client.request<AcsCredentialsDeleteResponse>({
       url: '/acs/credentials/delete',
       method: 'post',
@@ -102,7 +102,7 @@ export class SeamHttpAcsCredentials {
   }
 
   async get(
-    body: AcsCredentialsGetParams,
+    body?: AcsCredentialsGetParams,
   ): Promise<AcsCredentialsGetResponse['acs_credential']> {
     const { data } = await this.client.request<AcsCredentialsGetResponse>({
       url: '/acs/credentials/get',
@@ -113,7 +113,7 @@ export class SeamHttpAcsCredentials {
   }
 
   async list(
-    body: AcsCredentialsListParams,
+    body?: AcsCredentialsListParams,
   ): Promise<AcsCredentialsListResponse['acs_credentials']> {
     const { data } = await this.client.request<AcsCredentialsListResponse>({
       url: '/acs/credentials/list',
diff --git a/src/lib/seam/connect/routes/acs-systems.ts b/src/lib/seam/connect/routes/acs-systems.ts
index a23b6653..4c4d3957 100644
--- a/src/lib/seam/connect/routes/acs-systems.ts
+++ b/src/lib/seam/connect/routes/acs-systems.ts
@@ -83,7 +83,7 @@ export class SeamHttpAcsSystems {
   }
 
   async get(
-    body: AcsSystemsGetParams,
+    body?: AcsSystemsGetParams,
   ): Promise<AcsSystemsGetResponse['acs_system']> {
     const { data } = await this.client.request<AcsSystemsGetResponse>({
       url: '/acs/systems/get',
@@ -94,7 +94,7 @@ export class SeamHttpAcsSystems {
   }
 
   async list(
-    body: AcsSystemsListParams,
+    body?: AcsSystemsListParams,
   ): Promise<AcsSystemsListResponse['acs_systems']> {
     const { data } = await this.client.request<AcsSystemsListResponse>({
       url: '/acs/systems/list',
diff --git a/src/lib/seam/connect/routes/acs-users.ts b/src/lib/seam/connect/routes/acs-users.ts
index b51ad852..9c457210 100644
--- a/src/lib/seam/connect/routes/acs-users.ts
+++ b/src/lib/seam/connect/routes/acs-users.ts
@@ -82,7 +82,7 @@ export class SeamHttpAcsUsers {
     return SeamHttpAcsUsers.fromClientSessionToken(token, options)
   }
 
-  async addToAccessGroup(body: AcsUsersAddToAccessGroupBody): Promise<void> {
+  async addToAccessGroup(body?: AcsUsersAddToAccessGroupBody): Promise<void> {
     await this.client.request<AcsUsersAddToAccessGroupResponse>({
       url: '/acs/users/add_to_access_group',
       method: 'post',
@@ -91,7 +91,7 @@ export class SeamHttpAcsUsers {
   }
 
   async create(
-    body: AcsUsersCreateBody,
+    body?: AcsUsersCreateBody,
   ): Promise<AcsUsersCreateResponse['acs_user']> {
     const { data } = await this.client.request<AcsUsersCreateResponse>({
       url: '/acs/users/create',
@@ -101,7 +101,7 @@ export class SeamHttpAcsUsers {
     return data.acs_user
   }
 
-  async delete(body: AcsUsersDeleteBody): Promise<void> {
+  async delete(body?: AcsUsersDeleteBody): Promise<void> {
     await this.client.request<AcsUsersDeleteResponse>({
       url: '/acs/users/delete',
       method: 'post',
@@ -109,7 +109,9 @@ export class SeamHttpAcsUsers {
     })
   }
 
-  async get(body: AcsUsersGetParams): Promise<AcsUsersGetResponse['acs_user']> {
+  async get(
+    body?: AcsUsersGetParams,
+  ): Promise<AcsUsersGetResponse['acs_user']> {
     const { data } = await this.client.request<AcsUsersGetResponse>({
       url: '/acs/users/get',
       method: 'post',
@@ -119,7 +121,7 @@ export class SeamHttpAcsUsers {
   }
 
   async list(
-    body: AcsUsersListParams,
+    body?: AcsUsersListParams,
   ): Promise<AcsUsersListResponse['acs_users']> {
     const { data } = await this.client.request<AcsUsersListResponse>({
       url: '/acs/users/list',
@@ -130,7 +132,7 @@ export class SeamHttpAcsUsers {
   }
 
   async removeFromAccessGroup(
-    body: AcsUsersRemoveFromAccessGroupBody,
+    body?: AcsUsersRemoveFromAccessGroupBody,
   ): Promise<void> {
     await this.client.request<AcsUsersRemoveFromAccessGroupResponse>({
       url: '/acs/users/remove_from_access_group',
@@ -139,7 +141,7 @@ export class SeamHttpAcsUsers {
     })
   }
 
-  async suspend(body: AcsUsersSuspendBody): Promise<void> {
+  async suspend(body?: AcsUsersSuspendBody): Promise<void> {
     await this.client.request<AcsUsersSuspendResponse>({
       url: '/acs/users/suspend',
       method: 'post',
@@ -147,7 +149,7 @@ export class SeamHttpAcsUsers {
     })
   }
 
-  async unsuspend(body: AcsUsersUnsuspendBody): Promise<void> {
+  async unsuspend(body?: AcsUsersUnsuspendBody): Promise<void> {
     await this.client.request<AcsUsersUnsuspendResponse>({
       url: '/acs/users/unsuspend',
       method: 'post',
@@ -155,7 +157,7 @@ export class SeamHttpAcsUsers {
     })
   }
 
-  async update(body: AcsUsersUpdateBody): Promise<void> {
+  async update(body?: AcsUsersUpdateBody): Promise<void> {
     await this.client.request<AcsUsersUpdateResponse>({
       url: '/acs/users/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/action-attempts.ts b/src/lib/seam/connect/routes/action-attempts.ts
index 42e1cea4..809c9617 100644
--- a/src/lib/seam/connect/routes/action-attempts.ts
+++ b/src/lib/seam/connect/routes/action-attempts.ts
@@ -83,7 +83,7 @@ export class SeamHttpActionAttempts {
   }
 
   async get(
-    body: ActionAttemptsGetParams,
+    body?: ActionAttemptsGetParams,
   ): Promise<ActionAttemptsGetResponse['action_attempt']> {
     const { data } = await this.client.request<ActionAttemptsGetResponse>({
       url: '/action_attempts/get',
@@ -94,7 +94,7 @@ export class SeamHttpActionAttempts {
   }
 
   async list(
-    body: ActionAttemptsListParams,
+    body?: ActionAttemptsListParams,
   ): Promise<ActionAttemptsListResponse['action_attempts']> {
     const { data } = await this.client.request<ActionAttemptsListResponse>({
       url: '/action_attempts/list',
diff --git a/src/lib/seam/connect/routes/client-sessions.ts b/src/lib/seam/connect/routes/client-sessions.ts
index b4a00bdc..8eb7afb2 100644
--- a/src/lib/seam/connect/routes/client-sessions.ts
+++ b/src/lib/seam/connect/routes/client-sessions.ts
@@ -81,7 +81,7 @@ export class SeamHttpClientSessions {
   }
 
   async create(
-    body: ClientSessionsCreateBody,
+    body?: ClientSessionsCreateBody,
   ): Promise<ClientSessionsCreateResponse['client_session']> {
     const { data } = await this.client.request<ClientSessionsCreateResponse>({
       url: '/client_sessions/create',
@@ -91,7 +91,7 @@ export class SeamHttpClientSessions {
     return data.client_session
   }
 
-  async delete(body: ClientSessionsDeleteBody): Promise<void> {
+  async delete(body?: ClientSessionsDeleteBody): Promise<void> {
     await this.client.request<ClientSessionsDeleteResponse>({
       url: '/client_sessions/delete',
       method: 'post',
@@ -100,7 +100,7 @@ export class SeamHttpClientSessions {
   }
 
   async get(
-    body: ClientSessionsGetParams,
+    body?: ClientSessionsGetParams,
   ): Promise<ClientSessionsGetResponse['client_session']> {
     const { data } = await this.client.request<ClientSessionsGetResponse>({
       url: '/client_sessions/get',
@@ -111,7 +111,7 @@ export class SeamHttpClientSessions {
   }
 
   async getOrCreate(
-    body: ClientSessionsGetOrCreateBody,
+    body?: ClientSessionsGetOrCreateBody,
   ): Promise<ClientSessionsGetOrCreateResponse['client_session']> {
     const { data } =
       await this.client.request<ClientSessionsGetOrCreateResponse>({
@@ -123,7 +123,7 @@ export class SeamHttpClientSessions {
   }
 
   async grantAccess(
-    body: ClientSessionsGrantAccessBody,
+    body?: ClientSessionsGrantAccessBody,
   ): Promise<ClientSessionsGrantAccessResponse['client_session']> {
     const { data } =
       await this.client.request<ClientSessionsGrantAccessResponse>({
@@ -135,7 +135,7 @@ export class SeamHttpClientSessions {
   }
 
   async list(
-    body: ClientSessionsListParams,
+    body?: ClientSessionsListParams,
   ): Promise<ClientSessionsListResponse['client_sessions']> {
     const { data } = await this.client.request<ClientSessionsListResponse>({
       url: '/client_sessions/list',
diff --git a/src/lib/seam/connect/routes/connect-webviews.ts b/src/lib/seam/connect/routes/connect-webviews.ts
index 50f21440..486ca77d 100644
--- a/src/lib/seam/connect/routes/connect-webviews.ts
+++ b/src/lib/seam/connect/routes/connect-webviews.ts
@@ -87,7 +87,7 @@ export class SeamHttpConnectWebviews {
   }
 
   async create(
-    body: ConnectWebviewsCreateBody,
+    body?: ConnectWebviewsCreateBody,
   ): Promise<ConnectWebviewsCreateResponse['connect_webview']> {
     const { data } = await this.client.request<ConnectWebviewsCreateResponse>({
       url: '/connect_webviews/create',
@@ -97,7 +97,7 @@ export class SeamHttpConnectWebviews {
     return data.connect_webview
   }
 
-  async delete(body: ConnectWebviewsDeleteBody): Promise<void> {
+  async delete(body?: ConnectWebviewsDeleteBody): Promise<void> {
     await this.client.request<ConnectWebviewsDeleteResponse>({
       url: '/connect_webviews/delete',
       method: 'post',
@@ -106,7 +106,7 @@ export class SeamHttpConnectWebviews {
   }
 
   async get(
-    body: ConnectWebviewsGetParams,
+    body?: ConnectWebviewsGetParams,
   ): Promise<ConnectWebviewsGetResponse['connect_webview']> {
     const { data } = await this.client.request<ConnectWebviewsGetResponse>({
       url: '/connect_webviews/get',
@@ -117,7 +117,7 @@ export class SeamHttpConnectWebviews {
   }
 
   async list(
-    body: ConnectWebviewsListParams,
+    body?: ConnectWebviewsListParams,
   ): Promise<ConnectWebviewsListResponse['connect_webviews']> {
     const { data } = await this.client.request<ConnectWebviewsListResponse>({
       url: '/connect_webviews/list',
diff --git a/src/lib/seam/connect/routes/connected-accounts.ts b/src/lib/seam/connect/routes/connected-accounts.ts
index e301ddce..8a756d81 100644
--- a/src/lib/seam/connect/routes/connected-accounts.ts
+++ b/src/lib/seam/connect/routes/connected-accounts.ts
@@ -86,7 +86,7 @@ export class SeamHttpConnectedAccounts {
     return SeamHttpConnectedAccounts.fromClientSessionToken(token, options)
   }
 
-  async delete(body: ConnectedAccountsDeleteBody): Promise<void> {
+  async delete(body?: ConnectedAccountsDeleteBody): Promise<void> {
     await this.client.request<ConnectedAccountsDeleteResponse>({
       url: '/connected_accounts/delete',
       method: 'post',
@@ -95,7 +95,7 @@ export class SeamHttpConnectedAccounts {
   }
 
   async get(
-    body: ConnectedAccountsGetParams,
+    body?: ConnectedAccountsGetParams,
   ): Promise<ConnectedAccountsGetResponse['connected_account']> {
     const { data } = await this.client.request<ConnectedAccountsGetResponse>({
       url: '/connected_accounts/get',
diff --git a/src/lib/seam/connect/routes/devices-unmanaged.ts b/src/lib/seam/connect/routes/devices-unmanaged.ts
index 92dbe8f6..91466f58 100644
--- a/src/lib/seam/connect/routes/devices-unmanaged.ts
+++ b/src/lib/seam/connect/routes/devices-unmanaged.ts
@@ -83,7 +83,7 @@ export class SeamHttpDevicesUnmanaged {
   }
 
   async get(
-    body: DevicesUnmanagedGetParams,
+    body?: DevicesUnmanagedGetParams,
   ): Promise<DevicesUnmanagedGetResponse['device']> {
     const { data } = await this.client.request<DevicesUnmanagedGetResponse>({
       url: '/devices/unmanaged/get',
@@ -94,7 +94,7 @@ export class SeamHttpDevicesUnmanaged {
   }
 
   async list(
-    body: DevicesUnmanagedListParams,
+    body?: DevicesUnmanagedListParams,
   ): Promise<DevicesUnmanagedListResponse['devices']> {
     const { data } = await this.client.request<DevicesUnmanagedListResponse>({
       url: '/devices/unmanaged/list',
@@ -104,7 +104,7 @@ export class SeamHttpDevicesUnmanaged {
     return data.devices
   }
 
-  async update(body: DevicesUnmanagedUpdateBody): Promise<void> {
+  async update(body?: DevicesUnmanagedUpdateBody): Promise<void> {
     await this.client.request<DevicesUnmanagedUpdateResponse>({
       url: '/devices/unmanaged/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/devices.ts b/src/lib/seam/connect/routes/devices.ts
index 09f384e5..de4e3ad2 100644
--- a/src/lib/seam/connect/routes/devices.ts
+++ b/src/lib/seam/connect/routes/devices.ts
@@ -87,7 +87,7 @@ export class SeamHttpDevices {
     return SeamHttpDevicesUnmanaged.fromClient(this.client)
   }
 
-  async delete(body: DevicesDeleteBody): Promise<void> {
+  async delete(body?: DevicesDeleteBody): Promise<void> {
     await this.client.request<DevicesDeleteResponse>({
       url: '/devices/delete',
       method: 'post',
@@ -95,7 +95,7 @@ export class SeamHttpDevices {
     })
   }
 
-  async get(body: DevicesGetParams): Promise<DevicesGetResponse['device']> {
+  async get(body?: DevicesGetParams): Promise<DevicesGetResponse['device']> {
     const { data } = await this.client.request<DevicesGetResponse>({
       url: '/devices/get',
       method: 'post',
@@ -104,7 +104,9 @@ export class SeamHttpDevices {
     return data.device
   }
 
-  async list(body: DevicesListParams): Promise<DevicesListResponse['devices']> {
+  async list(
+    body?: DevicesListParams,
+  ): Promise<DevicesListResponse['devices']> {
     const { data } = await this.client.request<DevicesListResponse>({
       url: '/devices/list',
       method: 'post',
@@ -114,7 +116,7 @@ export class SeamHttpDevices {
   }
 
   async listDeviceProviders(
-    body: DevicesListDeviceProvidersParams,
+    body?: DevicesListDeviceProvidersParams,
   ): Promise<DevicesListDeviceProvidersResponse['device_providers']> {
     const { data } =
       await this.client.request<DevicesListDeviceProvidersResponse>({
@@ -125,7 +127,7 @@ export class SeamHttpDevices {
     return data.device_providers
   }
 
-  async update(body: DevicesUpdateBody): Promise<void> {
+  async update(body?: DevicesUpdateBody): Promise<void> {
     await this.client.request<DevicesUpdateResponse>({
       url: '/devices/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/events.ts b/src/lib/seam/connect/routes/events.ts
index e30957db..489e6897 100644
--- a/src/lib/seam/connect/routes/events.ts
+++ b/src/lib/seam/connect/routes/events.ts
@@ -82,7 +82,7 @@ export class SeamHttpEvents {
     return SeamHttpEvents.fromClientSessionToken(token, options)
   }
 
-  async get(body: EventsGetParams): Promise<EventsGetResponse['event']> {
+  async get(body?: EventsGetParams): Promise<EventsGetResponse['event']> {
     const { data } = await this.client.request<EventsGetResponse>({
       url: '/events/get',
       method: 'post',
@@ -91,7 +91,7 @@ export class SeamHttpEvents {
     return data.event
   }
 
-  async list(body: EventsListParams): Promise<EventsListResponse['events']> {
+  async list(body?: EventsListParams): Promise<EventsListResponse['events']> {
     const { data } = await this.client.request<EventsListResponse>({
       url: '/events/list',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/locks.ts b/src/lib/seam/connect/routes/locks.ts
index 0c3f061e..ca481534 100644
--- a/src/lib/seam/connect/routes/locks.ts
+++ b/src/lib/seam/connect/routes/locks.ts
@@ -82,7 +82,7 @@ export class SeamHttpLocks {
     return SeamHttpLocks.fromClientSessionToken(token, options)
   }
 
-  async get(body: LocksGetParams): Promise<LocksGetResponse['device']> {
+  async get(body?: LocksGetParams): Promise<LocksGetResponse['device']> {
     const { data } = await this.client.request<LocksGetResponse>({
       url: '/locks/get',
       method: 'post',
@@ -91,7 +91,7 @@ export class SeamHttpLocks {
     return data.device
   }
 
-  async list(body: LocksListParams): Promise<LocksListResponse['devices']> {
+  async list(body?: LocksListParams): Promise<LocksListResponse['devices']> {
     const { data } = await this.client.request<LocksListResponse>({
       url: '/locks/list',
       method: 'post',
@@ -101,7 +101,7 @@ export class SeamHttpLocks {
   }
 
   async lockDoor(
-    body: LocksLockDoorBody,
+    body?: LocksLockDoorBody,
   ): Promise<LocksLockDoorResponse['action_attempt']> {
     const { data } = await this.client.request<LocksLockDoorResponse>({
       url: '/locks/lock_door',
@@ -112,7 +112,7 @@ export class SeamHttpLocks {
   }
 
   async unlockDoor(
-    body: LocksUnlockDoorBody,
+    body?: LocksUnlockDoorBody,
   ): Promise<LocksUnlockDoorResponse['action_attempt']> {
     const { data } = await this.client.request<LocksUnlockDoorResponse>({
       url: '/locks/unlock_door',
diff --git a/src/lib/seam/connect/routes/noise-sensors-noise-thresholds.ts b/src/lib/seam/connect/routes/noise-sensors-noise-thresholds.ts
index 6efb61a2..24f3e5b9 100644
--- a/src/lib/seam/connect/routes/noise-sensors-noise-thresholds.ts
+++ b/src/lib/seam/connect/routes/noise-sensors-noise-thresholds.ts
@@ -85,7 +85,7 @@ export class SeamHttpNoiseSensorsNoiseThresholds {
     )
   }
 
-  async create(body: NoiseSensorsNoiseThresholdsCreateBody): Promise<void> {
+  async create(body?: NoiseSensorsNoiseThresholdsCreateBody): Promise<void> {
     await this.client.request<NoiseSensorsNoiseThresholdsCreateResponse>({
       url: '/noise_sensors/noise_thresholds/create',
       method: 'post',
@@ -93,7 +93,7 @@ export class SeamHttpNoiseSensorsNoiseThresholds {
     })
   }
 
-  async delete(body: NoiseSensorsNoiseThresholdsDeleteBody): Promise<void> {
+  async delete(body?: NoiseSensorsNoiseThresholdsDeleteBody): Promise<void> {
     await this.client.request<NoiseSensorsNoiseThresholdsDeleteResponse>({
       url: '/noise_sensors/noise_thresholds/delete',
       method: 'post',
@@ -102,7 +102,7 @@ export class SeamHttpNoiseSensorsNoiseThresholds {
   }
 
   async get(
-    body: NoiseSensorsNoiseThresholdsGetParams,
+    body?: NoiseSensorsNoiseThresholdsGetParams,
   ): Promise<NoiseSensorsNoiseThresholdsGetResponse['noise_threshold']> {
     const { data } =
       await this.client.request<NoiseSensorsNoiseThresholdsGetResponse>({
@@ -114,7 +114,7 @@ export class SeamHttpNoiseSensorsNoiseThresholds {
   }
 
   async list(
-    body: NoiseSensorsNoiseThresholdsListParams,
+    body?: NoiseSensorsNoiseThresholdsListParams,
   ): Promise<NoiseSensorsNoiseThresholdsListResponse['noise_thresholds']> {
     const { data } =
       await this.client.request<NoiseSensorsNoiseThresholdsListResponse>({
@@ -125,7 +125,7 @@ export class SeamHttpNoiseSensorsNoiseThresholds {
     return data.noise_thresholds
   }
 
-  async update(body: NoiseSensorsNoiseThresholdsUpdateBody): Promise<void> {
+  async update(body?: NoiseSensorsNoiseThresholdsUpdateBody): Promise<void> {
     await this.client.request<NoiseSensorsNoiseThresholdsUpdateResponse>({
       url: '/noise_sensors/noise_thresholds/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/thermostats-climate-setting-schedules.ts b/src/lib/seam/connect/routes/thermostats-climate-setting-schedules.ts
index f600279c..46785067 100644
--- a/src/lib/seam/connect/routes/thermostats-climate-setting-schedules.ts
+++ b/src/lib/seam/connect/routes/thermostats-climate-setting-schedules.ts
@@ -86,7 +86,7 @@ export class SeamHttpThermostatsClimateSettingSchedules {
   }
 
   async create(
-    body: ThermostatsClimateSettingSchedulesCreateBody,
+    body?: ThermostatsClimateSettingSchedulesCreateBody,
   ): Promise<
     ThermostatsClimateSettingSchedulesCreateResponse['climate_setting_schedule']
   > {
@@ -102,7 +102,7 @@ export class SeamHttpThermostatsClimateSettingSchedules {
   }
 
   async delete(
-    body: ThermostatsClimateSettingSchedulesDeleteBody,
+    body?: ThermostatsClimateSettingSchedulesDeleteBody,
   ): Promise<void> {
     await this.client.request<ThermostatsClimateSettingSchedulesDeleteResponse>(
       {
@@ -114,7 +114,7 @@ export class SeamHttpThermostatsClimateSettingSchedules {
   }
 
   async get(
-    body: ThermostatsClimateSettingSchedulesGetParams,
+    body?: ThermostatsClimateSettingSchedulesGetParams,
   ): Promise<
     ThermostatsClimateSettingSchedulesGetResponse['climate_setting_schedule']
   > {
@@ -128,7 +128,7 @@ export class SeamHttpThermostatsClimateSettingSchedules {
   }
 
   async list(
-    body: ThermostatsClimateSettingSchedulesListParams,
+    body?: ThermostatsClimateSettingSchedulesListParams,
   ): Promise<
     ThermostatsClimateSettingSchedulesListResponse['climate_setting_schedules']
   > {
@@ -144,7 +144,7 @@ export class SeamHttpThermostatsClimateSettingSchedules {
   }
 
   async update(
-    body: ThermostatsClimateSettingSchedulesUpdateBody,
+    body?: ThermostatsClimateSettingSchedulesUpdateBody,
   ): Promise<void> {
     await this.client.request<ThermostatsClimateSettingSchedulesUpdateResponse>(
       {
diff --git a/src/lib/seam/connect/routes/thermostats.ts b/src/lib/seam/connect/routes/thermostats.ts
index 7ef5b244..dd5c78fd 100644
--- a/src/lib/seam/connect/routes/thermostats.ts
+++ b/src/lib/seam/connect/routes/thermostats.ts
@@ -87,7 +87,7 @@ export class SeamHttpThermostats {
     return SeamHttpThermostatsClimateSettingSchedules.fromClient(this.client)
   }
 
-  async cool(body: ThermostatsCoolBody): Promise<void> {
+  async cool(body?: ThermostatsCoolBody): Promise<void> {
     await this.client.request<ThermostatsCoolResponse>({
       url: '/thermostats/cool',
       method: 'post',
@@ -96,7 +96,7 @@ export class SeamHttpThermostats {
   }
 
   async get(
-    body: ThermostatsGetParams,
+    body?: ThermostatsGetParams,
   ): Promise<ThermostatsGetResponse['thermostat']> {
     const { data } = await this.client.request<ThermostatsGetResponse>({
       url: '/thermostats/get',
@@ -106,7 +106,7 @@ export class SeamHttpThermostats {
     return data.thermostat
   }
 
-  async heat(body: ThermostatsHeatBody): Promise<void> {
+  async heat(body?: ThermostatsHeatBody): Promise<void> {
     await this.client.request<ThermostatsHeatResponse>({
       url: '/thermostats/heat',
       method: 'post',
@@ -114,7 +114,7 @@ export class SeamHttpThermostats {
     })
   }
 
-  async heatCool(body: ThermostatsHeatCoolBody): Promise<void> {
+  async heatCool(body?: ThermostatsHeatCoolBody): Promise<void> {
     await this.client.request<ThermostatsHeatCoolResponse>({
       url: '/thermostats/heat_cool',
       method: 'post',
@@ -123,7 +123,7 @@ export class SeamHttpThermostats {
   }
 
   async list(
-    body: ThermostatsListParams,
+    body?: ThermostatsListParams,
   ): Promise<ThermostatsListResponse['thermostats']> {
     const { data } = await this.client.request<ThermostatsListResponse>({
       url: '/thermostats/list',
@@ -133,7 +133,7 @@ export class SeamHttpThermostats {
     return data.thermostats
   }
 
-  async off(body: ThermostatsOffBody): Promise<void> {
+  async off(body?: ThermostatsOffBody): Promise<void> {
     await this.client.request<ThermostatsOffResponse>({
       url: '/thermostats/off',
       method: 'post',
@@ -141,7 +141,7 @@ export class SeamHttpThermostats {
     })
   }
 
-  async setFanMode(body: ThermostatsSetFanModeBody): Promise<void> {
+  async setFanMode(body?: ThermostatsSetFanModeBody): Promise<void> {
     await this.client.request<ThermostatsSetFanModeResponse>({
       url: '/thermostats/set_fan_mode',
       method: 'post',
@@ -149,7 +149,7 @@ export class SeamHttpThermostats {
     })
   }
 
-  async update(body: ThermostatsUpdateBody): Promise<void> {
+  async update(body?: ThermostatsUpdateBody): Promise<void> {
     await this.client.request<ThermostatsUpdateResponse>({
       url: '/thermostats/update',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/webhooks.ts b/src/lib/seam/connect/routes/webhooks.ts
index 7780ef68..5cddbf53 100644
--- a/src/lib/seam/connect/routes/webhooks.ts
+++ b/src/lib/seam/connect/routes/webhooks.ts
@@ -87,7 +87,7 @@ export class SeamHttpWebhooks {
   }
 
   async create(
-    body: WebhooksCreateBody,
+    body?: WebhooksCreateBody,
   ): Promise<WebhooksCreateResponse['webhook']> {
     const { data } = await this.client.request<WebhooksCreateResponse>({
       url: '/webhooks/create',
@@ -97,7 +97,7 @@ export class SeamHttpWebhooks {
     return data.webhook
   }
 
-  async delete(body: WebhooksDeleteBody): Promise<void> {
+  async delete(body?: WebhooksDeleteBody): Promise<void> {
     await this.client.request<WebhooksDeleteResponse>({
       url: '/webhooks/delete',
       method: 'post',
@@ -105,7 +105,7 @@ export class SeamHttpWebhooks {
     })
   }
 
-  async get(body: WebhooksGetParams): Promise<WebhooksGetResponse['webhook']> {
+  async get(body?: WebhooksGetParams): Promise<WebhooksGetResponse['webhook']> {
     const { data } = await this.client.request<WebhooksGetResponse>({
       url: '/webhooks/get',
       method: 'post',
diff --git a/src/lib/seam/connect/routes/workspaces.ts b/src/lib/seam/connect/routes/workspaces.ts
index f69cd4da..e886745c 100644
--- a/src/lib/seam/connect/routes/workspaces.ts
+++ b/src/lib/seam/connect/routes/workspaces.ts
@@ -108,7 +108,7 @@ export class SeamHttpWorkspaces {
     return data.workspaces
   }
 
-  async resetSandbox(body: WorkspacesResetSandboxBody): Promise<void> {
+  async resetSandbox(body?: WorkspacesResetSandboxBody): Promise<void> {
     await this.client.request<WorkspacesResetSandboxResponse>({
       url: '/workspaces/reset_sandbox',
       method: 'post',