diff --git a/apps/backend/src/app/api/v1/team-memberships/crud.tsx b/apps/backend/src/app/api/v1/team-memberships/crud.tsx
index f63efb1cc..f1dc2f2e6 100644
--- a/apps/backend/src/app/api/v1/team-memberships/crud.tsx
+++ b/apps/backend/src/app/api/v1/team-memberships/crud.tsx
@@ -10,6 +10,7 @@ import { KnownErrors } from "@stackframe/stack-shared";
 import { ProjectsCrud } from "@stackframe/stack-shared/dist/interface/crud/projects";
 import { PrismaTransaction } from "@/lib/types";
 import { createLazyProxy } from "@stackframe/stack-shared/dist/utils/proxies";
+import { sendTeamMembershipCreatedWebhook, sendTeamMembershipDeletedWebhook } from "@/lib/webhooks";
 
 
 export async function addUserToTeam(tx: PrismaTransaction, options: {
@@ -91,12 +92,22 @@ export const teamMembershipsCrudHandlers = createLazyProxy(() => createCrudHandl
       });
     });
 
-    return {};
+    const data = {
+      team_id: params.team_id,
+      user_id: userId,
+    };
+
+    await sendTeamMembershipCreatedWebhook({
+      projectId: auth.project.id,
+      data,
+    });
+
+    return data;
   },
   onDelete: async ({ auth, params }) => {
-    await prismaClient.$transaction(async (tx) => {
-      const userId = getIdFromUserIdOrMe(params.user_id, auth.user);
+    const userId = getIdFromUserIdOrMe(params.user_id, auth.user);
 
+    await prismaClient.$transaction(async (tx) => {
       // Users are always allowed to remove themselves from a team
       // Only users with the $remove_members permission can remove other users
       if (auth.type === 'client') {
@@ -129,5 +140,13 @@ export const teamMembershipsCrudHandlers = createLazyProxy(() => createCrudHandl
         },
       });
     });
+
+    await sendTeamMembershipDeletedWebhook({
+      projectId: auth.project.id,
+      data: {
+        team_id: params.team_id,
+        user_id: userId,
+      },
+    });
   },
 }));
diff --git a/apps/backend/src/app/api/v1/users/crud.tsx b/apps/backend/src/app/api/v1/users/crud.tsx
index d03595fd2..c538b7f5c 100644
--- a/apps/backend/src/app/api/v1/users/crud.tsx
+++ b/apps/backend/src/app/api/v1/users/crud.tsx
@@ -541,7 +541,6 @@ export const usersCrudHandlers = createLazyProxy(() => createCrudHandlers(usersC
       });
     }
 
-
     await sendUserCreatedWebhook({
       projectId: auth.project.id,
       data: result,
diff --git a/apps/backend/src/lib/openapi.tsx b/apps/backend/src/lib/openapi.tsx
index 57429f898..45337da17 100644
--- a/apps/backend/src/lib/openapi.tsx
+++ b/apps/backend/src/lib/openapi.tsx
@@ -57,7 +57,10 @@ export function parseWebhookOpenAPI(options: {
               metadata: webhook.metadata,
               method: 'POST',
               path: webhook.type,
-              requestBodyDesc: undefinedIfMixed(webhook.schema.describe()) || yupObject().describe(),
+              requestBodyDesc: undefinedIfMixed(yupObject({
+                type: yupString().required().meta({ openapiField: { description: webhook.type, exampleValue: webhook.type }}),
+                data: webhook.schema.required(),
+              }).describe()) || yupObject().describe(),
               responseTypeDesc: yupString().oneOf(['json']).describe(),
               statusCodeDesc: yupNumber().oneOf([200]).describe(),
             }),
diff --git a/apps/backend/src/lib/webhooks.tsx b/apps/backend/src/lib/webhooks.tsx
index 61de29b0d..1aad8d59b 100644
--- a/apps/backend/src/lib/webhooks.tsx
+++ b/apps/backend/src/lib/webhooks.tsx
@@ -1,3 +1,4 @@
+import { teamMembershipCreatedWebhookEvent, teamMembershipDeletedWebhookEvent } from "@stackframe/stack-shared/dist/interface/crud/team-memberships";
 import { teamCreatedWebhookEvent, teamDeletedWebhookEvent, teamUpdatedWebhookEvent } from "@stackframe/stack-shared/dist/interface/crud/teams";
 import { userCreatedWebhookEvent, userDeletedWebhookEvent, userUpdatedWebhookEvent } from "@stackframe/stack-shared/dist/interface/crud/users";
 import { WebhookEvent } from "@stackframe/stack-shared/dist/interface/webhooks";
@@ -51,3 +52,5 @@ export const sendUserDeletedWebhook = createWebhookSender(userDeletedWebhookEven
 export const sendTeamCreatedWebhook = createWebhookSender(teamCreatedWebhookEvent);
 export const sendTeamUpdatedWebhook = createWebhookSender(teamUpdatedWebhookEvent);
 export const sendTeamDeletedWebhook = createWebhookSender(teamDeletedWebhookEvent);
+export const sendTeamMembershipCreatedWebhook = createWebhookSender(teamMembershipCreatedWebhookEvent);
+export const sendTeamMembershipDeletedWebhook = createWebhookSender(teamMembershipDeletedWebhookEvent);
diff --git a/apps/e2e/tests/backend/endpoints/api/v1/team-memberships.test.ts b/apps/e2e/tests/backend/endpoints/api/v1/team-memberships.test.ts
index 7a329c429..e00a187b8 100644
--- a/apps/e2e/tests/backend/endpoints/api/v1/team-memberships.test.ts
+++ b/apps/e2e/tests/backend/endpoints/api/v1/team-memberships.test.ts
@@ -49,7 +49,10 @@ it("creates a team and manage users on the server", async ({ expect }) => {
   expect(response).toMatchInlineSnapshot(`
     NiceResponse {
       "status": 201,
-      "body": {},
+      "body": {
+        "team_id": "<stripped UUID>",
+        "user_id": "<stripped UUID>",
+      },
       "headers": Headers { <some fields may have been hidden> },
     }
   `);
diff --git a/docs/fern/docs.yml b/docs/fern/docs.yml
index ddf6d1eb9..1a4a40732 100644
--- a/docs/fern/docs.yml
+++ b/docs/fern/docs.yml
@@ -176,6 +176,7 @@ layout:
   content-width: 40rem
   disable-header: false
   header-height: 60px
+  sidebar-width: 300px
 favicon: ./docs/assets/favicon.ico
 logo:
   light: ./docs/assets/logo-light-mode.svg
diff --git a/docs/fern/docs/pages/concepts/webhooks.mdx b/docs/fern/docs/pages/concepts/webhooks.mdx
index d2d377a01..2d5c05303 100644
--- a/docs/fern/docs/pages/concepts/webhooks.mdx
+++ b/docs/fern/docs/pages/concepts/webhooks.mdx
@@ -11,7 +11,7 @@ In the Stack dashboard, you can create a webhook endpoint in the "Webhooks" sect
 
 ```json
 {
-  "event": "team.created",
+  "type": "team.created",
   "data": {
     "id": "2209422a-eef7-4668-967d-be79409972c5",
     "display_name": "My Team",
diff --git a/packages/stack-shared/src/interface/crud/team-memberships.ts b/packages/stack-shared/src/interface/crud/team-memberships.ts
index 18148f022..5b22f12d9 100644
--- a/packages/stack-shared/src/interface/crud/team-memberships.ts
+++ b/packages/stack-shared/src/interface/crud/team-memberships.ts
@@ -1,7 +1,11 @@
 import { CrudTypeOf, createCrud } from "../../crud";
-import { yupMixed, yupObject } from "../../schema-fields";
+import { yupMixed, yupObject, yupString } from "../../schema-fields";
+import { WebhookEvent } from "../webhooks";
 
-export const teamMembershipsCrudClientReadSchema = yupObject({}).required();
+export const teamMembershipsCrudClientReadSchema = yupObject({
+  team_id: yupString().required(),
+  user_id: yupString().required(),
+}).required();
 export const teamMembershipsCrudServerCreateSchema = yupObject({}).required();
 export const teamMembershipsCrudClientDeleteSchema = yupMixed();
 
@@ -29,4 +33,24 @@ export const teamMembershipsCrud = createCrud({
     },
   },
 });
-export type TeamMembershipsCrud = CrudTypeOf<typeof teamMembershipsCrud>;
\ No newline at end of file
+export type TeamMembershipsCrud = CrudTypeOf<typeof teamMembershipsCrud>;
+
+export const teamMembershipCreatedWebhookEvent = {
+  type: "team_membership.created",
+  schema: teamMembershipsCrud.server.readSchema,
+  metadata: {
+    summary: "Team Membership Created",
+    description: "This event is triggered when a user is added to a team.",
+    tags: ["Teams"],
+  },
+} satisfies WebhookEvent<typeof teamMembershipsCrud.server.readSchema>;
+
+export const teamMembershipDeletedWebhookEvent = {
+  type: "team_membership.deleted",
+  schema: teamMembershipsCrud.server.readSchema,
+  metadata: {
+    summary: "Team Membership Deleted",
+    description: "This event is triggered when a user is removed from a team.",
+    tags: ["Teams"],
+  },
+} satisfies WebhookEvent<typeof teamMembershipsCrud.server.readSchema>;
\ No newline at end of file
diff --git a/packages/stack-shared/src/interface/webhooks.ts b/packages/stack-shared/src/interface/webhooks.ts
index d30046dba..9a11d13c0 100644
--- a/packages/stack-shared/src/interface/webhooks.ts
+++ b/packages/stack-shared/src/interface/webhooks.ts
@@ -1,4 +1,5 @@
 import * as yup from "yup";
+import { teamMembershipCreatedWebhookEvent, teamMembershipDeletedWebhookEvent } from "./crud/team-memberships";
 import { teamCreatedWebhookEvent, teamDeletedWebhookEvent, teamUpdatedWebhookEvent } from "./crud/teams";
 import { userCreatedWebhookEvent, userDeletedWebhookEvent, userUpdatedWebhookEvent } from "./crud/users";
 
@@ -19,4 +20,6 @@ export const webhookEvents = [
   teamCreatedWebhookEvent,
   teamUpdatedWebhookEvent,
   teamDeletedWebhookEvent,
+  teamMembershipCreatedWebhookEvent,
+  teamMembershipDeletedWebhookEvent,
 ] as const;
\ No newline at end of file