diff --git a/examples/basic/cli/src/examples/fetchAggregationForEmployees.ts b/examples/basic/cli/src/examples/fetchAggregationForEmployees.ts
index cf0867271..10c5c5c3e 100644
--- a/examples/basic/cli/src/examples/fetchAggregationForEmployees.ts
+++ b/examples/basic/cli/src/examples/fetchAggregationForEmployees.ts
@@ -15,7 +15,7 @@
  */
 
 import type { Client } from "@osdk/client";
-import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 import invariant from "tiny-invariant";
 import type { TypeOf } from "ts-expect";
 import { expectType } from "ts-expect";
@@ -23,7 +23,7 @@ import { expectType } from "ts-expect";
 export async function fetchAggregationForEmployees(
   client: Client<Ontology>,
 ) {
-  const result = await client.objectSet("Employee").aggregateOrThrow({
+  const result = await client(Employee).aggregateOrThrow({
     select: {
       locationCity: "approximateDistinct",
       locationName: "approximateDistinct",
diff --git a/examples/basic/cli/src/examples/fetchAggregationForEmployeesGrouped.ts b/examples/basic/cli/src/examples/fetchAggregationForEmployeesGrouped.ts
index bc3dd0c20..84c25a4c0 100644
--- a/examples/basic/cli/src/examples/fetchAggregationForEmployeesGrouped.ts
+++ b/examples/basic/cli/src/examples/fetchAggregationForEmployeesGrouped.ts
@@ -15,7 +15,7 @@
  */
 
 import type { Client } from "@osdk/client";
-import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 import invariant from "tiny-invariant";
 import type { TypeOf } from "ts-expect";
 import { expectType } from "ts-expect";
@@ -23,7 +23,7 @@ import { expectType } from "ts-expect";
 export async function fetchAggregationForEmployeesGrouped(
   client: Client<Ontology>,
 ) {
-  const result = await client.objectSet("Employee").aggregateOrThrow({
+  const result = await client(Employee).aggregateOrThrow({
     select: {
       locationCity: "approximateDistinct",
       locationName: "approximateDistinct",
diff --git a/examples/basic/cli/src/examples/fetchAggregationForEmployeesGroupedThin.ts b/examples/basic/cli/src/examples/fetchAggregationForEmployeesGroupedThin.ts
index 826d8d11c..4af01e893 100644
--- a/examples/basic/cli/src/examples/fetchAggregationForEmployeesGroupedThin.ts
+++ b/examples/basic/cli/src/examples/fetchAggregationForEmployeesGroupedThin.ts
@@ -16,7 +16,7 @@
 
 import type { ClientContext } from "@osdk/client";
 import { aggregateOrThrow } from "@osdk/client/objects";
-import { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 import invariant from "tiny-invariant";
 import type { TypeOf } from "ts-expect";
 import { expectType } from "ts-expect";
@@ -26,7 +26,7 @@ export async function fetchAggregationForEmployeesGroupedThin(
 ) {
   const result = await aggregateOrThrow(
     clientCtx,
-    Ontology.objects.Employee,
+    Employee,
     {
       type: "base",
       objectType: "Employee",
diff --git a/examples/basic/cli/src/examples/fetchEmployeeLead.ts b/examples/basic/cli/src/examples/fetchEmployeeLead.ts
index e816b46ca..2ad1bc33d 100644
--- a/examples/basic/cli/src/examples/fetchEmployeeLead.ts
+++ b/examples/basic/cli/src/examples/fetchEmployeeLead.ts
@@ -15,7 +15,7 @@
  */
 
 import type { Client } from "@osdk/client";
-import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 import type { TypeOf } from "ts-expect";
 import { expectType } from "ts-expect";
 
@@ -23,7 +23,7 @@ export async function fetchEmployeeLead(
   client: Client<Ontology>,
   adUsername: string,
 ) {
-  const result = await client.objects.Employee.where({
+  const result = await client(Employee).where({
     adUsername,
   })
     .pivotTo("lead")
diff --git a/examples/basic/cli/src/examples/fetchEmployeePage.ts b/examples/basic/cli/src/examples/fetchEmployeePage.ts
index a9cf1e2e3..1b9fc1f09 100644
--- a/examples/basic/cli/src/examples/fetchEmployeePage.ts
+++ b/examples/basic/cli/src/examples/fetchEmployeePage.ts
@@ -15,11 +15,12 @@
  */
 
 import type { Client, Osdk } from "@osdk/client";
-import type { Employee, Ontology } from "@osdk/examples.basic.sdk";
+import { Employee } from "@osdk/examples.basic.sdk";
+import type { Ontology } from "@osdk/examples.basic.sdk";
 import { expectType } from "ts-expect";
 
 export async function fetchEmployeePage(client: Client<Ontology>) {
-  const result = await client.objectSet("Employee").fetchPageOrThrow();
+  const result = await client(Employee).fetchPageOrThrow();
 
   expectType<string | undefined>(""); // FIXME: this isn't strict enough of a check for below
   expectType<string | undefined>(result.data[0].businessTitle);
diff --git a/examples/basic/cli/src/examples/fetchEmployeePageByAdUsername.ts b/examples/basic/cli/src/examples/fetchEmployeePageByAdUsername.ts
index 161698344..ffca4e968 100644
--- a/examples/basic/cli/src/examples/fetchEmployeePageByAdUsername.ts
+++ b/examples/basic/cli/src/examples/fetchEmployeePageByAdUsername.ts
@@ -15,7 +15,7 @@
  */
 
 import type { Client } from "@osdk/client";
-import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 
 /**
  * Demonstrates looking up an employee and for fun adds an `AND` and `ne`
@@ -24,7 +24,7 @@ export async function fetchEmployeePageByAdUsername(
   client: Client<Ontology>,
   adUsername: string,
 ) {
-  const result = await client.objects.Employee.where({
+  const result = await client(Employee).where({
     $and: [{ adUsername }, { employeeNumber: { $ne: 5 } }],
   }).fetchPageOrThrow();
   // for await (const e of client.objects.Employee.asyncIter()) {
diff --git a/examples/basic/cli/src/examples/fetchEmployeePageByAdUsernameAndLimit.ts b/examples/basic/cli/src/examples/fetchEmployeePageByAdUsernameAndLimit.ts
index 8c29c1e6f..4c3091832 100644
--- a/examples/basic/cli/src/examples/fetchEmployeePageByAdUsernameAndLimit.ts
+++ b/examples/basic/cli/src/examples/fetchEmployeePageByAdUsernameAndLimit.ts
@@ -15,7 +15,7 @@
  */
 
 import type { Client } from "@osdk/client";
-import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee, type Ontology } from "@osdk/examples.basic.sdk";
 import invariant from "tiny-invariant";
 
 /**
@@ -25,7 +25,7 @@ export async function fetchEmployeePageByAdUsernameAndLimit(
   client: Client<Ontology>,
   adUsername: string,
 ) {
-  const result = await client.objects.Employee.where({
+  const result = await client(Employee).where({
     $and: [
       { adUsername },
       { employeeNumber: { $ne: 5 } },
diff --git a/examples/basic/cli/src/examples/fetchEmployeePageThin.ts b/examples/basic/cli/src/examples/fetchEmployeePageThin.ts
index 3c6214533..2f8522af9 100644
--- a/examples/basic/cli/src/examples/fetchEmployeePageThin.ts
+++ b/examples/basic/cli/src/examples/fetchEmployeePageThin.ts
@@ -18,14 +18,15 @@ import * as OsdkApi from "@osdk/client";
 import type { ClientContext } from "@osdk/client";
 import { Objects } from "@osdk/client";
 import { fetchPageOrThrow } from "@osdk/client/objects";
-import { Ontology } from "@osdk/examples.basic.sdk";
+import type { Ontology } from "@osdk/examples.basic.sdk";
+import { Employee } from "@osdk/examples.basic.sdk";
 import type { TypeOf } from "ts-expect";
 import { expectType } from "ts-expect";
 
 export async function fetchEmployeePageThin(
   clientCtx: ClientContext<Ontology>,
 ) {
-  let result = await fetchPageOrThrow(clientCtx, Ontology.objects.Employee, {
+  let result = await fetchPageOrThrow(clientCtx, Employee, {
     select: ["adUsername", "businessTitle", "employeeNumber"],
   });
 
@@ -42,29 +43,17 @@ export async function fetchEmployeePageThin(
   >(false);
 
   // OR
-  let result2 = await Objects.fetchPageOrThrow(
-    clientCtx,
-    Ontology.objects.Employee,
-    {
-      select: ["adUsername", "businessTitle", "employeeNumber"],
-    },
-  );
+  let result2 = await Objects.fetchPageOrThrow(clientCtx, Employee, {
+    select: ["adUsername", "businessTitle", "employeeNumber"],
+  });
 
   // or
-  let result3 = await OsdkApi.Objects.fetchPageOrThrow(
-    clientCtx,
-    Ontology.objects.Employee,
-    {
-      select: ["adUsername", "businessTitle", "employeeNumber"],
-    },
-  );
+  let result3 = await OsdkApi.Objects.fetchPageOrThrow(clientCtx, Employee, {
+    select: ["adUsername", "businessTitle", "employeeNumber"],
+  });
 
   // Quick check to make sure we get everything
-  let result4 = await fetchPageOrThrow(
-    clientCtx,
-    Ontology.objects.Employee,
-    {},
-  );
+  let result4 = await fetchPageOrThrow(clientCtx, Employee, {});
 
   console.log("fetchEmployeePageThin(): ");
   console.table(
diff --git a/examples/basic/cli/src/index.ts b/examples/basic/cli/src/index.ts
index 0071bdb33..eb0df2380 100644
--- a/examples/basic/cli/src/index.ts
+++ b/examples/basic/cli/src/index.ts
@@ -15,7 +15,11 @@
  */
 
 import { createClient, createClientContext } from "@osdk/client";
-import { Ontology } from "@osdk/examples.basic.sdk";
+import {
+  BoundariesUsState,
+  Ontology,
+  WeatherStation,
+} from "@osdk/examples.basic.sdk";
 import invariant from "tiny-invariant";
 import { fetchAggregationForEmployees } from "./examples/fetchAggregationForEmployees.js";
 import { fetchAggregationForEmployeesGrouped } from "./examples/fetchAggregationForEmployeesGrouped.js";
@@ -54,27 +58,31 @@ export const clientCtx = createClientContext(
   `typescript-sdk/dev osdk-cli/dev`,
 );
 
+const runOld = false;
+
 async function runTests() {
   try {
-    await fetchEmployeePage(client);
-    await fetchEmployeePageByAdUsername(client, "fish");
-    await fetchEmployeePageByAdUsernameAndLimit(client, "fish");
-    await fetchAggregationForEmployees(client);
-    await fetchAggregationForEmployeesGrouped(client);
-    await fetchEmployeePageThin(clientCtx);
-
-    await fetchAggregationForEmployeesGroupedThin(clientCtx);
-    await fetchEmployeeLead(client, "bob");
-
-    const interfaceImplementationComplete = false;
-    if (interfaceImplementationComplete) {
-      const interfaceResults = await client.objects.SimpleInterface
-        .fetchPageOrThrow();
-      interfaceResults.data[0].body;
+    if (runOld) {
+      await fetchEmployeePage(client);
+      await fetchEmployeePageByAdUsername(client, "fish");
+      await fetchEmployeePageByAdUsernameAndLimit(client, "fish");
+      await fetchAggregationForEmployees(client);
+      await fetchAggregationForEmployeesGrouped(client);
+      await fetchEmployeePageThin(clientCtx);
+
+      await fetchAggregationForEmployeesGroupedThin(clientCtx);
+      await fetchEmployeeLead(client, "bob");
+
+      const interfaceImplementationComplete = false;
+      if (interfaceImplementationComplete) {
+        const interfaceResults = await client.objects.SimpleInterface
+          .fetchPageOrThrow();
+        interfaceResults.data[0].body;
+      }
     }
 
     // only works in default ontology
-    const result = await client.objects.WeatherStation.where({
+    const result = await client(WeatherStation).where({
       geohash: {
         $within: {
           distance: [1_000, "miles"],
@@ -86,7 +94,7 @@ async function runTests() {
     console.log(result.data[0].geohash);
 
     // drew a polygon that intersects NY, NJ and PA
-    const intersectResult = await client.objects.BoundariesUsState.where({
+    const intersectResult = await client(BoundariesUsState).where({
       geometry10M: {
         $intersects: {
           polygon: [
@@ -120,7 +128,7 @@ async function runTests() {
     console.log(intersectResult.data.map(data => data.usState));
     console.log(intersectResult.data[0].geometry10M);
 
-    const intersectResultGeojson = await client.objects.BoundariesUsState
+    const intersectResultGeojson = await client(BoundariesUsState)
       .where({
         $not: {
           geometry10M: {
@@ -159,7 +167,7 @@ async function runTests() {
     console.log(intersectResultGeojson.data.map(data => data.usState));
 
     // drew a bbox that intersects NY, NJ and PA
-    const intersectResultbbox = await client.objects.BoundariesUsState
+    const intersectResultbbox = await client(BoundariesUsState)
       .where({
         geometry10M: {
           $intersects: [
@@ -173,7 +181,7 @@ async function runTests() {
 
     console.log(intersectResultbbox.data.map(data => data.usState));
 
-    await typeChecks(client);
+    if (runOld) await typeChecks(client);
   } catch (e) {
     console.error("Caught an error we did not expect", typeof e);
     console.error(e);
diff --git a/examples/todoapp/src/useTodos.tsx b/examples/todoapp/src/useTodos.tsx
index 9c70f73cc..5e9c8ddaf 100644
--- a/examples/todoapp/src/useTodos.tsx
+++ b/examples/todoapp/src/useTodos.tsx
@@ -4,6 +4,7 @@ import { foundryClient, foundryClient2 } from "./foundryClient";
 import { isOk, ReturnEditsMode, type Result } from "./generatedNoCheck";
 import type { Todo } from "./generatedNoCheck/ontology/objects";
 import { ActionValidationError } from "@osdk/client";
+import * as MyOsdk from "./generatedNoCheck2";
 
 function orThrow<T, E>(result: Result<T, E>) {
   if (isOk(result)) {
@@ -21,7 +22,7 @@ export function useTodos() {
   );
 
   useEffect(() => {
-    const unsubscribe = foundryClient2.objects.Todo.subscribe({
+    const unsubscribe = foundryClient2(MyOsdk.Todo).subscribe({
       onChange(objects) {
         // index incoming objects by apiName and then by pk value
         const byApiNameByPK = new Map<
@@ -97,7 +98,7 @@ export function useTodos() {
           const actionsV2Ready = true;
 
           if (actionsV2Ready) {
-            await foundryClient2.actions.completeTodo({
+            await foundryClient2(MyOsdk.completeTodo)({
               is_complete: b,
               Todo: todo.__primaryKey,
             });
@@ -126,14 +127,14 @@ export function useTodos() {
     [mutate]
   );
 
-  const createTodo = useCallback(
+  const createTodoMutator = useCallback(
     async (title: string, setError?: (error: string | undefined) => void) => {
       await mutate(
         async () => {
           // Unwrap to get throw behavior on error.
           // Don't return because we want to invalidate cache
           try {
-            await foundryClient2.actions.createTodo({
+            await foundryClient2(MyOsdk.createTodo)({
               Todo: title,
               is_complete: false,
             });
@@ -181,7 +182,7 @@ export function useTodos() {
     error,
     isValidating,
     toggleComplete,
-    createTodo,
+    createTodo: createTodoMutator,
   };
 }
 
diff --git a/packages/api/changelog/@unreleased/pr-83.v2.yml b/packages/api/changelog/@unreleased/pr-83.v2.yml
new file mode 100644
index 000000000..a0be79c70
--- /dev/null
+++ b/packages/api/changelog/@unreleased/pr-83.v2.yml
@@ -0,0 +1,5 @@
+type: feature
+feature:
+  description: Add new client invocation syntax
+  links:
+  - https://github.com/palantir/osdk-ts/pull/83
diff --git a/packages/client/changelog/@unreleased/pr-83.v2.yml b/packages/client/changelog/@unreleased/pr-83.v2.yml
new file mode 100644
index 000000000..a0be79c70
--- /dev/null
+++ b/packages/client/changelog/@unreleased/pr-83.v2.yml
@@ -0,0 +1,5 @@
+type: feature
+feature:
+  description: Add new client invocation syntax
+  links:
+  - https://github.com/palantir/osdk-ts/pull/83
diff --git a/packages/client/src/Client.ts b/packages/client/src/Client.ts
index f14d3ab51..6d5980b44 100644
--- a/packages/client/src/Client.ts
+++ b/packages/client/src/Client.ts
@@ -15,22 +15,33 @@
  */
 
 import type {
+  ActionDefinition,
+  ObjectOrInterfaceDefinition,
   ObjectOrInterfaceDefinitionFrom,
   ObjectOrInterfaceKeysFrom,
   ObjectTypeKeysFrom,
   OntologyDefinition,
 } from "@osdk/api";
-import type { Actions } from "./actions/Actions.js";
+import type { Actions, ActionSignatureFromDef } from "./actions/Actions.js";
 import type { ObjectSet } from "./objectSet/ObjectSet.js";
 import type { ObjectSetCreator } from "./ObjectSetCreator.js";
 
 export interface Client<O extends OntologyDefinition<any>> {
+  <
+    Q extends ObjectOrInterfaceDefinition | ActionDefinition<any, any, any>,
+  >(o: Q): Q extends ObjectOrInterfaceDefinition ? ObjectSet<Q>
+    : Q extends ActionDefinition<any, any, any> ? ActionSignatureFromDef<Q>
+    : never;
+
+  /** @deprecated use client(MyType) */
   objectSet: <const K extends ObjectOrInterfaceKeysFrom<O>>(
     type: K,
   ) => ObjectSet<ObjectOrInterfaceDefinitionFrom<O, K>>;
 
+  /** @deprecated use client(MyType) */
   objects: ObjectSetCreator<O>;
 
+  /** @deprecated use client(myAction) */
   actions: Actions<O>;
 
   __UNSTABLE_preexistingObjectSet<const K extends ObjectTypeKeysFrom<O>>(
diff --git a/packages/client/src/actions/Actions.ts b/packages/client/src/actions/Actions.ts
index 5b9b8f547..6e74383e7 100644
--- a/packages/client/src/actions/Actions.ts
+++ b/packages/client/src/actions/Actions.ts
@@ -15,6 +15,7 @@
  */
 
 import type {
+  ActionDefinition,
   ActionParameterDefinition,
   ObjectActionDataType,
   ObjectSetActionDataType,
@@ -68,11 +69,13 @@ export type OsdkActionParameters<
 > = NullableProps<X> extends never ? NotOptionalParams<X>
   : PartialByNotStrict<NotOptionalParams<X>, NullableProps<X>>;
 
+export type ActionSignatureFromDef<T extends ActionDefinition<any, any, any>> =
+  NonNullable<T["__OsdkActionType"]> extends never
+    ? ActionSignature<T["parameters"]>
+    : NonNullable<T["__OsdkActionType"]>;
+
 export type Actions<O extends OntologyDefinition<any>> = {
-  [K in keyof O["actions"]]:
-    NonNullable<O["actions"][K]["__OsdkActionType"]> extends never
-      ? ActionSignature<O["actions"][K]["parameters"]>
-      : NonNullable<O["actions"][K]["__OsdkActionType"]>;
+  [K in keyof O["actions"]]: ActionSignatureFromDef<O["actions"][K]>;
 };
 
 type ActionParametersDefinition = Record<
diff --git a/packages/client/src/createClient.ts b/packages/client/src/createClient.ts
index f981b2fd7..375584590 100644
--- a/packages/client/src/createClient.ts
+++ b/packages/client/src/createClient.ts
@@ -15,16 +15,19 @@
  */
 
 import type {
+  ActionDefinition,
+  ObjectOrInterfaceDefinition,
   ObjectOrInterfaceDefinitionFrom,
   ObjectOrInterfaceKeysFrom,
   ObjectTypeKeysFrom,
   OntologyDefinition,
 } from "@osdk/api";
 import { createClientContext } from "@osdk/shared.net";
+import type { ActionSignatureFromDef } from "./actions/Actions.js";
 import { createActionInvoker } from "./actions/createActionInvoker.js";
 import type { Client } from "./Client.js";
 import { createObjectSet } from "./objectSet/createObjectSet.js";
-import type { ObjectSetFactory } from "./objectSet/ObjectSet.js";
+import type { ObjectSet, ObjectSetFactory } from "./objectSet/ObjectSet.js";
 import { createObjectSetCreator } from "./ObjectSetCreator.js";
 import { USER_AGENT } from "./util/UserAgent.js";
 
@@ -54,13 +57,30 @@ export function createClient<O extends OntologyDefinition<any>>(
       clientCtx,
     );
 
+  const actionInvoker = createActionInvoker(clientCtx);
+
+  function newClient<
+    T extends ObjectOrInterfaceDefinition | ActionDefinition<any, any>,
+  >(o: T): T extends ObjectOrInterfaceDefinition ? ObjectSet<T>
+    : T extends ActionDefinition<any, any> ? ActionSignatureFromDef<T>
+    : never
+  {
+    if (o.type === "object" || o.type === "interface") {
+      return createObjectSet(o, clientCtx) as ObjectSet<any> as any;
+    } else if (o.type === "action") {
+      return actionInvoker[o.apiName];
+    } else {
+      throw new Error("Unknown definition: " + JSON.stringify(o));
+    }
+  }
+
   const client: Client<O> = Object.defineProperties(
-    {} as Client<O>,
+    newClient as Client<O>,
     {
       objectSet: { get: () => objectSetFactory },
       objects: { get: () => createObjectSetCreator(client, clientCtx) },
       actions: {
-        get: () => createActionInvoker(clientCtx),
+        get: () => actionInvoker,
       },
       __UNSTABLE_preexistingObjectSet: {
         get: () =>
diff --git a/packages/generator/changelog/@unreleased/pr-83.v2.yml b/packages/generator/changelog/@unreleased/pr-83.v2.yml
new file mode 100644
index 000000000..a0be79c70
--- /dev/null
+++ b/packages/generator/changelog/@unreleased/pr-83.v2.yml
@@ -0,0 +1,5 @@
+type: feature
+feature:
+  description: Add new client invocation syntax
+  links:
+  - https://github.com/palantir/osdk-ts/pull/83