diff --git a/packages/cosmwasm/src/cosmosmsg.ts b/packages/cosmwasm/src/cosmosmsg.ts
new file mode 100644
index 00000000..7cfc74c3
--- /dev/null
+++ b/packages/cosmwasm/src/cosmosmsg.ts
@@ -0,0 +1,77 @@
+/* eslint-disable @typescript-eslint/naming-convention */
+import { Coin } from "@cosmjs/launchpad";
+
+interface BankSendMsg {
+  readonly send: {
+    readonly from_address: string;
+    readonly to_address: string;
+    readonly amount: readonly Coin[];
+  };
+}
+
+export interface BankMsg {
+  readonly bank: BankSendMsg;
+}
+
+export interface CustomMsg {
+  readonly custom: Record<string, unknown>;
+}
+
+interface StakingDelegateMsg {
+  readonly delegate: {
+    readonly validator: string;
+    readonly amount: Coin;
+  };
+}
+
+interface StakingRedelegateMsg {
+  readonly redelgate: {
+    readonly src_validator: string;
+    readonly dst_validator: string;
+    readonly amount: Coin;
+  };
+}
+
+interface StakingUndelegateMsg {
+  readonly undelegate: {
+    readonly validator: string;
+    readonly amount: Coin;
+  };
+}
+
+interface StakingWithdrawMsg {
+  readonly withdraw: {
+    readonly validator: string;
+    readonly recipient?: string;
+  };
+}
+
+export interface StakingMsg {
+  readonly staking: StakingDelegateMsg | StakingRedelegateMsg | StakingUndelegateMsg | StakingWithdrawMsg;
+}
+
+interface WasmExecuteMsg {
+  readonly execute: {
+    readonly contract_address: string;
+    readonly msg: any;
+    readonly send: readonly Coin[];
+  };
+}
+
+interface WasmInstantiateMsg {
+  readonly instantiate: {
+    readonly code_id: string;
+    readonly msg: any;
+    readonly send: readonly Coin[];
+    readonly label?: string;
+  };
+}
+
+export interface WasmMsg {
+  readonly wasm: WasmExecuteMsg | WasmInstantiateMsg;
+}
+
+/** These definitions are derived from CosmWasm:
+ * https://github.com/CosmWasm/cosmwasm/blob/v0.12.0/packages/std/src/results/cosmos_msg.rs#L10-L23
+ */
+export type CosmosMsg = BankMsg | CustomMsg | StakingMsg | WasmMsg;
diff --git a/packages/cosmwasm/src/cw3cosmwasmclient.ts b/packages/cosmwasm/src/cw3cosmwasmclient.ts
index 4a8e3879..933c9574 100644
--- a/packages/cosmwasm/src/cw3cosmwasmclient.ts
+++ b/packages/cosmwasm/src/cw3cosmwasmclient.ts
@@ -1,6 +1,7 @@
 /* eslint-disable @typescript-eslint/naming-convention */
 import { BroadcastMode, GasLimits, GasPrice, OfflineSigner } from "@cosmjs/launchpad";
 
+import { CosmosMsg } from "./cosmosmsg";
 import { Account } from "./cosmwasmclient";
 import { CosmWasmFeeTable, ExecuteResult, SigningCosmWasmClient } from "./signingcosmwasmclient";
 
@@ -30,7 +31,7 @@ export interface ProposalResult {
   readonly id: number;
   readonly title: string;
   readonly description: string;
-  readonly msgs: ReadonlyArray<Record<string, unknown>>;
+  readonly msgs: readonly CosmosMsg[];
   readonly expires: Expiration;
   readonly status: string;
 }
@@ -163,7 +164,7 @@ export class Cw3CosmWasmClient extends SigningCosmWasmClient {
   public createMultisigProposal(
     title: string,
     description: string,
-    msgs: ReadonlyArray<Record<string, unknown>>,
+    msgs: readonly CosmosMsg[],
     earliest?: Expiration,
     latest?: Expiration,
     memo = "",
diff --git a/packages/cosmwasm/src/index.ts b/packages/cosmwasm/src/index.ts
index 7bc9232b..b90bf610 100644
--- a/packages/cosmwasm/src/index.ts
+++ b/packages/cosmwasm/src/index.ts
@@ -1,4 +1,5 @@
 export { setupWasmExtension, WasmExtension } from "./lcdapi/wasm";
+export { BankMsg, CosmosMsg, CustomMsg, StakingMsg, WasmMsg } from "./cosmosmsg";
 export {
   Account,
   Block,
diff --git a/packages/cosmwasm/types/cosmosmsg.d.ts b/packages/cosmwasm/types/cosmosmsg.d.ts
new file mode 100644
index 00000000..82b225ba
--- /dev/null
+++ b/packages/cosmwasm/types/cosmosmsg.d.ts
@@ -0,0 +1,65 @@
+import { Coin } from "@cosmjs/launchpad";
+interface BankSendMsg {
+  readonly send: {
+    readonly from_address: string;
+    readonly to_address: string;
+    readonly amount: readonly Coin[];
+  };
+}
+export interface BankMsg {
+  readonly bank: BankSendMsg;
+}
+export interface CustomMsg {
+  readonly custom: Record<string, unknown>;
+}
+interface StakingDelegateMsg {
+  readonly delegate: {
+    readonly validator: string;
+    readonly amount: Coin;
+  };
+}
+interface StakingRedelegateMsg {
+  readonly redelgate: {
+    readonly src_validator: string;
+    readonly dst_validator: string;
+    readonly amount: Coin;
+  };
+}
+interface StakingUndelegateMsg {
+  readonly undelegate: {
+    readonly validator: string;
+    readonly amount: Coin;
+  };
+}
+interface StakingWithdrawMsg {
+  readonly withdraw: {
+    readonly validator: string;
+    readonly recipient?: string;
+  };
+}
+export interface StakingMsg {
+  readonly staking: StakingDelegateMsg | StakingRedelegateMsg | StakingUndelegateMsg | StakingWithdrawMsg;
+}
+interface WasmExecuteMsg {
+  readonly execute: {
+    readonly contract_address: string;
+    readonly msg: any;
+    readonly send: readonly Coin[];
+  };
+}
+interface WasmInstantiateMsg {
+  readonly instantiate: {
+    readonly code_id: string;
+    readonly msg: any;
+    readonly send: readonly Coin[];
+    readonly label?: string;
+  };
+}
+export interface WasmMsg {
+  readonly wasm: WasmExecuteMsg | WasmInstantiateMsg;
+}
+/** These definitions are derived from CosmWasm:
+ * https://github.com/CosmWasm/cosmwasm/blob/v0.12.0/packages/std/src/results/cosmos_msg.rs#L10-L23
+ */
+export declare type CosmosMsg = BankMsg | CustomMsg | StakingMsg | WasmMsg;
+export {};
diff --git a/packages/cosmwasm/types/cw3cosmwasmclient.d.ts b/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
index b2391227..80ff14fc 100644
--- a/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
+++ b/packages/cosmwasm/types/cw3cosmwasmclient.d.ts
@@ -1,4 +1,5 @@
 import { BroadcastMode, GasLimits, GasPrice, OfflineSigner } from "@cosmjs/launchpad";
+import { CosmosMsg } from "./cosmosmsg";
 import { Account } from "./cosmwasmclient";
 import { CosmWasmFeeTable, ExecuteResult, SigningCosmWasmClient } from "./signingcosmwasmclient";
 export declare type Expiration =
@@ -24,7 +25,7 @@ export interface ProposalResult {
   readonly id: number;
   readonly title: string;
   readonly description: string;
-  readonly msgs: ReadonlyArray<Record<string, unknown>>;
+  readonly msgs: readonly CosmosMsg[];
   readonly expires: Expiration;
   readonly status: string;
 }
@@ -86,7 +87,7 @@ export declare class Cw3CosmWasmClient extends SigningCosmWasmClient {
   createMultisigProposal(
     title: string,
     description: string,
-    msgs: ReadonlyArray<Record<string, unknown>>,
+    msgs: readonly CosmosMsg[],
     earliest?: Expiration,
     latest?: Expiration,
     memo?: string,
diff --git a/packages/cosmwasm/types/index.d.ts b/packages/cosmwasm/types/index.d.ts
index 7bc9232b..b90bf610 100644
--- a/packages/cosmwasm/types/index.d.ts
+++ b/packages/cosmwasm/types/index.d.ts
@@ -1,4 +1,5 @@
 export { setupWasmExtension, WasmExtension } from "./lcdapi/wasm";
+export { BankMsg, CosmosMsg, CustomMsg, StakingMsg, WasmMsg } from "./cosmosmsg";
 export {
   Account,
   Block,