diff --git a/packages/launchpad/src/encoding.ts b/packages/launchpad/src/encoding.ts
index 17f8de77..3c09e775 100644
--- a/packages/launchpad/src/encoding.ts
+++ b/packages/launchpad/src/encoding.ts
@@ -28,7 +28,7 @@ function sortJson(json: any): any {
  *
  * @see https://docs.cosmos.network/master/modules/auth/03_types.html#stdsigndoc
  */
-interface StdSignDoc {
+export interface StdSignDoc {
   readonly account_number: string;
   readonly chain_id: string;
   readonly fee: StdFee;
diff --git a/packages/launchpad/src/index.ts b/packages/launchpad/src/index.ts
index 49a0ea91..3701ab33 100644
--- a/packages/launchpad/src/index.ts
+++ b/packages/launchpad/src/index.ts
@@ -28,7 +28,7 @@ export {
   isSearchBySentFromOrToQuery,
   isSearchByTagsQuery,
 } from "./cosmosclient";
-export { makeSignBytes } from "./encoding";
+export { makeSignBytes, StdSignDoc } from "./encoding";
 export { buildFeeTable, FeeTable, GasLimits, GasPrice } from "./gas";
 export {
   AuthAccountsResponse,
diff --git a/packages/launchpad/types/encoding.d.ts b/packages/launchpad/types/encoding.d.ts
index 35885e4d..51c2c0c4 100644
--- a/packages/launchpad/types/encoding.d.ts
+++ b/packages/launchpad/types/encoding.d.ts
@@ -1,5 +1,18 @@
 import { Msg } from "./msgs";
 import { StdFee } from "./types";
+/**
+ * The document to be signed
+ *
+ * @see https://docs.cosmos.network/master/modules/auth/03_types.html#stdsigndoc
+ */
+export interface StdSignDoc {
+  readonly account_number: string;
+  readonly chain_id: string;
+  readonly fee: StdFee;
+  readonly memo: string;
+  readonly msgs: readonly Msg[];
+  readonly sequence: string;
+}
 export declare function makeSignBytes(
   msgs: readonly Msg[],
   fee: StdFee,
diff --git a/packages/launchpad/types/index.d.ts b/packages/launchpad/types/index.d.ts
index 17332cf2..9d137f0b 100644
--- a/packages/launchpad/types/index.d.ts
+++ b/packages/launchpad/types/index.d.ts
@@ -26,7 +26,7 @@ export {
   isSearchBySentFromOrToQuery,
   isSearchByTagsQuery,
 } from "./cosmosclient";
-export { makeSignBytes } from "./encoding";
+export { makeSignBytes, StdSignDoc } from "./encoding";
 export { buildFeeTable, FeeTable, GasLimits, GasPrice } from "./gas";
 export {
   AuthAccountsResponse,