diff --git a/packages/orchestration/src/cosmos-api.ts b/packages/orchestration/src/cosmos-api.ts
index 06c4587e4043..ea2a2424a58e 100644
--- a/packages/orchestration/src/cosmos-api.ts
+++ b/packages/orchestration/src/cosmos-api.ts
@@ -1,4 +1,4 @@
-import type { AnyJson, TypedJson } from '@agoric/cosmic-proto';
+import type { AnyJson, TypedJson, JsonSafe } from '@agoric/cosmic-proto';
 import type {
   Delegation,
   Redelegation,
@@ -11,6 +11,10 @@ import type {
   Order,
 } from '@agoric/cosmic-proto/ibc/core/channel/v1/channel.js';
 import type { State as IBCConnectionState } from '@agoric/cosmic-proto/ibc/core/connection/v1/connection.js';
+import type {
+  RequestQuery,
+  ResponseQuery,
+} from '@agoric/cosmic-proto/tendermint/abci/types.js';
 import type { Brand, Purse, Payment, Amount } from '@agoric/ertp/src/types.js';
 import type { Port } from '@agoric/network';
 import type { IBCChannelID, IBCConnectionID } from '@agoric/vats';
@@ -265,3 +269,7 @@ export type CosmosChainAccountMethods<CCI extends CosmosChainInfo> =
   }
     ? StakingAccountActions
     : {};
+
+export type ICQQueryFunction = (
+  msgs: JsonSafe<RequestQuery>[],
+) => Promise<JsonSafe<ResponseQuery>[]>;
diff --git a/packages/orchestration/src/examples/basic-flows.flows.js b/packages/orchestration/src/examples/basic-flows.flows.js
index d0bf98c9d9a4..f3664bfcc154 100644
--- a/packages/orchestration/src/examples/basic-flows.flows.js
+++ b/packages/orchestration/src/examples/basic-flows.flows.js
@@ -99,7 +99,6 @@ export const sendQuery = async (orch, _ctx, seat, { chainName, msgs }) => {
   mustMatch(chainName, M.string());
   if (chainName === 'agoric') throw Fail`ICQ not supported on local chain`;
   const remoteChain = await orch.getChain(chainName);
-  // @ts-expect-error FIXME implement Chain.query
   const queryResponse = await remoteChain.query(msgs);
   console.debug('sendQuery response:', queryResponse);
   return queryResponse;
diff --git a/packages/orchestration/src/orchestration-api.ts b/packages/orchestration/src/orchestration-api.ts
index 3f9bc0aa37b9..8bc5aa2abec6 100644
--- a/packages/orchestration/src/orchestration-api.ts
+++ b/packages/orchestration/src/orchestration-api.ts
@@ -18,6 +18,7 @@ import type {
   IBCMsgTransferOptions,
   KnownChains,
   LocalAccountMethods,
+  ICQQueryFunction,
 } from './types.js';
 import type { ResolvedContinuingOfferResult } from './utils/zoe-tools.js';
 
@@ -88,6 +89,8 @@ export interface Chain<CI extends ChainInfo> {
   makeAccount: () => Promise<OrchestrationAccount<CI>>;
   // FUTURE supply optional port object; also fetch port object
 
+  query: CI extends { icqEnabled: true } ? ICQQueryFunction : never;
+
   // TODO provide a way to get the local denom/brand/whatever for this chain
 }