diff --git a/src/getNitroContractVersions.unit.test.ts b/src/getNitroContractVersions.unit.test.ts
index a7557d31..46231b90 100644
--- a/src/getNitroContractVersions.unit.test.ts
+++ b/src/getNitroContractVersions.unit.test.ts
@@ -42,7 +42,7 @@ describe('getNitroContractVersions', () => {
     );
   });
 
-  it('throws when the JSON payload is missing top level fields', async () => {
+  it('throws when the result is missing top-level fields', async () => {
     vi.mocked(runChainVersioner).mockResolvedValueOnce({
       versions: { Inbox: 'v1.1.1' },
     } as never);
@@ -52,7 +52,7 @@ describe('getNitroContractVersions', () => {
     ).rejects.toThrow('Failed to parse Nitro contract versions');
   });
 
-  it('accepts any JSON payload that includes versions and upgradeRecommendation', async () => {
+  it('accepts any result that includes versions and upgradeRecommendation', async () => {
     vi.mocked(runChainVersioner).mockResolvedValueOnce({
       versions: 'not-validated',
       upgradeRecommendation: null,
diff --git a/src/scripting/commands.ts b/src/scripting/commands.ts
index cf783e81..7f53be63 100644
--- a/src/scripting/commands.ts
+++ b/src/scripting/commands.ts
@@ -130,6 +130,8 @@ import {
   schema as deployFullChainSchema,
   execute as deployFullChainExecute,
 } from './workflows/deployFullChain';
+import { getChainContractVersions } from '../getChainContractVersions';
+import { getChainContractVersionsSchema } from './schemas/getChainContractVersions';
 
 import { contractRegistry } from './contractRegistry';
 import { buildContractCommandSchema } from './contractCommandSchema';
@@ -366,4 +368,5 @@ export const commands: readonly Command[] = [
   ),
 
   ...contractCommands,
+  command('getChainContractVersions', getChainContractVersionsSchema, getChainContractVersions),
 ];
diff --git a/src/scripting/schemaCoverage.ts b/src/scripting/schemaCoverage.ts
index dcaf8c92..30280474 100644
--- a/src/scripting/schemaCoverage.ts
+++ b/src/scripting/schemaCoverage.ts
@@ -407,6 +407,9 @@ vi.mock('viem', async (importOriginal) => {
   };
 });
 
+vi.mock('../getChainContractVersions', () => ({
+  getChainContractVersions: _mocks.fn('getChainContractVersions'),
+}));
 /**
  * A testable leaf of a schema -- a scalar field the harness will vary when
  * running coverage.
diff --git a/src/scripting/schemas/getChainContractVersions.ts b/src/scripting/schemas/getChainContractVersions.ts
new file mode 100644
index 00000000..bd839a76
--- /dev/null
+++ b/src/scripting/schemas/getChainContractVersions.ts
@@ -0,0 +1,17 @@
+import { z } from 'zod';
+
+import { getChainContractVersions } from '../../getChainContractVersions';
+import { addressSchema } from './common';
+
+export const getChainContractVersionsSchema = z
+  .object({
+    inboxAddress: addressSchema,
+    parentChainRpc: z.url(),
+  })
+  .strict()
+  .transform(
+    (input): Parameters<typeof getChainContractVersions> => [
+      input.inboxAddress,
+      input.parentChainRpc,
+    ],
+  );
diff --git a/src/scripting/schemas/index.ts b/src/scripting/schemas/index.ts
index 5f73f2b1..6d016e29 100644
--- a/src/scripting/schemas/index.ts
+++ b/src/scripting/schemas/index.ts
@@ -81,3 +81,4 @@ export {
   isAllowListEnabledSchema,
   isAllowedSchema,
 } from './actions';
+export { getChainContractVersionsSchema } from './getChainContractVersions';