diff --git a/src/lib/seam/connect/options.ts b/src/lib/seam/connect/options.ts
index 1699e38..35d30cd 100644
--- a/src/lib/seam/connect/options.ts
+++ b/src/lib/seam/connect/options.ts
@@ -238,4 +238,9 @@ export class SeamHttpInvalidOptionsError extends Error {
   }
 }
 
-export class SeamHttpMultiWorkspaceInvalidOptionsError extends SeamHttpInvalidOptionsError {}
+export class SeamHttpMultiWorkspaceInvalidOptionsError extends Error {
+  constructor(message: string) {
+    super(`SeamHttpMultiWorkspace received invalid options: ${message}`)
+    this.name = this.constructor.name
+  }
+}
diff --git a/test/seam/connect/env.test.ts b/test/seam/connect/env.test.ts
index 0609cfa..20ddcdb 100644
--- a/test/seam/connect/env.test.ts
+++ b/test/seam/connect/env.test.ts
@@ -30,6 +30,16 @@ test.serial(
   },
 )
 
+test.serial(
+  'SeamHttp: constructor checks for SEAM_API_KEY environment variable',
+  (t) => {
+    t.throws(() => new SeamHttp(), {
+      instanceOf: SeamHttpInvalidOptionsError,
+      message: /SEAM_API_KEY/,
+    })
+  },
+)
+
 test.serial(
   'SeamHttp: apiKey option overrides environment variables',
   async (t) => {