diff --git a/src/cli/program/register.onboard.ts b/src/cli/program/register.onboard.ts
index 8f31635f0..478bae5d4 100644
--- a/src/cli/program/register.onboard.ts
+++ b/src/cli/program/register.onboard.ts
@@ -75,6 +75,7 @@ export function registerOnboardCommand(program: Command) {
     .option("--minimax-api-key <key>", "MiniMax API key")
     .option("--synthetic-api-key <key>", "Synthetic API key")
     .option("--venice-api-key <key>", "Venice API key")
+    .option("--morpheus-api-key <key>", "Morpheus API key")
     .option("--opencode-zen-api-key <key>", "OpenCode Zen API key")
     .option("--gateway-port <port>", "Gateway port")
     .option("--gateway-bind <mode>", "Gateway bind: loopback|tailnet|lan|auto|custom")
diff --git a/src/commands/onboard-non-interactive/local/auth-choice.ts b/src/commands/onboard-non-interactive/local/auth-choice.ts
index 7d952730c..6215d7d04 100644
--- a/src/commands/onboard-non-interactive/local/auth-choice.ts
+++ b/src/commands/onboard-non-interactive/local/auth-choice.ts
@@ -16,6 +16,7 @@ import {
   applyOpenrouterConfig,
   applySyntheticConfig,
   applyVeniceConfig,
+  applyMorpheusConfig,
   applyVercelAiGatewayConfig,
   applyZaiConfig,
   setAnthropicApiKey,
@@ -27,6 +28,7 @@ import {
   setOpenrouterApiKey,
   setSyntheticApiKey,
   setVeniceApiKey,
+  setMorpheusApiKey,
   setVercelAiGatewayApiKey,
   setZaiApiKey,
 } from "../../onboard-auth.js";
@@ -309,6 +311,25 @@ export async function applyNonInteractiveAuthChoice(params: {
     return applyVeniceConfig(nextConfig);
   }
 
+  if (authChoice === "morpheus-api-key") {
+    const resolved = await resolveNonInteractiveApiKey({
+      provider: "morpheus",
+      cfg: baseConfig,
+      flagValue: opts.morpheusApiKey,
+      flagName: "--morpheus-api-key",
+      envVar: "MORPHEUS_API_KEY",
+      runtime,
+    });
+    if (!resolved) return null;
+    if (resolved.source !== "profile") await setMorpheusApiKey(resolved.key);
+    nextConfig = applyAuthProfileConfig(nextConfig, {
+      profileId: "morpheus:default",
+      provider: "morpheus",
+      mode: "api_key",
+    });
+    return applyMorpheusConfig(nextConfig);
+  }
+
   if (
     authChoice === "minimax-cloud" ||
     authChoice === "minimax-api" ||
diff --git a/src/commands/onboard-types.ts b/src/commands/onboard-types.ts
index 51c0ff7b2..f04d04de2 100644
--- a/src/commands/onboard-types.ts
+++ b/src/commands/onboard-types.ts
@@ -71,6 +71,7 @@ export type OnboardOptions = {
   minimaxApiKey?: string;
   syntheticApiKey?: string;
   veniceApiKey?: string;
+  morpheusApiKey?: string;
   opencodeZenApiKey?: string;
   gatewayPort?: number;
   gatewayBind?: GatewayBind;