diff --git a/src/agents/model-auth.ts b/src/agents/model-auth.ts
index 680d0f53c..2ca07bdfb 100644
--- a/src/agents/model-auth.ts
+++ b/src/agents/model-auth.ts
@@ -285,6 +285,7 @@ export function resolveEnvApiKey(provider: string): EnvApiKeyResult | null {
     venice: "VENICE_API_KEY",
     mistral: "MISTRAL_API_KEY",
     opencode: "OPENCODE_API_KEY",
+    ollama: "OLLAMA_API_KEY",
   };
   const envVar = envMap[normalized];
   if (!envVar) return null;
diff --git a/src/agents/models-config.providers.ollama.test.ts b/src/agents/models-config.providers.ollama.test.ts
index 0dab1b22c..d788e47e8 100644
--- a/src/agents/models-config.providers.ollama.test.ts
+++ b/src/agents/models-config.providers.ollama.test.ts
@@ -1,5 +1,6 @@
 import { describe, expect, it } from "vitest";
 import { resolveImplicitProviders } from "./models-config.providers.js";
+import { resolveEnvApiKey } from "./model-auth.js";
 import { mkdtempSync } from "node:fs";
 import { join } from "node:path";
 import { tmpdir } from "node:os";
@@ -12,4 +13,18 @@ describe("Ollama provider", () => {
     // Ollama requires explicit configuration via OLLAMA_API_KEY env var or profile
     expect(providers?.ollama).toBeUndefined();
   });
+
+  it("should resolve OLLAMA_API_KEY env var for ollama provider", () => {
+    const prev = process.env.OLLAMA_API_KEY;
+    try {
+      process.env.OLLAMA_API_KEY = "ollama";
+      const result = resolveEnvApiKey("ollama");
+      expect(result).not.toBeNull();
+      expect(result!.apiKey).toBe("ollama");
+      expect(result!.source).toContain("OLLAMA_API_KEY");
+    } finally {
+      if (prev === undefined) delete process.env.OLLAMA_API_KEY;
+      else process.env.OLLAMA_API_KEY = prev;
+    }
+  });
 });