diff --git a/src/utils/axios-client.ts b/src/utils/axios-client.ts
index 957835c..b8c9ab6 100644
--- a/src/utils/axios-client.ts
+++ b/src/utils/axios-client.ts
@@ -174,6 +174,18 @@ export function createAxiosClient({
 
   // Add origin URL in browser environment
   client.interceptors.request.use((config) => {
+    // Axios selects its Node HTTP adapter in Deno, where DELETE requests with
+    // a body fail in the node:http compatibility layer. deleteMany relies on
+    // that request shape, while Deno's native fetch handles it correctly.
+    if (
+      typeof (globalThis as typeof globalThis & { Deno?: unknown }).Deno !==
+        "undefined" &&
+      config.method?.toLowerCase() === "delete" &&
+      config.data !== undefined
+    ) {
+      config.adapter = "fetch";
+    }
+
     if (typeof window !== "undefined") {
       config.headers.set("X-Origin-URL", window.location.href);
     }
diff --git a/tests/unit/axios-client.test.ts b/tests/unit/axios-client.test.ts
new file mode 100644
index 0000000..aece9e1
--- /dev/null
+++ b/tests/unit/axios-client.test.ts
@@ -0,0 +1,70 @@
+import axios from "axios";
+import { afterEach, beforeEach, describe, expect, test, vi } from "vitest";
+
+import { createAxiosClient } from "../../src/utils/axios-client.ts";
+
+vi.mock("axios", () => ({
+  default: {
+    create: vi.fn(),
+  },
+}));
+
+function createMockClient() {
+  return {
+    defaults: { headers: { common: {} } },
+    interceptors: {
+      request: { use: vi.fn() },
+      response: { use: vi.fn() },
+    },
+  };
+}
+
+describe("createAxiosClient Deno adapter selection", () => {
+  let mockClient: ReturnType<typeof createMockClient>;
+
+  beforeEach(() => {
+    mockClient = createMockClient();
+    vi.mocked(axios.create).mockReturnValue(mockClient as any);
+  });
+
+  afterEach(() => {
+    vi.unstubAllGlobals();
+    vi.clearAllMocks();
+  });
+
+  function getRequestInterceptor() {
+    createAxiosClient({ baseURL: "https://example.com/api" });
+    return mockClient.interceptors.request.use.mock.calls[0][0];
+  }
+
+  test("uses the fetch adapter for DELETE requests with a body in Deno", () => {
+    vi.stubGlobal("Deno", {});
+    const intercept = getRequestInterceptor();
+    const config = { method: "delete", data: { status: "done" }, headers: new Headers() };
+
+    expect(intercept(config).adapter).toBe("fetch");
+  });
+
+  test("keeps the default adapter for bodyless DELETE requests in Deno", () => {
+    vi.stubGlobal("Deno", {});
+    const intercept = getRequestInterceptor();
+    const config = { method: "delete", headers: new Headers() };
+
+    expect(intercept(config).adapter).toBeUndefined();
+  });
+
+  test("keeps the default adapter for other request methods in Deno", () => {
+    vi.stubGlobal("Deno", {});
+    const intercept = getRequestInterceptor();
+    const config = { method: "post", data: { title: "new" }, headers: new Headers() };
+
+    expect(intercept(config).adapter).toBeUndefined();
+  });
+
+  test("keeps the default adapter outside Deno", () => {
+    const intercept = getRequestInterceptor();
+    const config = { method: "delete", data: { status: "done" }, headers: new Headers() };
+
+    expect(intercept(config).adapter).toBeUndefined();
+  });
+});