diff --git a/package.json b/package.json
index 571242c..8339f39 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.29.0",
-    "@rendobar/sdk": "^1.0.0",
+    "@rendobar/sdk": "^3.0.0",
     "zod": "^3.25.0"
   },
   "devDependencies": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c806fcf..9cfbdf0 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -15,8 +15,8 @@ importers:
         specifier: ^1.29.0
         version: 1.29.0(zod@3.25.76)
       '@rendobar/sdk':
-        specifier: ^1.0.0
-        version: 1.0.0
+        specifier: ^3.0.0
+        version: 3.0.0
       zod:
         specifier: ^3.25.0
         version: 3.25.76
@@ -483,8 +483,8 @@ packages:
   '@open-draft/until@2.1.0':
     resolution: {integrity: sha512-U69T3ItWHvLwGg5eJ0n3I62nWuE6ilHlmz7zM0npLBRvPRd7e6NYmg54vvRtP5mZG7kZqZCFVdsTWo7BPtBujg==}
 
-  '@rendobar/sdk@1.0.0':
-    resolution: {integrity: sha512-nxBuZ11+0XzecmyxxV3ckiErf4mBc5hYMjFGW58NSmD2nDVv7bpEtZYfLKqBFCRDFcy1sbGJsjCMpvR7mddMUA==}
+  '@rendobar/sdk@3.0.0':
+    resolution: {integrity: sha512-i9RrML7qq7E0j9Tl4oT8QIt5lizwYE+9sqdq7PESE/zcrLYA+/YuMcBF1fMmhKtOHAsEdgzzpGGLIZQjSdBrSw==}
     engines: {node: '>=18'}
 
   '@rollup/rollup-android-arm-eabi@4.60.2':
@@ -2102,7 +2102,7 @@ snapshots:
 
   '@open-draft/until@2.1.0': {}
 
-  '@rendobar/sdk@1.0.0':
+  '@rendobar/sdk@3.0.0':
     dependencies:
       partysocket: 1.1.18
     transitivePeerDependencies:
diff --git a/src/tools/uploads.ts b/src/tools/uploads.ts
index 9dec805..5e4206f 100644
--- a/src/tools/uploads.ts
+++ b/src/tools/uploads.ts
@@ -70,20 +70,22 @@ const uploadFileTool = defineTool({
       // bodies and the SDK request layer doesn't set it. Buffering avoids that
       // entirely — Blob is a fully-buffered BodyInit and works everywhere.
       //
-      // Memory bound: maxInputFileSize (free=100MB, pro=2GB) — same ceiling the
+      // Memory bound: maxInputFileSize (free=500MB, pro=10GB) — same ceiling the
       // pre-stream gate enforces. v2 candidate: patch SDK to set duplex, then
       // restore streaming + ProgressTransform for files >5MB.
       const buffer = await fh.readFile();
       const blob = new Blob([buffer]);
 
-      const result = await getSdk(ctx).uploads.upload(blob, {
+      // SDK 3.0.0: uploads.create() presigns + uploads + finalizes in one call
+      // and returns the ready asset; reference it by its stable content URL.
+      const asset = await getSdk(ctx).uploads.create(blob, {
         filename: args.filename ?? path.basename(resolved),
         signal: extra.signal,
       });
 
       ctx.logger.info({ msg: "upload_complete", basename: path.basename(resolved), sizeBytes });
 
-      return { downloadUrl: result.downloadUrl, sizeBytes };
+      return { downloadUrl: asset.url, sizeBytes };
     } finally {
       await fh.close();
     }
diff --git a/test/unit/tools/uploads.test.ts b/test/unit/tools/uploads.test.ts
index 33b0884..4f71147 100644
--- a/test/unit/tools/uploads.test.ts
+++ b/test/unit/tools/uploads.test.ts
@@ -57,9 +57,9 @@ describe("upload_file", () => {
   });
 
   it("uploads a small file and returns downloadUrl + sizeBytes", async () => {
-    const upload = vi.fn(async () => ({ downloadUrl: "https://api.rendobar.com/uploads/dl/abc" }));
+    const create = vi.fn(async () => ({ url: "https://api.rendobar.com/uploads/dl/abc" }));
     const sdk = {
-      uploads: { upload },
+      uploads: { create },
       billing: { state: vi.fn(async () => billingState(999_999_999)) },
     };
     const c = ctx({ sdk: sdk as never });
@@ -75,13 +75,13 @@ describe("upload_file", () => {
       downloadUrl: "https://api.rendobar.com/uploads/dl/abc",
       sizeBytes: 11, // "hello world"
     });
-    expect(upload).toHaveBeenCalledOnce();
+    expect(create).toHaveBeenCalledOnce();
   });
 
   it("respects custom filename", async () => {
-    const upload = vi.fn(async () => ({ downloadUrl: "https://x" }));
+    const create = vi.fn(async () => ({ url: "https://x" }));
     const sdk = {
-      uploads: { upload },
+      uploads: { create },
       billing: { state: vi.fn(async () => billingState(999_999_999)) },
     };
     const c = ctx({ sdk: sdk as never });
@@ -91,16 +91,16 @@ describe("upload_file", () => {
       c,
       { signal: new AbortController().signal } as never,
     );
-    expect(upload).toHaveBeenCalledWith(
+    expect(create).toHaveBeenCalledWith(
       expect.anything(),
       expect.objectContaining({ filename: "renamed.txt" }),
     );
   });
 
   it("rejects oversize files using cached limit", async () => {
-    const upload = vi.fn();
+    const create = vi.fn();
     const sdk = {
-      uploads: { upload },
+      uploads: { create },
       billing: { state: vi.fn() }, // should NOT be called — cache is set
     };
     const c = ctx({ sdk: sdk as never, cachedMaxFileSize: 5 });
@@ -108,15 +108,15 @@ describe("upload_file", () => {
     await expect(
       tool!.execute({ path: small }, c, { signal: new AbortController().signal } as never),
     ).rejects.toThrow(/exceeds.*limit/i);
-    expect(upload).not.toHaveBeenCalled();
+    expect(create).not.toHaveBeenCalled();
     expect(sdk.billing.state).not.toHaveBeenCalled();
   });
 
   it("populates limit cache via billing.state when cold", async () => {
-    const upload = vi.fn(async () => ({ downloadUrl: "https://x" }));
+    const create = vi.fn(async () => ({ url: "https://x" }));
     const billingStateFn = vi.fn(async () => billingState(100));
     const sdk = {
-      uploads: { upload },
+      uploads: { create },
       billing: { state: billingStateFn },
     };
     const c = ctx({ sdk: sdk as never });