diff --git a/CHANGELOG.md b/CHANGELOG.md
index 152a003d63..944637f0d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@
 
 ### ✨ New Features
 
+- **feat(providers):** add **DigitalOcean** AI (serverless inference) as an OpenAI-compatible API-key provider — base `https://inference.do-ai.run/v1`, wired through the shared OpenAI-compatible registry with full model passthrough (`open-sse/config/providers/registry/digitalocean/`, `src/shared/constants/providers/apikey/inference-hosts.ts`). Regression guard: `tests/unit/digitalocean-provider.test.ts`. (thanks @newnol)
 - **feat(providers):** add **Huancheng Public API** (`hcnsec`) as an OpenAI-compatible regional provider — Xinjiang Huancheng Cybersecurity's public LLM platform (base `https://api.hcnsec.cn/v1`, free credits via daily check-ins), wired through the shared OpenAI-compatible registry with full model passthrough (`open-sse/config/providers/registry/hcnsec/`, `src/shared/constants/providers/apikey/regional.ts`). Regression guard: `tests/unit/hcnsec-provider.test.ts`. (thanks @UnrealAryan)
 - **feat(dashboard):** the web-session credential guide now shows an **"Open {host}" link** to the provider's sign-in site (derived from the provider `website` via `getProviderWebsiteHost`), so you can jump straight to the page where the cookie/session must be captured. Regression guard: `tests/unit/web-session-provider-link-6316.test.ts`. (thanks @jordansilly77-stack)
 - **feat(cerebras):** add the **Gemma 4 31B** model (`gemma-4-31b`) to the Cerebras registry + pricing table. Regression guard extends `tests/unit/t28-model-catalog-updates.test.ts`. (thanks @backryun)
diff --git a/open-sse/config/providers/index.ts b/open-sse/config/providers/index.ts
index e071ab4205..e4281590fc 100644
--- a/open-sse/config/providers/index.ts
+++ b/open-sse/config/providers/index.ts
@@ -183,6 +183,7 @@ import { sumopodProvider } from "./registry/sumopod/index.ts";
 import { x5labProvider } from "./registry/x5lab/index.ts";
 import { kenariProvider } from "./registry/kenari/index.ts";
 import { requestyProvider } from "./registry/requesty/index.ts";
+import { digitaloceanProvider } from "./registry/digitalocean/index.ts";
 import { hcnsecProvider } from "./registry/hcnsec/index.ts";
 
 export const REGISTRY: Record<string, RegistryEntry> = {
@@ -369,5 +370,6 @@ export const REGISTRY: Record<string, RegistryEntry> = {
   x5lab: x5labProvider,
   kenari: kenariProvider,
   requesty: requestyProvider,
+  digitalocean: digitaloceanProvider,
   hcnsec: hcnsecProvider,
 };
diff --git a/open-sse/config/providers/registry/digitalocean/index.ts b/open-sse/config/providers/registry/digitalocean/index.ts
new file mode 100644
index 0000000000..af1186934c
--- /dev/null
+++ b/open-sse/config/providers/registry/digitalocean/index.ts
@@ -0,0 +1,11 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const digitaloceanProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "digitalocean",
+  alias: "digitalocean",
+  baseUrl: "https://inference.do-ai.run/v1/chat/completions",
+  modelsUrl: "https://inference.do-ai.run/v1/models",
+  models: [],
+  passthroughModels: true,
+});
diff --git a/src/shared/constants/providers/apikey/inference-hosts.ts b/src/shared/constants/providers/apikey/inference-hosts.ts
index 1fb2b9bb93..9f0069872b 100644
--- a/src/shared/constants/providers/apikey/inference-hosts.ts
+++ b/src/shared/constants/providers/apikey/inference-hosts.ts
@@ -309,4 +309,20 @@ export const APIKEY_PROVIDERS_INFERENCE = {
     },
     serviceKinds: ["llm"],
   },
+  digitalocean: {
+    id: "digitalocean",
+    alias: "digitalocean",
+    name: "DigitalOcean",
+    icon: "cloud",
+    color: "#0060FF",
+    textIcon: "DO",
+    passthroughModels: true,
+    website: "https://docs.digitalocean.com/products/ai-platform/",
+    hasFree: false,
+    notice: {
+      text: "Use a DigitalOcean Personal Access Token (dop_v1_...) or a Model Access Key from the Inference console. OAuth tokens (doo_v1_...) may not have the required scopes.",
+      apiKeyUrl: "https://cloud.digitalocean.com/account/api/tokens",
+    },
+    serviceKinds: ["llm"],
+  },
 };
diff --git a/tests/snapshots/provider/translate-path.json b/tests/snapshots/provider/translate-path.json
index 526725e1e8..4d6fefe15d 100644
--- a/tests/snapshots/provider/translate-path.json
+++ b/tests/snapshots/provider/translate-path.json
@@ -1324,6 +1324,29 @@
       "stream": "https://api.dify.ai/v1/chat/completions"
     }
   },
+  "digitalocean": {
+    "format": "openai",
+    "headers": {
+      "apiKey": {
+        "Accept": "text/event-stream",
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      },
+      "nonStream": {
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      },
+      "oauth": {
+        "Accept": "text/event-stream",
+        "Authorization": "Bearer <TOK>",
+        "Content-Type": "application/json"
+      }
+    },
+    "url": {
+      "nonStream": "https://inference.do-ai.run/v1/chat/completions",
+      "stream": "https://inference.do-ai.run/v1/chat/completions"
+    }
+  },
   "dit": {
     "format": "openai",
     "headers": {
diff --git a/tests/unit/digitalocean-provider.test.ts b/tests/unit/digitalocean-provider.test.ts
new file mode 100644
index 0000000000..3fed5c2a0b
--- /dev/null
+++ b/tests/unit/digitalocean-provider.test.ts
@@ -0,0 +1,43 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+const { APIKEY_PROVIDERS } = await import("../../src/shared/constants/providers.ts");
+const { REGISTRY: providerRegistry } = await import("../../open-sse/config/providerRegistry.ts");
+const { isValidModel } = await import("../../src/shared/constants/models.ts");
+
+const DO_CHAT_URL = "https://inference.do-ai.run/v1/chat/completions";
+const DO_MODELS_URL = "https://inference.do-ai.run/v1/models";
+
+test("digitalocean is registered as an API-key inference-host provider", () => {
+  const entry = APIKEY_PROVIDERS.digitalocean;
+  assert.ok(entry, "APIKEY_PROVIDERS.digitalocean must be defined");
+  assert.equal(entry.id, "digitalocean");
+  assert.equal(entry.alias, "digitalocean");
+  assert.equal(entry.name, "DigitalOcean");
+  assert.equal(entry.website, "https://docs.digitalocean.com/products/ai-platform/");
+  assert.equal(entry.passthroughModels, true);
+});
+
+test("digitalocean registry entry uses OpenAI format with bearer API-key auth", () => {
+  const entry = providerRegistry.digitalocean;
+  assert.ok(entry, "providerRegistry.digitalocean must be defined");
+  assert.equal(entry.id, "digitalocean");
+  assert.equal(entry.alias, "digitalocean");
+  assert.equal(entry.format, "openai");
+  assert.equal(entry.executor, "default");
+  assert.equal(entry.authType, "apikey");
+  assert.equal(entry.authHeader, "bearer");
+  assert.equal(entry.baseUrl, DO_CHAT_URL);
+  assert.equal(entry.modelsUrl, DO_MODELS_URL);
+  assert.equal(entry.passthroughModels, true);
+});
+
+test("digitalocean ships no static model seed — relies fully on passthrough + live catalog", () => {
+  assert.deepEqual(providerRegistry.digitalocean.models, []);
+});
+
+test("digitalocean accepts any model id via passthrough (serverless inference catalog)", () => {
+  assert.equal(isValidModel("digitalocean", "openai-gpt-oss-120b"), true);
+  assert.equal(isValidModel("digitalocean", "llama3.3-70b-instruct"), true);
+  assert.equal(isValidModel("digitalocean", "anthropic-claude-3.5-sonnet"), true);
+});
diff --git a/tests/unit/providers-constants-split.test.ts b/tests/unit/providers-constants-split.test.ts
index a871ec1a0f..18e564fe1e 100644
--- a/tests/unit/providers-constants-split.test.ts
+++ b/tests/unit/providers-constants-split.test.ts
@@ -1,7 +1,7 @@
 // Characterization of the providers.ts catalog split (god-file decomposition): the host became a
 // barrel that re-exports 10 data catalogs now living under constants/providers/*, and APIKEY is
 // merged from 6 semantic family files (apikey/<family>.ts). Locks: the public surface (every catalog
-// + helpers still exported), the spread-merge integrity (169 APIKEY entries, no loss/dup), and that
+// + helpers still exported), the spread-merge integrity (170 APIKEY entries, no loss/dup), and that
 // load-time Zod validation still runs. Pure-data move → behavior must be identical.
 import { test } from "node:test";
 import assert from "node:assert/strict";
@@ -31,12 +31,12 @@ test("barrel still exports every catalog + key helpers", () => {
   }
 });
 
-test("APIKEY_PROVIDERS merges the 6 family files into 169 entries (no loss / no dup)", async () => {
+test("APIKEY_PROVIDERS merges the 6 family files into 170 entries (no loss / no dup)", async () => {
   const keys = Object.keys((P as Record<string, object>).APIKEY_PROVIDERS);
-  assert.equal(keys.length, 169);
-  assert.equal(new Set(keys).size, 169, "duplicate keys after spread-merge");
+  assert.equal(keys.length, 170);
+  assert.equal(new Set(keys).size, 170, "duplicate keys after spread-merge");
   // the merged object's entry-count equals the sum of the 6 semantic family files; families are a
-  // strict partition (every provider in exactly one), so the sum must be exactly 169.
+  // strict partition (every provider in exactly one), so the sum must be exactly 170.
   const families: [string, string][] = [
     ["gateways", "APIKEY_PROVIDERS_GATEWAYS"],
     ["frontier-labs", "APIKEY_PROVIDERS_FRONTIER"],
@@ -56,7 +56,7 @@ test("APIKEY_PROVIDERS merges the 6 family files into 169 entries (no loss / no
       seen.add(k);
     }
   }
-  assert.equal(famTotal, 169, "families must partition all 169 providers");
+  assert.equal(famTotal, 170, "families must partition all 170 providers");
 });
 
 test("AI_PROVIDERS Proxy aggregates all sections; lookups resolve", () => {