diff --git a/open-sse/config/providers/index.ts b/open-sse/config/providers/index.ts
index 506eaeed13..837328e071 100644
--- a/open-sse/config/providers/index.ts
+++ b/open-sse/config/providers/index.ts
@@ -256,6 +256,8 @@ import { nagaAiProvider } from "./registry/naga-ai/index.ts";
 import { chatOripeProvider } from "./registry/chat-oripe/index.ts";
 import { freeinferenceProvider } from "./registry/freeinference/index.ts";
 import { freeAiProvider } from "./registry/free-ai/index.ts";
+import { voidAiProvider } from "./registry/void-ai/index.ts";
+import { helixmindProvider } from "./registry/helixmind/index.ts";
 
 export const REGISTRY: Record<string, RegistryEntry> = {
   aimlapi: aimlapiProvider,
@@ -513,4 +515,6 @@ export const REGISTRY: Record<string, RegistryEntry> = {
   "chat-oripe": chatOripeProvider,
   freeinference: freeinferenceProvider,
   "free-ai": freeAiProvider,
+  "void-ai": voidAiProvider,
+  helixmind: helixmindProvider,
 };
diff --git a/open-sse/config/providers/registry/helixmind/index.ts b/open-sse/config/providers/registry/helixmind/index.ts
new file mode 100644
index 0000000000..c8f4d3a529
--- /dev/null
+++ b/open-sse/config/providers/registry/helixmind/index.ts
@@ -0,0 +1,26 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const helixmindProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "helixmind",
+  alias: "helixmind",
+  baseUrl: "https://helixmind.online/v1/chat/completions",
+  modelsUrl: "https://helixmind.online/v1/models",
+  responsesBaseUrl: "https://helixmind.online/v1/responses",
+  models: [],
+  passthroughModels: true,
+  alternateFormats: [
+    {
+      format: "claude",
+      baseUrl: "https://helixmind.online/v1/messages",
+      authHeader: "x-api-key",
+      label: "Anthropic-compatible",
+    },
+    {
+      format: "openai-responses",
+      baseUrl: "https://helixmind.online/v1/responses",
+      authHeader: "bearer",
+      label: "OpenAI Responses",
+    },
+  ],
+});
diff --git a/open-sse/config/providers/registry/void-ai/index.ts b/open-sse/config/providers/registry/void-ai/index.ts
new file mode 100644
index 0000000000..95a4e8fff9
--- /dev/null
+++ b/open-sse/config/providers/registry/void-ai/index.ts
@@ -0,0 +1,12 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const voidAiProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "void-ai",
+  alias: "void-ai",
+  baseUrl: "https://api.voidai.app/v1/chat/completions",
+  modelsUrl: "https://api.voidai.app/v1/models",
+  responsesBaseUrl: "https://api.voidai.app/v1/responses",
+  models: [],
+  passthroughModels: true,
+});
diff --git a/src/shared/constants/config.ts b/src/shared/constants/config.ts
index 35b3be51d1..0ec376305a 100644
--- a/src/shared/constants/config.ts
+++ b/src/shared/constants/config.ts
@@ -34,6 +34,8 @@ export const PROVIDER_ENDPOINTS = {
   "chat-oripe": "https://api.oriper.com/v1/chat/completions",
   freeinference: "https://freeinference.org/v1/chat/completions",
   "free-ai": "https://api.free.ai/v1/chat/",
+  "void-ai": "https://api.voidai.app/v1/chat/completions",
+  helixmind: "https://helixmind.online/v1/chat/completions",
   glm: "https://api.z.ai/api/anthropic/v1/messages",
   glmt: "https://api.z.ai/api/anthropic/v1/messages",
   "bailian-coding-plan": "https://coding-intl.dashscope.aliyuncs.com/apps/anthropic/v1/messages",
diff --git a/src/shared/constants/providers.ts b/src/shared/constants/providers.ts
index 93150eab7b..522a7e0bdd 100644
--- a/src/shared/constants/providers.ts
+++ b/src/shared/constants/providers.ts
@@ -119,6 +119,8 @@ export const AGGREGATOR_PROVIDER_IDS = new Set([
   "chat-oripe",
   "freeinference",
   "free-ai",
+  "void-ai",
+  "helixmind",
 ]);
 
 export const ENTERPRISE_CLOUD_PROVIDER_IDS = new Set([
diff --git a/src/shared/constants/providers/apikey/audited-free-gateways.ts b/src/shared/constants/providers/apikey/audited-free-gateways.ts
index 301614fcc7..c3505b5e02 100644
--- a/src/shared/constants/providers/apikey/audited-free-gateways.ts
+++ b/src/shared/constants/providers/apikey/audited-free-gateways.ts
@@ -392,4 +392,34 @@ export const APIKEY_PROVIDERS_AUDITED_FREE = {
     apiHint:
       "Create an sk-free- key, then use the nonstandard but OpenAI-shaped https://api.free.ai/v1/chat/ endpoint. Select a self-hosted zero-price model to stay within the free pool.",
   },
+  "void-ai": {
+    id: "void-ai",
+    alias: "void-ai",
+    name: "Void AI",
+    icon: "science",
+    color: "#111827",
+    textIcon: "VA",
+    passthroughModels: true,
+    website: "https://voidai.app",
+    hasFree: true,
+    freeNote:
+      "The public model catalog marks some models with a free plan requirement, but access is conditional and no numeric quota is confirmed.",
+    apiHint:
+      "Use https://api.voidai.app/v1 only after confirming authentication, account eligibility and terms. Treat this integration as experimental until the blocked documentation becomes public.",
+  },
+  helixmind: {
+    id: "helixmind",
+    alias: "helixmind",
+    name: "HelixMind",
+    icon: "hub",
+    color: "#4F46E5",
+    textIcon: "HM",
+    passthroughModels: true,
+    website: "https://helixmind.online",
+    hasFree: false,
+    freeNote:
+      "Previously circulated 3 RPM/50 RPD and no-card claims were not confirmed during the 2026-08-02 audit; current quota and billing require account verification.",
+    apiHint:
+      "Create a helix- key and use https://helixmind.online/v1. OpenAI requests use Bearer authentication; the Anthropic-compatible messages endpoint accepts x-api-key.",
+  },
 };
diff --git a/tests/unit/free-tier-providers-wave5-integration.test.ts b/tests/unit/free-tier-providers-wave5-integration.test.ts
new file mode 100644
index 0000000000..48d24c2081
--- /dev/null
+++ b/tests/unit/free-tier-providers-wave5-integration.test.ts
@@ -0,0 +1,101 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { deriveConfigFromRegistryModelsUrl } from "../../src/app/api/providers/[id]/models/discoveryConfig.ts";
+
+const { REGISTRY } = await import("../../open-sse/config/providerRegistry.ts");
+const { DefaultExecutor, getExecutor, hasSpecializedExecutor } =
+  await import("../../open-sse/executors/index.ts");
+const { PROVIDER_ENDPOINTS } = await import("../../src/shared/constants/config.ts");
+const { isValidModel } = await import("../../src/shared/constants/models.ts");
+const { AGGREGATOR_PROVIDER_IDS } = await import("../../src/shared/constants/providers.ts");
+const { APIKEY_PROVIDERS } = await import("../../src/shared/constants/providers/apikey/index.ts");
+
+const providers = [
+  {
+    id: "void-ai",
+    endpoint: "https://api.voidai.app/v1/chat/completions",
+    modelsUrl: "https://api.voidai.app/v1/models",
+    hasFree: true,
+  },
+  {
+    id: "helixmind",
+    endpoint: "https://helixmind.online/v1/chat/completions",
+    modelsUrl: "https://helixmind.online/v1/models",
+    hasFree: false,
+  },
+] as const;
+
+for (const { id, endpoint, modelsUrl, hasFree } of providers) {
+  test(`${id} is fully wired through the public provider interfaces`, () => {
+    const registry = REGISTRY[id];
+    const metadata = APIKEY_PROVIDERS[id];
+
+    assert.ok(registry);
+    assert.ok(metadata);
+    assert.equal(registry.id, id);
+    assert.equal(registry.alias, id);
+    assert.equal(registry.format, "openai");
+    assert.equal(registry.executor, "default");
+    assert.equal(registry.authType, "apikey");
+    assert.equal(registry.authHeader, "bearer");
+    assert.equal(registry.baseUrl, endpoint);
+    assert.equal(registry.modelsUrl, modelsUrl);
+    assert.equal(registry.passthroughModels, true);
+    assert.deepEqual(registry.models, []);
+
+    assert.equal(PROVIDER_ENDPOINTS[id], endpoint);
+    assert.equal(metadata.id, id);
+    assert.equal(metadata.alias, id);
+    assert.equal(metadata.hasFree, hasFree);
+    assert.equal(metadata.passthroughModels, true);
+    assert.equal(AGGREGATOR_PROVIDER_IDS.has(id), true);
+    assert.equal(hasSpecializedExecutor(id), false);
+
+    const executor = getExecutor(id);
+    assert.ok(executor instanceof DefaultExecutor);
+    assert.equal(executor.buildUrl("live-model", false), endpoint);
+    assert.equal(isValidModel(id, "future/live-catalog-model"), true);
+
+    const discovery = deriveConfigFromRegistryModelsUrl(id);
+    assert.ok(discovery);
+    assert.equal(discovery.url, modelsUrl);
+    assert.deepEqual(discovery.parseResponse({ object: "list", data: [{ id: "live-model" }] }), [
+      { id: "live-model" },
+    ]);
+  });
+}
+
+test("Void AI metadata keeps the free-plan signal conditional", () => {
+  const metadata = APIKEY_PROVIDERS["void-ai"];
+
+  assert.match(metadata.freeNote ?? "", /free plan/i);
+  assert.match(metadata.freeNote ?? "", /conditional/i);
+  assert.match(metadata.freeNote ?? "", /no numeric quota/i);
+  assert.match(metadata.apiHint ?? "", /authentication.*account.*terms/i);
+});
+
+test("HelixMind exposes its verified alternate API surfaces without reviving old quota claims", () => {
+  const registry = REGISTRY.helixmind;
+  const metadata = APIKEY_PROVIDERS.helixmind;
+
+  assert.equal(registry.responsesBaseUrl, "https://helixmind.online/v1/responses");
+  assert.deepEqual(registry.alternateFormats, [
+    {
+      format: "claude",
+      baseUrl: "https://helixmind.online/v1/messages",
+      authHeader: "x-api-key",
+      label: "Anthropic-compatible",
+    },
+    {
+      format: "openai-responses",
+      baseUrl: "https://helixmind.online/v1/responses",
+      authHeader: "bearer",
+      label: "OpenAI Responses",
+    },
+  ]);
+  assert.match(metadata.freeNote ?? "", /3 RPM\/50 RPD/i);
+  assert.match(metadata.freeNote ?? "", /no-card/i);
+  assert.match(metadata.freeNote ?? "", /not confirmed/i);
+  assert.doesNotMatch(metadata.freeNote ?? "", /free forever|unlimited/i);
+});