diff --git a/open-sse/config/providers/registry/anyapi/index.ts b/open-sse/config/providers/registry/anyapi/index.ts
new file mode 100644
index 0000000000..fcb118a771
--- /dev/null
+++ b/open-sse/config/providers/registry/anyapi/index.ts
@@ -0,0 +1,11 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const anyapiProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "anyapi",
+  alias: "anyapi",
+  baseUrl: "https://api.anyapi.ai/v1/chat/completions",
+  modelsUrl: "https://api.anyapi.ai/v1/models",
+  models: [],
+  passthroughModels: true,
+});
diff --git a/open-sse/config/providers/registry/electronhub/index.ts b/open-sse/config/providers/registry/electronhub/index.ts
new file mode 100644
index 0000000000..b1b0cce56f
--- /dev/null
+++ b/open-sse/config/providers/registry/electronhub/index.ts
@@ -0,0 +1,11 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const electronhubProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "electronhub",
+  alias: "electronhub",
+  baseUrl: "https://api.electronhub.ai/v1/chat/completions",
+  modelsUrl: "https://api.electronhub.ai/v1/models",
+  models: [],
+  passthroughModels: true,
+});
diff --git a/open-sse/config/providers/registry/fastrouter/index.ts b/open-sse/config/providers/registry/fastrouter/index.ts
new file mode 100644
index 0000000000..622c612065
--- /dev/null
+++ b/open-sse/config/providers/registry/fastrouter/index.ts
@@ -0,0 +1,11 @@
+import type { RegistryEntry } from "../../shared.ts";
+import { buildOpenAiCompatibleRegistryEntry } from "../../shared.ts";
+
+export const fastrouterProvider: RegistryEntry = buildOpenAiCompatibleRegistryEntry({
+  id: "fastrouter",
+  alias: "fastrouter",
+  baseUrl: "https://api.fastrouter.ai/api/v1/chat/completions",
+  modelsUrl: "https://api.fastrouter.ai/api/v1/models",
+  models: [],
+  passthroughModels: true,
+});
diff --git a/tests/unit/free-tier-providers-wave1-b.test.ts b/tests/unit/free-tier-providers-wave1-b.test.ts
new file mode 100644
index 0000000000..f478851fa6
--- /dev/null
+++ b/tests/unit/free-tier-providers-wave1-b.test.ts
@@ -0,0 +1,51 @@
+import assert from "node:assert/strict";
+import test from "node:test";
+
+import { anyapiProvider } from "../../open-sse/config/providers/registry/anyapi/index.ts";
+import { electronhubProvider } from "../../open-sse/config/providers/registry/electronhub/index.ts";
+import { fastrouterProvider } from "../../open-sse/config/providers/registry/fastrouter/index.ts";
+import type { RegistryEntry } from "../../open-sse/config/providers/shared.ts";
+
+const providers: Array<{
+  entry: RegistryEntry;
+  id: string;
+  chatUrl: string;
+  modelsUrl: string;
+}> = [
+  {
+    entry: fastrouterProvider,
+    id: "fastrouter",
+    chatUrl: "https://api.fastrouter.ai/api/v1/chat/completions",
+    modelsUrl: "https://api.fastrouter.ai/api/v1/models",
+  },
+  {
+    entry: anyapiProvider,
+    id: "anyapi",
+    chatUrl: "https://api.anyapi.ai/v1/chat/completions",
+    modelsUrl: "https://api.anyapi.ai/v1/models",
+  },
+  {
+    entry: electronhubProvider,
+    id: "electronhub",
+    chatUrl: "https://api.electronhub.ai/v1/chat/completions",
+    modelsUrl: "https://api.electronhub.ai/v1/models",
+  },
+];
+
+for (const { entry, id, chatUrl, modelsUrl } of providers) {
+  test(`${id} uses the standard OpenAI-compatible API-key registry shape`, () => {
+    assert.equal(entry.id, id);
+    assert.equal(entry.alias, id);
+    assert.equal(entry.format, "openai");
+    assert.equal(entry.executor, "default");
+    assert.equal(entry.authType, "apikey");
+    assert.equal(entry.authHeader, "bearer");
+    assert.equal(entry.baseUrl, chatUrl);
+    assert.equal(entry.modelsUrl, modelsUrl);
+    assert.equal(entry.passthroughModels, true);
+  });
+
+  test(`${id} relies on its live catalog without invented static model ids`, () => {
+    assert.deepEqual(entry.models, []);
+  });
+}