feat(cline): expose the cline-free/* tier and price it at zero (#4334)

open-sse/services/clinepassModels.js

@@ -1,6 +1,12 @@
 import { buildClineHeaders } from "../shared/clineAuth.js";
 
 const CLINEPASS_MODELS_ENDPOINT = "https://api.cline.bot/api/v1/models";
+// Cline's free tier is published here, not in /api/v1/models: the catalog
+// endpoint carries no `cline-free/*` ids at all. Cline's own SDK calls this
+// feed unauthenticated (sdk/packages/core/src/services/llms/cline-recommended-models.ts),
+// so no Authorization header is sent — adding one would only make the request
+// fail on a header the endpoint ignores.
+const CLINE_RECOMMENDED_MODELS_ENDPOINT = "https://api.cline.bot/api/v1/ai/cline/recommended-models";
 const FETCH_TIMEOUT_MS = 5000;
 
 /**
@@ -72,6 +78,40 @@ export async function resolveClinepassModels(credentials) {
   return models.length ? { models } : null;
 }
 
+/**
+ * Fetch Cline's recommended-models feed and return only its `free[]` tier.
+ * Returns null on any failure — the free tier is additive, so a dead feed must
+ * never take the /api/v1/models catalog down with it.
+ * @param {{accessToken?: string, apiKey?: string}} credentials
+ * @returns {Promise<{id: string, name: string}[] | null>}
+ */
+async function fetchClineFreeTierModels() {
+  const controller = new AbortController();
+  const timer = setTimeout(() => controller.abort(), FETCH_TIMEOUT_MS);
+
+  try {
+    const response = await fetch(CLINE_RECOMMENDED_MODELS_ENDPOINT, {
+      method: "GET",
+      headers: { Accept: "application/json" },
+      signal: controller.signal,
+    });
+
+    if (!response.ok) return null;
+
+    const json = await response.json();
+    const free = Array.isArray(json?.free) ? json.free : [];
+    if (!free.length) return null;
+
+    return free
+      .filter((m) => typeof m?.id === "string" && m.id.trim() !== "")
+      .map((m) => ({ id: m.id, name: m.name || m.id }));
+  } catch {
+    return null;
+  } finally {
+    clearTimeout(timer);
+  }
+}
+
 /**
  * Fetch Cline live model catalog from Cline's /models endpoint.
  * Unlike resolveClinepassModels, this returns ALL models (including
@@ -91,5 +131,15 @@ export async function resolveClineModels(credentials) {
       name: m.name || m.id,
     }));
 
-  return models.length ? { models } : null;
+  // Free tier: /api/v1/models lists no `cline-free/*` ids, so merge the feed's
+  // free[] in. First writer wins on a shared id, keeping the catalog's entry
+  // for anything the two sources agree on.
+  const freeTier = await fetchClineFreeTierModels();
+  const byId = new Map(models.map((m) => [m.id, m]));
+  for (const m of freeTier || []) {
+    if (!byId.has(m.id)) byId.set(m.id, m);
+  }
+  const merged = Array.from(byId.values());
+
+  return merged.length ? { models: merged } : null;
 }