diff --git a/packages/core/src/plugin/models-dev.ts b/packages/core/src/plugin/models-dev.ts
index 075a6ed093c6..17b1c03c2cb7 100644
--- a/packages/core/src/plugin/models-dev.ts
+++ b/packages/core/src/plugin/models-dev.ts
@@ -10,6 +10,19 @@ function released(date: string) {
   return Number.isFinite(time) ? time : 0
 }
 
+const CREDENTIAL_ENV_SUFFIXES = ["_API_KEY", "_TOKEN", "_PAT"]
+
+// models.dev lists env vars in setup order, so account/host/region/project names
+// that configure a provider often precede the actual credential (e.g. Cloudflare's
+// `[CLOUDFLARE_ACCOUNT_ID, CLOUDFLARE_API_KEY]`). Connection resolution picks the
+// first set var, so an unfiltered list can hand a non-secret value out as the
+// bearer key. Narrow to credential-shaped names when any exist; otherwise fall
+// back to the full list rather than guess wrong for an unfamiliar naming scheme.
+function credentialEnvNames(names: readonly string[]) {
+  const credentials = names.filter((name) => CREDENTIAL_ENV_SUFFIXES.some((suffix) => name.endsWith(suffix)))
+  return credentials.length > 0 ? credentials : [...names]
+}
+
 function cost(input: ModelsDev.Model["cost"]): ModelV2Info["cost"] {
   const base = {
     input: input?.input ?? 0,
@@ -134,7 +147,7 @@ export const ModelsDevPlugin = define({
           })
           integrations.method.update({
             integrationID,
-            method: { type: "env", names: [...item.env] },
+            method: { type: "env", names: credentialEnvNames(item.env) },
           })
         }
       }),
diff --git a/packages/core/test/plugin/fixtures/models-dev.json b/packages/core/test/plugin/fixtures/models-dev.json
index fb8f2622be35..e307c35ed736 100644
--- a/packages/core/test/plugin/fixtures/models-dev.json
+++ b/packages/core/test/plugin/fixtures/models-dev.json
@@ -10,5 +10,11 @@
     "name": "Local",
     "env": [],
     "models": {}
+  },
+  "cloudy": {
+    "id": "cloudy",
+    "name": "Cloudy",
+    "env": ["CLOUDY_ACCOUNT_ID", "CLOUDY_API_KEY"],
+    "models": {}
   }
 }
diff --git a/packages/core/test/plugin/models-dev.test.ts b/packages/core/test/plugin/models-dev.test.ts
index 6c0f7e070296..4b3d15bf2f37 100644
--- a/packages/core/test/plugin/models-dev.test.ts
+++ b/packages/core/test/plugin/models-dev.test.ts
@@ -158,6 +158,19 @@ describe("ModelsDevPlugin", () => {
               ],
               connections: [],
             }),
+            new Integration.Info({
+              id: Integration.ID.make("cloudy"),
+              name: "Cloudy",
+              methods: [
+                { type: "key" },
+                {
+                  // CLOUDY_ACCOUNT_ID is not a credential; only the key-shaped name is registered.
+                  type: "env",
+                  names: ["CLOUDY_API_KEY"],
+                },
+              ],
+              connections: [],
+            }),
           ])
         }).pipe(Effect.provide(AppNodeBuilder.build(ModelsDev.node))),
       (previous) =>