diff --git a/modules/home/terminal/opencode/default.nix b/modules/home/terminal/opencode/default.nix
index 1fa74cc..1d8634d 100644
--- a/modules/home/terminal/opencode/default.nix
+++ b/modules/home/terminal/opencode/default.nix
@@ -2,8 +2,11 @@
   lib,
   config,
   pkgs,
+  osConfig,
   ...
-}: {
+}: let
+  a2a = osConfig.mods.server.auth2api;
+in {
   options.mods.opencode.enable = lib.mkEnableOption "enables opencode";
 
   # imports = [
@@ -21,6 +24,16 @@
       settings = {
         "plugin" = ["opencode-gemini-auth" "opencode-anthropic-oauth"];
 
+        "provider" = {
+          "auth2api" = {
+            "npm" = "@ai-sdk/openai-compatible";
+            "name" = "auth2api (local)";
+            "options" = {
+              "baseURL" = "http://${a2a.host}:${toString a2a.port}/v1";
+            };
+          };
+        };
+
         "mode" = {
           "build" = {
             "prompt" = "You are Claude Code, Anthropic's official CLI for Claude.";