fix(opencode_go): authenticate with OPENCODE_API_KEY

OpenCode Zen and Go share OPENCODE_API_KEY and opencode_api_key; Remove OPENCODE_GO_API_KEY and settings field.

.env.example

@@ -18,14 +18,10 @@ KIMI_API_KEY=""
 WAFER_API_KEY=""
 
 
-# OpenCode Zen Config (OpenAI-compatible Chat Completions at opencode.ai/zen/v1)
+# OpenCode Zen (opencode.ai/zen/v1) and OpenCode Go (opencode.ai/zen/go/v1) share OPENCODE_API_KEY
 OPENCODE_API_KEY=""
 
 
-# OpenCode Go Config (OpenAI-compatible Chat Completions at opencode.ai/zen/go/v1)
-OPENCODE_GO_API_KEY=""
-
-
 # Z.ai Config (Anthropic-compatible Messages at api.z.ai/api/anthropic)
 ZAI_API_KEY=""
 

README.md

@@ -207,7 +207,7 @@ In the Admin UI, keep or update `OLLAMA_BASE_URL`, then set `MODEL` to the same
 
 Get an API key at [opencode.ai/auth](https://opencode.ai/auth).
 
-In the Admin UI, paste it into `OPENCODE_API_KEY`, then set `MODEL` to an OpenCode Zen model slug such as `opencode/gpt-5.3-codex`.
+In the Admin UI, paste it into `OPENCODE_API_KEY`, then set `MODEL` to an OpenCode Zen model slug such as `opencode/gpt-5.3-codex`. The same `OPENCODE_API_KEY` powers **OpenCode Go** (below); use `opencode_go/` slugs there.
 
 OpenCode Zen is a curated model gateway that provides access to models from Anthropic, OpenAI, Google, DeepSeek, and more through a single API key and OpenAI-compatible endpoint at `https://opencode.ai/zen/v1`.
 
@@ -224,15 +224,15 @@ Browse available models at [opencode.ai](https://opencode.ai).
 
 ### 10. [OpenCode Go](https://opencode.ai/)
 
-Get an API key at [opencode.ai/auth](https://opencode.ai/auth).
+Get an API key at [opencode.ai/auth](https://opencode.ai/auth) (same as OpenCode Zen).
 
-In the Admin UI, paste it into `OPENCODE_GO_API_KEY`, then set `MODEL` to an OpenCode Go model slug such as `opencode_go/gpt-5.3-codex`.
+In the Admin UI, use `OPENCODE_API_KEY`, then set `MODEL` to an OpenCode Go model slug such as `opencode_go/minimax-m2.7`.
 
-OpenCode Go is a separate subscription gateway from OpenCode Zen. It uses an OpenAI-compatible endpoint at `https://opencode.ai/zen/go/v1` and its own API key (`OPENCODE_GO_API_KEY`), distinct from `OPENCODE_API_KEY`.
+OpenCode Go is a subscription gateway with its own curated catalog and OpenAI-compatible endpoint at `https://opencode.ai/zen/go/v1`. It shares the **same OpenCode API key** as Zen; only the slug prefix (`opencode_go/` vs `opencode/`) and upstream path differ.
 
 Popular examples:
 
-- `opencode_go/gpt-5.3-codex`
+- `opencode_go/minimax-m2.7`
 
 Browse available models at [opencode.ai](https://opencode.ai).
 

api/admin_config.py

@@ -160,21 +160,15 @@ FIELDS: tuple[ConfigFieldSpec, ...] = (
     ),
     ConfigFieldSpec(
         "OPENCODE_API_KEY",
-        "OpenCode Zen API Key",
+        "OpenCode API Key",
         "providers",
         "secret",
         settings_attr="opencode_api_key",
         secret=True,
-        description="OpenCode Zen curated model gateway at opencode.ai.",
+        description=(
-    ),
+            "OpenCode Zen curated gateway (opencode.ai/zen/v1) and OpenCode Go subscription "
-    ConfigFieldSpec(
+            "gateway (opencode.ai/zen/go/v1); single key from opencode.ai/auth."
-        "OPENCODE_GO_API_KEY",
+        ),
-        "OpenCode Go API Key",
-        "providers",
-        "secret",
-        settings_attr="opencode_go_api_key",
-        secret=True,
-        description="OpenCode Go subscription gateway at opencode.ai.",
     ),
     ConfigFieldSpec(
         "ZAI_API_KEY",

config/provider_catalog.py

@@ -141,9 +141,9 @@ PROVIDER_CATALOG: dict[str, ProviderDescriptor] = {
     "opencode_go": ProviderDescriptor(
         provider_id="opencode_go",
         transport_type="openai_chat",
-        credential_env="OPENCODE_GO_API_KEY",
+        credential_env="OPENCODE_API_KEY",
         credential_url="https://opencode.ai/auth",
-        credential_attr="opencode_go_api_key",
+        credential_attr="opencode_api_key",
         default_base_url=OPENCODE_GO_DEFAULT_BASE,
         proxy_attr="opencode_go_proxy",
         capabilities=("chat", "streaming", "tools", "thinking", "rate_limit"),

config/settings.py

@@ -119,12 +119,10 @@ class Settings(BaseSettings):
     # ==================== Wafer Config ====================
     wafer_api_key: str = Field(default="", validation_alias="WAFER_API_KEY")
 
-    # ==================== OpenCode Zen Config ====================
+    # ==================== OpenCode Zen / OpenCode Go ====================
+    # Same key from opencode.ai/auth; zen uses prefix ``opencode/``, Go uses ``opencode_go/``.
     opencode_api_key: str = Field(default="", validation_alias="OPENCODE_API_KEY")
 
-    # ==================== OpenCode Go Config ====================
-    opencode_go_api_key: str = Field(default="", validation_alias="OPENCODE_GO_API_KEY")
-
     # ==================== Z.ai Config ====================
     zai_api_key: str = Field(default="", validation_alias="ZAI_API_KEY")
 

smoke/lib/config.py

@@ -50,7 +50,7 @@ PROVIDER_SMOKE_DEFAULT_MODELS: dict[str, str] = {
     "ollama": "ollama/llama3.1",
     "wafer": "wafer/DeepSeek-V4-Pro",
     "opencode": "opencode/gpt-5.3-codex",
-    "opencode_go": "opencode_go/gpt-5.3-codex",
+    "opencode_go": "opencode_go/minimax-m2.7",
     "zai": "zai/glm-5.1",
 }
 

tests/api/test_dependencies.py

@@ -38,7 +38,6 @@ def _make_mock_settings(**overrides):
     mock.deepseek_api_key = "test_deepseek_key"
     mock.wafer_api_key = "test_wafer_key"
     mock.opencode_api_key = "test_opencode_key"
-    mock.opencode_go_api_key = "test_opencode_go_key"
     mock.zai_api_key = "test_zai_key"
     mock.lm_studio_base_url = "http://localhost:1234/v1"
     mock.ollama_base_url = "http://localhost:11434"

tests/contracts/test_smoke_config.py

@@ -28,7 +28,6 @@ def _settings(**overrides):
         "deepseek_api_key": "",
         "wafer_api_key": "",
         "opencode_api_key": "",
-        "opencode_go_api_key": "",
         "zai_api_key": "",
         "lm_studio_base_url": "",
         "llamacpp_base_url": "",

tests/providers/test_model_validation.py

@@ -34,7 +34,6 @@ def _settings(
     deepseek_api_key: str = "",
     wafer_api_key: str = "",
     opencode_api_key: str = "",
-    opencode_go_api_key: str = "",
     zai_api_key: str = "",
 ) -> Settings:
     return Settings.model_construct(
@@ -47,7 +46,6 @@ def _settings(
         deepseek_api_key=deepseek_api_key,
         wafer_api_key=wafer_api_key,
         opencode_api_key=opencode_api_key,
-        opencode_go_api_key=opencode_go_api_key,
         zai_api_key=zai_api_key,
         log_api_error_tracebacks=False,
     )

tests/providers/test_registry.py

@@ -5,7 +5,7 @@ from unittest.mock import AsyncMock, MagicMock, patch
 import pytest
 
 from config.nim import NimSettings
-from config.provider_catalog import ZAI_DEFAULT_BASE
+from config.provider_catalog import PROVIDER_CATALOG, ZAI_DEFAULT_BASE
 from config.provider_ids import SUPPORTED_PROVIDER_IDS
 from providers.deepseek import DeepSeekProvider
 from providers.exceptions import UnknownProviderTypeError
@@ -34,7 +34,6 @@ def _make_settings(**overrides):
     mock.deepseek_api_key = "test_deepseek_key"
     mock.wafer_api_key = "test_wafer_key"
     mock.opencode_api_key = "test_opencode_key"
-    mock.opencode_go_api_key = "test_opencode_go_key"
     mock.zai_api_key = "test_zai_key"
     mock.lm_studio_base_url = "http://localhost:1234/v1"
     mock.llamacpp_base_url = "http://localhost:8080/v1"
@@ -118,7 +117,23 @@ def test_opencode_go_provider_config_uses_correct_base_url_and_name():
     assert isinstance(provider, OpenCodeProvider)
     assert provider._base_url == "https://opencode.ai/zen/go/v1"
     assert provider._provider_name == "OPENCODE_GO"
-    assert provider._api_key == "test_opencode_go_key"
+    assert provider._api_key == "test_opencode_key"
+
+
+def test_opencode_go_catalog_uses_opencode_api_key() -> None:
+    desc = PROVIDER_CATALOG["opencode_go"]
+
+    assert desc.credential_env == "OPENCODE_API_KEY"
+    assert desc.credential_attr == "opencode_api_key"
+
+
+def test_build_provider_config_opencode_go_uses_opencode_api_key() -> None:
+    descriptor = PROVIDER_CATALOG["opencode_go"]
+    settings = _make_settings(opencode_api_key="shared-opencode-token")
+
+    config = build_provider_config(descriptor, settings)
+
+    assert config.api_key == "shared-opencode-token"
 
 
 def test_create_provider_uses_native_openrouter_by_default():