diff --git a/README.md b/README.md
index a62da82..64ae157 100644
--- a/README.md
+++ b/README.md
@@ -811,6 +811,7 @@ Config file: `~/.nanobot/config.json`
 <summary><b>OpenAI Codex (OAuth)</b></summary>
 
 Codex uses OAuth instead of API keys. Requires a ChatGPT Plus or Pro account.
+No `providers.openaiCodex` block is needed in `config.json`; `nanobot provider login` stores the OAuth session outside config.
 
 **1. Login:**
 ```bash
@@ -845,13 +846,14 @@ nanobot agent -c ~/.nanobot-telegram/config.json -w /tmp/nanobot-telegram-test -
 
 
 <details>
-<summary><b>Github Copilot (OAuth)</b></summary>
+<summary><b>GitHub Copilot (OAuth)</b></summary>
 
-Github Copilot uses OAuth instead of API keys. Requires a [Github account with a plan](https://github.com/features/copilot/plans) configured.
+GitHub Copilot uses OAuth instead of API keys. Requires a [GitHub account with a plan](https://github.com/features/copilot/plans) configured.
+No `providers.githubCopilot` block is needed in `config.json`; `nanobot provider login` stores the OAuth session outside config.
 
 **1. Login:**
 ```bash
-nanobot provider login github_copilot
+nanobot provider login github-copilot
 ```
 
 **2. Set model** (merge into `~/.nanobot/config.json`):
diff --git a/nanobot/cli/onboard_wizard.py b/nanobot/cli/onboard_wizard.py
index 2537dcc..eca86bf 100644
--- a/nanobot/cli/onboard_wizard.py
+++ b/nanobot/cli/onboard_wizard.py
@@ -664,6 +664,7 @@ def _get_provider_info() -> dict[str, tuple[str, bool, bool, str]]:
             spec.default_api_base,
         )
         for spec in PROVIDERS
+        if not spec.is_oauth
     }
 
 
diff --git a/nanobot/config/schema.py b/nanobot/config/schema.py
index 607bd7a..c884433 100644
--- a/nanobot/config/schema.py
+++ b/nanobot/config/schema.py
@@ -78,7 +78,7 @@ class ProvidersConfig(Base):
     volcengine_coding_plan: ProviderConfig = Field(default_factory=ProviderConfig)  # VolcEngine Coding Plan
     byteplus: ProviderConfig = Field(default_factory=ProviderConfig)  # BytePlus (VolcEngine international)
     byteplus_coding_plan: ProviderConfig = Field(default_factory=ProviderConfig)  # BytePlus Coding Plan
-    openai_codex: ProviderConfig = Field(default_factory=ProviderConfig)  # OpenAI Codex (OAuth)
+    openai_codex: ProviderConfig = Field(default_factory=ProviderConfig, exclude=True)  # OpenAI Codex (OAuth)
     github_copilot: ProviderConfig = Field(default_factory=ProviderConfig, exclude=True)  # Github Copilot (OAuth)
 
 
diff --git a/tests/test_commands.py b/tests/test_commands.py
index 6020856..124802e 100644
--- a/tests/test_commands.py
+++ b/tests/test_commands.py
@@ -213,6 +213,15 @@ def test_config_matches_openai_codex_with_hyphen_prefix():
     assert config.get_provider_name() == "openai_codex"
 
 
+def test_config_dump_excludes_oauth_provider_blocks():
+    config = Config()
+
+    providers = config.model_dump(by_alias=True)["providers"]
+
+    assert "openaiCodex" not in providers
+    assert "githubCopilot" not in providers
+
+
 def test_config_matches_explicit_ollama_prefix_without_api_key():
     config = Config()
     config.agents.defaults.model = "ollama/llama3.2"
diff --git a/tests/test_onboard_logic.py b/tests/test_onboard_logic.py
index fbcb4fb..9e0f6f7 100644
--- a/tests/test_onboard_logic.py
+++ b/tests/test_onboard_logic.py
@@ -359,6 +359,8 @@ class TestProviderChannelInfo:
         assert len(names) > 0
         # Should include common providers
         assert "openai" in names or "anthropic" in names
+        assert "openai_codex" not in names
+        assert "github_copilot" not in names
 
     def test_get_channel_names_returns_dict(self):
         from nanobot.cli.onboard_wizard import _get_channel_names