diff --git a/atroposlib/envs/server_handling/managed_server.py b/atroposlib/envs/server_handling/managed_server.py
index cbc97268..7b26b5c1 100644
--- a/atroposlib/envs/server_handling/managed_server.py
+++ b/atroposlib/envs/server_handling/managed_server.py
@@ -509,3 +509,63 @@ class ManagedServer:
             self.sequences.clear()
         else:
             self.current_nodes.clear()
+
+
+class ManagedServerAdapter:
+    """
+    Adapter that makes ManagedServer look like AsyncOpenAI for external libraries.
+
+    Implements the subset of AsyncOpenAI interface commonly used:
+    - client.chat.completions.create()
+    - client.completions.create()
+    - client.base_url
+
+    This allows libraries like verifiers to use ManagedServer transparently
+    while still getting automatic token and logprob tracking.
+    """
+
+    def __init__(self, managed_server: ManagedServer, base_url: str):
+        """
+        Initialize the adapter.
+
+        Args:
+            managed_server: The ManagedServer instance to wrap
+            base_url: The base URL to expose (for compatibility checks)
+        """
+        self._managed = managed_server
+        self.base_url = base_url
+        self.chat = self._ChatNamespace(self._managed)
+        self.completions = self._CompletionsNamespace(self._managed)
+
+    class _ChatNamespace:
+        def __init__(self, managed: ManagedServer):
+            self._managed = managed
+            self.completions = ManagedServerAdapter._ChatCompletionsNamespace(managed)
+
+    class _ChatCompletionsNamespace:
+        def __init__(self, managed: ManagedServer):
+            self._managed = managed
+
+        async def create(self, **kwargs):
+            return await self._managed.chat_completion(**kwargs)
+
+    class _CompletionsNamespace:
+        def __init__(self, managed: ManagedServer):
+            self._managed = managed
+
+        async def create(self, **kwargs):
+            return await self._managed.completion(**kwargs)
+
+    async def post(self, path: str, body: dict, cast_to: type):
+        """Not supported - raises NotImplementedError."""
+        raise NotImplementedError(
+            f"ManagedServerAdapter does not support post() for path '{path}'. "
+            "This is used for vLLM interleaved rollouts. Use standard chat completions."
+        )
+
+    def copy(self, **kwargs):
+        """Not supported - raises NotImplementedError."""
+        raise NotImplementedError(
+            "ManagedServerAdapter does not support copy(). "
+            "This is used for vLLM tokenization endpoints."
+        )
diff --git a/environments/README.md b/environments/README.md
index 5473460b..67bcb6f6 100644
--- a/environments/README.md
+++ b/environments/README.md
@@ -66,9 +66,9 @@ A flexible environment that integrates with the [Verifiers](https://docs.primein
 
 **Output (Evaluation - `verifiers_eval.py`):**
 
-Uses `evaluate_log()` from `atroposlib.envs.eval` to output:
+Uses `evaluate_log()` from `BaseEnv` to output:
 - Console: Metrics table with accuracy, avg_score, time, and per-reward function breakdown
-- File: `metrics.json` and `samples.jsonl` (when `--eval-dir` is specified)
+- File: `metrics.json` and `samples.jsonl` (when `--env.data_dir_to_save_evals` is specified)
 
 **Configuration Options (`VfEnvConfig` for `verifiers_server.py`):**
 
@@ -79,17 +79,19 @@ Uses `evaluate_log()` from `atroposlib.envs.eval` to output:
 
 **CLI Options (`verifiers_eval.py`):**
 
+Uses the standard BaseEnv CLI pattern with `evaluate` subcommand. Key options:
+
 | Option | Type | Default | Description |
 |--------|------|---------|-------------|
-| `--server-url` | str | `http://localhost:8000/v1` | URL of the inference server |
-| `--model-name` | str | (required) | Model name to evaluate |
-| `--api-key` | str | `$OPENAI_API_KEY` | API key (defaults to env var) |
-| `--vf-env-name` | str | `primeintellect/gsm8k` | Prime environment identifier |
-| `--temperature` | float | `0.0` | Temperature for generation |
-| `--max-tokens` | int | `2048` | Maximum tokens per completion |
-| `--max-eval-items` | int | `-1` | Maximum items to evaluate (-1 for all) |
-| `--max-concurrent` | int | `64` | Maximum concurrent requests |
-| `--eval-dir` | str | `None` | Directory to save evaluation results |
+| `--openai.base_url` | str | `http://localhost:9001/v1` | URL of the inference server |
+| `--openai.model_name` | str | `Qwen/Qwen2.5-1.5B-Instruct` | Model name to evaluate |
+| `--openai.api_key` | str | `x` | API key |
+| `--env.vf_env_name` | str | `primeintellect/gsm8k` | Prime environment identifier |
+| `--env.eval_temperature` | float | `0.0` | Temperature for generation |
+| `--env.eval_max_tokens` | int | `2048` | Maximum tokens per completion |
+| `--env.max_eval_items` | int | `-1` | Maximum items to evaluate (-1 for all) |
+| `--env.max_concurrent` | int | `64` | Maximum concurrent requests |
+| `--env.data_dir_to_save_evals` | str | `None` | Directory to save evaluation results |
 
 **Usage Examples:**
 
@@ -121,31 +123,33 @@ python verifiers_server.py evaluate \
     --openai.base_url http://localhost:9001/v1
 
 # Standalone Evaluation with OpenAI (verifiers_eval.py)
-python eval_environments/verifiers_eval.py \
-    --server-url https://api.openai.com/v1 \
-    --model-name gpt-4o \
-    --vf-env-name primeintellect/gsm8k
+python eval_environments/verifiers_eval.py evaluate \
+    --openai.base_url https://api.openai.com/v1 \
+    --openai.api_key $OPENAI_API_KEY \
+    --openai.model_name gpt-4o \
+    --env.vf_env_name primeintellect/gsm8k
 
 # Quick test run with limited items
-python eval_environments/verifiers_eval.py \
-    --server-url https://api.openai.com/v1 \
-    --model-name gpt-4o-mini \
-    --vf-env-name primeintellect/alphabet-sort \
-    --max-eval-items 10
+python eval_environments/verifiers_eval.py evaluate \
+    --openai.base_url https://api.openai.com/v1 \
+    --openai.api_key $OPENAI_API_KEY \
+    --openai.model_name gpt-4o-mini \
+    --env.vf_env_name primeintellect/alphabet-sort \
+    --env.max_eval_items 10
 
 # Evaluation with local server and results saved
-python eval_environments/verifiers_eval.py \
-    --server-url http://localhost:9001/v1 \
-    --model-name Qwen/Qwen2.5-7B-Instruct \
-    --vf-env-name primeintellect/gsm8k \
-    --eval-dir ./eval_results
+python eval_environments/verifiers_eval.py evaluate \
+    --openai.base_url http://localhost:9001/v1 \
+    --openai.model_name Qwen/Qwen2.5-7B-Instruct \
+    --env.vf_env_name primeintellect/gsm8k \
+    --env.data_dir_to_save_evals ./eval_results
 ```
 
 **Key Implementation Details:**
 
 - **RL Training Mode (`serve`)**: Uses `ManagedServer` for proper token/logprob alignment required by policy gradient methods (GRPO, PPO, REINFORCE). Returns `ScoredDataGroup` with `tokens`, `masks`, `scores`, and `inference_logprobs`.
 - **SFT Datagen Mode (`process`)**: Uses `tokenize_for_trainer` to tokenize API responses with your target model's tokenizer (e.g., GPT-4o responses tokenized for Qwen/Llama). Does NOT require logprobs.
-- **Evaluation (`verifiers_eval.py`)**: Standalone evaluation script using `EvalBase` pattern. Uses verifiers' native batch evaluation for efficiency and outputs results via `evaluate_log()`. Works with any OpenAI-compatible API.
+- **Evaluation (`verifiers_eval.py`)**: Standalone evaluation script using `BaseEnv` pattern with `evaluate` subcommand. Uses verifiers' native batch evaluation for efficiency and outputs results via `evaluate_log()`. Works with any OpenAI-compatible API.
 
 **Prime Environment Installation:**
 ```bash
diff --git a/environments/eval_environments/verifiers_eval.py b/environments/eval_environments/verifiers_eval.py
index dd21e492..3100cf04 100644
--- a/environments/eval_environments/verifiers_eval.py
+++ b/environments/eval_environments/verifiers_eval.py
@@ -14,31 +14,53 @@ To install a Verifiers/Prime environment:
 Docs: https://docs.primeintellect.ai/tutorials-environments/install
 
 Usage:
-    python verifiers_eval.py \
-        --server-url http://localhost:8000/v1 \
-        --model-name Qwen/Qwen2.5-7B-Instruct \
-        --vf-env-name primeintellect/gsm8k \
-        --max-eval-items 100
+    # Evaluate with local server
+    python verifiers_eval.py evaluate \
+        --env.vf_env_name "primeintellect/gsm8k" \
+        --env.max_eval_items 100 \
+        --openai.model_name "Qwen/Qwen2.5-7B-Instruct" \
+        --openai.base_url "http://localhost:8000/v1"
+
+    # Evaluate with OpenAI
+    python verifiers_eval.py evaluate \
+        --env.vf_env_name "primeintellect/gsm8k" \
+        --env.max_eval_items 50 \
+        --openai.model_name "gpt-4o" \
+        --openai.api_key "$OPENAI_API_KEY" \
+        --openai.base_url "https://api.openai.com/v1"
 
 Works with any OpenAI-compatible API (OpenAI, vLLM, SGLang, Ollama, etc.)
 """
 
-import argparse
-import asyncio
+import json
 import time
-from typing import Tuple
+from typing import Any, Dict, List, Tuple
 
 import verifiers as vf
-from openai import AsyncOpenAI
 
-from atroposlib.envs.eval import EvalBase, evaluate_log
-from atroposlib.envs.server_handling.server_manager import ServerManager
+from atroposlib.envs.base import (
+    APIServerConfig,
+    BaseEnv,
+    BaseEnvConfig,
+    ScoredDataGroup,
+)
 
+# Import ManagedServerAdapter from shared location
+from atroposlib.envs.server_handling.managed_server import ManagedServerAdapter
 
 # Patch math_verify timeout to work in async context
 # The signal-based timeout doesn't work in non-main threads (asyncio event loop)
-def _no_signal_timeout(_timeout_seconds: int):
-    """Replacement timeout decorator that doesn't use signals."""
+
+
+def _no_signal_timeout(
+    _timeout_seconds: int | None = None, *, timeout_seconds: int | None = None
+):
+    """Replacement timeout decorator that doesn't use signals.
+
+    Accepts both positional arg (timeout(5)) and keyword arg (timeout(timeout_seconds=5)).
+    """
+    # Silence unused parameter warnings - these match the original API signature
+    del _timeout_seconds, timeout_seconds
 
     def decorator(func):
         def wrapper(*args, **kwargs):
@@ -63,108 +85,143 @@ except ImportError:
     pass  # math_verify not installed
 
 
-class VerifiersEval(EvalBase):
+class VfEvalConfig(BaseEnvConfig):
+    """Configuration for Verifiers evaluation environment."""
+
+    vf_env_name: str = "primeintellect/gsm8k"
+    env_args: str = "{}"  # JSON string for environment-specific args
+    eval_temperature: float = 0.0
+    eval_max_tokens: int = 2048
+    max_eval_items: int = -1  # -1 means evaluate all items
+    max_concurrent: int = 64
+
+    # Override BaseEnvConfig defaults for eval mode
+    group_size: int = 1
+    total_steps: int = 1
+    steps_per_eval: int = 1
+    use_wandb: bool = True
+
+    def get_env_args(self) -> Dict[str, Any]:
+        """Parse env_args JSON string into dict."""
+        if isinstance(self.env_args, dict):
+            return self.env_args
+        return json.loads(self.env_args)
+
+
+class VerifiersEvalEnv(BaseEnv):
     """
-    Verifiers Evaluation using EvalBase pattern.
+    Verifiers Evaluation Environment using BaseEnv pattern.
 
     Uses verifiers' native batch evaluation for efficiency,
-    with EvalBase's standardized logging via evaluate_log().
+    with BaseEnv's standardized logging via evaluate_log().
 
     Works with any OpenAI-compatible API (OpenAI, vLLM, SGLang, Ollama, etc.)
     """
 
-    def __init__(
-        self,
-        vf_env_name: str = "primeintellect/gsm8k",
-        env_args: dict = None,
-        temperature: float = 0.0,
-        max_tokens: int = 2048,
-        max_eval_items: int = -1,
-        max_concurrent: int = 64,
-        eval_dir: str = None,
-        verbose: bool = True,
-        **kwargs,
-    ):
-        self.vf_env_name = vf_env_name
-        self.env_args = env_args or {}
-        self.temperature = temperature
-        self.max_tokens = max_tokens
-        self.max_eval_items = max_eval_items
-        self.max_concurrent = max_concurrent
+    name = "verifiers_eval"
+    env_config_cls = VfEvalConfig  # type: ignore[assignment]
 
-        # Load verifiers environment
-        self.vf_env = vf.load_environment(vf_env_name, **self.env_args)
+    @classmethod
+    def config_init(cls) -> Tuple[VfEvalConfig, List[APIServerConfig]]:
+        """Return default configurations."""
+        env_config = VfEvalConfig(
+            tokenizer_name="Qwen/Qwen2.5-1.5B-Instruct",
+            vf_env_name="primeintellect/gsm8k",
+            wandb_name="verifiers_eval",
+        )
+        server_configs = [
+            APIServerConfig(
+                model_name="Qwen/Qwen2.5-1.5B-Instruct",
+                base_url="http://localhost:9001/v1",
+                api_key="x",
+            ),
+        ]
+        return env_config, server_configs
+
+    async def setup(self):
+        """Load verifiers environment and dataset."""
+        env_args = self.config.get_env_args()
+        self.vf_env = vf.load_environment(self.config.vf_env_name, **env_args)
         self.reward_func_names = self.vf_env.rubric._get_reward_func_names()
 
-        # Initialize EvalBase (calls setup_data)
-        super().__init__(
-            eval_dir=eval_dir,
-            verbose=verbose,
-            **kwargs,
-        )
-
-    def get_generation_params(self):
-        """Generation params for logging."""
-        return {
-            "temperature": self.temperature,
-            "max_tokens": self.max_tokens,
-            "n": 1,
-        }
-
-    def setup_data(self) -> list:
-        """Return evaluation dataset from verifiers environment."""
+        # Load evaluation dataset
         dataset = self.vf_env.get_eval_dataset()
-        if self.max_eval_items > 0:
-            n = min(len(dataset), self.max_eval_items)
+        if self.config.max_eval_items > 0:
+            n = min(len(dataset), self.config.max_eval_items)
             dataset = dataset.select(range(n))
-        return dataset.to_list()
+        self.data = dataset.to_list()
 
-    async def run_item(
-        self, server: ServerManager, data_item: dict  # noqa: ARG002
-    ) -> Tuple[dict, list]:
-        """Not used - we override __call__ for batch evaluation."""
-        raise NotImplementedError(
-            "VerifiersEval uses batch evaluation via __call__, not per-item run_item"
+    async def get_next_item(self):
+        """Not used in eval mode - stub implementation."""
+        return None
+
+    async def collect_trajectories(self, item) -> Tuple[ScoredDataGroup, list]:
+        """Not used in eval mode - stub implementation."""
+        _ = item  # unused in eval mode
+        return (
+            ScoredDataGroup(
+                tokens=[],
+                masks=[],
+                scores=[],
+                messages=[],
+                inference_logprobs=[],
+                advantages=[],
+                ref_logprobs=[],
+                generation_params=None,
+                group_overrides=None,
+                overrides=[],
+                images=[],
+            ),
+            [],
         )
 
-    async def __call__(self, server_manager: ServerManager):
-        """Run evaluation using verifiers' native batch machinery."""
+    async def evaluate(self, *args, **kwargs) -> Dict[str, float]:
+        """Run evaluation using verifiers with ManagedServer."""
         start_time = time.time()
 
-        # Create OpenAI client from server config
-        server = server_manager.servers[0]
-        client = AsyncOpenAI(
-            api_key=server.config.api_key or "x",
-            base_url=server.config.base_url,
-            timeout=getattr(server.config, "timeout", 600),
-        )
-        model = server.config.model_name
+        # Get server config
+        if hasattr(self.server, "servers") and self.server.servers:
+            server_config = self.server.servers[0].config
+        else:
+            server_config = self.server_configs[0]
+
+        model_name = server_config.model_name
 
         print(f"\n{'=' * 60}")
-        print(f"Verifiers Evaluation: {self.vf_env_name}")
+        print(f"Verifiers Evaluation: {self.config.vf_env_name}")
         print(f"{'=' * 60}")
-        print(f"  Model: {model}")
+        print(f"  Model: {model_name}")
         print(f"  Items: {len(self.data)}")
         print(f"  Reward functions: {self.reward_func_names}")
-        print(f"  Temperature: {self.temperature}")
-        print(f"  Max concurrent: {self.max_concurrent}")
+        print(f"  Temperature: {self.config.eval_temperature}")
+        print(f"  Max concurrent: {self.config.max_concurrent}")
         print(f"{'=' * 60}\n")
 
-        num_examples = self.max_eval_items if self.max_eval_items > 0 else -1
-
-        # Use verifiers' batch evaluation
-        results = await self.vf_env.evaluate(
-            client=client,
-            model=model,
-            sampling_args={
-                "temperature": self.temperature,
-                "max_tokens": self.max_tokens,
-            },
-            num_examples=num_examples,
-            max_concurrent=self.max_concurrent,
-            save_results=False,
+        num_examples = (
+            self.config.max_eval_items if self.config.max_eval_items > 0 else -1
         )
 
+        # Use ManagedServer for automatic token/logprob tracking
+        async with self.server.managed_server(tokenizer=self.tokenizer) as managed:
+            # Create adapter that looks like AsyncOpenAI for verifiers
+            adapter = ManagedServerAdapter(
+                managed_server=managed,
+                base_url=server_config.base_url,
+            )
+
+            # Use verifiers' batch evaluation
+            results = await self.vf_env.evaluate(
+                client=adapter,
+                model=model_name,
+                sampling_args={
+                    "temperature": self.config.eval_temperature,
+                    "max_tokens": self.config.eval_max_tokens,
+                },
+                num_examples=num_examples,
+                max_concurrent=self.config.max_concurrent,
+                save_results=False,
+            )
+
         end_time = time.time()
 
         # Extract from verifiers output
@@ -193,6 +250,11 @@ class VerifiersEval(EvalBase):
             "avg_score": avg_score,
         }
 
+        # Add per-function metrics
+        for func_name, data in reward_breakdown.items():
+            metrics[f"{func_name}_avg"] = data["avg"]
+            metrics[f"{func_name}_correct_rate"] = data["correct"] / total
+
         # Print results summary
         print(f"\n{'=' * 60}")
         print("Verifiers Evaluation Results")
@@ -233,114 +295,25 @@ class VerifiersEval(EvalBase):
                 }
             )
 
-        # Use EvalBase's evaluate_log
-        task_name = f"VerifiersEval@{self.vf_env_name.replace('/', '_')}"
-        evaluate_log(
+        # Use BaseEnv's evaluate_log
+        task_name = f"VerifiersEval@{self.config.vf_env_name.replace('/', '_')}"
+        await self.evaluate_log(
             metrics=metrics,
-            eval_dir=getattr(self, "eval_dir", None),
             task_name=task_name,
-            model_name=model,
+            model_name=model_name,
             start_time=start_time,
             end_time=end_time,
-            generation_parameters=self.get_generation_params(),
+            generation_parameters={
+                "temperature": self.config.eval_temperature,
+                "max_tokens": self.config.eval_max_tokens,
+                "n": 1,
+            },
             samples=samples,
-            verbose=getattr(self, "verbose", False),
+            verbose=True,
         )
 
         return metrics
 
 
-async def main():
-    """CLI entry point for verifiers evaluation."""
-    import os
-
-    from atroposlib.envs.server_handling.server_baseline import APIServerConfig
-
-    parser = argparse.ArgumentParser(
-        description="Evaluate models using Verifiers environments"
-    )
-    # Server args (same as eval_runner)
-    parser.add_argument(
-        "--server-url",
-        type=str,
-        default="http://localhost:8000/v1",
-        help="URL of the inference server",
-    )
-    parser.add_argument(
-        "--model-name",
-        type=str,
-        required=True,
-        help="Model name to evaluate",
-    )
-    parser.add_argument(
-        "--api-key",
-        type=str,
-        default=os.getenv("OPENAI_API_KEY", "x"),
-        help="API key (defaults to OPENAI_API_KEY env var)",
-    )
-    # Verifiers-specific args
-    parser.add_argument(
-        "--vf-env-name",
-        type=str,
-        default="primeintellect/gsm8k",
-        help="Verifiers environment name (e.g., primeintellect/gsm8k)",
-    )
-    parser.add_argument(
-        "--max-eval-items",
-        type=int,
-        default=-1,
-        help="Maximum items to evaluate (-1 for all)",
-    )
-    parser.add_argument(
-        "--temperature",
-        type=float,
-        default=0.0,
-        help="Generation temperature",
-    )
-    parser.add_argument(
-        "--max-tokens",
-        type=int,
-        default=2048,
-        help="Maximum tokens per completion",
-    )
-    parser.add_argument(
-        "--max-concurrent",
-        type=int,
-        default=64,
-        help="Maximum concurrent requests",
-    )
-    parser.add_argument(
-        "--eval-dir",
-        type=str,
-        default=None,
-        help="Directory to save evaluation results",
-    )
-    args = parser.parse_args()
-
-    # Create server manager
-    server_manager = ServerManager(
-        configs=[
-            APIServerConfig(
-                api_key=args.api_key,
-                base_url=args.server_url,
-                model_name=args.model_name,
-                health_check=False,
-            ),
-        ]
-    )
-
-    # Create and run evaluation
-    eval_instance = VerifiersEval(
-        vf_env_name=args.vf_env_name,
-        max_eval_items=args.max_eval_items,
-        temperature=args.temperature,
-        max_tokens=args.max_tokens,
-        max_concurrent=args.max_concurrent,
-        eval_dir=args.eval_dir,
-        verbose=True,
-    )
-    return await eval_instance(server_manager)
-
-
 if __name__ == "__main__":
-    asyncio.run(main())
+    VerifiersEvalEnv.cli()
diff --git a/environments/verifiers_server.py b/environments/verifiers_server.py
index 0cd8cf45..98413d8a 100644
--- a/environments/verifiers_server.py
+++ b/environments/verifiers_server.py
@@ -46,65 +46,11 @@ from atroposlib.envs.base import (
     BaseEnvConfig,
     ScoredDataGroup,
 )
-from atroposlib.envs.server_handling.managed_server import ManagedServer
+from atroposlib.envs.server_handling.managed_server import ManagedServerAdapter
 
 logger = logging.getLogger(__name__)
 
 
-class ManagedServerAdapter:
-    """
-    Adapter that makes ManagedServer look like AsyncOpenAI for verifiers.
-
-    Implements the subset of AsyncOpenAI interface that verifiers uses:
-    - client.chat.completions.create()
-    - client.completions.create()
-    - client.base_url
-    """
-
-    def __init__(self, managed_server: ManagedServer, base_url: str):
-        self._managed = managed_server
-        self.base_url = base_url
-        self.chat = self._ChatNamespace(self._managed)
-        self.completions = self._CompletionsNamespace(self._managed)
-
-    class _ChatNamespace:
-        def __init__(self, managed: ManagedServer):
-            self._managed = managed
-            self.completions = ManagedServerAdapter._ChatCompletionsNamespace(managed)
-
-    class _ChatCompletionsNamespace:
-        def __init__(self, managed: ManagedServer):
-            self._managed = managed
-
-        async def create(self, **kwargs):
-            logger.info(
-                "ManagedServerAdapter.chat.completions.create called with model=%s",
-                kwargs.get("model"),
-            )
-            result = await self._managed.chat_completion(**kwargs)
-            logger.info("ManagedServerAdapter.chat.completions.create completed")
-            return result
-
-    class _CompletionsNamespace:
-        def __init__(self, managed: ManagedServer):
-            self._managed = managed
-
-        async def create(self, **kwargs):
-            return await self._managed.completion(**kwargs)
-
-    async def post(self, path: str, body: dict, cast_to: type):
-        raise NotImplementedError(
-            f"ManagedServerAdapter does not support post() for path '{path}'. "
-            "This is used for vLLM interleaved rollouts. Use standard chat completions."
-        )
-
-    def copy(self, **kwargs):
-        raise NotImplementedError(
-            "ManagedServerAdapter does not support copy(). "
-            "This is used for vLLM tokenization endpoints."
-        )
-
-
 class VfEnvConfig(BaseEnvConfig):
     vf_env_name: str = ""
     env_args: str = "{}"