docs/en/tools/ai-ml/daytona.mdx
The Daytona sandbox tools give CrewAI agents access to isolated, ephemeral compute environments powered by Daytona. Three tools are available so you can give an agent exactly the capabilities it needs:
DaytonaExecTool — run any shell command inside a sandbox.DaytonaPythonTool — execute a block of Python source code inside a sandbox.DaytonaFileTool — read, write, append, list, delete, and inspect files inside a sandbox.All three tools share the same sandbox lifecycle controls, so you can mix and match them while keeping state in a single persistent sandbox.
uv add "crewai-tools[daytona]"
# or
pip install "crewai-tools[daytona]"
Set your API key:
export DAYTONA_API_KEY="your-api-key"
DAYTONA_API_URL and DAYTONA_TARGET are also respected if set.
All three tools inherit lifecycle controls from DaytonaBaseTool:
| Mode | How to enable | Sandbox created | Sandbox deleted |
|---|---|---|---|
| Ephemeral (default) | persistent=False (default) | On every _run call | At the end of that same call |
| Persistent | persistent=True | Lazily on first use | At process exit (via atexit), or manually via tool.close() |
| Attach | sandbox_id="<id>" | Never — attaches to an existing sandbox | Never — the tool will not delete a sandbox it did not create |
Ephemeral mode is the safe default: nothing leaks if the agent forgets to clean up. Use persistent mode when you want filesystem state or installed packages to carry across multiple tool calls — this is typical when pairing DaytonaFileTool with DaytonaExecTool.
from crewai_tools import DaytonaPythonTool
tool = DaytonaPythonTool()
result = tool.run(code="print(sum(range(10)))")
print(result)
# {"exit_code": 0, "result": "45\n", "artifacts": None}
from crewai_tools import DaytonaExecTool, DaytonaFileTool
exec_tool = DaytonaExecTool(persistent=True)
file_tool = DaytonaFileTool(persistent=True)
# Install a package, then write and run a script — all in the same sandbox
exec_tool.run(command="pip install httpx -q")
file_tool.run(action="write", path="/workspace/fetch.py", content="import httpx; print(httpx.get('https://httpbin.org/get').status_code)")
exec_tool.run(command="python /workspace/fetch.py")
from crewai_tools import DaytonaExecTool
tool = DaytonaExecTool(sandbox_id="my-long-lived-sandbox")
result = tool.run(command="ls /workspace")
Pass Daytona's CreateSandboxFromSnapshotParams kwargs via create_params:
from crewai_tools import DaytonaExecTool
tool = DaytonaExecTool(
persistent=True,
create_params={
"language": "python",
"env_vars": {"MY_FLAG": "1"},
"labels": {"owner": "crewai-agent"},
},
)
from crewai import Agent, Task, Crew
from crewai_tools import DaytonaExecTool, DaytonaPythonTool, DaytonaFileTool
exec_tool = DaytonaExecTool(persistent=True)
python_tool = DaytonaPythonTool(persistent=True)
file_tool = DaytonaFileTool(persistent=True)
coder = Agent(
role="Sandbox Engineer",
goal="Write and run code in an isolated environment",
backstory="An engineer who uses Daytona sandboxes to safely execute code and manage files.",
tools=[exec_tool, python_tool, file_tool],
verbose=True,
)
task = Task(
description="Write a Python script that prints the first 10 Fibonacci numbers, save it to /workspace/fib.py, and run it.",
expected_output="The first 10 Fibonacci numbers printed to stdout.",
agent=coder,
)
crew = Crew(agents=[coder], tasks=[task])
result = crew.kickoff()
DaytonaBaseTool)All three tools accept these parameters at initialization:
| Parameter | Type | Default | Description |
|---|---|---|---|
api_key | str | None | $DAYTONA_API_KEY | Daytona API key. Falls back to the DAYTONA_API_KEY env var. |
api_url | str | None | $DAYTONA_API_URL | Daytona API URL override. |
target | str | None | $DAYTONA_TARGET | Daytona target region. |
persistent | bool | False | Reuse one sandbox across all calls and delete it at process exit. |
sandbox_id | str | None | None | Attach to an existing sandbox by id or name. |
create_params | dict | None | None | Extra kwargs forwarded to CreateSandboxFromSnapshotParams (e.g. language, env_vars, labels). |
sandbox_timeout | float | 60.0 | Timeout in seconds for sandbox create/delete operations. |
DaytonaExecTool| Parameter | Type | Required | Description |
|---|---|---|---|
command | str | ✓ | Shell command to execute. |
cwd | str | None | Working directory inside the sandbox. | |
env | dict[str, str] | None | Extra environment variables for this command. | |
timeout | int | None | Maximum seconds to wait for the command. |
DaytonaPythonTool| Parameter | Type | Required | Description |
|---|---|---|---|
code | str | ✓ | Python source code to execute. |
argv | list[str] | None | Argument vector forwarded via CodeRunParams. | |
env | dict[str, str] | None | Environment variables forwarded via CodeRunParams. | |
timeout | int | None | Maximum seconds to wait for execution. |
DaytonaFileTool| Parameter | Type | Required | Description |
|---|---|---|---|
action | str | ✓ | One of: read, write, append, list, delete, mkdir, info. |
path | str | ✓ | Absolute path inside the sandbox. |
content | str | None | Content to write or append. Required for append. | |
binary | bool | If True, content is base64 on write; returns base64 on read. | |
recursive | bool | For delete: remove directories recursively. | |
mode | str | For mkdir: octal permission string (default "0755"). |