langchain-opsen

Run LangChain deepagents on opsen — with machine, model and tool spend on one bill and a budget the runtime enforces mid-run.

pip install langchain-opsen

from deepagents import create_deep_agent
from langchain_anthropic import ChatAnthropic
from langchain_opsen import OpsenSandbox

agent = create_deep_agent(
    model=ChatAnthropic(model="claude-sonnet-4-6"),
    system_prompt="You are a Python coding assistant.",
    backend=OpsenSandbox(task_id="nightly-report", budget_usd=2.00),
)

Set OPSEN_API_KEY, or pass api_key=. Get one here:

https://opsen.dev/keys

What this adds

Every sandbox backend bills you for the machine and leaves the model bill with a different vendor, on a different invoice, with no shared identifier. Two bills, reconciled by hand, and no answer to "what did that agent cost".

opsen sits in both paths, so:

agent_cost = backend.cost()
# {'total_usd': 0.41, 'compute_usd': 0.02, 'tokens_usd': 0.39,
#  'calls': 34, 'input_tokens': 84120, 'output_tokens': 9310,
#  'task_id': 'nightly-report'}

budget_usd is a ceiling the gateway enforces during the run. An agent that would cross it is refused mid-flight rather than noticed afterwards on an invoice.

Behaviour worth knowing

The session starts lazily. Constructing OpsenSandbox starts no machine — the first command does. An agent built and never run costs nothing.

File operations and the shell share one channel. Both go through the same exec path, so the file tools and execute() always agree about the working directory.

Ports depend on the runtime. host(port) works on E2B, works on Modal when the port was declared at sandbox creation, and raises on the local runtime with a message naming the limitation. A provider that hands back a URL which does not answer turns "preview my server" into a debugging session.

Configuration

Argument	Default	Meaning
`api_key`	`$OPSEN_API_KEY`	From opsen.dev/keys
`task_id`	`"deepagents"`	Groups this agent's spend. One id, one line on the spend page.
`budget_usd`	none	Hard ceiling, enforced mid-run
`labels`	`{}`	Arbitrary tags — customer, environment, whatever you group by
`base_url`	`https://opsen.dev`	For self-hosted deployments
`timeout`	`300`	Default seconds per command

Licence

Apache-2.0

Development Status
- 4 - Beta
Intended Audience
- Developers
License
- OSI Approved :: Apache Software License
Programming Language
- Python :: 3

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

langchain_opsen-0.1.5.tar.gz (6.9 kB view details)

Uploaded Sep 8, 2026 Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

The dropdown lists show the available interpreters, ABIs, and platforms. Enable javascript to be able to filter the list of wheel files.

langchain_opsen-0.1.5-py3-none-any.whl (7.0 kB view details)

Uploaded Sep 8, 2026 Python 3

File details

Details for the file langchain_opsen-0.1.5.tar.gz.

File metadata

Download URL: langchain_opsen-0.1.5.tar.gz
Upload date: Sep 8, 2026
Size: 6.9 kB
Tags: Source
Uploaded using Trusted Publishing? Yes
Uploaded via: twine/7.0.0 CPython/3.13.14

File hashes

Hashes for langchain_opsen-0.1.5.tar.gz
Algorithm	Hash digest
SHA256	`2f2d90291b55634ffc11b169c0d5572cdba46af2bd76f994b45a4e95c2254f78`
MD5	`5ffc3e2dd791c917487ba4fe912ee874`
BLAKE2b-256	`9dada4214a1648130ed5e0b31f42ee1f2a3c9a7a39a644ab9a94f68deb3cb902`

See more details on using hashes here.

Provenance

The following attestation bundles were made for langchain_opsen-0.1.5.tar.gz:

Publisher: release.yml on md322613/opsen

Attestations: Values shown here reflect the state when the release was signed and may no longer be current.

Statement:
- Statement type: https://in-toto.io/Statement/v1
- Predicate type: https://docs.pypi.org/attestations/publish/v1
- Subject name: langchain_opsen-0.1.5.tar.gz
- Subject digest: 2f2d90291b55634ffc11b169c0d5572cdba46af2bd76f994b45a4e95c2254f78
- Sigstore transparency entry: 2755202416
- Sigstore integration time: Sep 8, 2026
Source repository:
- Permalink: md322613/opsen@f3142e57e8a19eed560b5f7ddc00afd7687447c6
- Branch / Tag: refs/tags/v0.1.5
- Owner: https://github.com/md322613
- Access: private
Publication detail:
- Token Issuer: https://token.actions.githubusercontent.com
- Runner Environment: github-hosted
- Publication workflow: release.yml@f3142e57e8a19eed560b5f7ddc00afd7687447c6
- Trigger Event: push