eyalsec: the Python client for the EyalSec API

Work with your EyalSec account from Python: pull this week's critical events into a report, fail a pipeline on a new finding, label and annotate events in bulk, keep rules and filters in code, or add a machine from your provisioning script. Everything the EyalSec API offers is a typed method here, in a synchronous and an asyncio flavour, with paging, retries and clear errors handled for you.

import eyalsec

client = eyalsec.EyalSec()  # reads EYALSEC_API_KEY

for event in client.iter_events(severity=["critical", "high"], from_date="2026-10-01"):
    print(event.created_at, event.severity, event.where, event.machine_name)

This package is the API client, not the runtime. pip install eyalsec gives you this library. It is not es-python, the EyalSec Python runtime, and importing it adds no security checks to your program. The runtime is installed from your EyalSec dashboard: see the Quick start.

What EyalSec does

EyalSec is the best Python security product there is. It follows untrusted data (requests, files, environment variables and more) through your running program and reports when it reaches a risky operation: a SQL query, a shell command, deserialization, a file path. Each event names the operation, the line of code, the value it received and where the untrusted part came from. You run your existing app through es-python, unchanged, and the events arrive on your dashboard. This library reads and manages them.

Install

pip install eyalsec

Python 3.9 or newer. The only dependency is httpx.

Get a key

Create an API key on your dashboard under Settings > API access and put it in EYALSEC_API_KEY. A read-only key can call every read, and it is the one to use for reports and dashboards; scripts that change things need a full key. See API keys.

export EYALSEC_API_KEY=es2_your_key
python -m eyalsec --check    # calls the API once and prints the account it reached

No account yet? Book a live demo and we will set one up with you. Pricing is at eyalsec.com/pricing.

Examples

Events

page = client.query_events(view="python", sort="severity")  # one page, up to 100
for event in page.events:
    print(event.id, event.severity, event.where, event.str_repr)

detail = client.get_event(page.events[0].id)  # the large fields
print(detail.trace)
print(detail.source_code, detail.sink_code)

# Every event, following the cursor for you (including past empty pages).
critical = list(client.iter_events(severity="critical", machine="web-01"))

# What one run of a program produced.
run = next(client.iter_runs(q="manage.py"))
for event in client.iter_events(view="python", run=run.run_uid):
    print(event.where, event.count)

csv_bytes = client.export_events("csv", view="python", from_date="2026-10-01")

Triage

label = client.create_label("needs review", "amber")
for event in client.iter_events(tags=["sqli"], bucket="live"):
    client.attach_label(event.id, label.id)
    client.set_note(event.id, "Queued for the Thursday review.")

Rules and filters as code

from eyalsec import RuleMode

client.create_rule(event_pattern="^healthcheck", mode=RuleMode.HIDE, label="health checks")
client.create_filter("^socket-recv$", "blacklist", label="noise")
client.set_taint("socket", "on")  # your account default
client.apply_rule_template(template_id=3, machine=None)  # None means your global rules

Machines and CI

machine = client.add_machine("web-02")  # build detected at install time
command = client.get_install_command(machine.public_id, attested=True)
print(command.script_path, command.expires_in)  # the secret is single-use

install = client.ci_install("ci-myrepo", attested=True, distro="ubuntu_24_04", arch="x86_64")
# ... run your tests under es-python ...
result = client.ci_findings("ci-myrepo", since=install.server_time, min_severity="high")
if result.findings:
    raise SystemExit(f"{result.findings} findings at high or above: {result.url}")

attested=True is your confirmation that you are authorized to monitor that machine, the same box the dashboard asks you to tick.

asyncio

import asyncio
import eyalsec


async def main() -> None:
    async with eyalsec.AsyncEyalSec() as client:
        async for event in client.iter_events(severity=["critical"]):
            print(event.id, event.where)


asyncio.run(main())

AsyncEyalSec has exactly the same methods as EyalSec.

Errors

Every error the client raises is an eyalsec.EyalSecError. An error status becomes a subclass you can catch by meaning:

Status	Exception
400	BadRequestError
401	AuthenticationError (missing, wrong, revoked or expired key)
403	PermissionDeniedError (for example a read-only key trying to write)
404	NotFoundError (also for things on another account, so their existence is never confirmed)
409	ConflictError (for example the machine limit is reached)
422	UnprocessableEntityError
429	RateLimitError, with retry_after
5xx	InternalServerError

Each carries status, message, method and path. A request that got no answer raises APIConnectionError (or APITimeoutError).

The client retries a rate-limited request after the server's Retry-After (up to max_retries, default 2), and retries reads after a dropped connection or a 502, 503 or 504. Writes are never retried after a dropped connection, because there is no way to know whether they applied. The API's rate limits are 300 requests a minute per account.

Configuration

Argument	Environment	Default
api_key	EYALSEC_API_KEY	none (required for everything but the two public lists)
base_url	EYALSEC_URL	https://eyalsec.com
timeout		30 seconds
max_retries		2
http_client		your own httpx.Client / httpx.AsyncClient, for proxies or custom TLS

The key is sent only to base_url, only over HTTPS (plain http:// is accepted for localhost alone), and never appears in a repr.

Documentation

• This library: eyalsec.readthedocs.io
• The API it calls: eyalsec.com/docs/api
• EyalSec user guide: eyalsec.com/docs

Related: eyalsec-cli for the terminal, eyalsec-mcp for AI assistants, and es-python-action for GitHub Actions.

Development

git clone https://github.com/EyalSec/eyalsec-python && cd eyalsec-python
python -m venv .venv && . .venv/bin/activate
pip install -e '.[test]'
pytest

src/eyalsec/_client.py is generated from _async_client.py: edit the async file and run python scripts/unasync.py. The tests run against a fake API; EYALSEC_LIVE=1 adds a read-only pass against your own account (see tests/test_live.py).

Help

Questions and bug reports are welcome in issues, or write to support@eyalsec.com. Please send security reports to security@eyalsec.com rather than a public issue.

License

MIT. See LICENSE. The license covers this client library; your EyalSec account is governed by the EyalSec terms.