---
id: literalai
version: "0.1.300"
license: Apache License 2.0
license_treatment: permissive
maintenance: aging
---

# literalai — An SDK for observability in Python applications

License: permissive · Maintenance: aging · Downloads: 455.2K/mo

## What it is and what it does

Literalai is a client library for integrating observability into Python applications by connecting to the Literal AI backend service. It provides decorators to instrument functions and track their execution for monitoring and debugging purposes.

The package requires an API key (set via LITERAL_API_KEY environment variable) to send telemetry to the Literal AI service. It has no runtime dependencies and is designed to be lightweight, but setup involves external configuration and assumes you have an active account with the Literal AI platform.

Use it for:

- Instrument Python functions to trace execution flow and monitor performance in AI or data pipelines
- Collect observability data from application code and send it to a centralized Literal AI dashboard
- Debug multi-step workflows by decorating functions to capture inputs, outputs, and timing
- Monitor long-running Python applications by flushing telemetry via client.flush_and_stop()

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Literalai is a Python SDK for observability in applications, providing decorators to instrument code for monitoring and tracing execution.

Yes, if you are already using or planning to adopt Literal AI for observability. The package is straightforward to integrate and has no dependency overhead. However, the aging maintenance status (485 days since last release) and lack of Python version clarity warrant checking current project health before committing to a new observability platform dependency.

## Install

pip install literalai
uv add literalai
poetry add literalai

## Installing literalai

Before you install: High install friction: the package has no runtime dependencies but requires external API key configuration to function. Maintenance status is aging—last release was 485 days ago, suggesting limited recent development activity.

License in practice: Licensed under Apache License 2.0 (permissive), so you can use, modify, and distribute it freely in most contexts without significant legal constraints.

Quickstart:

pip install literalai

from literalai import LiteralClient

client = LiteralClient()

@client.step(type="run")
def my_step(input):
    return f"Result"

@client.thread
def main():
    print(my_step("Hello"))

main()
client.flush_and_stop()

Requires LITERAL_API_KEY environment variable to be set; without it, the client will fail to authenticate with the Literal AI backend service.

Verify before relying:

- Whether the package is actively maintained or has entered maintenance-only mode despite aging status
- Python version compatibility—requires_python is unspecified in the metadata
- Whether the Literal AI backend service is stable and what its SLA or uptime guarantees are
- What external dependencies the usage example implies (e.g., environment file loading)

## Package facts

- License: Apache License 2.0 (permissive)
- Python support: unspecified
- Install friction: high
- Maintenance: aging
- Downloads: 455.2K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

python observability sdk, application tracing client, code execution monitoring, step instrumentation, observability platform integration, observability, tracing, instrumentation

[View on SkillFed](https://skillfed.io/packages/literalai) · [View on PyPI](https://pypi.org/project/literalai/)