Skip to main content

Braintrust Python SDK

PyPI version

The official Python SDK for logging, tracing, and evaluating AI applications with Braintrust.

Installation

Install the SDK:

pip install braintrust

Quickstart

Run a simple evaluation:

from braintrust import Eval


def is_equal(expected, output):
    return expected == output


Eval(
    "Say Hi Bot",
    data=lambda: [
        {"input": "Foo", "expected": "Hi Foo"},
        {"input": "Bar", "expected": "Hello Bar"},
    ],
    task=lambda input: "Hi " + input,
    scores=[is_equal],
)

Then run:

BRAINTRUST_API_KEY=<YOUR_API_KEY> braintrust eval tutorial_eval.py

Optional Extras

Install extras as needed for specific workflows:

pip install "braintrust[cli]"
pip install "braintrust[openai-agents]"
pip install "braintrust[otel]"
pip install "braintrust[temporal]"
pip install "braintrust[all]"

Available extras:

  • performance: installs orjson for faster JSON serialization
  • cli: installs optional dependencies used by the Braintrust CLI
  • openai-agents: installs OpenAI Agents integration support
  • otel: installs OpenTelemetry integration dependencies
  • temporal: installs Temporal integration dependencies
  • all: installs all optional extras

Documentation

License

Apache-2.0

Metadata

Release files for braintrust 0.49.2

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for braintrust 0.49.2
File Size Uploaded Provenance Actions
braintrust-0.49.2.tar.gz 628.4 kB With provenance Details for braintrust-0.49.2.tar.gz

Built distribution (wheel)

Table of built distributions (wheels) for braintrust 0.49.2
File Interpreter ABI Platform Actions
braintrust-0.49.2-py3-none-any.whl Python 3 none any Details for braintrust-0.49.2-py3-none-any.whl

Total release size: 1.4 MB

Release files / braintrust-0.49.2.tar.gz

Download URL braintrust-0.49.2.tar.gz
Size 628.4 kB
Tags Source
SHA-256 checksum
How to use checksums
1878ef02c4782428f1f5b86fc614f8c29aca4bd3dc3c2437aa916706f57b8abc
BLAKE2b-256 checksum
How to use checksums
fae5cb0c2ceb24e4f96019cd9dae2442414af790d34e594a6754f18a931e05cf
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via uv/0.13.7 {"installer":{"name":"uv","version":"0.13.7","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"24.04","id":"noble","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Nov 3, 2026.

Transparency log

Release files / braintrust-0.49.2-py3-none-any.whl

Download URL braintrust-0.49.2-py3-none-any.whl
Size 757.3 kB
Tags Python 3
SHA-256 checksum
How to use checksums
36a4c2dca985bb7e1c6e40e0bd2211bcdf5bbf317e09ca31ba9280b9e39aaced
BLAKE2b-256 checksum
How to use checksums
fd8f9e6a6064b5f3f52eeb54d41067ce479f92a9aadf8f1d67ff82d91e50098e
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via uv/0.13.7 {"installer":{"name":"uv","version":"0.13.7","subcommand":["publish"]},"python":null,"implementation":{"name":null,"version":null},"distro":{"name":"Ubuntu","version":"24.04","id":"noble","libc":null},"system":{"name":null,"release":null},"cpu":null,"openssl_version":null,"setuptools_version":null,"rustc_version":null,"ci":true}

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Nov 3, 2026.

Transparency log

Security for braintrust 0.49.2

Provenance

Provenance describes where a file came from. On PyPI, provenance is shared via attestations, which provide a verifiable record of the build or publishing details. View details, limitations and caveats.

Full provenance

All 2 files in this release have been uploaded with provenance metadata.

Select from 2 files

Attestation for braintrust-0.49.2.tar.gz

PyPI Publish Attestation

PyPI verified that this artifact, at this checksum, originated from the publisher listed below.

Signed by GitHub Actions, verified by PyPI on Nov 3, 2026.

Transparency log

A note on package security

PyPI is a repository for distributing packages, not a service for auditing them. While third-party security researchers and our staff do their best to detect and remove malicious packages, PyPI cannot guarantee the quality, security or suitability of any given package.

To learn more about protecting yourself from malicious actors, visit our package security documentation.

Release history Release notifications | RSS feed

This release

0.49.2 This release

2 release files Full provenance

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page