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

Release files for braintrust 0.37.0

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 0.37.0
File Size Uploaded
braintrust-0.37.0.tar.gz 854.3 kB Details

Built distribution (wheel)

Table of built distributions (wheels) for braintrust 0.37.0
File Interpreter ABI Platform
braintrust-0.37.0-py3-none-any.whl Python 3 none any Details

Total release size: 1.9 MB

Release files / braintrust-0.37.0.tar.gz

Download URL braintrust-0.37.0.tar.gz
Size 854.3 kB
Tags Source
SHA-256 checksum
How to use checksums
24ccfb8944b540c8c4817ab8526475cf15b266de83065274680411e916a08e3a
BLAKE2b-256 checksum
How to use checksums
d0ea50956a987246d0dfd0faf28e807d42230791c43ffbfab816094cc28b37c0
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via uv/0.12.9 {"installer":{"name":"uv","version":"0.12.9","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 Sep 3, 2026.

Transparency log

Release files / braintrust-0.37.0-py3-none-any.whl

Download URL braintrust-0.37.0-py3-none-any.whl
Size 1.0 MB
Tags Python 3
SHA-256 checksum
How to use checksums
7d45462cc06736ae8d303a407685e181a4914892554855b1ea543cb97394c6df
BLAKE2b-256 checksum
How to use checksums
c3f6ca83e4dbf37f8dc9656098e1de01b132433a74e094e3f7b4c8beec887ece
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
Yes
Uploaded via uv/0.12.9 {"installer":{"name":"uv","version":"0.12.9","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 Sep 3, 2026.

Transparency log

Release history Release notifications | RSS feed

0.41.0

2 release files

0.40.0

2 release files

0.39.0

2 release files

This release

0.37.0 This release

2 release files

0.35.0

2 release files

0.34.0

2 release files

0.33.0

2 release files

0.31.0

2 release files

0.30.1

2 release files

0.30.0

2 release files

0.29.0

2 release files

0.28.0

2 release files

0.27.0

2 release files

0.26.0

2 release files

0.25.0

2 release files

0.23.0

2 release files

0.22.1

2 release files

0.22.0

2 release files

0.21.0

2 release files

0.20.0

2 release files

0.18.0

2 release files

0.17.0

2 release files

0.16.0

2 release files

0.15.0

2 release files

0.14.0

2 release files

0.11.0

2 release files

0.10.0

2 release files

0.9.0

2 release files

0.8.0

2 release files

0.7.0

2 release files

0.6.0

2 release files

0.5.6

2 release files

0.5.5

2 release files

0.5.4

2 release files

0.5.3

2 release files

0.5.2

2 release files

0.5.0

2 release files

0.4.3

2 release files

0.4.2

2 release files

0.4.1

2 release files

0.4.0

2 release files

0.3.15

2 release files

0.3.14

2 release files

0.3.13

2 release files

0.3.9

2 release files

0.3.8

2 release files

0.3.7

2 release files

0.3.6

2 release files

0.3.5

2 release files

0.3.4

2 release files

0.3.1

2 release files

0.3.0

2 release files

0.2.9

2 release files

0.2.8

2 release files

0.2.7

2 release files

0.2.6

2 release files

0.2.5

2 release files

0.2.4

2 release files

0.2.3

2 release files

0.2.2

2 release files

0.2.1

2 release files

0.2.0

2 release files

0.1.8

2 release files

0.1.7

2 release files

0.1.6

2 release files

0.1.5

2 release files

0.1.4

2 release files

0.1.3

2 release files

0.1.2

2 release files

0.1.1

2 release files

0.1.0

2 release files

0.0.99

2 release files

0.0.98

2 release files

0.0.94

2 release files

0.0.93

2 release files

0.0.92

2 release files

0.0.91

2 release files

0.0.90

2 release files

0.0.89

2 release files

0.0.86

2 release files

0.0.85

2 release files

0.0.84

2 release files

0.0.83

2 release files

0.0.82

2 release files

0.0.81

2 release files

0.0.80

2 release files

0.0.79

2 release files

0.0.75

2 release files

0.0.74

2 release files

0.0.73

2 release files

0.0.72

2 release files

0.0.71

2 release files

0.0.63

2 release files

0.0.62

2 release files

0.0.61

2 release files

0.0.60

2 release files

0.0.59

2 release files

0.0.58

2 release files

0.0.57

2 release files

0.0.56

2 release files

0.0.55

2 release files

0.0.54

2 release files

0.0.53

2 release files

0.0.52

2 release files

0.0.51

2 release files

0.0.49

2 release files

0.0.48

2 release files

0.0.47

2 release files

0.0.46

2 release files

0.0.45

2 release files

0.0.44

2 release files

0.0.43

2 release files

0.0.39

2 release files

0.0.38

2 release files

0.0.37

2 release files

0.0.36

2 release files

0.0.35

2 release files

0.0.34

2 release files

0.0.33

2 release files

0.0.32

2 release files

0.0.31

2 release files

0.0.30

2 release files

0.0.29

2 release files

0.0.23

2 release files

0.0.22

2 release files

0.0.21

2 release files

0.0.20

2 release files

0.0.19

2 release files

0.0.18

2 release files

0.0.17

2 release files

0.0.16

2 release files

0.0.13

2 release files

0.0.12

2 release files

0.0.9

2 release files

0.0.8

2 release files

0.0.7

2 release files

0.0.6

2 release files

0.0.5

2 release files

0.0.4

2 release files

0.0.3

2 release files

0.0.2

2 release files

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