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Add the Docs MCP to your AI coding tool to get help building with Respan. No API key needed.
{
  "mcpServers": {
    "respan-docs": {
      "url": "https://respan.ai/docs/mcp"
    }
  }
}

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What is Braintrust?

Braintrust is an AI evaluation and observability platform. The Respan exporter registers as Braintrust’s background logger to mirror experiment and logging data to Respan.

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Setup

1

Install packages

pip install braintrust respan-exporter-braintrust openai
2

Set environment variables

export RESPAN_API_KEY="YOUR_RESPAN_API_KEY"
export BRAINTRUST_API_KEY="YOUR_BRAINTRUST_API_KEY"
export OPENAI_API_KEY="YOUR_OPENAI_API_KEY"
3

Initialize and run

import braintrust
from openai import OpenAI
from respan_exporter_braintrust import RespanBraintrustExporter

client = OpenAI()

with RespanBraintrustExporter():
    @braintrust.traced
    def generate_joke():
        response = client.chat.completions.create(
            model="gpt-4o-mini",
            messages=[{"role": "user", "content": "Tell me a joke about AI"}],
        )
        return response.choices[0].message.content

    @braintrust.traced
    def joke_pipeline():
        return generate_joke()

    result = joke_pipeline()
    print(result)
4

View your trace

Open the Traces page to see your Braintrust traces in Respan.

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Configuration

ParameterTypeDefaultDescription
api_keystrRESPAN_API_KEY env varRespan API key.
base_urlstr | NoneNoneAPI base URL.
See the Braintrust Exporter SDK reference for the full API.