braintrust.dev

Braintrust is an AI observability and evaluation platform for tracing production AI behavior, curating datasets, running evaluations, and managing prompts and related workflows. Teams use it to measure quality, investigate failures, and improve AI systems over time.

3 integrations · MCP · REST · CLI

Braintrust exposes a REST API, a remote MCP server, and the `bt` CLI; all require Braintrust-issued credentials, with API key auth everywhere and OAuth supported for the CLI and MCP clients.

discovered 2mo ago

MCP servers1

Braintrust MCPdiscoveredstreamable-http

REST · OpenAPI1

Braintrust REST APIdiscoveredrest

CLI1

Braintrust CLIdiscoveredbt

Credentials

Braintrust API keybearerGet token ↗

Create an API key in Settings > API keys. The API reference shows using it as Authorization: Bearer $BRAINTRUST_API_KEY. If you prefer the CLI flow, `bt setup` can create a new key interactively and prints an export BRAINTRUST_API_KEY=<key> command.

Braintrust OAuth login for CLI/MCP clientsoauth2$ bt auth login

Acquired by the CLI — running bt auth login opens the auth flow and stores the credential.

conventions · 1/7 published

integrations.json——
llms.txt✓https://braintrust.dev/llms.txt
API catalog✗/.well-known/api-catalog
OpenAPI document✗/api/schema/, /openapi.json, /swagger.json, /api/openapi.json, or /v1/openapi.json
MCP server card✗/.well-known/mcp/server-card.json
OAuth protected resource✗/.well-known/oauth-protected-resource
Agent card✗/.well-known/agent-card.json
Agent skills✗/.well-known/agent-skills/index.json

Publish these signals → /publishing