{"slug":"braintrust","name":"Braintrust","owner":null,"repo":null,"category":"observability-eval","lang":"","blurb":"Eval-first AI platform unifying evaluations, tracing/logging and prompt playground for shipping quality AI products.","use_cases":"[]","alternatives":[],"stars":0,"pushed_at":null,"synced_at":null,"kind":"api","one_liner":"Eval-first AI platform unifying evaluations, tracing/logging and prompt playground for shipping quality AI products.","website":"https://www.braintrust.dev","docs_url":"https://www.braintrust.dev/docs","signup_url":"https://www.braintrust.dev/signup","pricing_model":"freemium","pricing_note":"Free Starter: 1 GB processed data, 10k scores, 14-day retention; Pro $249/mo (5 GB, 50k scores); Enterprise custom. No per-seat charge.","auth_type":"api-key","agent_signup":"self-serve-instant-key","agent_signup_note":"Sign up free with no credit card and generate an API key from the dashboard. Ships a mature MCP server for IDE-native trace/eval querying (Cursor, Claude Code, VS Code).","mcp_server":"","sdks":["Python","TypeScript","Go","REST"],"code_sample":"{\"lang\":\"python\",\"code\":\"# pip install braintrust autoevals ; export BRAINTRUST_API_KEY=...\\nfrom braintrust import Eval\\nfrom autoevals import Levenshtein\\n\\nEval(\\n    \\\"my-project\\\",\\n    data=lambda: [{\\\"input\\\": \\\"Hi\\\", \\\"expected\\\": \\\"Hello\\\"}],\\n    task=lambda text: text.replace(\\\"Hi\\\", \\\"Hello\\\"),\\n    scores=[Levenshtein],\\n)\"}","tags":["evals","tracing","experiments","prompt-playground","mcp"],"useCases":[],"codeSample":{"lang":"python","code":"# pip install braintrust autoevals ; export BRAINTRUST_API_KEY=...\nfrom braintrust import Eval\nfrom autoevals import Levenshtein\n\nEval(\n    \"my-project\",\n    data=lambda: [{\"input\": \"Hi\", \"expected\": \"Hello\"}],\n    task=lambda text: text.replace(\"Hi\", \"Hello\"),\n    scores=[Levenshtein],\n)"},"oneLiner":"Eval-first AI platform unifying evaluations, tracing/logging and prompt playground for shipping quality AI products.","docsUrl":"https://www.braintrust.dev/docs","signupUrl":"https://www.braintrust.dev/signup","pricingModel":"freemium","pricingNote":"Free Starter: 1 GB processed data, 10k scores, 14-day retention; Pro $249/mo (5 GB, 50k scores); Enterprise custom. No per-seat charge.","authType":"api-key","agentSignup":"self-serve-instant-key","agentSignupNote":"Sign up free with no credit card and generate an API key from the dashboard. Ships a mature MCP server for IDE-native trace/eval querying (Cursor, Claude Code, VS Code).","mcpServer":""}