Braintrust
Eval-first observability and experimentation platform for building and monitoring high-quality LLM/agent apps.
Last verified:
Braintrust is an evals-first LLM observability platform that connects production traces, human feedback, test datasets, experiments, and quality scores into one development loop. Founded in 2023 by ex-Figma ML platform lead Ankur Goyal, it raised an $80M Series B (ICONIQ, a16z, Greylock) in 2026 bringing total funding to roughly $124M. Braintrust offers SDKs in seven languages, a hosted or hybrid/BYOC deployment model, and an official remote MCP server for agentic access to eval data.
Pricing
| Tier | Price | Key features |
|---|---|---|
| Starter | $0/monthly | Unlimited users, projects, datasets, playgrounds, experiments, No credit card required |
| Pro | $249/monthly | Custom charts, Environments, Priority support, RBAC, Loop agent |
| Enterprise | Custom | Self-hosting / BYOC / hybrid deployment, RBAC, Premium support, Custom retention & export |
Source: https://www.braintrust.dev/pricing
Agent-readiness
- Discoverability
- 90/100
- Machine-readable content
- 85/100
- Programmatic access
- 95/100
- MCP / agent support
- 88/100
- Self-serve transactability
- 85/100
- Transparency
- 85/100
Security & compliance
- SSO / SAML
- Yes
- Encryption at rest
- Yes
- Encryption in transit
- Yes
- Audit log
- Not publicly documented
- Pentest report
- Not publicly documented
"Not publicly documented" means Crail found no public evidence either way — not a confirmed absence. See our methodology. Trust center: https://trust.braintrust.dev/.
FAQ
Does Braintrust have a free tier?
Yes, Braintrust offers a free tier or free trial.
Can you buy Braintrust without talking to sales?
Yes, Braintrust can be purchased self-serve without a sales call.
Does Braintrust have an official MCP (Model Context Protocol) server?
Yes, Braintrust publishes an official MCP server.
What compliance certifications does Braintrust hold?
Braintrust holds: SOC 2 Type II, HIPAA.
What people are saying on Reddit & Hacker News
Real, publicly-posted discussion — not a Crail-verified review. Always linked back to the original post so you can read it in context.
“Was also looking at Langfuse.ai or braintrust.dev”
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“I've been using Braintrust at Coda and it's awesome - saved us so much time. Congrats on the launch!”
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Reviews
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Methodology & disclosure
Data verified via agent crawled, last checked 2026-07-26. Agent-readiness methodology version crail-ar-v0.1. No vendor payment influences these scores — see our methodology page.