# Braintrust

**Canonical:** https://apis.io/providers/braintrust/  
**Website:** https://www.braintrust.dev  
**APIs profiled:** 29

Braintrust is an enterprise-grade AI observability and evaluation platform for teams building LLM applications. It provides experiment tracking, dataset management, production tracing, prompt versioning, online and offline scoring, and human review workflows. Customers include AI-native startups and large enterprises that need to compare models, iterate on prompts, catch regressions, and leverage real user data to continuously improve their AI features. Braintrust offers a SaaS platform, plus self-hosted deployments in AWS, GCP, and Azure, and monetizes through usage-based pricing tied to spans and seats.

## Kin Score — 40.5 / 100 (developing)

Scored 2026-08-21 under rubric 0.12.0. Trend: flat (+0.0 from 40.5).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 61.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 39.5 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 35.0 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| Rate Limit Signal | verified |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Free · Self-serve signup — onboarding: self-serve, pricing: free, trial: no (confidence: high).

## APIs (29)

- **Braintrust API** — The Braintrust REST API provides programmatic access to projects, experiments, datasets, prompts, functions, logs, and organization resources. It supports both US (api.braintrus...
- **Braintrust Acls API** — The Acls API from Braintrust — 4 operation(s) for acls.
- **Braintrust AiSecrets API** — The AiSecrets API from Braintrust — 2 operation(s) for aisecrets.
- **Braintrust ApiKeys API** — The ApiKeys API from Braintrust — 2 operation(s) for apikeys.
- **Braintrust CORS API** — The CORS API from Braintrust — 65 operation(s) for cors.
- **Braintrust CrossObject API** — The CrossObject API from Braintrust — 1 operation(s) for crossobject.
- **Braintrust Datasets API** — The Datasets API from Braintrust — 6 operation(s) for datasets.
- **Braintrust DatasetSnapshots API** — The DatasetSnapshots API from Braintrust — 2 operation(s) for datasetsnapshots.
- **Braintrust Environments API** — The Environments API from Braintrust — 2 operation(s) for environments.
- **Braintrust EnvVars API** — The EnvVars API from Braintrust — 2 operation(s) for envvars.
- **Braintrust Evals API** — The Evals API from Braintrust — 1 operation(s) for evals.
- **Braintrust Experiments API** — The Experiments API from Braintrust — 6 operation(s) for experiments.
- **Braintrust Functions API** — The Functions API from Braintrust — 3 operation(s) for functions.
- **Braintrust Groups API** — The Groups API from Braintrust — 2 operation(s) for groups.
- **Braintrust Logs API** — The Logs API from Braintrust — 3 operation(s) for logs.
- **Braintrust McpServers API** — The McpServers API from Braintrust — 2 operation(s) for mcpservers.
- **Braintrust Organizations API** — The Organizations API from Braintrust — 3 operation(s) for organizations.
- **Braintrust Other API** — The Other API from Braintrust — 1 operation(s) for other.
- **Braintrust ProjectAutomations API** — The ProjectAutomations API from Braintrust — 2 operation(s) for projectautomations.
- **Braintrust Projects API** — The Projects API from Braintrust — 2 operation(s) for projects.
- **Braintrust ProjectScores API** — The ProjectScores API from Braintrust — 2 operation(s) for projectscores.
- **Braintrust ProjectTags API** — The ProjectTags API from Braintrust — 2 operation(s) for projecttags.
- **Braintrust Prompts API** — The Prompts API from Braintrust — 2 operation(s) for prompts.
- **Braintrust Proxy API** — The Proxy API from Braintrust — 6 operation(s) for proxy.
- **Braintrust Roles API** — The Roles API from Braintrust — 2 operation(s) for roles.
- **Braintrust ServiceTokens API** — The ServiceTokens API from Braintrust — 2 operation(s) for servicetokens.
- **Braintrust SpanIframes API** — The SpanIframes API from Braintrust — 2 operation(s) for spaniframes.
- **Braintrust Users API** — The Users API from Braintrust — 2 operation(s) for users.
- **Braintrust Views API** — The Views API from Braintrust — 2 operation(s) for views.

## Agentic access (1)

- **Braintrust Agentic Access** — 208 operations · 92 acting

## Security (2)

- **Braintrust Authentication** — http · 1 scheme
- **Braintrust Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Braintrust Plans Pricing**

## Tags

Artificial Intelligence, LLM, Observability, Evaluation, Experiments, Datasets, Prompts, Tracing, Monitoring, Scoring, AI Engineering, Generative AI

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/braintrust/). Scores are computed from the provider's own public artifacts under a published rubric.