# Braintrust

**Canonical:** https://apis.io/providers/braintrust-data/  
**Website:** https://www.braintrust.dev/  
**APIs profiled:** 12

Braintrust (braintrust.dev) is an end-to-end platform for building, evaluating, and observing AI applications. Its REST API at api.braintrust.dev exposes projects, experiments, datasets, logs/spans, prompts, functions and scorers, evals, and full organization/ACL management, plus an OpenAI-compatible AI proxy, all authenticated with a Bearer API key.

## Kin Score — 42.6 / 100 (developing)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 42.6).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 66.9 |
| Governance | 11.4 |
| Contract Governance | 11.4 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 23.8 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 30.3 (agent-aware)

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

## Access

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

## APIs (12)

- **Braintrust ACL API** — The ACL API from Braintrust — 4 operation(s) for acl.
- **Braintrust AI Proxy API** — The AI Proxy API from Braintrust — 3 operation(s) for ai proxy.
- **Braintrust Credentials API** — The Credentials API from Braintrust — 3 operation(s) for credentials.
- **Braintrust Datasets API** — The Datasets API from Braintrust — 6 operation(s) for datasets.
- **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 Logs API** — The Logs API from Braintrust — 3 operation(s) for logs.
- **Braintrust Organization API** — The Organization API from Braintrust — 3 operation(s) for organization.
- **Braintrust Project Configuration API** — The Project Configuration API from Braintrust — 4 operation(s) for project configuration.
- **Braintrust Projects API** — The Projects API from Braintrust — 2 operation(s) for projects.
- **Braintrust Prompts API** — The Prompts API from Braintrust — 2 operation(s) for prompts.

## Agentic access (1)

- **Braintrust Data Agentic Access** — 69 operations · 42 acting

## Security (2)

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

## Plans (1)

- **Braintrust Data Plans Pricing**

## Tags

Artificial Intelligence, LLM, Evaluation, Observability, LLMOps

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