# Thinking Machines

**Canonical:** https://apis.io/providers/thinking-machines/  
**Website:** https://thinkingmachines.ai/  
**APIs profiled:** 1

Thinking Machines Lab is an artificial intelligence research and product company building tools to make AI systems more widely understood, customizable, and generally capable. Its flagship developer product is Tinker, a managed API with an official Python SDK and CLI for fine-tuning and sampling open-weight language models (supervised fine-tuning, reinforcement learning, and distillation), alongside Inkling, an open-weights model. The Tinker platform exposes ServiceClient, TrainingClient, SamplingClient, and RestClient interfaces plus OpenAI- and Anthropic-compatible inference endpoints, governed by a project-scoped permission model.

## Kin Score — 33.7 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+1.1 from 32.6).

| Facet | Score |
|---|---|
| Discoverability | 87.0 |
| Contract Quality | 0.0 |
| Governance | 4.5 |
| Contract Governance | 4.5 |
| Operational Transparency | 36.8 |
| Developer Ergonomics | 64.3 |
| Commercial Clarity | 34.2 |
| Access Clarity | 34.2 |

## Agent readiness — 14.5 (agent-aware)

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

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (1)

- **Tinker API** — Managed training/fine-tuning and sampling API for open-weight language models, consumed through the official Tinker Python SDK and CLI. Supports SFT, RL, and distillation workfl...

## Security (3)

- **Thinking Machines Authentication** — 1 scheme
- **Thinking Machines Domain Security** — TLSv1.2 · HSTS · DMARC
- **Thinking Machines Vulnerability Disclosure** — contact published

## Tags

Company, Artificial Intelligence, Machine-Learning, Fine-Tuning, LLM, Model Training, Developer Tools

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