# Sail

**Canonical:** https://apis.io/providers/sail/  
**Website:** https://www.sailresearch.com/  
**APIs profiled:** 5

Sail Research provides cloud infrastructure for running long-horizon AI agents efficiently. Its inference platform serves leading open-source models (GLM, Kimi, DeepSeek, gpt-oss, Gemma, and more) through an OpenAI-compatible Responses and Chat Completions API plus an Anthropic-compatible Messages API, so existing SDKs work as drop-in clients. "Completion windows" (asap, priority, standard, flex) trade latency for 30-80% token savings, and a Batch API processes up to 100,000 requests asynchronously. Sailboxes add persistent virtual-machine compute for agents that need to run indefinitely, with checkpoint/resume, networking, and a native CLI. The platform supports LoRA fine-tunes, Tinker RL rollouts, prompt caching, completion webhooks, and usage/observability (Voyages) for background agents.

## Kin Score — 53.1 / 100 (developing)

Scored 2026-08-17 under rubric 0.11.0. Trend: flat (+0.0 from 53.1).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 68.5 |
| Governance | 11.5 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 71.2 |
| Commercial Clarity | 42.1 |

## Agent readiness — 62.4 (agent-native)

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

## Access

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

## APIs (5)

- **Sail Batches API API** — Submit and manage batches of requests.
- **Sail Chat Completions API API** — OpenAI-compatible Chat Completions API endpoints.
- **Sail Messages API API** — Anthropic-compatible Messages API endpoints.
- **Sail Models API API** — Model discovery endpoints.
- **Sail Responses API API** — OpenAI-compatible Responses API endpoints.

## MCP servers (1)

- **sail-mcp.yml**

## Agentic access (1)

- **Sail Agentic Access** — 10 operations · 5 acting

## Security (2)

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

## Tags

Company, AI, Machine Learning, LLM, Inference, Agents, Open Source Models, Infrastructure, Developer Tools

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