# Sinay

**Canonical:** https://apis.io/providers/sinay/  
**Website:** https://sinay.ai  
**APIs profiled:** 6

Sinay is a maritime data and analytics company whose Developers Platform exposes a marketplace of REST APIs for the shipping and ocean-tech industry - vessel and port lookup from combined satellite and terrestrial AIS, metocean (weather and ocean) conditions, per-voyage CO2 emissions modeled on the GLEC Framework, ETA prediction, live port congestion, sailing schedules, and underwater noise. Every API is called over HTTPS at api.sinay.ai, authenticated with a single API_KEY header, and metered as monthly API units / credits with a free developer key to start.

## Kin Score — 38.8 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 38.8).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 57.5 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 52.6 |
| Access Clarity | 52.6 |

## 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 | verified |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium (free trial) · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: yes (confidence: high).

## APIs (6)

- **Sinay CO2 Emission API** — Per-voyage CO2 emission computation using vessel-model and GLEC tradelane methods.
- **Sinay ETA API** — Estimated time of arrival prediction for a vessel to a destination port.
- **Sinay Metocean API** — Meteorological and oceanographic conditions for an area and time.
- **Sinay Port Congestion API** — Aggregated live port congestion data.
- **Sinay Ports and Vessels API** — Vessel and port lookup from combined satellite and terrestrial AIS.
- **Sinay Usage API** — Monthly API usage and credit-consumption reporting.

## Agentic access (1)

- **Sinay Agentic Access** — 14 operations · 4 acting

## Security (2)

- **Sinay Authentication** — apiKey · 1 scheme
- **Sinay Domain Security** — TLSv1.3 · HSTS

## Plans (1)

- **Sinay Plans Pricing**

## Tags

Vessel Tracking, AIS, Maritime, Maritime Data, Weather, CO2 Emissions, Port Congestion, Ship Tracking, ETA, Ocean Data

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