Sinay (sinay)

About this repository

This is not our API. This repository is an independent, third-party profile of a company's publicly available API surface, maintained by API Evangelist. API Evangelist does not operate, host, resell, or support this company's APIs, and is not affiliated with or endorsed by the company unless stated on the profile.

Where the information came from. Everything here is assembled from material a member of the public can reach with a browser and no credentials — the company's own website, developer portal and documentation, the specifications it publishes for public use (OpenAPI, AsyncAPI, JSON Schema, apis.json, llms.txt and similar), its public repositories, and its public status, pricing and changelog pages. Nothing here is obtained by breaching a system, defeating an access control, or using credentials of any kind.

The rating is an independent assessment. The Kin Score and Agent Readiness rating are independently calculated scores of a company's public API artifacts, produced by API Evangelist against a published rubric. They are not certifications, endorsements, security assessments, or audits, and they score published artifacts — not the quality, safety, or security of the software.

Corrections, re-scores, and removal are free. No partnership, contract, or purchase is required, and you do not need to justify the request.

• Something wrong? Open an issue on this repository, or email info@apievangelist.com.
• Published something new? Ask for a re-score and we will re-run the rating.
• Want the listing taken down? Say so and we will honor it. The profile is reduced to your company name, a factual description, and a link to your own site, and the company is recorded as unrated — never scored zero for having asked.

Response times. Acknowledgement within one business day; removal or restriction within two business days; corrections and re-scores within five business days.

On a security or compliance team? Email info@apievangelist.com with security in the subject line and you will get a person, not a form. We will tell you exactly which public URLs this profile was built from so your team can see the same surface we did, and we will take the listing down on request while you work through it.

Full detail: Where this data comes from

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.

APIs.json: https://raw.githubusercontent.com/api-evangelist/sinay/refs/heads/main/apis.yml

Access Model (read this first)

• Marketplace of per-product REST APIs. Every Sinay API is served over HTTPS from the single host api.sinay.ai, with each product mounted under its own versioned base path - e.g. https://api.sinay.ai/co2/api/v2 and https://api.sinay.ai/ports-vessels/api/v1.
• One auth scheme everywhere. All endpoints require an API key sent in an API_KEY request header. Get a free key from the Sinay Developers Platform.
• Per-API subscriptions / credits. Usage is metered as monthly API calls / API units (credits). Published tiers: a Free plan (~500 calls/month), a Pro plan (~10,000 calls/month), and a custom Enterprise plan, plus a no-credit-card free trial (~100 calls/month). Some endpoints consume more than one API unit per call. Each API reports its own consumption via a /usages endpoint (or /consumption on Port Congestion). Prices/currency are not reconciled here - confirm on the Developers Platform.
• REST only. No public WebSocket API is documented. A separate Webhooks API (container-tracking / Safecube surface) pushes events via HTTP POST to a subscriber endpoint; it is out of scope for the five maritime APIs profiled here.

This entry profiles five of Sinay's maritime-data APIs. The Swagger index at api.sinay.ai/doc also lists live specs for underwater noise, sailing schedules, Safecube Ports Intelligence (beta), container tracking, webhooks, and Safecube - not profiled separately here.

Tags

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

Timestamps

• Created: 2026-07-12
• Modified: 2026-07-12

APIs

Sinay Ports and Vessels API

Look up vessels by name, MMSI, or IMO and ports by name or UN/LOCODE from Sinay's maritime reference data, built on combined satellite and terrestrial AIS.

• Human URL: https://sinay.ai/en/sinay-hub/ports-and-vessels-api/
• Base URL: https://api.sinay.ai/ports-vessels/api/v1
• Endpoints: GET /vessels, GET /ports, GET /usages

Sinay Metocean API

Retrieve meteorological and oceanographic (weather and ocean) conditions for a geographic area and time window from a chosen model.

• Human URL: https://sinay.ai/en/sinay-hub/metocean-api/
• Base URL: https://api.sinay.ai/metocean/api/v1
• Endpoints: GET /models, POST /stations, GET /usages

Sinay CO2 Emission API

Compute the CO2 emissions of a container voyage between two ports for a given vessel (IMO or MMSI), returning voyage length and tons of CO2 per TEU via a vessel-model method and a GLEC Framework tradelane method (WTT/TTW/WTW).

• Human URL: https://sinay.ai/en/sinay-hub/co2-api/
• Base URL: https://api.sinay.ai/co2/api/v2
• Endpoints: POST /compute-co2, GET /usages

Sinay ETA API

Predict a vessel's estimated time of arrival to a destination port, routed from its latest AIS position or from a specified departure port and date.

• Human URL: https://sinay.ai/en/sinay-hub/eta-api/
• Base URL: https://api.sinay.ai/etac/api/v1
• Endpoints: POST /compute-eta, GET /usages

Sinay Port Congestion API

Retrieve aggregated live port congestion data for a single port by UN/LOCODE or up to ten ports at once, plus credit-consumption reporting.

• Human URL: https://sinay.ai/en/sinay-hub/port-congestion-api/
• Base URL: https://api.sinay.ai/congestion/api/v1
• Endpoints: GET /congestion/{portCode}, POST /congestion/batch, GET /consumption/current-period, GET /consumption/periods

Artifacts

• OpenAPI - consolidated description of all five APIs
• Postman Collection
• Open Collection
• Authentication
• Plans
• Rate Limits
• FinOps
• Domain Security
• Review

Common Properties

• Website
• Documentation
• Sign Up / Developers Platform
• LinkedIn

Grounding & Honesty Notes

• Endpoints, methods, the API_KEY header security scheme, and the CO2 / ETA / congestion request-response shapes were transcribed from the live per-product Swagger files at https://api.sinay.ai/<product>/api/<version>/swagger.yaml (confirmed 2026-07-12).
• In the consolidated OpenAPI, some response bodies (vessel/port records, metocean stations, ETA result, congestion aggregate) are represented as generic objects; the authoritative field-level schemas live in the upstream per-product Swagger.
• Pricing (plans, finops) is modeled from public descriptions of the Developers Platform and marked reconciled: false; per-unit prices, currency, and per-endpoint credit weightings are unverified.

Maintainers

FN: Kin Lane Email: kin@apievangelist.com