# Spire Maritime

**Canonical:** https://apis.io/providers/spire-maritime/  
**Website:** https://spire.com/maritime/  
**APIs profiled:** 5

Spire Maritime (Spire Global) delivers satellite and terrestrial AIS vessel data - global ship positions, static vessel characteristics, voyage and destination data, port events, and predicted ETAs. The flagship Maritime 2.0 service is GraphQL-first at a single endpoint (https://api.spire.com/graphql, Bearer token auth), with a separate raw-TCP AIS stream for real-time message delivery in NMEA 0183 format. Access is enterprise / contact-sales. NOTE - following Spire Maritime's acquisition by Kpler, these APIs are being migrated/discontinued; new integrations are directed to developers.kpler.com.

## Kin Score — 31.6 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 31.6).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 38.9 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 34.2 |
| Developer Ergonomics | 21.4 |
| Commercial Clarity | 28.9 |
| Access Clarity | 28.9 |

## Agent readiness — 26.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| 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

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

## APIs (5)

- **Spire Maritime Vessels API** — GraphQL `vessels` query returning up to 1,000 vessels per page - static data (name, MMSI, IMO, callsign, flag, shipType, dimensions), last position update (lat/long, course, hea...
- **Spire Maritime Messages API** — GraphQL query surface for decoded AIS messages (position and static/voyage reports) filtered by MMSI and time window, returned in large paginated batches. Used to pull recent an...
- **Spire Maritime Port Events API** — GraphQL port-event queries - `portEventsByVessel`, `portEventsByLocation`, and `portEventsByShipType` - surfacing vessel arrivals and departures (ATA/ATD), port calls, and berth...
- **Spire Maritime Predicted ETA / Routing API** — Predicted vessel routing and ETA - a `predictedVesselRoute` query taking an origin, destination, and vessel and returning the predicted sea route, distance, and estimated time o...
- **Spire Maritime AIS TCP Stream** — Always-on real-time AIS feed delivered over a RAW TCP SOCKET (not HTTP, not WebSocket). Client opens a TCP connection to streamingv2.ais.spire.com port 56784, authenticates with...

## Security (2)

- **Spire Maritime Authentication** — http/token · 2 schemes
- **Spire Maritime Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Spire Maritime Plans Pricing**

## Tags

Vessel Tracking, AIS, Maritime, Satellite AIS, Ship Tracking, Real-Time Data, Maritime Data, Predicted ETA, Port Events, Location, GraphQL

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