# HMM

**Canonical:** https://apis.io/providers/hmm21/  
**Website:** https://www.hmm21.com  
**APIs profiled:** 6

HMM Co., Ltd. is a South Korean shipping and logistics company headquartered at the Hyundai Group Building in Seoul. Its services include container shipping (general, reefer, oversized and dangerous cargo), bulk shipping (tankers, gas tankers, pure car and truck carriers, heavy lift and project cargo), terminals and intermodal transport. HMM says it launched four API services in 2022 and is adding more, from booking through to payment, that follow the Digital Container Shipping Association (DCSA) standards. The APIs are offered through the HMM Open API Developer Portal (apiportal.hmm21.com), where companies sign up and wait for approval before using them. The gallery lists APIs such as DCSA Arrival Notice, DCSA Booking and e-BL Company ID receipt.

## Kin Score — 37.9 / 100 (thin)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 73.2 |
| Contract Quality | 40.5 |
| Contract Governance | 18.2 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 63.7 |
| Access Clarity | 23.7 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 20.6 (matched via fallback).

## Agent readiness — 26.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | derived |
| OpenAPI Examples | partial |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | na |
| Operation Distinctiveness | distinct |

## APIs (6)

- **HMM Arrival Notice API** — The Arrival Notice API from HMM — 1 operation(s) for arrival notice.
- **HMM Bookings API** — The Bookings API from HMM — 2 operation(s) for bookings.
- **HMM Eblcompany Id Requests API** — The Eblcompany Id Requests API from HMM — 1 operation(s) for eblcompany id requests.
- **HMM KR NEXAWAVE CERT FILE API** — The KR NEXAWAVE CERT FILE API from HMM — 1 operation(s) for kr nexawave cert file.
- **HMM KR NEXAWAVE CLASS SURVEY API** — The KR NEXAWAVE CLASS SURVEY API from HMM — 1 operation(s) for kr nexawave class survey.
- **HMM KR NEXAWAVE CMS PMS API** — The KR NEXAWAVE CMS PMS API from HMM — 1 operation(s) for kr nexawave cms pms.

## Agentic access (1)

- **Hmm21 Agentic Access** — 9 operations · 4 acting

## Security (2)

- **Hmm21 Authentication** — apiKey · 1 scheme
- **Hmm21 Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Shipping, Logistics, Container Shipping, Maritime, DCSA, Supply Chain

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/hmm21/). Scores are computed from the provider's own public artifacts under a published rubric.