# SMKlog

**Canonical:** https://apis.io/providers/smklog-com/  
**Website:** https://smklog.com/  
**APIs profiled:** 4

SMKlog (SMKLOG-2022 LLC, Berkeley Heights, New Jersey) is an independent US parcel shipping calculator and label seller: describe an item in plain words, get live USPS, UPS, FedEx and DHL Express rates from a US origin to the US, Canada, the UK, Germany or Australia, and buy the label online. The same pricing engine is published for machines as the SMKlog Quote API on quote-api.smklog.com: an OpenAPI 3.1 contract with no key required, a remote MCP server with five tools (plus an open-source stdio bridge), an A2A agent card, an RFC 9727 api-catalog, RFC 8414/9728 OAuth metadata for an optional client_credentials rate-limit tier, two provider-published Agent Skills and an llms.txt. Agents price and prepare checkout; a human always completes payment on smklog.com.

## Kin Score — 54.7 / 100 (strong)

Scored 2026-10-09 under rubric 0.23.0. Trend: flat (+0.5 from 54.2).

| Facet | Score |
|---|---|
| Discoverability | 80.0 |
| Contract Quality | 43.9 |
| Contract Governance | 18.2 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 52.4 |
| Access Clarity | 63.2 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 44.1 (matched via fallback).

## Agent readiness — 41.9 (agent-ready)

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

## APIs (3)

- **SMKlog Agent API** — The Agent API from SMKlog — 2 operation(s) for agent.
- **SMKlog Quote API** — The Quote API from SMKlog — 1 operation(s) for quote.
- **SMKlog Status API** — The Status API from SMKlog — 1 operation(s) for status.

## MCP servers (1)

- **SMKlog MCP Server** — Remote MCP server at quote-api.smklog.com over HTTP; 5 tools listed.

## Security (3)

- **Smklog Com Authentication** — none/oauth2 · 2 schemes
- **Smklog Com Domain Security** — TLSv1.3 · HSTS · DNSSEC · DMARC
- **Smklog Com Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Smklog Com Plans Pricing**

## Tags

Company, Shipping, Logistics, Parcel Shipping, shipping-rates, Shipping Labels, E-Commerce, Agents, MCP, A2A

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