# Coincheck

**Canonical:** https://apis.io/providers/coincheck/  
**Website:** https://coincheck.com  
**APIs profiled:** 2

Coincheck is a Japanese cryptocurrency exchange. It documents a REST Exchange API (public market data plus HMAC-signed private trading, account, deposit and withdrawal endpoints) and WebSocket market feeds.

## Kin Score — 15.0 / 100 (emerging)

Scored 2026-11-06 under rubric 0.27.0. Trend: flat (-3.7 from 18.7).

| Facet | Score |
|---|---|
| Discoverability | 67.0 |
| Contract Quality | 11.6 |
| Contract Governance | 22.0 |
| Operational Transparency | 0.0 |
| Developer Ergonomics | 11.9 |
| Access Clarity | 11.8 |

Regulatory layer — **Securities & Market Data**: 12.0 (matched via weak_tags).

## Agent readiness — 18.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| 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 |
| MCP Tool Quality | na |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (2)

- **Coincheck Private API** — Authenticated account and trading
- **Coincheck Public API** — Unauthenticated market data

## Security (1)

- **Coincheck Domain Security** — TLSv1.3 · DMARC

## Tags

Company, Cryptocurrency, Exchange, Trading, Japan

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