# Chatwork

**Canonical:** https://apis.io/providers/chatwork/  
**Website:** https://go.chatwork.com  
**APIs profiled:** 9

Chatwork is a Japanese business messaging and collaboration platform similar to Slack, providing group chat rooms, task management, file sharing, and video calls for teams and organizations. The Chatwork REST API v2 enables programmatic access to user info, contacts, chat rooms, messages, tasks, and files, authenticated via an API token sent in the X-ChatWorkToken HTTP header.

## Kin Score — 28.3 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 28.3).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 55.2 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 10.5 |
| Developer Ergonomics | 25.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

## Agent readiness — 30.2 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | yes |
| 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 |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (9)

- **Chatwork Contacts API** — The Contacts API from Chatwork — 1 operation(s) for contacts.
- **Chatwork Files API** — The Files API from Chatwork — 2 operation(s) for files.
- **Chatwork Incoming Requests API** — The Incoming Requests API from Chatwork — 2 operation(s) for incoming requests.
- **Chatwork Link API** — The Link API from Chatwork — 1 operation(s) for link.
- **Chatwork Me API** — The Me API from Chatwork — 3 operation(s) for me.
- **Chatwork Members API** — The Members API from Chatwork — 1 operation(s) for members.
- **Chatwork Messages API** — The Messages API from Chatwork — 4 operation(s) for messages.
- **Chatwork Rooms API** — The Rooms API from Chatwork — 2 operation(s) for rooms.
- **Chatwork Tasks API** — The Tasks API from Chatwork — 3 operation(s) for tasks.

## MCP servers (1)

- **MCP Server**

## Agentic access (1)

- **Chatwork Agentic Access** — 32 operations · 17 acting

## Security (3)

- **Chatwork Authentication** — apiKey · 1 scheme
- **Chatwork Domain Security** — TLSv1.2 · HSTS · DMARC
- **Chatwork Vulnerability Disclosure** — disclosure policy published

## Tags

Messaging, Chat, Collaboration, Productivity, Task

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