# Capacities

**Canonical:** https://apis.io/providers/capacities-io/  
**Website:** https://capacities.io/  
**APIs profiled:** 1

Capacities is a note‑taking and knowledge‑management app that organizes ideas as connected objects instead of traditional files and folders. It offers a free tier across macOS, Windows, Linux, iOS, and Android, focusing on linking thoughts, visualizing relationships, and enhancing personal knowledge workflows.

## Kin Score — 50.7 / 100 (developing)

Scored 2026-11-06 under rubric 0.27.0.

| Facet | Score |
|---|---|
| Discoverability | 67.0 |
| Contract Quality | 61.8 |
| Contract Governance | 35.6 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 35.7 |
| Access Clarity | 47.4 |

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

## Agent readiness — 46.9 (agent-ready)

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

## Access

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

## APIs (4)

- **Capacities Blocks API** — Block content operations on objects
- **Capacities Object API** — Operations on objects in a space
- **Capacities Objects API** — Search and list objects in a space
- **Capacities Space API** — Space related operations

## Agentic access (1)

- **Capacities Io Agentic Access** — 22 operations · 14 acting

## Security (2)

- **Capacities Io Authentication** — 2 schemes
- **Capacities Io Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Plans (1)

- **Capacities Io Plans Pricing**

## Tags

Knowledge Management, Note Taking, Productivity, Cross-Platform, Collaboration

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