# Readwise

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

Readwise is a service that helps users retain and revisit their reading highlights and annotations across various platforms. It surfaces saved highlights, offers spaced‑repetition reminders, and integrates with apps like Kindle, Instapaper, Pocket, and many note‑taking tools, enabling a continuous learning workflow for readers and researchers alike.

## Kin Score — 48.3 / 100 (developing)

Scored 2026-10-31 under rubric 0.25.0.

| Facet | Score |
|---|---|
| Discoverability | 57.1 |
| Contract Quality | 24.3 |
| Contract Governance | 35.6 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 50.0 |
| Access Clarity | 76.3 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 34.3 (matched via fallback).

## Agent readiness — 25.9 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | partial |
| 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 | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |
| Pagination Ratio | partial |
| Operation Distinctiveness | distinct |

## APIs (2)

- **Readwise API** — Readwise API allows creating, fetching, and updating highlights on behalf of the user.
- **Readwise API** — Readwise API as documented publicly: 14 operations. Contract generated from the documentation by API Evangelist (2026-10-28); not the provider's own document.

## Security (2)

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

## Plans (1)

- **Readwise Plans Pricing**

## Tags

Reading, Productivity, Knowledge Management, SaaS, API

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