Independent review. IonBin has no partnership with Readwise and was not paid for this page. Our evaluation is our own, based on public documentation and our research. Product names are trademarks of their owners and are used for identification only. How disclosure works.
Collects highlights from books, articles and PDFs, with Reader for saving and reading. The official Readwise MCP gives AI assistants your highlights to outline and cite from.
Billed annually, Readwise Lite is $5.59/month and full Readwise $9.99/month, which adds the Reader app; monthly billing for full Readwise is $12.99. Readwise is free for the first 30 days. Checked 2026-10-17. source ↗
The official remote server at mcp2.readwise.io searches highlights with hybrid vector and full-text search and works with your Reader library, such as triaging the inbox and tagging documents. source ↗
How Readwise connects to each AI platform: native connector or MCP, API through code the agent writes, browser control, or file upload.
| Platform | MCP / connector | API (agent-written code) | Browser | Upload / export |
|---|---|---|---|---|
| Claude (incl. Claude Code) | Confirmed Readwise's docs name Claude (incl. Claude Code) Readwise docs ↗Claude (incl. Claude Code) MCP docs ↗ | Confirmed Claude (incl. Claude Code) can run code; Readwise publishes an API. Readwise API ↗Claude (incl. Claude Code) docs ↗ | Confirmed Claude Code with the Claude in Chrome extension (Chrome, Edge and other Chromium browsers) Claude (incl. Claude Code) browser docs ↗ | Confirmed Export from Readwise, then works on the files in your project; chat accepts attachments Claude (incl. Claude Code) docs ↗ |
| OpenAI Codex | Confirmed Readwise's docs name OpenAI Codex Readwise docs ↗OpenAI Codex MCP docs ↗ | Confirmed OpenAI Codex can run code; Readwise publishes an API. Readwise API ↗OpenAI Codex docs ↗ | Confirmed Only in the ChatGPT desktop app; not in the Codex CLI or IDE extension OpenAI Codex browser docs ↗ | Confirmed Export from Readwise, then works on local repositories OpenAI Codex docs ↗ |
| Google Antigravity | Not documented Readwise has an official MCP server and Google Antigravity supports MCP, but Readwise's docs don't name this pairing. Auth setup may differ. Readwise MCP docs ↗Google Antigravity MCP docs ↗ | Confirmed Google Antigravity can run code; Readwise publishes an API. Readwise API ↗Google Antigravity docs ↗ | Confirmed Browser subagent via /browser, documented as an Antigravity App feature; the IDE has separate browser docs Google Antigravity browser docs ↗ | Confirmed Export from Readwise, then works on local projects and worktrees Google Antigravity docs ↗ |
Readwise's docs also name: ChatGPT, Perplexity.
Confirmed means both the tool's and the platform's official docs describe that route (links in the cell); IonBin has not tested every pairing. Not documented means it may work, but no official docs describe that route end to end. Checked Oct 17, 2026.
| Level | Status | Detail / source |
|---|---|---|
| Native connector / MCP | Yes | Official docs ↗ |
| API / CLI | Yes | Official docs ↗ |
| Browser-only | No | Web app; also reachable programmatically |
| Bulk upload / import | Yes | Create many highlights in one API request (https://readwise.io/api_deets) |
Recorded Oct 17, 2026. Setup and plan limits vary; check the vendor's docs. How levels are assigned.
Via its official MCP server, from MCP-capable platforms such as ChatGPT, Claude, Gemini (Google), Google Antigravity, OpenAI Codex.
Via its API, through automation hubs: Gumloop, Make, n8n, Zapier.
No long-form review yet. Verdict is based on research, not hands-on testing.
Docs, wikis and databases in one workspace. Notion AI is a trial on Free and Plus; Business adds Notion Agent, AI meeting notes and Enterprise Search. A hosted MCP server lets AI clients read and update your pages.
Local-first notes stored as plain Markdown files, with links and plugins. Because notes are files on disk, tools can read a vault folder directly, and the official Obsidian CLI can search and create notes in a running desktop app.
