Common questions

Sending a file costs zero tokens — no matter how big the document is. The file is read on your machine and uploaded straight to Sendle; the AI model never sees its contents, so size doesn’t matter. The only thing that uses tokens is asking Claude to collect a passage during a chat — that snippet goes through the conversation like anything else you say — and even then it’s just that snippet, not the finished book. Turning a collected book into an EPUB and sending it adds nothing.

Yes — 7 books a month, forever, no card required. Collecting and assembling in Claude Code is always free; only delivery to your reader counts. Send more than 7 a month and Plus ($4/month) removes the limit.

Sendle uses whichever account you’re signed in as when you authorize the plugin. To switch, tell Claude “switch my Sendle account”. A browser opens on the authorize page, which shows the account you’re signed in as. Pick “Not you? Use another account”, sign in as the one you want, and approve. A tell-tale sign you’re on the wrong account: a send lands in an inbox instead of your Kindle even though you’ve added it.

The small page after your content — traditionally, the note at the end of a book about how it was made. Ours currently says “Sent by sendle.app”. It never touches your content, it’s clearly separated, and it shows up honestly in the book’s contents page. Books on the Free plan include it; Plus members can turn it off in Account.

Markdown (.md), HTML (.html), or plain text. Point the plugin at a local file, or collect passages straight from a chat. Sendle renders it into a clean, readable EPUB — proper headings, lists, links, and code — and you don’t need to format anything specially: plain prose just works.

Anything Sendle delivers to your reader: an assembled book from Claude Code, claude.ai or Cowork, or a local file you send — each is one book against your monthly count. Collecting and assembling, without sending, never counts.

Just ask Claude in plain words, in any language: “send notes.md to my Kindle”, “add the summary above to sendle”, “send the book”. In Claude Code the /sendle commands do the same if you prefer them; in claude.ai and Cowork, add the Sendle connector first. Nothing to configure first: until you add an e-reader, sends go to your login inbox.

Yes, as a connector rather than the plugin. Cowork can’t run the plugin’s local server, so add https://api.sendle.app/mcp as a custom connector and authorize it once in your browser. Collecting passages from a chat, assembling a book and sending it then work the same as in Claude Code. The one exception is sending a local file directly — it reads the file from your machine, which Cowork’s cloud sandbox can’t reach, so that needs Claude Code; paste the text into the chat and collect it instead.

A report generator bundled with the Claude Code plugin. Ask for a write-up — “turn this into a report” or /sendle:single-html — and Claude produces one polished, self-contained HTML file: fixed table of contents, callout boxes, tables, readable offline. It doubles as Sendle input: say “send it to my Kindle” and the same file is re-typeset into a clean EPUB for e-ink. The HTML file stays yours either way.

Almost always the sender isn’t allow-listed. Add Sendle’s sender address to your Amazon Approved Personal Document E-mail List (Manage Content & Devices → Preferences → Personal Document Settings). Your Account page shows the exact address to add. Amazon also emails you when it rejects an unapproved sender.

Yes. Sendle delivers a standard EPUB by email, so any reader that accepts email works — or just your own inbox. “Kindle” is simply the common case.

We store the books you collect so you can manage and re-send them, and you can delete any of them anytime. One-shot file sends aren’t stored — only a delivery record (title, timestamp) for your send history. We don’t sell your data — see the Privacy Policy.

Payments go through Paddle, our reseller and merchant of record — the same checkout used by thousands of software companies. Paddle handles VAT/sales tax, and your card statement will show PADDLE.NET* SENDLE. Cancel anytime and keep access until the period ends; refunds follow Paddle’s buyer terms — email support@sendle.app and we’ll help.