Drafts

Sending and scheduling both commit: something leaves, now or later. A draft is the third thing, and the only one that puts a person back in the loop — compose a reply, leave it in the Drafts folder, let somebody read it and press send. Required permission: Drafts → Read to list, Drafts → Write to create, edit or delete.

Drafts written here appear in the dashboard. That is the point: a draft nobody can see is just a string in a database. Whoever opens the web app finds it in Drafts, opens it in the composer, edits it and sends it like any other.

These are organization drafts. A key never sees anybody’s personal drafts.Drafts written by a person in the web app belong to that person and are invisible to every API key. Half-written mail is often the most sensitive thing in an account, and a key leaked from a CI job should not expose what somebody has not decided to send yet.The reverse is not symmetrical on purpose: drafts a key creates are visible to your team in the dashboard, because a draft nobody can reach cannot be reviewed.

List drafts

GET https://app.ruber.me/api/v1/drafts

Takes no parameters — drafts belong to the organization, not to a mailbox. Newest first, up to 200.

{
  "data": [
    {
      "id": "61b76e1d-bd4b-4729-aae9-b3fdc8af1caa",
      "subject": "Re: Invoice 42",
      "to": ["billing@supplier.com"],
      "cc": [],
      "bcc": [],
      "attachment_count": 0,
      "created_at": "2026-09-07T22:20:05.446Z",
      "updated_at": "2026-09-07T22:20:18.411Z"
    }
  ]
}

No bodies in the list — fetch one for its text.

Create a draft

POST https://app.ruber.me/api/v1/drafts

curl -X POST https://app.ruber.me/api/v1/drafts \
  -H "Authorization: Bearer rk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "to": ["billing@supplier.com"],
    "subject": "Re: Invoice 42",
    "text": "Thanks — paid this morning.",
    "html": "<p>Thanks — paid this morning.</p>"
  }'

Field	Type
`to`, `cc`, `bcc`	array or string	Up to 25 each. All optional.
`subject`	string	Up to 200 characters.
`text`	string	Plain-text body, up to 100,000 characters.
`html`	string	HTML body, up to 400,000 characters.

201 Created, returning the draft including its id.

Every field is optional, including the recipients. A draft is unfinished by definition — that is what makes it a draft. Refusing to save one because the address is half-typed is how a drafts feature loses somebody’s work.Validation happens when the message is sent, not while it is being written.

Read one

GET https://app.ruber.me/api/v1/drafts/{id}

The same fields as the list, plus text and html.

Replace one

PATCH https://app.ruber.me/api/v1/drafts/{id}

Takes the same body as create.

This replaces the whole draft; it does not merge. A field you leave out is cleared, not kept.A merging PATCH would need some way to say “clear the subject”, and the obvious encoding — omit the field — is already how you say “leave it alone”. Send the draft as you want it to be.

Delete one

DELETE https://app.ruber.me/api/v1/drafts/{id}

{ "deleted": true, "id": "61b76e1d-bd4b-4729-aae9-b3fdc8af1caa" }

Gone, along with its stored body. There is no Trash for drafts.

Sending a draft

There is no “send this draft” call. Read it, then POST /v1/messages with its contents and a from, and delete the draft once the send succeeds. That is deliberate rather than missing. A draft has no sender — from is chosen when the message goes, and a send endpoint that inherited it from a draft would be a second, quieter way to decide which address your mail leaves under.

Errors

Code	HTTP	Cause
`invalid_request`	`400`	Malformed JSON, a bad address, or a field over its limit.
`unauthorized`	`401`	Missing, malformed, unknown or revoked key.
`forbidden`	`403`	The key lacks `drafts:read` or `drafts:write`.
`not_found`	`404`	No organization draft with that id. A personal draft answers the same way.
`rate_limited`	`429`	Over 600 requests in a minute.
`internal_error`	`500`	Storage was unreachable. Nothing was saved.

See Errors for the full response shape.

Start here

Using Ruber

API

Mail clients

List drafts

Create a draft

Read one

Replace one

Delete one

Sending a draft

Errors

​List drafts

​Create a draft

​Read one

​Replace one

​Delete one

​Sending a draft

​Errors

List drafts

Create a draft

Read one

Replace one

Delete one

Sending a draft

Errors