Errors

insufficient_scope

403 Insufficient scope. The key doesn’t carry the scope the endpoint needs.

Open in Claude Open in ChatGPT .md

Status	Code	Retry?
403 Insufficient scope	`insufficient_scope`	After fixing it

What it means

The key doesn’t carry the scope the endpoint needs. Each endpoint’s reference names its scope.

Common causes

A read-only key was used to send a text.
A key made for sending was used to manage webhooks.

What to do

Make a key with the scope named in the message.

Can I retry it?

Only after you fix what the message names. Until then the same request gets the same answer.

What the answer looks like

Response403

{
  "error": {
    "code": "insufficient_scope",
    "message": "This key doesn’t have the `messages:send` scope.",
    "hint": "Make a key with the scope named in the message.",
    "doc_url": "https://usebluebot.com/docs/errors/insufficient_scope",
    "request_id": "req_1Hq2LxW9cVbN3mKpRtYs0a"
  }
}

Branch on code, which never changes. message and hint are written for people and may be reworded. Quote request_id when you write to support.

Errors: the envelope and every code
Idempotency: retrying without sending twice
Limits: every cap and what happens when you reach it