Introduction
Read your documents and get notified the moment one is opened, signed or declined.
The Signello API lets your own systems read documents and hear about what happens to them. Use it to text a customer the second they sign, push a closed deal into your CRM, or drop a message into a Slack or Teams channel.
It is a read API plus webhooks. You cannot create or send documents through it; that still happens in Signello.
Quickstart
Create a key and make your first call. About a minute.
Webhooks
We call you when something happens, so you never have to poll.
Conventions
Response envelope, pagination, rate limits and every error code.
API reference
Every endpoint, generated from the schemas the API validates with.
Base URL
https://www.signello.se/api/v1Every response has the same shape, either { "ok": true, "data": … } or
{ "ok": false, "error": "code" }. The machine-readable description lives at
/api/v1/openapi.json.
What you need
The API is part of Signello Max. Keys are created in the app under Settings → Integrations → API & Webhook. A key reads everything in one workspace and nothing outside it.
Language
These pages are in English, and so are field names, error codes, headers and every code sample, because that is what the API actually sends. The Signello app itself is available in Swedish and English.