API v1.0

Nucleus One API Documentation

Build powerful integrations with our comprehensive REST API. Full documentation, code examples, and interactive testing.

RESTful

Modern REST API design

99.9%

API uptime SLA

100ms

Average response time

v1.0

Stable API version

Quick Start

Get up and running in minutes

Base URL: https://client-api.nucleus.one/api/v1
HTTPS Only

Full API Reference Available

The complete API documentation with all endpoints, detailed schemas, and interactive testing is available at:

https://client-api.nucleus.one/api/v1/docs
GET
/api/v1/organizations/{organization-id}/projects
Auth Required

List all projects in an organization

DELETE
/api/v1/organizations/{organization-id}/members
Auth Required

Remove members from organization

DELETE
/api/v1/organizations/{organization-id}/dashboard-widgets
Auth Required

Delete dashboard widgets

DELETE
/api/v1/organizations/{organization-id}/projects
Auth Required

Delete projects from organization

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/members
Auth Required

Remove project members

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/groups
Auth Required

Delete project groups

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/documents
Auth Required

List all documents in a project

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/document-content-packages/{document-id}
Auth Required

Retrieve document content package

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/counts/documents
Auth Required

Count active documents in project

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/counts/pages
Auth Required

Count total pages in all documents

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/document-folders
Auth Required

Delete document folders

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/document-subscriptions
Auth Required

Unsubscribe from document notifications

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/documents/{document-id}/signature-forms
Auth Required

Get document signature forms

GET
/api/v1/user/organizations/{organization-id}/projects/{project-id}/tasks
Auth Required

List user tasks in project

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/task-states
Auth Required

Delete task states

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/task-milestones
Auth Required

Delete task milestones

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/task-subscriptions
Auth Required

Unsubscribe from task notifications

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/assets
Auth Required

List all assets in project

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/assets/{asset-id}/asset-items
Auth Required

List asset items for an asset

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/assets/{asset-id}/asset-items
Auth Required

Unlink asset items

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/form-templates
Auth Required

List form templates

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/form-templates
Auth Required

Delete form templates

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/form-templates/{form-template-id}/fields
Auth Required

List form template fields

GET
/api/v1/organizations/{organization-id}/projects/{project-id}/approvals
Auth Required

List project approvals

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/processes
Auth Required

Delete processes

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/processes/{process-id}/process-elements
Auth Required

Delete process workflow elements

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/fields
Auth Required

Delete custom field definitions

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/tags
Auth Required

Delete tags

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/folder-hierarchies
Auth Required

Delete folder hierarchy structures

DELETE
/api/v1/organizations/{organization-id}/projects/{project-id}/search-templates
Auth Required

Delete saved search templates

DELETE
/api/v1/user/api-keys
Auth Required

Revoke user API keys

Developer Resources

Everything you need to build with Nucleus One

SDKs & Libraries

Official SDKs for popular languages and frameworks

JavaScript/TypeScript
Python
PHP
Ruby
Java
.NET
View all SDKs
Webhooks

Real-time notifications for document events

  • Document uploaded
  • Workflow completed
  • User actions
Configure webhooks
API Status

Real-time API health and performance metrics

API Status
Operational
Uptime (30d)99.99%
Avg Response98ms
View status page

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