NiceData API
API Reference
Use the NiceData API to manage projects, upload documents, receive processing events, and monitor usage from your own systems. Document processing is asynchronous: create a document, then use webhooks or polling to know when extracted data is ready.
https://api.nicedata.ai/v1
API basics
Authentication, rate limits, pagination, and error handling for the public NiceData API.
Object reference
Field-by-field reference for project, document, webhook, webhook event, and usage objects.
Projects API
Create, list, retrieve, update, and delete projects programmatically.
Documents API
Upload files, submit email content, retrieve extracted data, and delete document records.
Webhooks API
Manage project webhook endpoints and understand webhook payload structure and delivery behavior.
Usage API
Retrieve billing-period usage, remaining pages, and current plan limits.
Integration guides
Webhook signature verification, upload-and-poll examples, and API key management guidance.