Lumin API Reference - Lumin Developer Docs

The Lumin REST API exposes document workflows as JSON endpoints under https://api.luminpdf.com/v1. Send signature requests, fill templates, generate agreements, and manage workspace resources from your backend. Start here: Quickstart · Authentication guide · Changelog

Authentication

Every request must include credentials. Most endpoints accept either method.

API key
Bearer token (OAuth 2.0)

Pass your key in the Authorization header:

Authorization: API-key <your-key>

Or send it as X-API-Key: <your-key>.


Security scheme	`apiKey`
Header	`X-API-Key`

Best for server-to-server integrations and backend jobs. See API Keys.

Pass an access token in the Authorization header:

Authorization: Bearer <access-token>


Security scheme	`http` (bearer)
Flow	Authorization code

Scopes control what each token can access — for example sign:requests for signature requests or templates for template operations. See OAuth 2.0.

Support

API support: [email protected]
Help center: help.luminpdf.com
Terms of use: luminpdf.com/terms-of-use

​Authentication

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Authentication

Support