Build with LUCA
Automate payment reconciliation and pull management-account reports straight from your own tools with LUCA’s token-authenticated REST API.
Guides
Task-based walkthroughs — start here if you're integrating for the first time.
Getting started
Create an API token, authenticate your first request, and understand the sandbox vs the live base URL.
Payment reconciliation
Match a bank payment to a customer's open invoices and record the receipt — the full four-call flow.
Journal Entry Import
Generate LUCA-ready journal-entry spreadsheets with your AI assistant — the sheet format spec and a ready-to-paste prompt.
NewAI Bill Import
Upload supplier bill PDFs, let Luca AI read them, then review and post the drafts you approve. Nothing hits your ledger until you say so.
Invoice Automation
Raise an invoice, email it, correct it, and credit it — the whole lifecycle, idempotent and safe to retry.
API Reference
Every endpoint, organised by resource, with copy-paste examples and a mock Try-It sandbox.
API Reference
The complete LUCA External API v1 — every endpoint, parameter, and response, with copy-paste examples in curl, JavaScript, Python, and PHP.
Try-It sandbox
Every endpoint on this portal runs against a mock sandbox that returns the documented example responses — no real data, no side effects.
Postman collection
Every endpoint with worked example responses, ready to import into Postman. Regenerated with the reference, so it never lags behind the API. The OpenAPI 3 document is on the same menu.
Coming soonMCP Server
Connect LUCA to Claude and other AI assistants through the Model Context Protocol.
Make your first call
The sandbox accepts any bearer token, so you can explore before creating a real one.
# Search customers on the mock sandbox — returns the documented example response
curl "https://developer.luca.pro/api/v1/customers?search=Acme" \
-H "Authorization: Bearer sandbox-token"
Ready for live data? Create a token in LUCA under Settings → API Tokens
and point the same request at https://api.luca.pro.