Contracts
Get a contract
Retrieve a single contract by its external ID.
AuthorizationBearer <token>
API key as Bearer token: Authorization: Bearer luc_live_...
In: header
Path Parameters
ext_id*string
The external ID of the contract.
Response Body
application/json
application/json
application/json
curl -X GET "https://api.lucius.finance/v1/billing/contracts/acme-corp-2026"{
"object": "contract",
"id": "acme-corp-2026",
"customer_name": "Acme Corp",
"status": "active",
"start_date": "2026-01-01",
"end_date": "2027-01-01",
"currency": "USD",
"metrics": [
"revenue_amount_invoiced"
]
}{
"error": "Missing API key"
}{
"error": "Not found"
}