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POST
Create Many Bills
Upserts on the external key like the singular endpoint; the batch is all-or-nothing. Bodies use the { "inputs": [...] } wrapper. See Syncing foundation entities.

Authorizations

Authorization
string
header
required

Your API key, sent in the Authorization header: Authorization: YOUR_API_KEY. A Bearer prefix is also accepted (Authorization: Bearer YOUR_API_KEY). Keys are created in the Upwell dashboard (Account → API keys) and are scoped to one organization.

Body

application/json

Query parameters can also be provided in the request body as a JSON object

inputs
BillsInsertInput · object[]

Response

Responses for POST /api/rest/bulk-bills

createBills
BillsMutationResponse · object | null

response of any mutation on the table "bills"