Invoice Collection API for B2B Platforms

An invoice collection API for B2B platforms that need hosted invoice payment, reminders, delivery tracking, and manual settlement on one receivables record.

Flint invoices freeze customer-facing billing content, expose a stable public invoice link, and keep hosted payment inside the same invoice lifecycle.

The same invoice record supports reminders, delivery attempts, manual payments, reversals, and downloadable PDFs.

B2B collection stays attached to one receivables object instead of splitting billing, online payment, and offline settlement across several tools.

Workflow Outline

Your product needs formal invoice collection with hosted payment, reminders, and delivery tracking on the same receivables record.

You need both online card collection and manual settlement such as checks or wires on the same invoice lifecycle.

B2B collection and receivables operations matter more than a fast generic payment request.

What This Solves

Teams searching invoice collection APIs usually need more than invoice creation. They need hosted payment, reminders, delivery history, and manual settlement tracked on the same receivables record.

Step 1

Post-service B2B billing

Send itemized invoices after work is complete, then let buyers pay through a hosted invoice link without losing the receivables record.

Step 2

Reminder-driven collection

Track send attempts, reminder history, and outstanding balance on the same invoice instead of scattering follow-up across email tools.

Step 3

Mixed online and offline settlement

Accept card payment online while still recording checks, wires, or other manual settlements against the same invoice.

Step 4

B2B support and auditability

Give finance and support teams one invoice record containing delivery history, payment events, and settlement actions.

Why Flint Fits

Flint invoices freeze customer-facing billing content, expose a stable public invoice link, and keep hosted payment inside the same invoice lifecycle.

The same invoice record supports reminders, delivery attempts, manual payments, reversals, and downloadable PDFs.

B2B collection stays attached to one receivables object instead of splitting billing, online payment, and offline settlement across several tools.

Choose Another Path When

Use payment links when collection speed matters more than invoice structure, reminders, and receivables tracking.

Use hosted checkout when the payment should start from an order or quote instead of an invoice-led billing record.

Use subscriptions when the main workflow is recurring lifecycle rather than invoice-by-invoice collection.

Implementation References

Reference the exact flow surfaces

Invoices API

Draft, send, collect, remind, and settle invoices through the public HTTP API.

Invoicing Guide

Review the invoice-led collection flow, reminders, hosted payment, and manual settlement model.

Webhooks API

Use invoice events for sent, paid, delivery, reminder, and manual-payment workflows.

Explore invoice-led collection and adjacent hosted payment models

These pages help separate true B2B receivables workflows from faster but less structured collection primitives.

Invoice API with Hosted Payments

Use this when the question is the invoice API surface itself, not the broader B2B collection workflow.

Sandbox Environments for Payment APIs

Useful when you need to test reminders, hosted invoice payment, and manual settlement in isolated environments.

Payment Links API for Platforms

Use payment links when speed matters more than formal receivables tracking and B2B billing structure.

Next Step

Ship the workflow before polishing the edge cases

Start with the underlying Flint flow, then layer your product-specific UX and recovery paths on top.