---
title: "API Reference"
account: paid
slug: paid-2
---

# API Reference

Billing: manage customers, orders, plans, usage signals and cost traces for AI agents

- Operations: 59
- Versions: 1 (latest `dbdf4a60ed27`)
- Source: https://docs.paid.ai/openapi/api-reference-2.yaml
- OpenAPI document: https://skmtc.dev/paid/apis/paid-2/revisions/dbdf4a60ed27?raw

## Operations

59 in total, by tag:

- customers (15)
- agents (8)
- products (8)
- contacts (6)
- orders (9)
- orders > lines (1)
- plans (8)
- usage (3)
- traces (1)

Every operation, with a link to its markdown: https://skmtc.dev/paid/apis/paid-2/llms.txt