BILL

aid: bill
name: BILL
description: >-
  BILL (formerly Bill.com) is a cloud-based financial operations platform for
  small and midsize businesses that automates accounts payable, accounts
  receivable, and spend & expense management. The BILL API Platform exposes
  these workflows through the BILL v3 REST API and embeddable BILL Elements
  UI components, enabling partners and ERPs to integrate bill capture,
  approvals, payments, and real-time event notifications via webhooks. The
  API uses session-based authentication with API keys and developer keys
  against production and sandbox gateways.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
  - Accounts Payable
  - Accounts Receivable
  - Spend Management
  - Expense Management
  - Payments
  - Bill Pay
  - Financial Operations
  - Fintech
url: >-
  https://raw.githubusercontent.com/api-evangelist/bill/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-30'
specificationVersion: '0.19'
apis:
  - aid: bill:v3-api
    name: BILL v3 API
    description: >-
      REST API providing full-breadth access to BILL's Accounts Payable,
      Accounts Receivable, and Spend & Expense capabilities including
      bills, invoices, vendors, customers, payments, approvals, and
      webhook event notifications. Production calls are made to
      https://gateway.prod.bill.com/connect/v3 with sandbox at
      https://gateway.stage.bill.com/connect/v3.
    humanURL: https://developer.bill.com/docs/bill-v3-api-get-started
    baseURL: https://gateway.prod.bill.com/connect/v3
    tags:
      - Accounts Payable
      - Accounts Receivable
      - Spend Management
      - Payments
      - Webhooks
    properties:
      - type: Documentation
        url: https://developer.bill.com/docs/home
      - type: APIReference
        url: https://developer.bill.com/reference
      - type: GettingStarted
        url: https://developer.bill.com/docs/bill-v3-api-get-started
      - type: Postman
        url: https://www.postman.com/bill-api-platform/bill-api-platform-workspace/overview
      - type: AsyncAPI
        url: https://raw.githubusercontent.com/api-evangelist/bill/refs/heads/main/asyncapi/bill-webhooks-asyncapi.yml
  - aid: bill:elements
    name: BILL Elements
    description: >-
      Low-code, embeddable UI components that surface the BILL Accounts
      Payable workflow inside partner applications with minimal
      development effort.
    humanURL: https://developer.bill.com/docs/home
    tags:
      - Embeddable UI
      - Accounts Payable
    properties:
      - type: Documentation
        url: https://developer.bill.com/docs/home

common:
  - type: Website
    url: https://www.bill.com
  - type: Developer Portal
    url: https://developer.bill.com
  - type: Documentation
    url: https://developer.bill.com/docs/home
  - type: APIReference
    url: https://developer.bill.com/reference
  - type: Pricing
    url: https://www.bill.com/pricing
  - type: SignUp
    url: https://app.bill.com/Signup
  - type: Support
    url: https://developersupport.bill.com
  - type: LinkedIn
    url: https://www.linkedin.com/company/bill-com

  - type: LLMsTxt
    url: https://developer.bill.com/llms.txt
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com