--- title: Bill API Integration on Truto slug: bill category: Default canonical: "https://truto.one/integrations/detail/bill/" --- # Bill API Integration on Truto **Category:** Default **Status:** Generally available ## How it works 1. **Link your customer's Bill account.** Use Truto's frontend SDK; we handle every OAuth and API key flow so you don't need to create the OAuth app. 2. **Authentication is automatic.** Truto refreshes tokens, stores credentials securely, and injects them into every API request. 3. **Call Truto's API to reach Bill.** The Proxy API is a 1-to-1 mapping of the Bill API. 4. **Get a unified response format.** Every response uses a single shape, with cursor-based pagination and data in the `result` field. ## Use cases - **Automate vendor payouts from your vertical SaaS platform** — If your platform manages workflows that end in paying vendors, contractors, or suppliers, integrating with Bill lets your users push approved payables directly into their Bill account for payment execution — no manual re-entry required. - **Pull real-time AP data for cash flow forecasting** — FP&A and treasury tools need visibility into upcoming and outstanding payables. By reading Bills and Payments from your users' Bill accounts, you can power accurate cash burn forecasts and liquidity dashboards without asking users to export CSVs. - **Sync procurement approvals into Bill for payment execution** — Procurement and spend intake platforms handle the request-and-approve workflow, but the actual money movement happens in Bill. Integrating lets your users seamlessly hand off fully coded bills to their finance team for final payment release. - **Stage bills automatically from industry-specific workflows** — Practice management, construction, or property management SaaS platforms generate payable events as part of their core workflow. Pushing these as pre-coded Bills into your users' Bill accounts eliminates double-entry and accelerates payment cycles. - **Issue invoices and track receivables through Bill's AR capabilities** — Subscription billing or usage-based billing platforms can create customer invoices in Bill's Accounts Receivable module, giving end users a low-friction ACH payment option and keeping AR data in sync with their general ledger. ## What you can build - **One-click vendor creation and network lookup** — Automatically create vendors in your users' Bill accounts and leverage the Bill Network to skip manual bank detail collection when the vendor already exists. - **Automated bill staging with document attachment** — Push fully coded bill line items along with the original invoice PDF into Bill so finance teams can review and approve without context-switching. - **Payment status webhook listener** — Subscribe to Bill's payment status webhooks to reflect real-time statuses like Scheduled, Cleared, or Failed directly in your product's UI. - **Accounts payable sync for cash flow dashboards** — Pull unpaid, scheduled, and historical bills and payments from Bill to build real-time cash position and burn rate visualizations. - **Virtual card provisioning and budget controls** — Use Bill's Spend & Expense APIs to generate virtual cards for employees and enforce per-department or per-project spending limits from within your platform. - **Embedded Bill workflows via Bill Elements** — Drop Bill's embeddable UI components into your product so users can complete approval and payment flows without leaving your application. ## FAQs ### What authentication method does the Bill API use? Bill's v3 API uses OAuth 2.0 for authentication. Truto handles the full OAuth flow, token refresh, and credential storage so your team doesn't need to manage auth lifecycle per connected account. ### Is the Bill integration available as a prebuilt Unified API on Truto? Bill is not yet mapped to a Truto Unified API. It is built on request — contact Truto to scope the integration, and the team will build and maintain the connector tailored to your use case. ### Does Bill support webhooks for real-time data updates? Yes. Bill's v3 API supports webhooks for key events, most notably payment status changes (Scheduled, Cleared, Voided, Failed). This lets your application react in real time rather than polling. ### What are the core API objects available in Bill's v3 API? The primary objects include Vendors, Bills, Payments, Documents, Customers, Invoices (AR), and Spend & Expense resources like virtual cards and budgets. These cover both AP and AR workflows. ### Are there rate limits on the Bill API? Yes, Bill enforces rate limits on its v3 API. Truto manages request throttling, pagination, and retries on your behalf to ensure your integration stays within limits without dropped requests. ### Can I attach invoice documents when creating a Bill via the API? Yes. Bill's v3 API has a dedicated documents endpoint that lets you upload PDFs or images and associate them with a Bill object, so finance teams see the source invoice alongside the coded payable.