--- title: PayPal API Integration on Truto slug: paypal category: Payment Gateway canonical: "https://truto.one/integrations/detail/paypal/" --- # PayPal API Integration on Truto **Category:** Payment Gateway **Status:** Generally available ## Unified APIs ### Unified Subscription Management API - **Invoices** — The invoice represents an invoice in Subscription Management. - **Payments** — The payment represents a payment in Subscription Management. ## How it works 1. **Link your customer's PayPal 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 PayPal.** The Proxy API is a 1-to-1 mapping of the PayPal 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 - **Sync PayPal invoices into your billing or accounting platform** — SaaS companies building invoicing or accounting tools can pull and push invoice data between their platform and their customers' PayPal accounts, giving end-users a single pane of glass for all billing activity without manual data entry. - **Manage recurring subscriptions through PayPal's billing engine** — Subscription management platforms can use PayPal as a payment execution layer — creating billing plans, enrolling subscribers, and handling upgrades or cancellations — while keeping their own system as the source of truth for plan logic and pricing. - **Reconcile PayPal payments and fees in financial software** — ERP and bookkeeping tools can ingest PayPal transaction data, separating gross sales from processing fees and chargebacks, so their users get accurate, audit-ready ledger entries without exporting CSVs from PayPal. - **Offer one-click PayPal checkout from your commerce platform** — E-commerce builders and marketplace platforms can let their merchants accept PayPal payments natively, capturing orders and processing refunds directly from the platform's UI while PayPal handles PCI compliance and global payment methods. - **Automate creator and vendor payouts at scale** — Marketplace and creator-economy platforms can trigger mass disbursements to sellers or creators via PayPal, tracking payout status and surfacing failures — all without building custom payout infrastructure. ## What you can build - **Unified invoice creation and status tracking** — Let your users draft invoices in your app and automatically mirror them in PayPal, with real-time status updates (DRAFT → SENT → PAID → CANCELLED) synced back via webhooks. - **Embedded subscription lifecycle management** — Map your platform's pricing tiers to PayPal Billing Plans and let end-users enroll, upgrade, downgrade, or cancel subscriptions without leaving your product. - **Automated payment-to-ledger reconciliation** — Pull daily PayPal transactions — including gross amounts, net deposits, fees, and refunds — and auto-categorize them into your users' general ledger. - **One-click refund processing from your dashboard** — Surface captured PayPal payments in your UI and let users trigger full or partial refunds that execute directly against PayPal's Refund API. - **Bulk payout orchestration for marketplaces** — Enable marketplace operators to submit a single batch of email-based payouts to hundreds of vendors or creators, with per-recipient status tracking and failure alerts. - **Real-time payment event webhooks** — Listen for PayPal events like PAYMENT.CAPTURE.COMPLETED or BILLING.SUBSCRIPTION.ACTIVATED and instantly reflect state changes in your product's order or subscription records. ## FAQs ### What authentication method does PayPal use? PayPal's REST APIs use OAuth 2.0. Third-party integrations typically use the Authorization Code grant so end-users can connect their PayPal accounts without sharing credentials. Truto handles the OAuth flow, token storage, and automatic refresh. ### Are PayPal tools available out of the box in Truto? PayPal tools are built on request. Once you signal interest, Truto's team will scope and deliver the specific tools and data models you need, mapped to the Unified Subscription Management API (Invoices, Payments) or as proxy endpoints. ### What Unified API does PayPal map to? PayPal maps to Truto's Unified Subscription Management API, which covers Invoices and Payments. This lets you read and write invoice and payment data using a standardized schema that also works across other payment gateways. ### Does PayPal have rate limits I should be aware of? Yes. PayPal enforces rate limits that vary by endpoint and account tier. For example, the Transaction Search API has stricter throttling than the Orders API. Truto manages retry logic and backoff strategies so your integration degrades gracefully under load. ### Can I access PayPal subscription and billing plan data? Yes. PayPal exposes Billing Plans and Subscriptions via its REST API, including billing cycles, trial periods, pricing, and subscriber status (ACTIVE, SUSPENDED, CANCELLED). These can be mapped through Truto's Unified Subscription Management API. ### How does Truto handle pagination for PayPal list endpoints? PayPal uses cursor-based and offset-based pagination depending on the endpoint. Truto abstracts this away — you paginate using a consistent interface regardless of the underlying PayPal API behavior.