PayPal Flexible Payment Portal & Subscription Setup

@ukroficer

✔️ Hello, You need the PayPal Subscriptions REST flow for WordPress with no plugin checkout: Sandbox + Live app setup, OAuth, webhooks for pause/resume/cancel/plan switch, and sample curl/PHP/JS calls you can reuse. We would first configure the app in your PayPal Developer account, map the required events, and test each action in Sandbox before promoting to Live. - Build a custom WordPress integration around PayPal REST API. - Use WP REST API and ACF only if admin settings fields are needed. - Avoid PayPal subscription plugins and Elementor for clean API control. - Add webhook validation, secure secret storage, updates, and CWV-safe loading. We are Webcapitan, a Ukraine studio with 8+ years, Preferred Freelancer, and 5★ across 580+ reviews. Is the WordPress site already live on hosting, and is there an existing theme in place? Do you want a simple WP admin page for plans/settings, or only code samples and docs? Please let me know your thoughts. Looking forward, Roman

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in API Development, PHP, JavaScript, REST API, PayPal API, HTML, Payment Gateway Integration, PayPal, WordPress As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@rajat07me

You already have the PayPal developer account in place, so the real job here is making the subscription flow reliable end to end: product/plan creation, subscription actions, and webhook events that actually map cleanly into WordPress later. The biggest risk in builds like this is not the API calls themselves but inconsistent webhook handling and gaps between Sandbox and Live, so I’d structure it around tested action-by-action flows with a small, reusable listener example and clean documentation. I’ve worked on payment and subscription integrations where the handover mattered just as much as the code, because the client needed something they could later plug into their own site logic without being locked into a plugin. For this PayPal setup, I can keep the app under your developer account, configure both environments, and provide sample curl/PHP/JS requests for create, pause, resume, cancel, switch-plan, and billing-cycle extension. I can also include a concise endpoint/headers reference so your WordPress-side implementation is easier. - Do you already have the subscription products/plans defined conceptually, or should I create a sample structure for monthly/annual tiers? - For the webhook listener example, do you want plain PHP only, or a WordPress-friendly version as well?

@WebChapters

Hi, hope you're doing well! I'd love to help you build this PayPal Subscriptions integration cleanly via REST API. Here's my approach: Sandbox to Live setup covering Products, Billing Plans, and Subscriptions under your account. Secure OAuth with correct scopes, plus webhooks tested for all key events. Sample PHP/JS/cURL calls for every action. Clear handover docs so you can drop it into WordPress confidently. A few questions to help me get started: 1. Do you already have specific subscription plans in mind, or do you need help structuring the billing tiers? 2. Will your WordPress site handle the webhook listener itself, or do you need a standalone endpoint set up? 3. Is there a deadline you're working toward for the Live launch? Looking forward to getting this running smoothly for you! Azeem Amin

@webbookstudio

Hi there, We understand you need a custom PayPal Subscriptions flow built through the REST API for your WordPress site, utilizing your existing verified PayPal developer account. Our team has experience with PayPal API integrations, including a similar project for a British online store where we integrated Shopify with ERP systems and handled payment gateway setups. We're confident in our ability to deliver a fully configured PayPal app, secure OAuth flow, webhooks, and sample API calls for subscription management. Can you confirm if you have any specific requirements for handling errors or edge cases during the subscription flow? Feel free to message us to discuss the details! — Webbook Studio

@a4logic

Hello, Having worked in the tech space for over 15 years, I've amassed significant knowledge and expertise in all aspects of web development, from WordPress to Laravel, Python to Node.js, and REST APIs to Third-Party Integrations. All this aligns perfectly with your project requirements for your PayPal Flexible Payment Portal & Subscription Setup. I understand the importance of clean code and efficient integration; hence, my work is always focused on delivering maximum scalability, security, and user-friendliness. Over time, I have developed core WordPress skills as well as a deep understanding of Shopify Development - both of which will be invaluable in building your subscription flow via the PayPal REST API. In terms of managing projects effectively, my philosophy is quality, clear communication and client satisfaction. Alongside crafting a solution that will meet all your specific needs for PayPal Subscriptions flow on your WordPress site - from setting up the Sandbox/Live environment to creating comprehensive API documentation - I will also remain committed to providing you with long-term support even after project completion. With me on board, you can expect not just a contractor but a partner who is genuinely invested in your success! End-user experience is one I prioritize greatly - so do PayPal, their products are known for being highly robust and reliable. Rest assured,I will follow suit by executing rigorous tests using Thanks!

@inventivedesigne

Hi, Building this as pure REST API work instead of leaning on a plugin gives you way more control, especially once you get into edge cases like plan switching mid-cycle or extending a billing period, things off-the-shelf plugins tend to handle poorly or not at all. I'd start by setting up the Sandbox app under your PayPal Developer account (keeping it there as you specified), then build out Products and Billing Plans through the REST API before touching Subscriptions itself. Getting the OAuth flow right with the correct scopes early on saves headaches later, especially since Live credentials behave a bit differently around token expiry than Sandbox does. For webhooks, I'd set up listener endpoints covering each event you listed, activation, payment, pause, resume, cancel, plan change, and cycle extension, and test each one by actually triggering the corresponding action so you can watch the webhook fire in real time rather than just trusting the docs. A couple of quick questions: 1. Is your WordPress site using a custom theme/plugin setup, or should I assume a standard child-theme structure for the sample integration points? 2. Do you already have Billing Plan pricing tiers defined, or is that something we're finalizing together? Happy to hop on a quick call to walk through the verification step once we're at that stage. Hafiz S

@extreamcode

Hi there, Your PayPal subscription flow needs more than API calls , it needs a clean, reusable setup that won’t break when moved into WordPress. I’ve built REST-based payment integrations with PayPal, OAuth, webhooks, and subscription lifecycle handling, and I can wire this so your Sandbox and Live environments behave the same way. I’ll configure the Products, Billing Plans, and Subscriptions flow under your PayPal developer account, set up secure OAuth scopes, test the key webhook events, and provide curl, PHP, and JS examples for create/update/pause/resume/cancel/plan switching. I’ll also document the exact endpoints, headers, and stored parameters so you can recreate it inside your WordPress dashboard without guesswork. I’ve shared an initial estimate based on your description, and once we go over a few technical or functional details, I’ll confirm the exact cost and delivery schedule. Could you share whether you want the webhook listener written as plain PHP or WordPress-ready code, and do you need plan switching to preserve billing anchors or restart cycles? Also, should the integration support one-time setup fees alongside recurring plans? Looking forward to your reply so we can finalize the exact plan. Best regards, Asad

@raphaelokekeze

Setting up the entire PayPal Subscriptions flow through the REST API without relying on off-the-shelf plugins is something I can handle cleanly for your WordPress site. I have extensive experience working directly with PHP, JavaScript, and custom API integrations, allowing me to build this from scratch rather than forcing a pre-made tool to fit. I will configure your PayPal app in both Sandbox and Live under your own developer account, establish the secure OAuth flow, and set up all required webhooks for events like activation, payment, pause, resume, cancel, plan change, and payment-cycle extension. You will receive clean sample PHP, JS, and cURL calls along with thorough hand-over documentation detailing endpoints, headers, and the webhook listener so you can easily drop it straight into your site. Everything will be rigorously tested in the PayPal Sandbox before promoting to Production and running the final verification call together. My bid is $250 with a 1-day delivery. Let's get started.

@ost

With over a decade of experience as a full-stack web developer, I have specialized in WordPress and API development – two crucial components for your project. I've extensively worked with PayPal REST API and Subscribers, making me well-versed in setting up entire flows for products, billing plans, and subscriptions that align with your requirements. My proficiency in PHP ensures that your functionalities will be integrated seamlessly into your WordPress site for enhanced user experience. My expertise extends beyond coding. I understand the importance of robust documentation and smooth project handover to ensure you can take charge and hit the ground running. Additionally, I assure you rigorous testing not only within PayPal Sandbox but also across the production environment for uninterrupted service. Partnering with me would mean gaining a trustworthy and skilled professional who will diligently create your PayPal app, develop secure OAuth flow, configure webhooks, create sample API calls, and provide clear instructions to facilitate your integration process. You can expect timely delivery, comprehensive support, and an end-to-end implementation that promises error-free subscription management on your platform.

@asifalimzd

Hi, I can build the complete PayPal Subscriptions REST API flow for your WordPress site without using an off-the-shelf plugin. I’ll configure Sandbox/Live apps under your PayPal Developer account, implement secure OAuth, Products/Plans/Subscriptions, and test the required webhooks for activation, payments, pause, resume, cancellation, plan changes, and billing extensions. I’ll also provide clean PHP/JS/cURL examples, a webhook listener, required data storage details, and concise handover documentation so you can integrate it into WordPress confidently. Can you provide access to the PayPal Sandbox app so I can start the integration and testing? Kindly send me a message to discuss more or directly award me. Thank you!

@starttechno

I’ll build the PayPal Subscriptions flow around your existing Developer account, keeping the app ownership and credentials under your control. I’ll configure Products and Billing Plans in both Sandbox and Live, implement secure server-side OAuth token handling, and provide reusable PHP, JavaScript, and cURL examples for creating, pausing, resuming, cancelling, revising, and switching subscriptions. I’ll create and verify webhook handling for activation, payments, pause/resume, cancellation, plan changes, and billing-cycle extension, including signature validation and idempotent event processing so duplicate notifications cannot create incorrect WordPress records. The handover will document endpoints, headers, required stored IDs, environment configuration, and a listener example that can be placed into your WordPress integration without relying on a plugin. Testing will begin in Sandbox with each requested action and its corresponding webhook. After you verify the results, I’ll repeat the configuration and end-to-end checks in Live and guide you through the final verification request. Where PayPal applies a specific limitation to billing-cycle extension or plan revision, I’ll implement the supported REST operation and document the exact behavior rather than hiding it. Do you already have a staging WordPress site where the webhook listener can be tested? Muhammad Saad

@ranjika08

The important part of your brief is that this must stay clean and reusable inside WordPress later, without depending on a plugin layer. For PayPal subscriptions, that usually means getting three things right from the start: app setup in both environments, secure OAuth handling, and webhook testing for every subscription state change so nothing breaks when you move from Sandbox to Live. I’ve handled API-based payment workflows where clients needed sample requests they could actually adapt, not vague docs copied from the provider. In your case, I’d build and verify the full subscription action set, then hand over working examples for create, update, pause, resume, cancel, plan switch, and payment-cycle extension, along with the webhook listener structure and the fields worth storing on the WordPress side. That way, you’re not just getting a one-off setup; you’re getting a repeatable flow you can rebuild and maintain under your own PayPal account. - Do you want the sample calls delivered as separate curl, PHP, and JS examples for each action, or combined into one compact reference set? - Have you already decided where the webhook listener will live inside WordPress, or should I outline the cleanest placement for that too?

@ajharul

For your PayPal subscription integration project, I will develop the REST API implementation to handle your product billing plans and webhook events. I will provide the documented sample calls and setup guide required to manage this flow directly within your WordPress environment. Let's discuss... - Ajhar

@crtvecode

I see you're looking for a custom PayPal Subscriptions setup using the REST API for your WordPress site. I can help you build those entire flow without relying on any off-the-shelf plugins. And my approach will include setting up a fully configured PayPal app in both Sandbox and Live environments, making sure the OAuth flow is secure, and creating webhooks for all key events you mentioned. I can go ahead and complete this work first, allowing you to test everything before you award the project or create a milestone, you’ll have the opportunity to verify that all subscription actions work perfectly on your end, with no obligation until you’re satisfied. I’m ready to start immediately for $62, let’s get this done right. Rajavel PayPal REST API and WordPress Specialist

@WebTechDesignBG

Hello, I see that you need a custom PayPal Subscriptions flow built through the REST API for your WordPress site, using your verified PayPal developer account. My approach would start with setting up a fully configured PayPal app in both Sandbox and Live environments. I’d ensure the OAuth flow is secure and create webhooks for all the key events you mentioned. My 7+ years of experience with PayPal API and payment integrations means I can provide you with clear sample calls and thorough documentation for seamless integration into your site. You can check my work at https://pixoriq.com. I'm eager to help you ensure everything works perfectly from Sandbox testing to Live deployment. One question I have is, are there any specific billing plans or product types you want to focus on when setting this up? Best regards, Ivan Mandinski

@C0RETECHIES

Hi, You need a native, plugin-free PayPal Subscriptions integration for WordPress. The goal is a direct REST API bridge handling the complete billing lifecycle, managing subscriber states, and handling upgrades, validated via real-time webhooks. Technical approach: - Configure PayPal Developer App with Subscription scopes. - Implement secure OAuth 2.0 flow for token generation. - Develop PHP/cURL script templates for all lifecycle endpoints. - Set up a PHP webhook listener to parse POST requests and verify signatures. Core modules: - OAuth Setup: Client ID/Secret binding under your account. - Lifecycle Controllers: API calls for upgrade, pause, resume, cancel, and extensions. - Webhook Pipeline: Event-driven listener capturing billing mutations. Relevant systems: - Bison360 (Stripe/Square Custom API Integrations) - TDTY (Event-driven API & Webhook management) Implementation strategy: I will build entirely in your Sandbox, generating the exact cURL/PHP scripts needed. Once we validate that every state change fires the correct webhook, I will package the endpoints into a handover document and guide you through the Live promotion. 1. For the webhook listener, do you prefer a standalone PHP script or a basic WordPress REST API endpoint structure? 2. Do you need custom parameters (like user IDs) passed through the payload to return in the webhooks? 3. Do your plans involve trial periods or setup fees requiring specific JSON payload structures? Regards, Rohit

@ihtsham3

I will configure and build your custom PayPal Subscriptions REST API integration directly under your PayPal Developer account, providing clean, dependency-free PHP and JavaScript code snippets along with a secure webhook listener tailored for your WordPress environment. Best Regards, Ihtsham

@Joya1996

You need a PayPal subscription flow that is fully testable before it touches production, and that is exactly where many integrations fall apart: Sandbox works partially, but plan switching or webhook states fail later in Live. I’d handle this by building the flow around verifiable actions first, then matching each action to its webhook event so your acceptance criteria can be checked one by one. This is a good fit for custom API work because your scope is specific and you already know you do not want an off-the-shelf plugin. I can configure the PayPal app under your own developer account, set up Products, Billing Plans, and Subscriptions, secure the OAuth side, and provide clean PHP/JS/curl examples plus a concise setup guide you can reuse inside WordPress. I’d also make the handover practical, not bloated, so you can recreate the setup without digging through PayPal docs again. - Will this be a single subscription offering first, or do you need multiple plans ready from day one? - Do you want webhook testing evidence captured in a short checklist/screenshots as part of delivery?