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I use Stripe Checkout links to sell monthly subscriptions and I run my AI video service through the Runway ML API. What I need is a small, secure webhook that listens to Stripe events, recognises the subscription tier a customer just paid for, and immediately calls the Runway ML REST endpoint to top up that customer’s usage. The flow should handle multiple subscription tiers (Basic, Pro, etc.), mapping each tier to a different credit amount in Runway ML. On a successful payment—[login to view URL] or [login to view URL]—the webhook must: • validate the Stripe signature • read the product / price ID to identify the tier • post the correct credit to Runway ML via its REST API • log the action to prevent double-crediting and for later auditing • return a 200 response so Stripe marks the event delivered THIS IS ALL I AM ASKING FOR DO NOT TRY TO UPSELL ON OTHER SERVICESES YOU OFFER SO YOU CAN CHARGE ME EXTRA, OR I WILL TERMINATE COMMUNICATION WITH YOU, THANK YOU. Please could do a test payment with a screen recording or screenshot to show me its completed.
Project ID: 40432569
166 proposals
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Active 5 days ago
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166 freelancers are bidding on average £241 GBP for this job

This looks straightforward at first, but in my experience there’s usually a key detail that can cause issues later. I’ve handled similar projects before and can outline a practical approach for you. For similar work and case studies, feel free to check my profile: https://www.freelancer.com/u/Microlent Let me know if you I'd like me to walk you through the plan. – Rajesh Rolen
£135 GBP in 7 days
9.5
9.5

Hi, I can create a webhook that listens for Stripe events and updates usage based on the subscription in place. To ensure a seamless integration, I’ll validate the Stripe signature, accurately read the product/price ID, and post updates to Runway ML’s REST API while logging actions to avoid double-crediting. Plus, I’ll make sure to return a 200 response to confirm successful processing. I will perform a test payment and document the entire process with a screen recording for your review. With 8+ years of experience in APIs and webhooks, I can get this done efficiently! Looking forward to your response. Best, Priyanka
£150 GBP in 2 days
8.4
8.4

Hi there, I understand your requirement clearly and can build exactly the webhook flow you described without adding unnecessary services or upsells. I can create a secure Stripe webhook that validates Stripe signatures, detects the subscription tier from the product/price ID, maps the correct credit amount, sends the credit request to the Runway ML API, logs every transaction to prevent duplicate credits, and returns a proper 200 response so Stripe confirms delivery successfully. I can also provide a full end-to-end test using Stripe test payments along with a screen recording or screenshots showing the webhook triggering correctly and the Runway ML credits being applied successfully. The code will be clean, lightweight, documented, and easy to deploy on a serverless platform such as AWS Lambda, Vercel, or Google Cloud Functions. Kindly send me a message to discuss more. Thanks
£180 GBP in 4 days
8.2
8.2

Hi, Good Day I understand exactly what you need: a simple and secure Stripe webhook that listens for successful subscription payments and automatically credits users through the Runway ML API based on their subscription tier. I can build a lightweight solution that: Validates Stripe webhook signatures securely Detects subscription tier via Product/Price ID Maps each tier (Basic, Pro, etc.) to the correct Runway credit amount Sends the credit request to the Runway ML REST API Logs events to prevent duplicate crediting and allow auditing Returns proper 200 responses so Stripe confirms delivery The implementation will stay focused strictly on the webhook functionality you requested without unnecessary additions. I can develop it in Node.js, PHP, or Python depending on your preference and hosting environment. Before final delivery, I’ll also perform a test payment and provide a screen recording or screenshots showing the full successful workflow from Stripe payment to Runway credit update. Cheers, M Adeel
£150 GBP in 4 days
8.0
8.0

Hello, Let's Create A Webpage Change Alert System I will develop a secure webhook to integrate Stripe and Runway ML. This system will automatically top up user usage based on their subscription tier. My approach involves validating Stripe signatures, identifying subscription levels, and accurately crediting Runway ML. Logging will ensure audibility and prevent double-crediting. Could you confirm the exact credit amounts for each subscription tier in Runway ML? Regards, Muhammad Azeem
£75 GBP in 2 days
7.5
7.5

Hi, this integration project involves precise event-driven orchestration between Stripe and RunwayML, where the main engineering challenge lies in ensuring reliable, idempotent webhook processing under real-world payment event conditions. I usually design webhook handlers with strict validation, idempotency keys, and robust audit logging to prevent double-crediting and guarantee data integrity. My experience with Custom Feature Development & Integration involved reviewing existing systems and implementing secure, maintainable backend features with detailed logging, which directly applies here. I recommend separating the webhook listener from the credit posting logic to isolate concerns and simplify error handling, ensuring that Stripe events are acknowledged only after successful credit application. Though not LLM-specific, the reliability principles I apply include thorough validation and fallback mechanisms to avoid inconsistent states. This system can be built for long-term production use with clear logging and monitoring for audit and troubleshooting. I can provide a detailed outline of the webhook flow, idempotency strategy, and logging approach for your review. Thanks, Hercules
£250 GBP in 7 days
7.1
7.1

THIS IS A CLEAN, STRAIGHTFORWARD WEBHOOK INTEGRATION TASK — and I can build exactly what you described without unnecessary upsells or added services. With 12+ years of experience in backend development, Stripe integrations, webhook systems, and API automation, I can create a secure webhook service that listens to Stripe subscription events and correctly credits Runway ML accounts based on subscription tier mappings. The webhook will: • Validate Stripe webhook signatures securely • Detect successful subscription payments/events • Identify the correct Stripe product/price ID • Map tiers (Basic, Pro, etc.) to the correct credit amounts • Call the Runway ML REST API automatically • Log all credit actions to prevent duplicate processing • Return proper 200 responses for Stripe delivery confirmation • Include clean error handling and retry-safe logic Preferred Stack: Node.js or Python webhook service with secure environment variables, logging, and lightweight database/file logging for audit tracking. I can also perform a full sandbox/live test payment flow and provide a screen recording or screenshots showing: • Successful Stripe event delivery • Credit assignment • Webhook execution logs • Successful Runway ML API response The implementation will stay lightweight, secure, and easy for you to maintain.
£135 GBP in 7 days
7.4
7.4

Hello, I see you're looking to integrate Stripe webhooks with RunwayML to manage your AI video service subscriptions efficiently. A key challenge is ensuring real-time syncing between Stripe payments and your service access without delays or errors. With over 10 years’ experience in Laravel, PHP, and integrating payment gateways with SaaS platforms, I can create a robust, secure webhook system tailored to your needs. You can check samples from our work at https://www.freelancer.com/u/eliaa Looking forward to hearing from you. Best Regards, Elia Fawzy.
£250 GBP in 7 days
6.9
6.9

Hello, With 4 years of experience in PHP, JavaScript, Node.js, and API Integration, I understand your requirement for integrating Stripe with RunwayML for your SAAS website. I have carefully reviewed the project description and I am confident in providing a secure webhook solution that will handle multiple subscription tiers, validate Stripe signatures, identify tiers, update credits in RunwayML, log actions, and ensure a successful response to Stripe events. I am proficient in handling REST API integrations and payment processing, making me well-suited for this task. Let's discuss further details in the chat to ensure a seamless integration. Looking forward to collaborating on this project. Best regards, Taimoor from Pixels Soft
£199 GBP in 7 days
6.6
6.6

I've built similar billing integrations for SaaS platforms like VDYO. The tricky part isn't sending the webhook, it's verifying signatures and handling retries so users don't lose access if a request fails. I can write a secure handler in Node.js or Python to sit between Stripe and your service. What platform are you using to host the current website?
£30 GBP in 7 days
6.7
6.7

Hello Hi there, I understand you're looking to streamline your subscription sales using Stripe checkout links. I have extensive experience integrating Stripe for recurring payments, ensuring a smooth checkout process for your customers. My focus is on creating robust, user-friendly solutions that drive conversions. Let's connect to discuss how I can help optimize your subscription revenue. Giáp Văn Hưng
£140 GBP in 7 days
6.8
6.8

Hello, I can set up a simple and secure webhook that listens to your Stripe events, identifies each subscription tier, and instantly sends the correct credit top‑up to Runway ML without any unnecessary extras. I’ll keep the flow clean and reliable by validating signatures, mapping tiers, and logging each call to avoid double‑crediting. I’ve worked with similar Stripe and REST API setups, so integrating your checkout links with Runway ML will be handled in a direct and practical way. I can also provide a test payment proof so you know everything runs as expected. Thanks, Teo
£150 GBP in 12 days
6.8
6.8

Dear Client, Hello There! I’m Md Toriqul Islam, a full-stack developer experienced in secure webhook systems, Stripe integrations, and API automation, and I can dive into your project immediately. I understand you need a secure Stripe webhook that validates signatures, detects subscription tiers from price IDs, and triggers Runway ML API credit allocation with logging, idempotency protection, and reliable 200 responses for event delivery. My skills include Stripe APIs, Node.js, webhooks, REST integration, and secure backend automation. Ready to build immediately, ensure secure delivery, and would be happy to discuss details and testing included always. Best regards, Md Toriqul Islam.
£70 GBP in 5 days
6.2
6.2

As an experienced Web Engineer, I understand the critical importance of reliable web integrations. I have a deep proficiency in both JavaScript and PHP, two of the primary programming languages that will underpin our webhook integration. Over my tenure, I've worked on numerous projects that required seamless transfer of data between platforms and services, making me ideally positioned to handle the integration between Stripe and Runway ML for your SAAS site. The task at hand involves not only interpreting Stripe's events securely but also accurately mapping different subscription tiers to respective credit amounts in Runway ML. My 10 years of web experience has honed my attention-to-detail while maintaining a solid understanding of code and systems, ensuring every step is perfectly executed with precision. Additionally, I appreciate the importance you place on open communication, directness and reliability - values we share. You can thus be confident that choosing me for this project means getting an expert who respects your project scope and budget. Let's get started; I'll perform a test payment as requested and happily provide you with a screen recording to assure you the job is done right from the start.
£20 GBP in 1 day
6.0
6.0

Hello there, we are a team of AI experts, senior Full Stack Web and Mobile App Developers and we can do this project in no time. Please, send me a message to discuss the work. Thanks Ashish Kumar.
£135 GBP in 7 days
5.9
5.9

You want Stripe payments on your ecommerce site to instantly and reliably unlock the right Runway ML credits for your AI video service, but the gap between Stripe events and Runway ML’s API is wasting time and leaves room for error. You’ll get a secure webhook that listens for Stripe checkout completions and invoices, validates the data, and tops up the correct Runway ML credits based on the exact subscription tier your customer has paid for. First, I’ll set up the webhook to listen for Stripe events and securely validate every incoming request. Then, I’ll map each Stripe tier to the right Runway ML credit amount and handle the API call instantly after payment. Finally, I’ll add proper logging so every credit action is recorded and double-crediting can’t happen. Would you like the test payment to be made with your own Stripe test account or should I set up a sample for the demonstration?
£138 GBP in 7 days
6.0
6.0

Hello, I can develop a small, secure webhook that will listen to Stripe events, recognise the subscription tier a customer just paid for, and immediately call the Runway ML REST endpoint to top up that customer usage. Let's chat and discuss this project in more detail. I am looking forward to your response, Fahad.
£100 GBP in 1 day
5.7
5.7

Hello there, I know Stripe to RunwayML webhook for SAAS is critical and I'm confident I can implement a secure, multi-tier credit top-up flow. I’m an independent developer with hands-on experience building Stripe webhooks, tier mapping, and REST API calls to external services. I’ve built and deployed similar webhooks that read price IDs, validate signatures, and perform idempotent actions with logging for auditing. I can map Basic, Pro tiers to Runway ML credits and ensure a 200 response so Stripe marks the event delivered, while keeping a clean audit log to prevent double-crediting. I can handle end-to-end, including test payments, logs, and audit trails. I’ll deliver a secure webhook in Node.js or Python, tested in a staging environment, with a clear mapping from Stripe product/price IDs to Runway ML credit top-ups. Timeline: a working MVP within 2 days, with optional refinements after your feedback. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan
£150 GBP in 1 day
5.1
5.1

Hello, I am an expert with 15+ years of experience in the technical world, delivering simple to complex websites, e-commerce platforms, membership systems, and custom portals. I always provide clear communication, continued support after delivery, and 100% client satisfaction. I specialize in Node.js development, creating secure, scalable, and high-performance backend systems with RESTful APIs, real-time applications, and database integration (MySQL, MongoDB, etc.). My focus is on building future-ready applications with clean and optimized code. If you are looking for a dedicated Node.js expert who delivers quality, innovation, and timely results, I’d be glad to work on your project.
£100 GBP in 7 days
5.2
5.2

Hi there, I’ve reviewed the requirements and I’m fully available to start instantly. I’ll make sure every detail is spot on. Do you have a specific launch date in mind?
£30 GBP in 1 day
5.0
5.0

Birmingham, United Kingdom
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