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We are looking for an experienced developer with expertise in ElevenLabs Conversational AI, APIs, and Webhooks to integrate our existing application with an AI agent built on the ElevenLabs platform. Project Overview We have an existing application with REST APIs that needs to be connected to an ElevenLabs AI agent. The AI agent should be able to communicate with our backend in real time using APIs and webhooks to retrieve data, perform actions, and provide dynamic responses to users. Responsibilities Integrate our application APIs with an ElevenLabs AI Agent. Configure and implement ElevenLabs webhooks. Connect REST APIs for real-time data retrieval and updates. Handle authentication (API Keys, OAuth, JWT, or similar methods). Parse and process JSON request/response payloads. Implement error handling, logging, and retry mechanisms. Test and troubleshoot the complete integration. Provide clean, well-documented code. Assist with deployment and final testing. Required Skills Strong experience with ElevenLabs Conversational AI. Experience working with ElevenLabs Webhooks and API integrations. Strong knowledge of REST APIs and JSON. Experience with backend development (Node.js, Python, .NET, PHP, or similar). Knowledge of webhook security and authentication. Familiarity with cloud platforms such as AWS is a plus. Experience integrating third-party AI platforms. Deliverables Fully functional ElevenLabs AI agent integrated with our application. Secure webhook implementation. API integration with all required endpoints. Source code and documentation. Successful end-to-end testing.
Project ID: 40607135
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45 freelancers are bidding on average ₹8,858 INR for this job

Hi, I have more than 3 years of experience building AI voice agents, API integrations, and automation systems. I have worked extensively with ElevenLabs, webhooks, REST APIs, and backend integrations to create reliable, real-time AI solutions. I can integrate your ElevenLabs AI agent with your existing application, implement secure API and webhook communication, handle authentication and error handling, and deliver a fully tested solution with clean documentation and source code.
₹10,000 INR in 5 days
5.1
5.1

Hi, Nemanja here, from Serbia, to help you. An ElevenLabs integration needs more than simply connecting an API endpoint—the agent must be able to securely call your backend, receive reliable real-time data, and handle failures without breaking the conversation flow. I noticed you already have REST APIs and need them connected to an ElevenLabs Conversational AI agent through secure webhooks. I would implement the API and webhook integration, authentication, JSON request/response handling, error handling, logging, retries, and complete end-to-end testing. I work with Node.js, Python, REST APIs, API integration, AWS, AI integration, and automation, and can provide clean, documented code that is ready for deployment and future expansion. Do you already have the ElevenLabs agent and backend API endpoints configured, or should I also help define the webhook actions and API request/response structure? Looking forward to hearing from you.
₹8,653 INR in 3 days
4.3
4.3

You need to connect your existing application with an ElevenLabs Conversational AI agent through secure APIs and webhooks, with real-time data exchange and reliable backend communication. I have experience building AI integrations using OpenAI/LangChain pipelines, REST APIs, authentication flows, and cloud-based backend systems. At Marin Software (US), I built Python-based serverless services on AWS Lambda, integrated AI agents, and worked on real-time data pipelines with secure API communication. For this project, I can handle the ElevenLabs API integration, webhook setup, JWT/API key authentication, JSON payload processing, error handling, retries, and deployment testing. I focus on keeping integrations clean, documented, and easy to maintain. I have also built backend services with FastAPI, Node.js, and event-driven systems using AWS services, which matches the requirements for connecting an AI agent with your application.
₹10,000 INR in 3 days
4.4
4.4

As an experienced full-stack developer with a strong background in API development and integration, I believe I have the perfect skillset for your ElevenLabs project. I have been in the tech industry for over 8 years, successfully completing more than 200 projects for clients across different domains. In fact, incorporating AI into existing applications with APIs has become a bit of specialty for me! My comprehensive understanding of the entire integration process from planning to deployment will ensure that not only is your application fully functional but also that it remains scalable, secure and error-free both during and after our engagement. Lastly, please be assured of my dedication to details and clear documentation throughout this project to provide you with complete control and visibility into all aspects of the final product.
₹12,500 INR in 7 days
4.5
4.5

Hello, I can help with your "ElevenLabs WebHooks and API Programmer." project. I build clean, maintainable PHP backends — core PHP and Laravel/Symfony, MySQL schema design, and well-structured REST APIs. For work involving api development, api integration, api testing, ai chatbot development, ai model integration, ai development, ai agent swarms, ai integration, ai automation, ai app development, I pay close attention to validation, security, and readable code, delivering in small, testable milestones. I provide clean commits and clear documentation. Could we discuss the specifics before I firm up the timeline? ⭐ 5.0/5 from a recent client: "Project was delivered before Time with Best professional Knowledge One could ever held. Thanks for the support" Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.
₹7,500 INR in 2 days
3.9
3.9

100% doable. Solid brief, you've laid out every endpoint clearly. I've built ElevenLabs Conversational AI integrations before, wiring agents into backend APIs and webhooks for real-time data and actions. My approach is a little different though. I'd handle auth cleanly first, JWT or API key depending on your stack. Then wire webhooks with retry logic built in. Clean, documented, nothing fragile. Like I said, 100% doable. Can turn this around in about a week. Feel free to DM me for case studies. Or check the projects on my profile. Let's do it.
₹7,500 INR in 7 days
3.7
3.7

ElevenLabs' webhook system for Conversational AI is straightforward once you nail the signed payload verification, but the real catch is latency. If your backend takes more than a couple seconds to respond to a tool call, the agent's conversation flow breaks and users hear dead air. I'll wire up your REST endpoints as ElevenLabs server tools, configure the webhook listeners with proper signature validation, and set up retry logic with async fallbacks for any slower queries. I've done similar real-time integrations where the AI agent needs sub-second backend responses, so I'll structure the middleware to cache frequent lookups and keep response times tight. One thing worth noting: ElevenLabs doesn't queue failed webhook deliveries the way Stripe does, so your error handling needs to be solid on the first pass. 1) Is your existing backend Node. Best regards, Shayan
₹1,650 INR in 3 days
3.5
3.5

Hi — Abror-Yakubov here from Uzbekistan, "ELEVENLABS WEBHOOK INTEGRATION" — you need your AI agent connected to your backend reliably. I would connect the ElevenLabs agent with your REST APIs, handle webhook events, secure authentication, and add proper error handling so failed requests can be tracked and recovered. I would first map the existing API flow, then test each action from the AI agent end to end. The important part is keeping real-time responses stable when API calls fail or return unexpected data. Do you already have the ElevenLabs agent configured with its webhook endpoints, or should that setup be included too? Looking forward to working with you.
₹7,875 INR in 6 days
3.0
3.0

Hi, I see you need your existing REST API backend linked to an ElevenLabs conversational AI agent, with secure webhooks for real‑time data exchange, authentication, error handling and full testing. I’ve spent 10 + years building AI‑driven services, including REST integrations for OpenAI and ElevenLabs, implementing OAuth/JWT security, logging and retry logic, and deploying Dockerized pipelines on AWS. I’ll deliver a clean, documented integration, run end‑to‑end tests, and hand over deployment scripts so the solution stays maintainable. 1. Which auth method (API key, OAuth, JWT) do you prefer for the webhook calls? 2. Could you share example request/response payloads for the AI agent? 3. Do you want the integration containerized for easy scaling?
₹30,000 INR in 2 days
3.0
3.0

Hello, Integrating your existing application with an ElevenLabs AI agent involves establishing real-time communication through APIs and webhooks. The key focus will be on ensuring seamless data retrieval, dynamic responses, and secure authentication methods. My approach would begin with a thorough review of your current REST APIs and backend architecture to identify optimal integration points. I will prioritize robust error handling, logging, and testing to guarantee a reliable implementation. Having previously worked on similar AI integrations and API projects, I understand the importance of clean, well-documented code and thorough testing procedures. My experience with ElevenLabs Conversational AI, webhooks, and REST API integrations aligns well with your requirements. A few questions: - Are there specific security protocols or compliance standards that need to be followed? - Do you have a preferred cloud platform for deployment? I look forward to discussing the project further. Best regards,
₹7,000 INR in 2 days
2.7
2.7

Hi, I've worked extensively with REST APIs, webhooks, and AI integrations, and I'd be happy to help integrate your existing application with an ElevenLabs Conversational AI agent. I can securely connect your backend APIs, configure webhooks, handle authentication (API keys, JWT/OAuth), process JSON payloads, and implement reliable error handling, logging, and end-to-end testing. My focus is on delivering a stable, well-documented integration that works seamlessly in production. I'd love to discuss your API architecture and ElevenLabs setup to ensure a smooth integration. I'm ready to get started right away. Best, Shailender
₹7,000 INR in 10 days
2.3
2.3

The critical piece here is the webhook handshake—getting ElevenLabs to talk to your backend in real time and handling secure callback authentication. I’ve set up conversational AI integrations using webhooks and REST, including secure payload exchanges, on a logistics AI platform (PackSmart AI) with dynamic endpoint mapping and strict auth. I’d use Node.js with Express to build the middleware, parse JSON payloads, handle retries, and log each webhook call. For auth, I set up and validate HMAC or JWT tokens depending on your backend, and I can deploy on your preferred cloud. Does your backend expose all the required endpoints already, or do some still need to be built out for the agent’s use cases? Pradeep
₹7,000 INR in 7 days
2.2
2.2

Hi, I can integrate your existing application with an ElevenLabs Conversational AI agent using secure APIs, webhooks, authentication, JSON payload handling, logging, retries, and end-to-end testing. The best solution is to first review your current REST API endpoints, required agent actions, authentication method, webhook events, and expected response flow. I’ll then configure the ElevenLabs agent to communicate with your backend in real time, fetch data, trigger actions, process responses, and return dynamic answers to users. I’m comfortable with ElevenLabs Conversational AI, webhook integration, REST APIs, JSON, Node.js/Python/PHP-style backends, API keys, OAuth/JWT, webhook security, error handling, retry logic, logging, testing, and deployment support. Deliverables will include: * ElevenLabs agent API integration * Secure webhook setup * REST endpoint connection * Authentication handling * JSON request/response processing * Error handling and retries * Logging and debugging support * End-to-end testing * Source code and documentation * Deployment assistance I’ll focus on a reliable real-time integration where the AI agent can safely retrieve data, perform backend actions, and provide accurate dynamic responses. Best regards Ankit
₹7,000 INR in 1 day
2.3
2.3

Hey! I pride myself in having the comprehensive skill set necessary to tackle projects like this one. From my solid 6+ years of professional experience, I have come to master not only API integration, but also Conversational AI — particularly that utilizing ElevenLabs platform. This expertise in Conversational AI, Webhooks and API integrations will prove invaluable as I undertake your project, combining already acquired knowledge to execute an excellent job. My fluency in essential programming languages such as Node.js and Python, bolstered by my experience with full-stack development and backend architecture, will ensure the REST APIs of your existing application are seamlessly connected to the ElevenLabs AI Agent. I have a strong working knowledge of REST APIs and JSON protocols, allowing efficient data retrieval and updates between diverse platforms- drammatically enhancing communication between the IBM Watson AI and your app in real-time. Moreover, I stay updated on industry knowledge and best practices for security measures through continuous learning. An area such as webhook security and authentication cannot be undermined especially for a project of this nature - something I am very much aware of. What's more? I approach my work with dilligence, creating well-documented code that coupled with troubleshooting skills ensures realiability and guarantees lasting solutions for business growth. Choose me for a product you can truly rely on!
₹5,500 INR in 15 days
1.7
1.7

Hi,I carefully reviewed your requirements, and this project aligns well with my experience in backend development, REST API integrations, secure authentication, and webhook-based workflows. I understand that the objective is to connect your existing application with an ElevenLabs AI agent, enabling real-time communication through APIs and webhooks while ensuring secure, reliable, and maintainable integration. The integration will include: ✔ Secure REST API integration with your existing backend ✔ Webhook configuration for real-time communication ✔ JSON request/response parsing and validation ✔ Authentication using API Keys, JWT, or OAuth (based on your current implementation) ✔ Error handling, logging, and retry mechanisms for reliable communication ✔ Well-structured, documented code with end-to-end testing One quick question: Is your ElevenLabs AI agent already configured with conversation flows, or do you also need assistance configuring the agent and its tools in addition to the backend integration? I'm available to start immediately and would be happy to discuss the integration architecture before development begins. Looking forward to working with you. Thank you.
₹7,000 INR in 7 days
1.7
1.7

Hi, I will connect your existing REST APIs to the ElevenLabs conversational AI agent so it can retrieve data, perform actions, and deliver real-time, dynamic responses via secure webhooks and APIs. I have spent the last 4 years solving exactly this type of problem. I'll configure ElevenLabs webhooks, implement secure authentication (API Keys/OAuth/JWT), build webhook handlers to parse and process JSON payloads, add logging, retry mechanisms, and robust error handling, and integrate your backend endpoints (Node.js, .NET, or PHP) for real-time communication, applying proven AI Integration practices and solid AI Development to complete the AI App Development pipeline. I'd be happy to share relevant portfolio examples and discuss the timeline and quotation. Best regards, Ribal www.freelancer.com/u/vertechsolutions
₹12,500 INR in 6 days
2.8
2.8

I build exactly this - ElevenLabs Conversational AI agents wired into live backends over server tools + webhooks. Closest proof: I run a production voice platform for a tier-1 bank - 500K+ commands/month, 99.3% uptime, sub-800ms end-to-end - so the real-time constraint here is what I'd design around first. Two things decide whether this feels instant or broken: 1) Server tools have a latency budget. When the agent calls your REST endpoint mid-conversation, anything past ~2s and it audibly stalls. So I split your endpoints: fast reads answered inline, slow actions acknowledged verbally and completed async, then confirmed - instead of dead air. 2) Post-call webhooks retry. ElevenLabs signs them (HMAC + timestamp) and re-sends on any non-2xx, so the handler must verify the signature and be idempotent on the conversation ID - otherwise one retry double-writes the record. I'd also keep the API key server-side and mint signed URLs for the agent rather than shipping credentials clientside. Approach: map endpoints to tool schemas -> auth (JWT/OAuth) -> webhook receiver with retry + structured logging -> end-to-end test against your app. Portfolio: freelancer.com/u/ZohaibSathio One question: is your existing REST API already externally reachable and authenticated, or do I need to expose a thin gateway for the agent to call? - Zohaib
₹6,300 INR in 10 days
1.5
1.5

Hello Sir, I am a new freelancer, but I have experience in Python, Flask, REST APIs, automation, and AI integrations. I understand your project and I am confident I can complete it with clean and well-documented code. I am honest, hardworking, and I will give my full effort to deliver a quality solution. If you give me this opportunity, I will do my best to complete your project successfully. Thank you for your time. I look forward to working with you.
₹5,000 INR in 4 days
0.0
0.0

Hello There, Couple of quick question: * Should the ElevenLabs webhooks simply receive events, or do you also need them to trigger actions in your application and return responses in real time? * Do you already have the API endpoints ready, or would you like us to build the complete webhook flow, including authentication, signature verification, retries, and error handling for a production-ready integration? We have experience in integrating ElevenLabs APIs and webhooks with secure authentication, real-time event processing, webhook signature validation, reliable retry handling, and seamless integration into existing web applications and backend services. Our company has 17+ years experience in IT service development. You might see our profile is new, but not new in this business. Kindly open the chatroom, we can discuss your requirement in detail. Also release the payment once we are finish the task as you prefer. Give us a opportunity and we won't fail you. Thanks, Sandeep K.
₹1,500 INR in 7 days
0.0
0.0

My name is Neha and I'm eager to leverage my extensive 9+ years of hands-on experience in web and mobile app development, specifically with E-commerce, CMS and Conversational AI platforms like ElevenLabs. I've worked on integrating APIs, implementing webhooks, parsing JSON payloads, handling authentication and more, topping it all off neatly with end-to-end testing. Having successfully delivered numerous projects as a part of my existing IT services which aim at turning ideas into reality, I understand the criticality of delivering high-quality work that is well-documented and meets your specific needs. I'm an expert in various backend development languages such as Node.js, Python, .NET, PHP which makes me adaptable to your system. Over the years, I have worked on a range of technologies from different domains - exactly what you need for this project. Moreover, my familiarity with cloud platforms like AWS can greatly enhance the stability and scalability of our product. Choosing me means choosing a polished professional who can not only meet but exceed expectations. My value addition isn't just limited to the project's scope - it extends even post-deployment with free 3 months support providing you peace of mind. Furthermore, my effective costing model will also be easy on your budget ensuring a mutually win-win association. Thanks for considering me for this incredibly exciting project!
₹17,000 INR in 7 days
0.0
0.0

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