RT Avi Chawla (@_avichawla)Devs often treat Agent context as an access problem.The thinking goes like this:"If there's no API, just scrape the website. And if scraping breaks, let the Agent use the browser like a human."This sounds reasonable until you try to run it in production.To see why, consider a simple task:"Watch this site and notify me when the price changes."Without an API, the Agent has to infer meaning from HTML, layouts, and UI behavior.But if a pop-up appears or the DOM shifts, then suddenly, ...

Devs often treat Agent context as an access problem.The thinking goes like this:"If there's no API, just scrape the website. And if scraping breaks, let the Agent use the browser like a human."This sounds reasonable until you try to run it in production.To see why, consider a simple task:"Watch this site and notify me when the price changes."Without an API, the Agent has to infer meaning from HTML, layouts, and UI behavior.But if a pop-up appears or the DOM shifts, then suddenly, the Agent is clicking the w ...

Overview - The document is Postman's Playbook [1]

General Overview - The document is Postman's Playbook [1]

Core Viewpoint - The recent outage of Amazon AWS has highlighted the vulnerability of modern internet infrastructure, affecting millions of users and various industries globally [2][3][13]. Group 1: Incident Overview - On October 20, a significant internet outage occurred, lasting over 15 hours and impacting countless businesses and users worldwide [2][3]. - Major affected services included Amazon's own platforms, Duolingo, Snapchat, Reddit, Disney+, Apple TV, Roblox, Fortnite, Steam, PlayStation, Xbox, Ubisoft, and various financial services like Robinhood and Coinbase [4]. - The outage was described as "half of the internet being unavailable," marking it as one of the most severe AWS incidents in recent years [8]. Group 2: Technical Details - The root cause of the outage was identified as an issue with the DNS resolution of the DynamoDB API, which prevented the system from locating the network address of this critical database service [10]. - The problem originated from the US-EAST-1 data center, which is Amazon's oldest, largest, and busiest data center cluster [10][12]. - This incident marks at least the third major outage linked to the US-EAST-1 data center in the past five years, raising concerns about its reliability [12]. Group 3: Industry Implications - The incident underscores the dependency of the global internet on a few large cloud computing companies, such as Amazon, Google, and Microsoft, for foundational infrastructure [16][17]. - The outage illustrates the fragility of modern society's reliance on internet services, which have become as essential as utilities like water and electricity [15]. - Experts suggest that while such issues can cause significant disruption, they are typically resolved relatively quickly, with no indications of a cyberattack being involved [18].

Core Insights - The article explains the concept of Webhook in simple terms, comparing it to a "doorbell" for systems to notify each other in real-time, eliminating the need for constant polling [2][10][12]. Group 1: Understanding Webhook - Webhook is described as a "reverse" API that allows systems to send notifications to each other without the need for constant inquiries [10][12]. - The traditional API method requires users to actively check for updates, which is inefficient and resource-consuming [6][7]. - Webhook simplifies this process by allowing systems to push notifications when specific events occur, such as payment confirmations [12][14]. Group 2: Installation and Functionality - Setting up a Webhook involves three main steps: providing a Callback URL, specifying the events to subscribe to, and handling incoming notifications [17][20][23]. - The Callback URL acts as the "address" where notifications will be sent, and it must be configured in the system that will send the notifications [18][19]. - The system sends an HTTP POST request containing a Payload with relevant information when an event occurs [24][26]. Group 3: Common Pitfalls - Security is a major concern, as the Webhook URL is publicly accessible, making it vulnerable to unauthorized requests [29][30]. - Implementing signature verification is crucial to ensure that notifications are legitimate and from trusted sources [33][35]. - Handling duplicate notifications is necessary to prevent processing the same event multiple times, which can lead to errors [39][40]. Group 4: Practical Implementation - The article provides a step-by-step guide for setting up a Webhook receiver using Python and Flask, including code examples [26][50][56]. - It emphasizes the importance of using tools like Ngrok to expose local servers to the internet for testing purposes [62][63]. - Postman is recommended for sending test requests to verify the Webhook functionality [70][73]. Group 5: Automation with n8n - The article concludes by demonstrating how to integrate Webhook functionality into n8n for automated workflows, allowing for seamless communication between systems [75][88]. - It highlights the shift from a "pull" model to a "push" model in system interactions, enhancing efficiency and responsiveness [85].

To recap, there are the steps:- Open Postman's MCP generator.- Select the APIs from Postman's API Network.- All these APIs will be available as tools in your MCP server.- Download the code provided by Postman.- Specify API keys if needed in the .env file.- Prepare your MCP config file JSON and add it to Claude/Cursor.Done!Thanks to @getpostman for working with me on this thread! ...

Core Viewpoint - Requestly is presented as a versatile API client tool that combines HTTP interception, request modification, interface testing, and data simulation, claiming to be permanently free and fully open-source [4][6][12]. Features Overview - Requestly offers a comprehensive set of capabilities for developers, including collection management, multi-environment variables, complete request history, a visual interface, and collaboration features [7]. - Unlike many cloud-dependent tools, Requestly prioritizes local storage, allowing users to manage collections, switch environments, and run scripts similarly to Postman, while also providing real-time interception and modification of requests and responses like Charles [8]. - Advanced capabilities such as dynamic simulation, delay injection, and script control enhance API debugging and frontend development [9]. User Interface and Functionality - The interface features a three-column layout with a collection tree on the left, request parameters in the middle, and response data on the right, with all data stored locally in Git-tracked JSON files [14]. - Users can seamlessly switch between multiple environments (development, testing, production) using a dropdown menu, supporting both global and collection-level variables [16][17]. - The tool allows for easy creation of new requests or batch imports from formats like cURL, Postman collections, and OpenAPI [20]. HTTP Interception and Mocking - Requestly includes an HTTP interceptor that captures and modifies any HTTPS requests and responses, enabling real-time monitoring and editing [28]. - Users can create local or cloud-based mock APIs that support REST and GraphQL, allowing frontend developers to work without waiting for backend services [30].

Core Viewpoint - The article discusses the increasing importance and variety of API client tools in 2025, highlighting their efficiency and user-friendliness for developers. Group 1: Popular API Client Tools - Postman is a widely used API debugging tool known for its user-friendly interface and comprehensive features, including request building, documentation, and testing assertions [4][5]. - Insomnia is an open-source, lightweight API client that supports REST, GraphQL, and gRPC, designed for developers seeking a simple and efficient interface [8][9]. - Paw is a macOS-specific API client with a beautiful interface and full functionality, including request building and team collaboration features [11][12]. - Hoppscotch is a lightweight, open-source API client that operates in the browser, supporting modern protocols like WebSocket and GraphQL [14]. - Bruno is a new open-source API client that emphasizes offline functionality and project-based request management, suitable for developers concerned about privacy [16][18]. - Apifox is a Chinese API ecosystem tool that integrates API documentation, debugging, mocking, and testing, with a user-friendly design for local developers [19]. - Apipost is another Chinese API client focusing on debugging, documentation generation, and team collaboration, featuring a modern interface [21][22]. - Thunder Client is a lightweight API client plugin for VS Code, allowing developers to debug APIs directly within their coding environment [24][25]. - Advanced REST Client (ARC) is an open-source API debugging tool that has transitioned from a Chrome extension to a standalone desktop application, maintaining its comprehensive functionality [26][27]. - HTTPie is a user-friendly API client that emphasizes human readability, available in both desktop and web versions, supporting REST and GraphQL [28][29].