Serverless VS Requestly

Compare Serverless VS Requestly and see what are their differences

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Serverless

Toolkit for building serverless applications

Requestly

A Powerful API Mocking and Testing Tool

Landing page //
2023-08-06

Requestly //
2025-02-12
Rest Client //
2025-02-12
HTTP Interceptor //
2025-02-12
API Mocking //
2025-02-12
Requestly //
2025-02-12

Requestly is a modern and powerful companion for API Development and Testing. It is an open-source tool purpose-built to speed up and simplify API development workflow for developers and QAs. It is a combination of API Client and HTTP Interceptor that helps create and share API Contracts, testing APIs, and easily mock and integrate them into web and mobile apps.

Serverless

Website: serverless.com
Pricing URL: Official Serverless Pricing
$ Details
Platforms: -
Release Date: -

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Requestly

Website: requestly.com
Pricing URL: Official Requestly Pricing
$ Details: freemium
Platforms: Google Chrome Firefox Edge Safari Brave Opera Vivaldi Android Windows Linux Mac OSX MacOS
Release Date: 2021 January
Startup details
Country: United States
State: California
City: San Francisco
Founder(s): Sachin Jain, Sagar Soni, Sahil Gupta
Employees: 20 - 49

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Serverless features and specs

Scalability
Serverless architectures can automatically scale up or down based on the traffic, without the need for manual intervention.
Cost Efficiency
You only pay for what you use. There are no expenses for idle times because billing is based on the actual amount of resources consumed by your application.
Reduced Maintenance
No need to manage, patch, update, or monitor servers. This allows focus on writing code and deploying features.
Speed of Development
Serverless platforms provide built-in integration with other services, which makes it quicker to develop and deploy applications.
High Availability
Serverless platforms typically offer high availability and fault tolerance out of the box, reducing the risk of downtime.

Possible disadvantages of Serverless

Cold Start Latency
Serverless functions can suffer from higher latency during initial invocation or when they haven’t been used for a while.
Limited Execution Time
Most serverless platforms impose a maximum execution time limit on functions, which may not be suitable for long-running applications.
Vendor Lock-In
Serverless architectures often rely on the specific features and services of a cloud provider, which can make it difficult to switch providers.
Complexity in Debugging
Debugging and monitoring serverless applications can be more challenging compared to traditional architectures, due to their distributed and ephemeral nature.
Security Concerns
Sharing resources on a serverless platform can introduce security vulnerabilities that must be managed vigilantly.

Requestly features and specs

Redirect URL
Block Network Requests
Modify Request & Response Header
Modify Response
Supercharge Selenium
Session Replay
Modify Query Params
Team Workspace
API Client
API Mocks
GraphQL Support
Zero Setup
Auto Capture Sessions
Network Logs
Console Logs

Analysis of Serverless

Overall verdict

Serverless is a good choice for developers who want to focus more on writing code rather than managing servers. It is well-suited for scenarios where scalability, cost-efficiency, and rapid deployment are critical. However, it might not be the best option for applications with high execution duration or complex dependencies that require low-latency network access or specialized hardware.

Why this product is good

Serverless (provided by serverless.com) is a popular framework for building applications that leverage serverless architecture, which eliminates the need for server management and minimizes overhead. It allows developers to deploy functions without worrying about the underlying infrastructure, scaling automatically according to demand. This streamlines the deployment process, reduces operational costs, and accelerates development timelines.

Recommended for

Startups and small businesses looking to minimize infrastructure costs.
Developers focusing on microservices and event-driven architectures.
Teams needing rapid prototyping and development cycles.
Applications with variable workloads and unpredictable traffic patterns.

Analysis of Requestly

Overall verdict

Requestly is generally regarded as a good tool due to its comprehensive functionalities and ease of use. Its ability to seamlessly manage network requests makes it suitable for both beginners and experienced developers.

Why this product is good

Requestly is widely considered a valuable tool because it offers robust and flexible features for intercepting and modifying network requests. Developers and QA testers appreciate it for its ability to simulate and debug API calls efficiently. It is particularly useful for testing changes without altering the codebase and for working with web applications in development and production environments.

Recommended for

Developers looking to debug and test API endpoints.
Quality Assurance (QA) teams that require reliable testing tools for web applications.
Technical professionals who manage network traffic and need to modify or redirect requests effortlessly.
Anyone involved in web development who needs to simulate network conditions or test application behavior under different scenarios.

Serverless videos

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Thoughts on Zero V3, Instant Page and Serverless 1.37!

Requestly videos

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Category Popularity

0-100% (relative to Serverless and Requestly)

Serverless

Requestly

Developer Tools

34 34%

Developer Tools

66% 66

Open Source

100 100%

Open Source

0% 0

Testing

0 0%

Testing

100% 100

Cloud Computing

100 100%

Cloud Computing

0% 0

Questions & Answers

As answered by people managing Serverless and Requestly.

Who are some of the biggest customers of your product?

Requestly's answer:

Verizon
AT&T
Adobe
Salesforce
Telegraph
Intuit
Verizon

How would you describe the primary audience of your product?

Requestly's answer:

Front-end developers, QAs, PMs, Digital Marketers

What makes your product unique?

Requestly's answer:

Requestly is an open-source API development and testing tool that combines the capabilities of an API Client and HTTP Interceptor, making it a better alternative to Postman + Charles Proxy. It simplifies API mocking, request modification, and debugging with an intuitive no-code interface, enabling developers and QAs to test APIs efficiently.

User comments

Share your experience with using Serverless and Requestly. For example, how are they different and which one is better?

Reviews

These are some of the external sources and on-site user reviews we've used to compare Serverless and Requestly

Serverless Reviews

We have no reviews of Serverless yet.
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Requestly Reviews

Comparing Charles Proxy, Fiddler, Wireshark, and Requestly

On the pricing front, Requestly strikes a balance between affordability and functionality. It is an open-source tool, offering freemium to individual developers and affordable pricing plans for team collaboration. We have also clearly differentiated how Requestly differs from Wireshark and other web debugging tools like Proxyman, Modheader, and HTTP ToolKit separately.

Source: dev.to

Social recommendations and mentions

Serverless might be a bit more popular than Requestly. We know about 39 links to it since March 2021 and only 35 links to Requestly. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Serverless mentions (39)

Show HN: Winglang – a new Cloud-Oriented programming language
GP may have been referring to Serverless Framework (http://serverless.com//). - Source: Hacker News / over 2 years ago
Invocation error - can't find any results helping me to solve this issue
I deployed a lambda and http api gateway using a serverless.com (sls) template as a start. I get the following error when it processes a specific request:. Source: almost 3 years ago
Deploying Lambdas from Zipped Code on S3 vs Image Repository
Have you tried serverless.com ? It lets you have infrastructure as code. Source: over 3 years ago
[p] I built an open source platform to deploy computationally intensive Python functions as serverless jobs, with no timeouts
- With Lambda, you manage creating and building the container yourself, as well as updating the Lambda function code. There are tools out there such as sst or serverless.com which help streamline this. Source: over 3 years ago
AWS Lambda, a good host for a rest API?
If you'd like to use Lambda, usually you need to engineer FOR it, from day one, you don't (often) get to choose some other framework and shoehorn it into Lambda and Serverless. There's some great frameworks to help deploy code into Lambda easily and create REST endpoints for things, one such frameworks is serverless.com that helps easily deploy to it, but it lacks a framework for doing REST that also supports... Source: over 3 years ago

Requestly mentions (35)

Why You Need a Local-First API Client (With Hands-On Example)
If you want to try a local-first workflow, you can start using Requestly here: https://requestly.com. - Source: dev.to / 9 months ago
How to use Cursor to Generate API Testcases in Requestly
That’s where automation changes the game. By pairing Cursor, an AI-powered coding assistant, with Requestly's local-first API testing and mocking platform, you can offload the grunt work of writing tests to AI while keeping execution secure and reproducible on your own system. In this article, we’ll walk through how to set up Cursor with Requestly, generate test cases automatically, and run them end-to-end so that... - Source: dev.to / 9 months ago
These 20 Awesome API Clients Will Change How You Work with APIs
Requestly is a versatile browser extension and web client used to intercept, mock, and debug APIs in real-time—perfect for frontend developers. - Source: dev.to / about 1 year ago
Best Tools for GraphQL Development in 2025
Requestly is a powerful tool for modifying GraphQL responses, intercepting requests, and debugging API interactions. It allows developers to tweak request bodies, capture GraphQL traffic, and share sessions for easier debugging and collaboration. - Source: dev.to / over 1 year ago
How Not to Use AI in Software Development
Learn more at https://requestly.com/. - Source: dev.to / over 1 year ago