Software Alternatives & Startups

CodePen VS HasMCP

Compare CodePen VS HasMCP and see what are their differences

CodePen

A front end web development playground.

Rating
0 reviews
HasMCP

Convert your API into MCP Server in seconds. No-code, GUI based MCP Framework that creates, deploys and serves MCP servers with built-in auth, realtime logs and telemetry. Make your product available in LLMs today!

Rating
0 reviews
Pricing
Open source Freemium
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, CodePen seems to be more popular. It has been mentioned 513 times since March 2021.

social mentions
513 vs 0
Text Editors popularity
100% vs 0%
alternatives listed
240+ vs 27

Base details

Website, pricing, platforms and company facts side by side.

CodePen
HasMCP
Website codepen.io hasmcp.com
Pricing —
Open source Freemium Official pricing
Platforms —
Docker Cloud
Company — Startup from the United States · 1 - 9 employees · 2026
Listed in

About CodePen and HasMCP

In their own words, as submitted to SaaSHub.

CodePen
HasMCP

No description of CodePen yet.

API to MCP Server Automated OpenAPI Mapping: Streamlines integration by converting OpenAPI (v3.0/3.1) and Swagger documentation directly into LLM-ready Model Context Protocol (MCP) tools. This eliminates the need for manual "glue code," ensuring accurate, no-code setup in seconds. MCP Auth Native...

Read more about HasMCP

Features and specs

What each product offers, as listed by its team.

CodePen 6 features
HasMCP 7 features
  • Real-time Collaboration
    Developers can collaborate with others in real-time, making it easy to work on projects with teammates or seek help from the community.
  • Immediate Visual Feedback
    CodePen allows you to see the results of your code as you write it, which is highly beneficial for learning and debugging.
  • Integrated Development Environment (IDE)
    CodePen provides a comfortable and feature-rich online IDE environment with syntax highlighting, autocomplete, and more.
  • Community-Driven
    Users can share their work with the CodePen community, receive feedback, and explore a wide range of projects created by others.
  • Extensive Resources
    CodePen offers a wealth of examples and templates for various web development tasks, making it a useful resource for learning and inspiration.
  • Cross-Device Accessibility
    Being an online platform, CodePen can be accessed from any device with an internet connection, making it convenient for developers on the move.

Possible disadvantages

  • Limited Offline Functionality
    Since CodePen is primarily an online tool, it requires an internet connection for most of its features to work, limiting its usefulness in offline environments.
  • Performance Constraints
    Complex or resource-intensive projects may not perform as well on CodePen as they would in a full-fledged local development environment.
  • Subscription Costs
    While many features are free, advanced functionalities and additional storage options require a paid subscription, which may not be ideal for all users.
  • Limited Backend Capabilities
    CodePen is primarily designed for front-end development, so it offers limited support for backend technologies, making it less suitable for full-stack or server-side development.
  • Dependency Management
    Managing dependencies and libraries can be cumbersome compared to local development environments which have better tools for this purpose, like npm.
  • Security Concerns
    Sharing projects with the public can expose your code and assets to unauthorized use, posing potential intellectual property and security risks.
  • OpenAPI Spec to MCP Server
    Converts OpenAPI Spec and Swagger spec to MCP Server in seconds
  • MCP Auth
    Authenticate MCP Server with server's OAuth2 or API Key
  • MCP Secret Manager
    Allow storing secret for the MCP server in vault
  • MCP Observability
    Tail realtime logs between MCP server and LLMs
  • MCP Telemetry
    Realtime telemetry logs that shares token usage, optimizations, payload sizes and all calls
  • MCP Analytics
    Access longer term analytics, see usage over time
  • Proxy Headers
    Pass headers directly from LLM to API

Analysis

An editorial look at what each product does well and who it suits.

CodePen
HasMCP

Overall verdict

  • Yes, CodePen is considered a good platform for web developers, both beginners and experienced. It offers a wide array of features that facilitate creative development and community engagement.

Why this product is good

  • CodePen is a popular online code editor and community platform for front-end developers to experiment with creating and sharing HTML, CSS, and JavaScript snippets. It provides an easy-to-use interface and real-time previews, making it a valuable tool for learning, prototyping, and sharing web development work. It also fosters a community where developers can showcase their projects, receive feedback, and learn from each other.

Recommended for

  • Front-end developers who want to quickly prototype and test web designs.
  • Beginners in web development looking to learn and receive feedback from the community.
  • Educators and students interested in a platform to showcase projects and collaborate.
  • Developers who want to explore creative coding and share their work with a community.

Overall verdict

  • HasMCP appears to be a useful resource for developers and teams working with the Model Context Protocol (MCP), offering a centralized directory and tools to discover, evaluate, and integrate MCP servers into AI applications. However, as with any emerging platform, its value depends on the breadth of its listings, accuracy of information, and ongoing maintenance.

Why this product is good

  • Provides a centralized directory for discovering MCP servers, saving time compared to manual searching
  • Helps developers evaluate and compare different MCP integrations for their AI workflows
  • Focuses on the growing Model Context Protocol ecosystem, which is relevant for modern AI tooling
  • Can lower the barrier to entry for teams looking to connect AI models with external data and tools

Recommended for

  • Developers building AI applications that need MCP server integrations
  • Teams exploring the Model Context Protocol ecosystem
  • AI engineers looking to connect LLMs with external data sources and tools
  • Businesses evaluating MCP-based solutions for automation and context-aware AI

Videos

Walkthroughs and reviews on video.

CodePen 3 videos + Add
HasMCP 3 videos + Add

What Is Codepen?

More videos

  • - Learn to use CodePen from a co-founder of CodePen
  • - Using CodePen For Inspiration & Learning

Public API to MCP Server (step-by-step guide)

More videos

  • - Create Token Optimized Brave Search MCP Server
  • - API to MCP Server in Seconds

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
CodePen
HasMCP
100% 100%
0% 0%
0% 0%
100% 100%
100% 100%
0% 0%
0% 0%
AI
100% 100%

Questions & Answers

As answered by people managing CodePen and HasMCP.

Why should a person choose your product over its competitors?

HasMCP's answer:

Built-in auth, realtime logs, telemetry, token optimization with interceptors and secret management make HasMCP win over all competitors.

Which are the primary technologies used for building your product?

HasMCP's answer:

Go, Vue.js, Taildwincss, Redis, Postgres, Sqlite

How would you describe the primary audience of your product?

HasMCP's answer:

Developers SaaS owners

What's the story behind your product?

HasMCP's answer:

I was working on MCP Servers and I found it is hassle to create one using the tools/frameworks. But not only the creation process, the servers had be downloaded via npx or python at that time. As an alternative, I had to wrap an existing endpoint by writing tons of code. Another thing is the change on the official MCP specs was lightning fast and are not simple just to update your server, you have to write code again to catch it up with the latest spec.

After understanding the underlying protocol communication, I decided to remove this bottleneck from developers life and democratize to access MCP Server with just sharable URL instead of arbitrary local code execution.

Another big challenge was token optimization; I shouldn't have been just returning the what endpoint returns, that was including a lot of unnecessary sometimes confidential information, so an interceptor idea was born. HasMCP supports Jmespath and JS interceptors that you can modify the payload before returning to the client. Either you need to remove a PII column or just prune the data that you need, HasMCP is here to help.

Authentication is one of the other pain points in MCP world; HasMCP supports OAuth2 authentication with elicitation when the OAuth2 client credentials are defined in the provider. So, no more thinking about how I am going to authenticate the user. It is ready to use with just standard OAuth2 client input values. The access/refresh tokens are stored in encrypted format in the session storage. If your API does not support OAuth2, I got you covered too: Your users can define secrets (encrypted environment values) to send specific header values on tool calls.

Realtime access logs and metrics gives you full visibility on what is happening behind the scene. What is the request/response payload in JSONRPC 2.0 format, what MCP client/server side notifications have been sent. What methods have been called, all available in realtime only (not stored)!

When we expose MCPs to LLMs we give full control on the tools, another killer feature of HasMCP is toggling the tools what is being exposed to LLM in realtime. You can simply toggle the ones and authorize access for LLMs and this takes immediate affect, so you can kill a tool or add new one on the fly. This increases the security and give the user to have granular control what is allowed or not. While talking to one LLM you can expose a subset of read only tools whereas some superusers would need to use the write endpoints, this selection is just a toggle in HasMCP. Once you created an API provider, you can create unlimited servers from it, you can just focus on the secure design of your system.

HasMCP is API first, and majority of these functionality also available in opensource community edition. It is time to make your product 7/24 available to ChatGPT, Gemini, VSCode, Cursor, Claude, and all other LLMs that has MCP client with realtime governance. Today is the day to build an MCP server for your product!

What makes your product unique?

HasMCP's answer:

HasMCP is the first GUI MCP Server framework that supports request/response altering with interceptors.

User comments

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Reviews and articles

External articles and on-site reviews we used to compare the two products.

CodePen no reviews yet
HasMCP no reviews yet

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

CodePen 513 mentions
HasMCP 0 mentions
  • CSS Properties You Should Know for Better Text Designs
    > I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / 2 months ago
  • Ambient Website Background Clouds
    Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 3 months ago
  • Haunted Loop: A Pure-CSS Halloween Scene
    Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 12 months ago

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Tracking HasMCP since Feb 2026.

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