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Public API VS SerpApi

Compare Public API VS SerpApi and see what are their differences

PAP
Public API

Discover, compare, and integrate public APIs using real-time health monitoring, OpenAPI documentation, and live availability signals.

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Rating
0 reviews
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Alternatives Is it good?
SerpApi

Access real-time results from Google and 100+ search engines with a simple API. No proxies, CAPTCHAs, or parsing required.

Rating
0 reviews
Pricing
Freemium
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Alternatives Is it good?
KindProxy
KindProxy offers rotating residential and static ISP proxies across 198+ countries and regions. Featuring HTTP(S) and SOCKS5 support, sticky sessions, and city and ASN targeting, it's ideal for web scraping, SEO monitoring, market research, ad verifi sponsored

Which is more popular?

Based on our record, SerpApi seems to be more popular. It has been mentioned 107 times since March 2021.

social mentions
0 vs 107
Developer Tools popularity
13% vs 87%
alternatives listed
13 vs 240+

Base details

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

PAP
Public API
SerpApi
Website public-api.org serpapi.com
Pricing —
Freemium Official pricing
Company — Startup from the United States · 50 - 99 employees
Listed in
APIs API Tools Developer Tools Open Data +1
APIs Search API Developer Tools SEO SEO Tools SERP Rank Tracker Content Marketing +4

About Public API and SerpApi

In their own words, as submitted to SaaSHub.

PAP
Public API
SerpApi

No description of Public API yet.

We help you automate gathering data from search engines like Google, Bing, or Yahoo. What's cool about SerpApi is that it handles all the scraping complexities for you, like dealing with CAPTCHAs, managing IP addresses, and parsing data into a structured JSON. So you don't have to worry...

Read more about SerpApi

Features and specs

What each product offers, as listed by its team.

PAP
Public API 5 features
SerpApi 5 features
  • Free to Use
    Public API is completely free, making it accessible to developers of all levels without any financial barrier to entry. This is particularly beneficial for hobbyists, students, and those working on personal projects.
  • Comprehensive Directory
    The platform provides a well-organized directory of hundreds of free public APIs across numerous categories such as animals, finance, weather, games, and more, making it easy to discover useful APIs for various projects.
  • Simple and Clean Interface
    The website offers a straightforward, easy-to-navigate interface that allows developers to quickly browse, search, and filter APIs by category, HTTPS support, CORS availability, and authentication requirements.
  • Open Source
    The project is open source, meaning the community can contribute to it, suggest new APIs, report issues, and help maintain the directory, ensuring it stays up-to-date and relevant.
  • Useful Metadata
    Each API listing includes helpful metadata such as whether it supports HTTPS, requires authentication, and supports CORS, which helps developers quickly assess if an API meets their technical requirements before diving deeper.

Possible disadvantages

  • No Quality Assurance
    The platform acts as a directory and does not verify or guarantee the reliability, uptime, or quality of the listed APIs. Some APIs may be outdated, broken, or poorly maintained without any indication on the listing.
  • Limited API Details
    The listings provide only basic information about each API. Developers often need to visit the actual API documentation separately to understand endpoints, rate limits, response formats, and other critical details.
  • Outdated Listings
    Some APIs listed on the platform may no longer be active or may have changed their terms, endpoints, or availability. The directory doesn't always reflect the current status of every listed API in real time.
  • No User Reviews or Ratings
    The platform lacks a community feedback system such as user reviews, ratings, or usage statistics, making it harder for developers to gauge the real-world reliability and usefulness of a listed API before committing to it.
  • Limited Search and Filtering
    While basic category browsing is available, the search and filtering capabilities are relatively limited compared to more advanced API marketplaces. There is no ability to filter by popularity, response speed, or data format, for example.
  • Comprehensive Data Extraction
    SerpApi provides a powerful and easy-to-use API for extracting search engine results, allowing users to access a wide variety of data types such as ads, maps, organic results, and more from multiple search engines.
  • Real-time Data
    The API is designed to retrieve real-time search results, which is crucial for applications that rely on up-to-date information, such as market research and competitive analysis.
  • Easy Integration
    SerpApi offers detailed documentation and client libraries in multiple programming languages, simplifying the integration process for developers across different platforms.
  • Scalability
    SerpApi is able to handle large volumes of requests, making it suitable for businesses of various sizes, from startups to large enterprises needing to gather extensive data.
  • Automated Billing
    The platform provides automated billing and usage management which ensures that businesses can easily manage their costs and understand their data usage.

Analysis

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

PAP
Public API
SerpApi

Overall verdict

  • Public API (public-api.org) is a useful directory and aggregator site that helps developers discover free and public APIs across many categories, but it is a curation/listing service rather than an API provider itself, so its value depends on the quality and reliability of the third-party APIs it links to.

Why this product is good

  • Offers a centralized, searchable directory of numerous free and public APIs across diverse categories
  • Saves developers time by aggregating API options instead of searching individually across the web
  • Often includes brief descriptions, categories, and links to documentation for quick evaluation
  • Useful for discovering lesser-known or niche APIs that might not be found through mainstream searches
  • Generally free to browse and use as a discovery tool

Recommended for

  • Developers looking to quickly find free or public APIs for a project
  • Students and hobbyists exploring API integration for learning purposes
  • Startups seeking cost-effective third-party API options during early development
  • Researchers or hackathon participants needing rapid access to varied data sources
  • Anyone wanting a starting point for API discovery rather than a guaranteed production-grade API provider

Overall verdict

  • Overall, SerpApi is regarded as a reliable and efficient tool for accessing real-time search engine data, particularly beneficial for developers and businesses focused on SEO, market research, and data-driven decision making.

Why this product is good

  • SerpApi, a provider of Google Search API services, is considered good due to its ability to bypass search result scraping challenges by providing reliable and real-time search data with a simple interface. It also offers comprehensive support for various types of searches including images, news, and shopping. Its robust documentation, active customer support, and continuous updates to accommodate changes in search engine algorithms further enhance its reputation.

Recommended for

  • SEO professionals who need accurate and up-to-date search engine results.
  • Developers who want to integrate search functionalities into their applications without dealing with scraping issues.
  • Market researchers looking for insights into search trends and consumer behavior.
  • Businesses that need to monitor their online presence or competitors’ performance on search engines.

Videos

Walkthroughs and reviews on video.

PAP
Public API 0 videos + Add
SerpApi 3 videos + Add

No Public API videos yet. You could help us improve this page by suggesting one.

OpenAI Function Calling - Connect AI to the Internet

More videos

  • - Scrape Google Search using Python
  • - Scrape Google Maps reviews data using Python

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
PAP
Public API
SerpApi
13% 13%
Developer Tools
87% 87%
8% 8%
APIs
92% 92%
0% 0%
Web Scraping
100% 100%
100% 100%
Open Data
0% 0%

Questions & Answers

As answered by people managing Public API and SerpApi.

Why should a person choose your product over its competitors?

SerpApi's answer:

We provide more search engines under one subscription.

How would you describe the primary audience of your product?

SerpApi's answer:

Developers/Companies who need data from search engines.

Which are the primary technologies used for building your product?

SerpApi's answer:

Ruby on Rails and MongoDB

What makes your product unique?

SerpApi's answer:

We're the first web scraping company that focus on scraping search engines.

What's the story behind your product?

SerpApi's answer:

Back in 2017, Julien Khaleghy, the founder of SerpApi, built an iOS app that can analyze data from a picture. iOS didn't have a proper machine learning framework back then. It was challenging: iPhones' RAM were limited, no GPU or no dedicated chip acceleration were available, using only CPU was painfully slow, and compiling/porting C code from machine learning framework like Tensorflow or Caffe to iOS wasn't straightforward. Oddly, all of this wasn't the most difficult part of this project. Collecting images from Google Images was.

In these projects, 80% of his time ended up being spent on scraping and parsing Google Images. And maybe only 20% on actual machine learning model training, UI design of the actual apps, and iOS programming. This is how SerpApi was born.

Who are some of the biggest customers of your product?

SerpApi's answer:

  • Airbnb
  • Nvidia
  • Meta
  • Shopify
  • Grubhub
  • and more!

User comments

Share your experience with using Public API and SerpApi. For example, how are they different and which one is better?

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Social recommendations and mentions

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

PAP
Public API 0 mentions
SerpApi 107 mentions

Tracking Public API since Jan 2026.

  • Markdown vs. JSON: Which Response Format Should You Use?
    > > _Ways to get Markdown output_ An application can use different response formats for different tasks. For example, a research agent could consume Markdown for a broad search-and-summarize step, while a separate data collection... - Source: dev.to / 2 days ago
  • Ask HN: Who is hiring? (November 2026)
    SerpApi | https://serpapi.com | Junior to Senior Fullstack Engineer multiple positions | Customer Success Engineer | Hiring Coordinator | Python/Ruby/PHP/Js/Rust/Kotlin/C#/Crystal/Nim/Elixir Developer Advocate positions | Based in... - Source: Hacker News / 8 days ago
  • I turned my inbox into a graveyard. 199 ghosts rose, and one had been silent for 7.8 years
    Breach list: Have I Been Pwned (CC BY 4.0). Delete links: JustDeleteMe (MIT). Model: Gemma, run with Ollama. Live search: SerpApi. The film's voice is from Fish Audio, which isn't open source; its music and sound effects come from the... - Source: dev.to / 9 days ago

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