
AgentGatePay
x402
Real-world tasks your agent can't do alone.

Microsoft Visual Studio
IntelliJ IDEA
Android Studio
Sublime Text
VS Code
Eclipse
PyCharm
Xcode is Apple’s powerful integrated development environment for creating great apps for Mac, iPhone, and iPad. Xcode 4 includes the Xcode IDE, instruments, iOS Simulator, and the latest Mac OS X and iOS SDKs.

Which is more popular?
Based on our record, Xcode seems to be a lot more popular than Underscore Done. While we know about 149 links to Xcode, we've tracked only 1 mention of Underscore Done.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | underscoredone.com | developer.apple.com |
| Pricing | — | |
| Company | Startup from the United States · 2026 | Startup from the United States |
| Listed in |
In their own words, as submitted to SaaSHub.


Underscore Done (_done) is a suite of pay-per-call utility APIs built for AI agents. No API keys, no subscriptions - agents pay per request with USDC via the x402 protocol
No description of Xcode yet.
What each product offers, as listed by its team.


No features have been listed yet.
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Underscore Done yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No Underscore Done videos yet. You could help us improve this page by suggesting one.
Getting Started: An Overview of Xcode
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Underscore Done and Xcode.
Underscore Done's answer
We provide data and actions that AI cannot achieve.
Also we don't require accounts, registration, api keys. And we charge per usage and never charge monthly subscriptions.
Underscore Done's answer
Ai Agents that work on behalf of people.
Share your experience with using Underscore Done and Xcode. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of Underscore Done yet. Be the first one to post
While Xcode is primarily free, a subscription to the Apple Developer Program is required for iOS app development at $99 per year.
Occupying the sixth spot on my list is Xcode, Apple's flagship IDE. And yes, it's probably most well-known for macOS, iOS, watchOS, and tvOS development, but Xcode is also an excellent choice for C++ developers...
Apple’s integrated development environment (IDE) for macOS is Xcode, which can be used to create software for macOS, iOS, iPadOS, watchOS, and tvOS. In addition, it provides Command Line Tools (CLT), which enable...
Recommendations tracked on public social media and blogs since March 2021.


_done is a catalog of small, pay-per-call utility APIs aimed at AI agents: things like DNS and WHOIS lookups, screenshots, OCR, hashing, QR codes, and SEO extraction. Every call costs one cent in USDC over x402. There's no account and no... - Source: dev.to / about 1 month ago
The split is cleaner than most forum threads make it sound. Apple's toolchain (the compiler with the iOS SDK, the code signer, the Simulator and the uploader) only ships inside Xcode, and Xcode only runs on macOS. Everything that is... - Source: dev.to / 12 days ago
Xcode is Apple's IDE for iOS, macOS, and the rest of Apple's platforms. The underlying build system is Swift Build, and xcodebuild is the command-line executable bundled with Xcode to interact with projects from the terminal, for example... - Source: dev.to / 23 days ago
Install XCode, Apple’s integrated development environment (IDE), which includes much needed debugging tools and iPhone simulators. - Source: dev.to / 8 months ago
When comparing Underscore Done and Xcode, you can also consider the following products.

Enable AI agents to make autonomous payments with AP2 mandates and X402 protocol. Multi-chain crypto, budget controls, instant settlement.
Compare AgentGatePay to Underscore Done or Xcode:

Microsoft Visual Studio is an integrated development environment (IDE) from Microsoft.
Compare Microsoft Visual Studio to Underscore Done or Xcode:

An open protocol for internet-native payments from Coinbase
Compare x402 to Underscore Done or Xcode:
