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

GNU Make
SCons
SBT
Ninja Build
FinalBuilder
npm
Meson
CMake is an open-source, cross-platform family of tools designed to build, test and package software.

Which is more popular?
Based on our record, CMake seems to be a lot more popular than Underscore Done. While we know about 55 links to CMake, we've tracked only 1 mention of Underscore Done.
Website, pricing, platforms and company facts side by side.
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| Website | underscoredone.com | cmake.org |
| Pricing | — | |
| Company | Startup from the United States · 2026 | — |
| 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
We recommend LibHunt CMake for discovery and comparisons of trending CMake projects.
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.
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CMake for Dummies
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Underscore Done and CMake.
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 CMake. For example, how are they different and which one is better?
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
I used CMAKE as my compiling tool followed by make. - Source: dev.to / over 1 year ago
All this C++ project can't be ran as simple C++ code, so I will be building this whole package using CMake. It will streamline building this project onto other computers. - Source: dev.to / over 1 year ago
For knowledge in this aspect, you can refer to the relevant documents of the CMake build tool: https://cmake.org/. - Source: dev.to / almost 2 years ago
When comparing Underscore Done and CMake, 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.
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GNU Make is a tool which controls the generation of executables and other non-source files of a program from the program's source files.
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An open protocol for internet-native payments from Coinbase
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SCons is an Open Source software construction tool—that is, a next-generation build tool.
Compare SCons to Underscore Done or CMake: