
GNU Make
CMake
SCons
npm
FinalBuilder
Ender
JSHint
SBT is a build tool for Scala, like Ant or Maven but with hieroglyphics.

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

Which is more popular?
Underscore Done might be a bit more popular than SBT. We know about 1 link to it since March 2021 and only 1 link to SBT.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | scala-sbt.org | underscoredone.com |
| Pricing | ||
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of SBT yet.
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
What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
Walkthroughs and reviews on video.
Inside PWC Engine Remanufacturer SBT
More videos
No Underscore Done videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing SBT and Underscore Done.
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 SBT and Underscore Done. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


NOTE: I won’t mention SBT and Leiningen here because, with all due respect, they are niche build tools. I also won’t discuss Kobalt for the same reason (besides, it’s no longer actively maintained). Additionally, I won’t touch upon Bazel... - Source: dev.to / almost 3 years ago
_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
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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.
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