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

Which is more popular?
PayPal might be a bit more popular than Underscore Done. We know about 1 link to it since March 2021 and only 1 link to Underscore Done.
Website, pricing, platforms and company facts side by side.
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| Website | underscoredone.com | paypal.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 PayPal 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.
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STOP Using PayPal - 5 Reasons You Should Stop Using PayPal in Your Business or On Your Website!
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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 PayPal.
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 PayPal. 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
I used PayPal for years, but lately it’s been one of the most frustrating payment services I’ve dealt with. Their customer support feels almost nonexistent — long wait times, scripted replies that don’t solve...
You’re probably already familiar with PayPal, but this popular service deserves to be on the list of the best payment processing companies for its ease of use and ubiquity. It’s a good choice for small businesses...
The best payment method for freelancers varies based on individual needs. Wise and Revolut are excellent for their multi-currency account features and using the mid-market exchange rate, while PayPal is globally...
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 / 13 days ago
(I live in USA) When I go to payments under my shopify account to add paypal as a payment method I am having trouble doing so. I first click activate paypal > activate paypal express checkout which directs me to a "security challenge"... Source: over 3 years ago
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