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

ChatGPT
Gemini
Claude AI
Claude by Anthropic
OpenRouter
Hugging Face
Eden AI
GPT-3 access without the wait

Which is more popular?
Based on our record, OpenAI seems to be a lot more popular than Underscore Done. While we know about 404 links to OpenAI, 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 | openai.com |
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| Company | Startup from the United States ยท 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 OpenAI 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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OpenAI GPT-3 - Good At Almost Everything! ๐ค
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How often each product is chosen within a category, 0โ100% relative to the other.


As answered by people managing Underscore Done and OpenAI.
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 OpenAI. 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
But let's cut through the hype. When you actually look under the hood of what OpenAI Sites provides versus what Hatrio has spent years perfecting, a very clear divide emerges. OpenAI has built the ultimate IT...
OpenAI is an artificial intelligence research laboratory consisting of the for-profit corporation OpenAI LP and its parent company, the non-profit organization OpenAI Nonprofit. OpenAI is driven by the goal of...
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 / 15 days ago
The image generation engine, which can be OpenAI, ComfyUI, AUTOMATIC1111, and Gemini. - Source: dev.to / 2 months ago
In addition, implementing voice activity detection (VAD) locally on the client device prevents empty background noise from streaming to your API endpoints. According to infrastructure benchmarks published by OpenAI research leads,... - Source: dev.to / 17 days ago
OpenAPI is a standard which uses JSON Schema to describe HTTP APIs. OpenAI made it here not because I have a fun mood today - which is also true. They are here because modern AI models (not only OpenAI's) support JSON Schema to force a... - Source: dev.to / 24 days ago
When comparing Underscore Done and OpenAI, you can also consider the following products.

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ChatGPT is a powerful, open-source language model.
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An open protocol for internet-native payments from Coinbase
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Gemini, formerly known as Bard, is a generative artificial intelligence chatbot developed by Google. Based on the large language model (LLM) of the same name, it was launched in 2023 in response to the rise of OpenAI's ChatGPT.
Compare Gemini to Underscore Done or OpenAI: