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Underscore Done VS https://open-gpt.app/

Compare Underscore Done VS https://open-gpt.app/ and see what are their differences

Underscore Done

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

Rating
0 reviews
Pricing
Paid $0.01 (Per api call)
Alternatives Is it good?
https://open-gpt.app/

Create ChatGPT Application in seconds

Rating
0 reviews
Alternatives Is it good?
AnswerProbe
Evidence-preserving AI visibility monitoring for small B2B SaaS teams. sponsored
Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Which is more popular?

Based on our record, Underscore Done seems to be more popular. It has been mentioned 1 time since March 2021.

social mentions
1 vs 0
AI popularity
100% vs 0%

Base details

Website, pricing, platforms and company facts side by side.

Underscore Done
https://open-gpt.app/
Website underscoredone.com open-gpt.app
Pricing
Paid $0.01 (Per api call) Official pricing
—
Company Startup from the United States · 2026 —
Listed in
APIs Developer APIs AI Agents AI +1
—

About Underscore Done and https://open-gpt.app/

In their own words, as submitted to SaaSHub.

Underscore Done
https://open-gpt.app/

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

Read more about Underscore Done

No description of https://open-gpt.app/ yet.

Features and specs

What each product offers, as listed by its team.

Underscore Done 0 features
https://open-gpt.app/ 5 features

No features have been listed yet.

  • Accessible AI Chat Interface
    Provides a user-friendly web-based interface for interacting with GPT-based AI models without needing to set up API access or coding knowledge.
  • No Installation Required
    Being a web application, it can be used directly from a browser without downloading or installing any software.
  • Potentially Free or Low-Cost Access
    Many GPT wrapper sites like this offer free tiers or lower-cost access compared to official API pricing, making AI chat more accessible to casual users.
  • Quick Setup
    Users can typically start chatting almost immediately after visiting the site, with minimal account creation or configuration steps.
  • Cross-Platform Compatibility
    Since it runs in a browser, it can be accessed from various devices including desktops, tablets, and smartphones without platform-specific versions.

Possible disadvantages

  • Uncertain Reliability
    Third-party GPT wrapper websites often depend on underlying API access that can be unstable, rate-limited, or discontinued without notice, affecting consistent availability.
  • Data Privacy Concerns
    Using an unofficial third-party service to process conversations raises questions about how user data and conversation history are stored, used, or shared.
  • Limited Transparency
    It may be unclear which underlying AI model version is being used, how up-to-date it is, or what modifications have been made to the base model's behavior.
  • Potential Hidden Costs or Ads
    Free-to-use AI wrapper sites often monetize through ads, premium upsells, or data collection, which may not be clearly disclosed to users upfront.
  • Lack of Official Support
    Unlike official AI platforms, unofficial wrapper sites may lack dedicated customer support, regular updates, or accountability if issues arise.

Analysis

An editorial look at what each product does well and who it suits.

Underscore Done
https://open-gpt.app/

No analysis of Underscore Done yet.

Overall verdict

  • I don't have verified, up-to-date information about open-gpt.app, and I'm unable to browse the internet to check its current status, reputation, or legitimacy. I cannot confidently vouch for or against this specific product/service.

Why this product is good

  • I lack real-time access to verify this website's current content, reputation, or user reviews
  • Domain names and their associated services can change ownership and purpose over time
  • Without verification, I cannot confirm if this is a legitimate service, its features, or its safety
  • There are many similarly-named AI tools of varying quality and trustworthiness, making specific verification important

Recommended for

  • Before using this site, research current user reviews on trusted platforms
  • Check the site's SSL certificate, privacy policy, and terms of service
  • Look for verified information about the company or developers behind it
  • Consider well-established alternatives like ChatGPT (OpenAI), Claude (Anthropic), or Gemini (Google) if you need reliable AI assistance
  • Exercise caution with any site requesting payment or personal information without clear verification of legitimacy

Category popularity

How often each product is chosen within a category, 0–100% relative to the other.

Score bands 0–20 21–40 41–50 51–60 61–100
Underscore Done
https://open-gpt.app/
100% 100%
AI
0% 0%
100% 100%
APIs
0% 0%
100% 100%
Developer APIs
0% 0%
100% 100%
AI Agents
0% 0%

Questions & Answers

As answered by people managing Underscore Done and https://open-gpt.app/.

What makes your product unique?

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.

How would you describe the primary audience of your product?

Underscore Done's answer

Ai Agents that work on behalf of people.

User comments

Share your experience with using Underscore Done and https://open-gpt.app/. For example, how are they different and which one is better?

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Social recommendations and mentions

Recommendations tracked on public social media and blogs since March 2021.

Underscore Done 1 mention
https://open-gpt.app/ 0 mentions
  • Why I'm Passionate About x402
    _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 / 3 days ago

Tracking https://open-gpt.app/ since Jul 2023.

Alternatives to Underscore Done and https://open-gpt.app/

When comparing Underscore Done and https://open-gpt.app/, you can also consider the following products.

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