
Dropbox DocSend
PDFTrackr
TransferChain
iDeals Virtual Data Room
Ansarada
Literal
Ellty
Papermark is the open-source DocSend alternative with built-in analytics and custom domains.

QuickNode Marketplace
SwiftNodes
Hydromancer provides low-latency Hyperliquid APIs, streaming infrastructure, historical datasets, and orderbook data for ambitious builders and traders.

Which is more popular?
Based on our record, Papermark seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | papermark.com | hydromancer.xyz |
| Pricing | ||
| Company | — | Startup from The Netherlands · 1 - 9 employees · 2024 |
| Listed in |
In their own words, as submitted to SaaSHub.


Secure Document Sharing and Data Rooms
Hydromancer is data infrastructure built specifically for Hyperliquid. It provides REST APIs, real-time WebSocket streams, granular orderbook data and historical datasets for building applications, monitoring markets and running research. App developers use Hydromancer to build trading...
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
Review Notebook Lokal: Papermark.id // Notebook Mevvah Harga Murah
No Hydromancer 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 Papermark and Hydromancer.
Papermark's answer
Founders fundraising or in M&A process.
Hydromancer's answer:
Hyperliquid builders. That includes trading apps, portfolio and analytics products, HIP-3 and HIP-4 market deployers, and market makers who need low-latency order-book data.
Papermark's answer
Papermark is the only open-source data room provider on the market. Papermark doesn't have a storage limit like many competitors. Papermark's price is fixed and transparent, no additional fees and hidden charges. Papermark's onboarding is without a demo, and instant - you can build a fully functional data room in minutes. Papermark's founders personally respond to every customer inquiry.
Hydromancer's answer:
Hydromancer is a Hyperliquid-only data layer, not an RPC provider. It extends the native API with builder endpoints and batch reads for 1,000+ wallets, and streams the L4 orderbook with maker addresses. The feed is peered to a Foundation node and Hydromancer's own active-set validator, so teams do not have to run that infrastructure themselves.
Papermark's answer
Husband and wife duo bootstrapped and coded a Docsend alternative.
Hydromancer's answer:
The team built Hyperdash, a Hyperliquid app later acquired by pvp.trade, and kept hitting the limits of the public API. Hydromancer is the data infrastructure they wanted as builders. It has been Hyperliquid-only since 2024, shaped by teams using it in production. Reservoir, the free historical dataset, is the public-good side of that work.
Papermark's answer
Fixed, transparent pricing. Easy and smooth onboarding. In-depth analytics.
Hydromancer's answer:
The public Hyperliquid API is free, but it rate-limits heavy reads and does not offer these batch or builder endpoints. RPC providers solve node access, not this data layer. Hydromancer is for teams that already have trading access and need faster reads, order-book streaming, and historical data without running their own nodes.
Hydromancer's answer:
A JSON REST API on the same POST /info shape as Hyperliquid, plus WebSocket streaming and a Python SDK. Under that, Hydromancer runs its own Hyperliquid nodes and an active-set validator, peered in AWS Tokyo. Historical data is stored as Parquet on S3. The site does not publish the application languages, so I would not name those here.
Hydromancer's answer:
These are teams named on the site and in the docs, not a ranking by revenue.
tread.fi, HyENA, Liquid, SEDA, Based, Outcome, Native Markets, Senpi & fomo
Share your experience with using Papermark and Hydromancer. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Participating in the OSS.GG hackathon has been an exciting and enriching experience. Engaging with projects from multiple partners like Dub, Formbricks, Hanko, OpenBB, Papermark, Twenty, and Unkey offered me the opportunity to explore... - Source: dev.to / about 2 years ago
Tracking Hydromancer since Sep 2026.
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