
Metaplane
Know Your Data
Flatlogic
Qualdo™
Motion Project
Instadeq
DataQuest Beta
Percival is a declarative data query and visualization language.

nventr Agent
NiceAgents
Quickfix.ai
QuickIntell
BrownAgents.ai
Smith.ai
Dialzara
Easily build AI agents that connect to any service, no-code

Which is more popular?
Based on our record, Percival seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | percival.ink | quickagent.app |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
An editorial look at what each product does well and who it suits.


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Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
COMPLIMENTED HYPE BEAST | PARFUMS DE MARLY PERCIVAL FRAGRANCE REVIEW
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Recommendations tracked on public social media and blogs since March 2021.


I struggle to understand the Clojure/Datomic dialect, but I agree generally. I recommend Percival for playing around with Datalog in a friendly notebook environment online: https://percival.ink/ Although there’s no “ANSI SQL” equivalent... - Source: Hacker News / over 1 year ago
You could theoretically use Datalog anywhere you're currently using a SELECT SQL statement - it's a declarative way to produce a set of tuples given some existing sets of tuples. But, Datalog is much better at deductive reasoning... - Source: Hacker News / almost 4 years ago
I haven't written a parser with Chumsky, bit I've played with a little one a bit if you wanna see an example syntax. The error reporting for this project is implemented with `ariadne` which is also really slick. Parser:... - Source: Hacker News / over 4 years ago
Tracking QuickAgent since Jun 2025.
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Understand datasets & improve data quality, by Google PAIR
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