OpenGrant vs Onyx

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

OpenGrant compared with Onyx
Detail	OpenGrant	Onyx
What it does	Search UK grant schemes and funders from Node.js or the terminal	Connected things and journeys, crafted like gems
Stage	Not given	Not given
Founded	Not given	Not given
Based in	GB	IT
Pricing model	Open source	Not given
Pricing	Not given	Not given
Key features	Search grants with filters for region, organisation, theme and deadline Count matching grant schemes and get link to website search Retrieve public facts for individual grant schemes Look up funder profiles by charity number, slug or name No API key required No runtime dependencies MIT licensed open source Rate limit of 60 requests per 60 seconds per client Command-line tool with --json output option Access to OpenGrant MCP server tools	Docstack NoSQL Framework with relational structure and admin tooling Prismal Design System with reusable and customizable components React component library with responsive props and accent theming Prismal WordPress theme integrating React components in Gutenberg Database that runs inside applications with filtered replication and encryption
What makes it different	No API key needed to use the SDK Search UK grant schemes and funders from code or terminal MIT licensed and open source	Good abstractions that make complexity composable rather than hiding it Pragmatic UI/UX blending functionality with great user experiences
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	2 no change since last check
Trust Flow (Majestic)	0	0
Citation Flow (Majestic)	15	17
Referring domains (Majestic)	5	2

4 details filled in for both companies.

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