Rare find

JSONSchema. Define what data an AI tool can accept and return.

github.com/mattt/JSONSchema

Problem

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Audience

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

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Updates

August 2025

Release —1.3.1 Aug 28
Bump minimum Swift Collections version to 1.1.0 (#14) Aug 28

July 2025

Transfer project from Loopwork (#13) Jul 24

June 2025

Update README Jun 27
Add test to ensure schemas can be round-tripped through JSONEncoder a… Jun 14
Release —1.3.0 Jun 14
Bump version to 1.3.0 Jun 14
Fix regression in encoding of properties and provide affordances for … Jun 14

May 2025

Release —1.2.0 May 28
Bump version to 1.2.0 May 28
Preserve ordering of object properties (#9) May 28
Release —1.1.0 May 5
Bump version to 1.1.0 May 5
Change `typeName` to return JSON Schema type name, not capitalized (#8) May 5
Add convenience method for checking compatibility of value against sc… May 5
Add convenience properties for accessing associated values in `JSONSc… May 5

April 2025

Update README.md Apr 1

March 2025

Release —1.0.0 Mar 18
Update README (#3) Mar 18
Add documentation comments (#4) Mar 18
Refactor handling of special cases .any and .not(.any) (#2) Mar 18
Add CI workflow (#1) Mar 18
Initial commit Mar 18